Upload folder using huggingface_hub (part 6)

.gitattributes

@@ -164,3 +164,8 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 .venv/lib/python3.12/site-packages/fontTools/pens/momentsPen.cpython-312-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text
 .venv/lib/python3.12/site-packages/fontTools/qu2cu/qu2cu.cpython-312-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text
 .venv/lib/python3.12/site-packages/fontTools/subset/__pycache__/__init__.cpython-312.pyc filter=lfs diff=lfs merge=lfs -text
+.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/__pycache__/otConverters.cpython-312.pyc filter=lfs diff=lfs merge=lfs -text
+.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/__pycache__/otData.cpython-312.pyc filter=lfs diff=lfs merge=lfs -text
+.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/__pycache__/otTables.cpython-312.pyc filter=lfs diff=lfs merge=lfs -text
+.venv/lib/python3.12/site-packages/fontTools/varLib/instancer/__pycache__/__init__.cpython-312.pyc filter=lfs diff=lfs merge=lfs -text
+.venv/lib/python3.12/site-packages/fontTools/varLib/iup.cpython-312-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text

.venv/lib/python3.12/site-packages/fontTools/svgLib/__init__.py

@@ -0,0 +1,3 @@
+from .path import SVGPath, parse_path
+
+__all__ = ["SVGPath", "parse_path"]

.venv/lib/python3.12/site-packages/fontTools/svgLib/path/__init__.py

@@ -0,0 +1,64 @@
+from fontTools.pens.transformPen import TransformPen
+from fontTools.misc import etree
+from fontTools.misc.textTools import tostr
+from .parser import parse_path
+from .shapes import PathBuilder
+
+__all__ = [tostr(s) for s in ("SVGPath", "parse_path")]
+
+
+class SVGPath(object):
+    """Parse SVG ``path`` elements from a file or string, and draw them
+    onto a glyph object that supports the FontTools Pen protocol.
+
+    For example, reading from an SVG file and drawing to a Defcon Glyph:
+
+    .. code-block::
+
+        import defcon
+        glyph = defcon.Glyph()
+        pen = glyph.getPen()
+        svg = SVGPath("path/to/a.svg")
+        svg.draw(pen)
+
+    Or reading from a string containing SVG data, using the alternative
+    'fromstring' (a class method):
+
+    .. code-block::
+
+        data = '<?xml version="1.0" ...'
+        svg = SVGPath.fromstring(data)
+        svg.draw(pen)
+
+    Both constructors can optionally take a 'transform' matrix (6-float
+    tuple, or a FontTools Transform object) to modify the draw output.
+    """
+
+    def __init__(self, filename=None, transform=None):
+        if filename is None:
+            self.root = etree.ElementTree()
+        else:
+            tree = etree.parse(filename, parser=etree.XMLParser())
+            self.root = tree.getroot()
+        self.transform = transform
+
+    @classmethod
+    def fromstring(cls, data, transform=None):
+        self = cls(transform=transform)
+        self.root = etree.fromstring(data, parser=etree.XMLParser())
+        return self
+
+    def draw(self, pen):
+        if self.transform:
+            pen = TransformPen(pen, self.transform)
+        pb = PathBuilder()
+        # xpath | doesn't seem to reliable work so just walk it
+        for el in self.root.iter():
+            pb.add_path_from_element(el)
+        original_pen = pen
+        for path, transform in zip(pb.paths, pb.transforms):
+            if transform:
+                pen = TransformPen(original_pen, transform)
+            else:
+                pen = original_pen
+            parse_path(path, pen)

.venv/lib/python3.12/site-packages/fontTools/svgLib/path/arc.py

@@ -0,0 +1,153 @@
+"""Convert SVG Path's elliptical arcs to Bezier curves.
+
+The code is mostly adapted from Blink's SVGPathNormalizer::DecomposeArcToCubic
+https://github.com/chromium/chromium/blob/93831f2/third_party/
+blink/renderer/core/svg/svg_path_parser.cc#L169-L278
+"""
+
+from fontTools.misc.transform import Identity, Scale
+from math import atan2, ceil, cos, fabs, isfinite, pi, radians, sin, sqrt, tan
+
+TWO_PI = 2 * pi
+PI_OVER_TWO = 0.5 * pi
+
+
+def _map_point(matrix, pt):
+    # apply Transform matrix to a point represented as a complex number
+    r = matrix.transformPoint((pt.real, pt.imag))
+    return r[0] + r[1] * 1j
+
+
+class EllipticalArc(object):
+    def __init__(self, current_point, rx, ry, rotation, large, sweep, target_point):
+        self.current_point = current_point
+        self.rx = rx
+        self.ry = ry
+        self.rotation = rotation
+        self.large = large
+        self.sweep = sweep
+        self.target_point = target_point
+
+        # SVG arc's rotation angle is expressed in degrees, whereas Transform.rotate
+        # uses radians
+        self.angle = radians(rotation)
+
+        # these derived attributes are computed by the _parametrize method
+        self.center_point = self.theta1 = self.theta2 = self.theta_arc = None
+
+    def _parametrize(self):
+        # convert from endopoint to center parametrization:
+        # https://www.w3.org/TR/SVG/implnote.html#ArcConversionEndpointToCenter
+
+        # If rx = 0 or ry = 0 then this arc is treated as a straight line segment (a
+        # "lineto") joining the endpoints.
+        # http://www.w3.org/TR/SVG/implnote.html#ArcOutOfRangeParameters
+        rx = fabs(self.rx)
+        ry = fabs(self.ry)
+        if not (rx and ry):
+            return False
+
+        # If the current point and target point for the arc are identical, it should
+        # be treated as a zero length path. This ensures continuity in animations.
+        if self.target_point == self.current_point:
+            return False
+
+        mid_point_distance = (self.current_point - self.target_point) * 0.5
+
+        point_transform = Identity.rotate(-self.angle)
+
+        transformed_mid_point = _map_point(point_transform, mid_point_distance)
+        square_rx = rx * rx
+        square_ry = ry * ry
+        square_x = transformed_mid_point.real * transformed_mid_point.real
+        square_y = transformed_mid_point.imag * transformed_mid_point.imag
+
+        # Check if the radii are big enough to draw the arc, scale radii if not.
+        # http://www.w3.org/TR/SVG/implnote.html#ArcCorrectionOutOfRangeRadii
+        radii_scale = square_x / square_rx + square_y / square_ry
+        if radii_scale > 1:
+            rx *= sqrt(radii_scale)
+            ry *= sqrt(radii_scale)
+            self.rx, self.ry = rx, ry
+
+        point_transform = Scale(1 / rx, 1 / ry).rotate(-self.angle)
+
+        point1 = _map_point(point_transform, self.current_point)
+        point2 = _map_point(point_transform, self.target_point)
+        delta = point2 - point1
+
+        d = delta.real * delta.real + delta.imag * delta.imag
+        scale_factor_squared = max(1 / d - 0.25, 0.0)
+
+        scale_factor = sqrt(scale_factor_squared)
+        if self.sweep == self.large:
+            scale_factor = -scale_factor
+
+        delta *= scale_factor
+        center_point = (point1 + point2) * 0.5
+        center_point += complex(-delta.imag, delta.real)
+        point1 -= center_point
+        point2 -= center_point
+
+        theta1 = atan2(point1.imag, point1.real)
+        theta2 = atan2(point2.imag, point2.real)
+
+        theta_arc = theta2 - theta1
+        if theta_arc < 0 and self.sweep:
+            theta_arc += TWO_PI
+        elif theta_arc > 0 and not self.sweep:
+            theta_arc -= TWO_PI
+
+        self.theta1 = theta1
+        self.theta2 = theta1 + theta_arc
+        self.theta_arc = theta_arc
+        self.center_point = center_point
+
+        return True
+
+    def _decompose_to_cubic_curves(self):
+        if self.center_point is None and not self._parametrize():
+            return
+
+        point_transform = Identity.rotate(self.angle).scale(self.rx, self.ry)
+
+        # Some results of atan2 on some platform implementations are not exact
+        # enough. So that we get more cubic curves than expected here. Adding 0.001f
+        # reduces the count of sgements to the correct count.
+        num_segments = int(ceil(fabs(self.theta_arc / (PI_OVER_TWO + 0.001))))
+        for i in range(num_segments):
+            start_theta = self.theta1 + i * self.theta_arc / num_segments
+            end_theta = self.theta1 + (i + 1) * self.theta_arc / num_segments
+
+            t = (4 / 3) * tan(0.25 * (end_theta - start_theta))
+            if not isfinite(t):
+                return
+
+            sin_start_theta = sin(start_theta)
+            cos_start_theta = cos(start_theta)
+            sin_end_theta = sin(end_theta)
+            cos_end_theta = cos(end_theta)
+
+            point1 = complex(
+                cos_start_theta - t * sin_start_theta,
+                sin_start_theta + t * cos_start_theta,
+            )
+            point1 += self.center_point
+            target_point = complex(cos_end_theta, sin_end_theta)
+            target_point += self.center_point
+            point2 = target_point
+            point2 += complex(t * sin_end_theta, -t * cos_end_theta)
+
+            point1 = _map_point(point_transform, point1)
+            point2 = _map_point(point_transform, point2)
+            target_point = _map_point(point_transform, target_point)
+
+            yield point1, point2, target_point
+
+    def draw(self, pen):
+        for point1, point2, target_point in self._decompose_to_cubic_curves():
+            pen.curveTo(
+                (point1.real, point1.imag),
+                (point2.real, point2.imag),
+                (target_point.real, target_point.imag),
+            )

.venv/lib/python3.12/site-packages/fontTools/svgLib/path/parser.py

@@ -0,0 +1,350 @@
+# SVG Path specification parser.
+# This is an adaptation from 'svg.path' by Lennart Regebro (@regebro),
+# modified so that the parser takes a FontTools Pen object instead of
+# returning a list of svg.path Path objects.
+# The original code can be found at:
+# https://github.com/regebro/svg.path/blob/4f9b6e3/src/svg/path/parser.py
+# Copyright (c) 2013-2014 Lennart Regebro
+# License: MIT
+
+from .arc import EllipticalArc
+import cmath
+import re
+
+COMMANDS = set("MmZzLlHhVvCcSsQqTtAa")
+ARC_COMMANDS = set("Aa")
+UPPERCASE = set("MZLHVCSQTA")
+
+COMMAND_RE = re.compile("([MmZzLlHhVvCcSsQqTtAa])")
+
+# https://www.w3.org/TR/css-syntax-3/#number-token-diagram
+#   but -6.e-5 will be tokenized as "-6" then "-5" and confuse parsing
+FLOAT_RE = re.compile(
+    r"[-+]?"  # optional sign
+    r"(?:"
+    r"(?:0|[1-9][0-9]*)(?:\.[0-9]+)?(?:[eE][-+]?[0-9]+)?"  # int/float
+    r"|"
+    r"(?:\.[0-9]+(?:[eE][-+]?[0-9]+)?)"  # float with leading dot (e.g. '.42')
+    r")"
+)
+BOOL_RE = re.compile("^[01]")
+SEPARATOR_RE = re.compile(f"[, \t]")
+
+
+def _tokenize_path(pathdef):
+    arc_cmd = None
+    for x in COMMAND_RE.split(pathdef):
+        if x in COMMANDS:
+            arc_cmd = x if x in ARC_COMMANDS else None
+            yield x
+            continue
+
+        if arc_cmd:
+            try:
+                yield from _tokenize_arc_arguments(x)
+            except ValueError as e:
+                raise ValueError(f"Invalid arc command: '{arc_cmd}{x}'") from e
+        else:
+            for token in FLOAT_RE.findall(x):
+                yield token
+
+
+ARC_ARGUMENT_TYPES = (
+    ("rx", FLOAT_RE),
+    ("ry", FLOAT_RE),
+    ("x-axis-rotation", FLOAT_RE),
+    ("large-arc-flag", BOOL_RE),
+    ("sweep-flag", BOOL_RE),
+    ("x", FLOAT_RE),
+    ("y", FLOAT_RE),
+)
+
+
+def _tokenize_arc_arguments(arcdef):
+    raw_args = [s for s in SEPARATOR_RE.split(arcdef) if s]
+    if not raw_args:
+        raise ValueError(f"Not enough arguments: '{arcdef}'")
+    raw_args.reverse()
+
+    i = 0
+    while raw_args:
+        arg = raw_args.pop()
+
+        name, pattern = ARC_ARGUMENT_TYPES[i]
+        match = pattern.search(arg)
+        if not match:
+            raise ValueError(f"Invalid argument for '{name}' parameter: {arg!r}")
+
+        j, k = match.span()
+        yield arg[j:k]
+        arg = arg[k:]
+
+        if arg:
+            raw_args.append(arg)
+
+        # wrap around every 7 consecutive arguments
+        if i == 6:
+            i = 0
+        else:
+            i += 1
+
+    if i != 0:
+        raise ValueError(f"Not enough arguments: '{arcdef}'")
+
+
+def parse_path(pathdef, pen, current_pos=(0, 0), arc_class=EllipticalArc):
+    """Parse SVG path definition (i.e. "d" attribute of <path> elements)
+    and call a 'pen' object's moveTo, lineTo, curveTo, qCurveTo and closePath
+    methods.
+
+    If 'current_pos' (2-float tuple) is provided, the initial moveTo will
+    be relative to that instead being absolute.
+
+    If the pen has an "arcTo" method, it is called with the original values
+    of the elliptical arc curve commands:
+
+    .. code-block::
+
+        pen.arcTo(rx, ry, rotation, arc_large, arc_sweep, (x, y))
+
+    Otherwise, the arcs are approximated by series of cubic Bezier segments
+    ("curveTo"), one every 90 degrees.
+    """
+    # In the SVG specs, initial movetos are absolute, even if
+    # specified as 'm'. This is the default behavior here as well.
+    # But if you pass in a current_pos variable, the initial moveto
+    # will be relative to that current_pos. This is useful.
+    current_pos = complex(*current_pos)
+
+    elements = list(_tokenize_path(pathdef))
+    # Reverse for easy use of .pop()
+    elements.reverse()
+
+    # A path data segment (if there is one) must begin with a moveto
+    # command (https://www.w3.org/TR/SVG11/paths.html#PathDataMovetoCommands);
+    # raise before any pen call instead of inventing a start point.
+    if elements and elements[-1] not in ("M", "m"):
+        raise ValueError("Path must start with a moveto command: %r" % pathdef)
+
+    # start_pos is the initial point of the current subpath; it is retained
+    # after a closepath so that a drawto command following Z can start a new
+    # subpath at that same point, while subpath_open tracks whether there is
+    # a subpath in progress that still needs closePath/endPath.
+    start_pos = None
+    subpath_open = False
+    command = None
+    last_control = None
+
+    have_arcTo = hasattr(pen, "arcTo")
+
+    while elements:
+        if elements[-1] in COMMANDS:
+            # New command.
+            last_command = command  # Used by S and T
+            command = elements.pop()
+            absolute = command in UPPERCASE
+            command = command.upper()
+        else:
+            # If this element starts with numbers, it is an implicit command
+            # and we don't change the command. Check that it's allowed:
+            if command is None:
+                raise ValueError(
+                    "Unallowed implicit command in %s, position %s"
+                    % (pathdef, len(pathdef.split()) - len(elements))
+                )
+            last_command = command  # Used by S and T
+
+        if command not in ("M", "Z") and not subpath_open and start_pos is not None:
+            # If a closepath is followed immediately by any other command,
+            # the next subpath starts at the same initial point as the
+            # current subpath:
+            # https://www.w3.org/TR/SVG11/paths.html#PathDataClosePathCommand
+            pen.moveTo((start_pos.real, start_pos.imag))
+            subpath_open = True
+
+        if command == "M":
+            # Moveto command.
+            x = elements.pop()
+            y = elements.pop()
+            pos = float(x) + float(y) * 1j
+            if absolute:
+                current_pos = pos
+            else:
+                current_pos += pos
+
+            # M is not preceded by Z; it's an open subpath
+            if subpath_open:
+                pen.endPath()
+
+            pen.moveTo((current_pos.real, current_pos.imag))
+
+            # when M is called, reset start_pos
+            # This behavior of Z is defined in svg spec:
+            # http://www.w3.org/TR/SVG/paths.html#PathDataClosePathCommand
+            start_pos = current_pos
+            subpath_open = True
+
+            # Implicit moveto commands are treated as lineto commands.
+            # So we set command to lineto here, in case there are
+            # further implicit commands after this moveto.
+            command = "L"
+
+        elif command == "Z":
+            # Close path
+            # A redundant Z with no open subpath (e.g. "M0,0 Z Z") is valid
+            # per the SVG path grammar and has no effect; ignore it instead
+            # of emitting a second closePath.
+            if subpath_open:
+                if not cmath.isclose(
+                    current_pos, start_pos, rel_tol=1e-15, abs_tol=1e-15
+                ):
+                    pen.lineTo((start_pos.real, start_pos.imag))
+                pen.closePath()
+                current_pos = start_pos
+                subpath_open = False
+            command = None  # You can't have implicit commands after closing.
+
+        elif command == "L":
+            x = elements.pop()
+            y = elements.pop()
+            pos = float(x) + float(y) * 1j
+            if not absolute:
+                pos += current_pos
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "H":
+            x = elements.pop()
+            pos = float(x) + current_pos.imag * 1j
+            if not absolute:
+                pos += current_pos.real
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "V":
+            y = elements.pop()
+            pos = current_pos.real + float(y) * 1j
+            if not absolute:
+                pos += current_pos.imag * 1j
+            pen.lineTo((pos.real, pos.imag))
+            current_pos = pos
+
+        elif command == "C":
+            control1 = float(elements.pop()) + float(elements.pop()) * 1j
+            control2 = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control1 += current_pos
+                control2 += current_pos
+                end += current_pos
+
+            pen.curveTo(
+                (control1.real, control1.imag),
+                (control2.real, control2.imag),
+                (end.real, end.imag),
+            )
+            current_pos = end
+            last_control = control2
+
+        elif command == "S":
+            # Smooth curve. First control point is the "reflection" of
+            # the second control point in the previous path.
+
+            # last_command is None right after a closepath (Z is not C/S)
+            if last_command not in ("C", "S"):
+                # If there is no previous command or if the previous command
+                # was not an C, c, S or s, assume the first control point is
+                # coincident with the current point.
+                control1 = current_pos
+            else:
+                # The first control point is assumed to be the reflection of
+                # the second control point on the previous command relative
+                # to the current point.
+                control1 = current_pos + current_pos - last_control
+
+            control2 = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control2 += current_pos
+                end += current_pos
+
+            pen.curveTo(
+                (control1.real, control1.imag),
+                (control2.real, control2.imag),
+                (end.real, end.imag),
+            )
+            current_pos = end
+            last_control = control2
+
+        elif command == "Q":
+            control = float(elements.pop()) + float(elements.pop()) * 1j
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                control += current_pos
+                end += current_pos
+
+            pen.qCurveTo((control.real, control.imag), (end.real, end.imag))
+            current_pos = end
+            last_control = control
+
+        elif command == "T":
+            # Smooth curve. Control point is the "reflection" of
+            # the second control point in the previous path.
+
+            # last_command is None right after a closepath (Z is not Q/T)
+            if last_command not in ("Q", "T"):
+                # If there is no previous command or if the previous command
+                # was not an Q, q, T or t, assume the first control point is
+                # coincident with the current point.
+                control = current_pos
+            else:
+                # The control point is assumed to be the reflection of
+                # the control point on the previous command relative
+                # to the current point.
+                control = current_pos + current_pos - last_control
+
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                end += current_pos
+
+            pen.qCurveTo((control.real, control.imag), (end.real, end.imag))
+            current_pos = end
+            last_control = control
+
+        elif command == "A":
+            rx = abs(float(elements.pop()))
+            ry = abs(float(elements.pop()))
+            rotation = float(elements.pop())
+            arc_large = bool(int(elements.pop()))
+            arc_sweep = bool(int(elements.pop()))
+            end = float(elements.pop()) + float(elements.pop()) * 1j
+
+            if not absolute:
+                end += current_pos
+
+            # if the pen supports arcs, pass the values unchanged, otherwise
+            # approximate the arc with a series of cubic bezier curves
+            if have_arcTo:
+                pen.arcTo(
+                    rx,
+                    ry,
+                    rotation,
+                    arc_large,
+                    arc_sweep,
+                    (end.real, end.imag),
+                )
+            else:
+                arc = arc_class(
+                    current_pos, rx, ry, rotation, arc_large, arc_sweep, end
+                )
+                arc.draw(pen)
+
+            current_pos = end
+
+    # no final Z command, it's an open path
+    if subpath_open:
+        pen.endPath()

.venv/lib/python3.12/site-packages/fontTools/svgLib/path/shapes.py

@@ -0,0 +1,185 @@
+import re
+
+
+def _prefer_non_zero(*args):
+    for arg in args:
+        if arg != 0:
+            return arg
+    return 0.0
+
+
+def _ntos(n):
+    # %f likes to add unnecessary 0's, %g isn't consistent about # decimals
+    return ("%.3f" % n).rstrip("0").rstrip(".")
+
+
+def _strip_xml_ns(tag):
+    # ElementTree API doesn't provide a way to ignore XML namespaces in tags
+    # so we here strip them ourselves: cf. https://bugs.python.org/issue18304
+    return tag.split("}", 1)[1] if "}" in tag else tag
+
+
+def _transform(raw_value):
+    # TODO assumes a 'matrix' transform.
+    # No other transform functions are supported at the moment.
+    # https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/transform
+    # start simple: if you aren't exactly matrix(...) then no love
+    match = re.match(r"matrix\((.*)\)", raw_value)
+    if not match:
+        raise NotImplementedError
+    matrix = tuple(float(p) for p in re.split(r"\s+|,", match.group(1)))
+    if len(matrix) != 6:
+        raise ValueError("wrong # of terms in %s" % raw_value)
+    return matrix
+
+
+class PathBuilder(object):
+    def __init__(self):
+        self.paths = []
+        self.transforms = []
+
+    def _start_path(self, initial_path=""):
+        self.paths.append(initial_path)
+        self.transforms.append(None)
+
+    def _end_path(self):
+        self._add("z")
+
+    def _add(self, path_snippet):
+        path = self.paths[-1]
+        if path:
+            path += " " + path_snippet
+        else:
+            path = path_snippet
+        self.paths[-1] = path
+
+    def _move(self, c, x, y):
+        self._add("%s%s,%s" % (c, _ntos(x), _ntos(y)))
+
+    def M(self, x, y):
+        self._move("M", x, y)
+
+    def m(self, x, y):
+        self._move("m", x, y)
+
+    def _arc(self, c, rx, ry, x, y, large_arc):
+        self._add(
+            "%s%s,%s 0 %d 1 %s,%s"
+            % (c, _ntos(rx), _ntos(ry), large_arc, _ntos(x), _ntos(y))
+        )
+
+    def A(self, rx, ry, x, y, large_arc=0):
+        self._arc("A", rx, ry, x, y, large_arc)
+
+    def a(self, rx, ry, x, y, large_arc=0):
+        self._arc("a", rx, ry, x, y, large_arc)
+
+    def _vhline(self, c, x):
+        self._add("%s%s" % (c, _ntos(x)))
+
+    def H(self, x):
+        self._vhline("H", x)
+
+    def h(self, x):
+        self._vhline("h", x)
+
+    def V(self, y):
+        self._vhline("V", y)
+
+    def v(self, y):
+        self._vhline("v", y)
+
+    def _line(self, c, x, y):
+        self._add("%s%s,%s" % (c, _ntos(x), _ntos(y)))
+
+    def L(self, x, y):
+        self._line("L", x, y)
+
+    def l(self, x, y):
+        self._line("l", x, y)
+
+    def _parse_line(self, line):
+        x1 = float(line.attrib.get("x1", 0))
+        y1 = float(line.attrib.get("y1", 0))
+        x2 = float(line.attrib.get("x2", 0))
+        y2 = float(line.attrib.get("y2", 0))
+
+        self._start_path()
+        self.M(x1, y1)
+        self.L(x2, y2)
+
+    def _parse_rect(self, rect):
+        x = float(rect.attrib.get("x", 0))
+        y = float(rect.attrib.get("y", 0))
+        w = float(rect.attrib.get("width"))
+        h = float(rect.attrib.get("height"))
+        rx = float(rect.attrib.get("rx", 0))
+        ry = float(rect.attrib.get("ry", 0))
+
+        rx = _prefer_non_zero(rx, ry)
+        ry = _prefer_non_zero(ry, rx)
+        # TODO there are more rules for adjusting rx, ry
+
+        self._start_path()
+        self.M(x + rx, y)
+        self.H(x + w - rx)
+        if rx > 0:
+            self.A(rx, ry, x + w, y + ry)
+        self.V(y + h - ry)
+        if rx > 0:
+            self.A(rx, ry, x + w - rx, y + h)
+        self.H(x + rx)
+        if rx > 0:
+            self.A(rx, ry, x, y + h - ry)
+        self.V(y + ry)
+        if rx > 0:
+            self.A(rx, ry, x + rx, y)
+        self._end_path()
+
+    def _parse_path(self, path):
+        if "d" in path.attrib:
+            self._start_path(initial_path=path.attrib["d"])
+
+    def _parse_polygon(self, poly):
+        if "points" in poly.attrib:
+            self._start_path("M" + poly.attrib["points"])
+            self._end_path()
+
+    def _parse_polyline(self, poly):
+        if "points" in poly.attrib:
+            self._start_path("M" + poly.attrib["points"])
+
+    def _parse_circle(self, circle):
+        cx = float(circle.attrib.get("cx", 0))
+        cy = float(circle.attrib.get("cy", 0))
+        r = float(circle.attrib.get("r"))
+
+        # arc doesn't seem to like being a complete shape, draw two halves
+        self._start_path()
+        self.M(cx - r, cy)
+        self.A(r, r, cx + r, cy, large_arc=1)
+        self.A(r, r, cx - r, cy, large_arc=1)
+
+    def _parse_ellipse(self, ellipse):
+        cx = float(ellipse.attrib.get("cx", 0))
+        cy = float(ellipse.attrib.get("cy", 0))
+        rx = float(ellipse.attrib.get("rx"))
+        ry = float(ellipse.attrib.get("ry"))
+
+        # arc doesn't seem to like being a complete shape, draw two halves
+        self._start_path()
+        self.M(cx - rx, cy)
+        self.A(rx, ry, cx + rx, cy, large_arc=1)
+        self.A(rx, ry, cx - rx, cy, large_arc=1)
+
+    def add_path_from_element(self, el):
+        if not isinstance(el.tag, str):
+            return False
+        tag = _strip_xml_ns(el.tag)
+        parse_fn = getattr(self, "_parse_%s" % tag.lower(), None)
+        if not callable(parse_fn):
+            return False
+        parse_fn(el)
+        if "transform" in el.attrib:
+            self.transforms[-1] = _transform(el.attrib["transform"])
+        return True

.venv/lib/python3.12/site-packages/fontTools/t1Lib/__init__.py

@@ -0,0 +1,648 @@
+"""fontTools.t1Lib.py -- Tools for PostScript Type 1 fonts.
+
+Functions for reading and writing raw Type 1 data:
+
+read(path)
+        reads any Type 1 font file, returns the raw data and a type indicator:
+        'LWFN', 'PFB' or 'OTHER', depending on the format of the file pointed
+        to by 'path'.
+        Raises an error when the file does not contain valid Type 1 data.
+
+write(path, data, kind='OTHER', dohex=False)
+        writes raw Type 1 data to the file pointed to by 'path'.
+        'kind' can be one of 'LWFN', 'PFB' or 'OTHER'; it defaults to 'OTHER'.
+        'dohex' is a flag which determines whether the eexec encrypted
+        part should be written as hexadecimal or binary, but only if kind
+        is 'OTHER'.
+"""
+
+import fontTools
+from fontTools.misc import eexec
+from fontTools.misc.macCreatorType import getMacCreatorAndType
+from fontTools.misc.textTools import bytechr, byteord, bytesjoin, tobytes
+from fontTools.misc.psOperators import (
+    _type1_pre_eexec_order,
+    _type1_fontinfo_order,
+    _type1_post_eexec_order,
+)
+from fontTools.encodings.StandardEncoding import StandardEncoding
+import os
+import re
+
+__author__ = "jvr"
+__version__ = "1.0b3"
+DEBUG = 0
+
+
+try:
+    try:
+        from Carbon import Res
+    except ImportError:
+        import Res  # MacPython < 2.2
+except ImportError:
+    haveMacSupport = 0
+else:
+    haveMacSupport = 1
+
+
+class T1Error(Exception):
+    pass
+
+
+class T1Font(object):
+    """Type 1 font class.
+
+    Uses a minimal interpeter that supports just about enough PS to parse
+    Type 1 fonts.
+    """
+
+    def __init__(self, path, encoding="ascii", kind=None):
+        if kind is None:
+            self.data, _ = read(path)
+        elif kind == "LWFN":
+            self.data = readLWFN(path)
+        elif kind == "PFB":
+            self.data = readPFB(path)
+        elif kind == "OTHER":
+            self.data = readOther(path)
+        else:
+            raise ValueError(kind)
+        self.encoding = encoding
+
+    def saveAs(self, path, type, dohex=False):
+        write(path, self.getData(), type, dohex)
+
+    def getData(self):
+        if not hasattr(self, "data"):
+            self.data = self.createData()
+        return self.data
+
+    def getGlyphSet(self):
+        """Return a generic GlyphSet, which is a dict-like object
+        mapping glyph names to glyph objects. The returned glyph objects
+        have a .draw() method that supports the Pen protocol, and will
+        have an attribute named 'width', but only *after* the .draw() method
+        has been called.
+
+        In the case of Type 1, the GlyphSet is simply the CharStrings dict.
+        """
+        return self["CharStrings"]
+
+    def __getitem__(self, key):
+        if not hasattr(self, "font"):
+            self.parse()
+        return self.font[key]
+
+    def parse(self):
+        from fontTools.misc import psLib
+        from fontTools.misc import psCharStrings
+
+        self.font = psLib.suckfont(self.data, self.encoding)
+        charStrings = self.font["CharStrings"]
+        lenIV = self.font["Private"].get("lenIV", 4)
+        assert lenIV >= 0
+        subrs = self.font["Private"]["Subrs"]
+        for glyphName, charString in charStrings.items():
+            charString, R = eexec.decrypt(charString, 4330)
+            charStrings[glyphName] = psCharStrings.T1CharString(
+                charString[lenIV:], subrs=subrs
+            )
+        for i in range(len(subrs)):
+            charString, R = eexec.decrypt(subrs[i], 4330)
+            subrs[i] = psCharStrings.T1CharString(charString[lenIV:], subrs=subrs)
+        del self.data
+
+    def createData(self):
+        sf = self.font
+
+        eexec_began = False
+        eexec_dict = {}
+        lines = []
+        lines.extend(
+            [
+                self._tobytes(f"%!FontType1-1.1: {sf['FontName']}"),
+                self._tobytes(f"%t1Font: ({fontTools.version})"),
+                self._tobytes(f"%%BeginResource: font {sf['FontName']}"),
+            ]
+        )
+        # follow t1write.c:writeRegNameKeyedFont
+        size = 3  # Headroom for new key addition
+        size += 1  # FontMatrix is always counted
+        size += 1 + 1  # Private, CharStings
+        for key in font_dictionary_keys:
+            size += int(key in sf)
+        lines.append(self._tobytes(f"{size} dict dup begin"))
+
+        for key, value in sf.items():
+            if eexec_began:
+                eexec_dict[key] = value
+                continue
+
+            if key == "FontInfo":
+                fi = sf["FontInfo"]
+                # follow t1write.c:writeFontInfoDict
+                size = 3  # Headroom for new key addition
+                for subkey in FontInfo_dictionary_keys:
+                    size += int(subkey in fi)
+                lines.append(self._tobytes(f"/FontInfo {size} dict dup begin"))
+
+                for subkey, subvalue in fi.items():
+                    lines.extend(self._make_lines(subkey, subvalue))
+                lines.append(b"end def")
+            elif key in _type1_post_eexec_order:  # usually 'Private'
+                eexec_dict[key] = value
+                eexec_began = True
+            else:
+                lines.extend(self._make_lines(key, value))
+        lines.append(b"end")
+        eexec_portion = self.encode_eexec(eexec_dict)
+        lines.append(bytesjoin([b"currentfile eexec ", eexec_portion]))
+
+        for _ in range(8):
+            lines.append(self._tobytes("0" * 64))
+        lines.extend([b"cleartomark", b"%%EndResource", b"%%EOF"])
+
+        data = bytesjoin(lines, "\n")
+        return data
+
+    def encode_eexec(self, eexec_dict):
+        lines = []
+
+        # '-|', '|-', '|'
+        RD_key, ND_key, NP_key = None, None, None
+        lenIV = 4
+        subrs = std_subrs
+
+        # Ensure we look at Private first, because we need RD_key, ND_key, NP_key and lenIV
+        sortedItems = sorted(eexec_dict.items(), key=lambda item: item[0] != "Private")
+
+        for key, value in sortedItems:
+            if key == "Private":
+                pr = eexec_dict["Private"]
+                # follow t1write.c:writePrivateDict
+                size = 3  # for RD, ND, NP
+                for subkey in Private_dictionary_keys:
+                    size += int(subkey in pr)
+                lines.append(b"dup /Private")
+                lines.append(self._tobytes(f"{size} dict dup begin"))
+                for subkey, subvalue in pr.items():
+                    if not RD_key and subvalue == RD_value:
+                        RD_key = subkey
+                    elif not ND_key and subvalue in ND_values:
+                        ND_key = subkey
+                    elif not NP_key and subvalue in PD_values:
+                        NP_key = subkey
+
+                    if subkey == "lenIV":
+                        lenIV = subvalue
+
+                    if subkey == "OtherSubrs":
+                        # XXX: assert that no flex hint is used
+                        lines.append(self._tobytes(hintothers))
+                    elif subkey == "Subrs":
+                        for subr_bin in subvalue:
+                            subr_bin.compile()
+                        subrs = [subr_bin.bytecode for subr_bin in subvalue]
+                        lines.append(f"/Subrs {len(subrs)} array".encode("ascii"))
+                        for i, subr_bin in enumerate(subrs):
+                            encrypted_subr, R = eexec.encrypt(
+                                bytesjoin([char_IV[:lenIV], subr_bin]), 4330
+                            )
+                            lines.append(
+                                bytesjoin(
+                                    [
+                                        self._tobytes(
+                                            f"dup {i} {len(encrypted_subr)} {RD_key} "
+                                        ),
+                                        encrypted_subr,
+                                        self._tobytes(f" {NP_key}"),
+                                    ]
+                                )
+                            )
+                        lines.append(b"def")
+
+                        lines.append(b"put")
+                    else:
+                        lines.extend(self._make_lines(subkey, subvalue))
+            elif key == "CharStrings":
+                lines.append(b"dup /CharStrings")
+                lines.append(
+                    self._tobytes(f"{len(eexec_dict['CharStrings'])} dict dup begin")
+                )
+                for glyph_name, char_bin in eexec_dict["CharStrings"].items():
+                    char_bin.compile()
+                    encrypted_char, R = eexec.encrypt(
+                        bytesjoin([char_IV[:lenIV], char_bin.bytecode]), 4330
+                    )
+                    lines.append(
+                        bytesjoin(
+                            [
+                                self._tobytes(
+                                    f"/{glyph_name} {len(encrypted_char)} {RD_key} "
+                                ),
+                                encrypted_char,
+                                self._tobytes(f" {ND_key}"),
+                            ]
+                        )
+                    )
+                lines.append(b"end put")
+            else:
+                lines.extend(self._make_lines(key, value))
+
+        lines.extend(
+            [
+                b"end",
+                b"dup /FontName get exch definefont pop",
+                b"mark",
+                b"currentfile closefile\n",
+            ]
+        )
+
+        eexec_portion = bytesjoin(lines, "\n")
+        encrypted_eexec, R = eexec.encrypt(bytesjoin([eexec_IV, eexec_portion]), 55665)
+
+        return encrypted_eexec
+
+    def _make_lines(self, key, value):
+        if key == "FontName":
+            return [self._tobytes(f"/{key} /{value} def")]
+        if key in ["isFixedPitch", "ForceBold", "RndStemUp"]:
+            return [self._tobytes(f"/{key} {'true' if value else 'false'} def")]
+        elif key == "Encoding":
+            if value == StandardEncoding:
+                return [self._tobytes(f"/{key} StandardEncoding def")]
+            else:
+                # follow fontTools.misc.psOperators._type1_Encoding_repr
+                lines = []
+                lines.append(b"/Encoding 256 array")
+                lines.append(b"0 1 255 {1 index exch /.notdef put} for")
+                for i in range(256):
+                    name = value[i]
+                    if name != ".notdef":
+                        lines.append(self._tobytes(f"dup {i} /{name} put"))
+                lines.append(b"def")
+                return lines
+        if isinstance(value, str):
+            return [self._tobytes(f"/{key} ({value}) def")]
+        elif isinstance(value, bool):
+            return [self._tobytes(f"/{key} {'true' if value else 'false'} def")]
+        elif isinstance(value, list):
+            return [self._tobytes(f"/{key} [{' '.join(str(v) for v in value)}] def")]
+        elif isinstance(value, tuple):
+            return [self._tobytes(f"/{key} {{{' '.join(str(v) for v in value)}}} def")]
+        else:
+            return [self._tobytes(f"/{key} {value} def")]
+
+    def _tobytes(self, s, errors="strict"):
+        return tobytes(s, self.encoding, errors)
+
+
+# low level T1 data read and write functions
+
+
+def read(path, onlyHeader=False):
+    """reads any Type 1 font file, returns raw data"""
+    _, ext = os.path.splitext(path)
+    ext = ext.lower()
+    creator, typ = getMacCreatorAndType(path)
+    if typ == "LWFN":
+        return readLWFN(path, onlyHeader), "LWFN"
+    if ext == ".pfb":
+        return readPFB(path, onlyHeader), "PFB"
+    else:
+        return readOther(path), "OTHER"
+
+
+def write(path, data, kind="OTHER", dohex=False):
+    assertType1(data)
+    kind = kind.upper()
+    try:
+        os.remove(path)
+    except os.error:
+        pass
+    err = 1
+    try:
+        if kind == "LWFN":
+            writeLWFN(path, data)
+        elif kind == "PFB":
+            writePFB(path, data)
+        else:
+            writeOther(path, data, dohex)
+        err = 0
+    finally:
+        if err and not DEBUG:
+            try:
+                os.remove(path)
+            except os.error:
+                pass
+
+
+# -- internal --
+
+LWFNCHUNKSIZE = 2000
+HEXLINELENGTH = 80
+
+
+def readLWFN(path, onlyHeader=False):
+    """reads an LWFN font file, returns raw data"""
+    from fontTools.misc.macRes import ResourceReader
+
+    reader = ResourceReader(path)
+    try:
+        data = []
+        for res in reader.get("POST", []):
+            code = byteord(res.data[0])
+            if byteord(res.data[1]) != 0:
+                raise T1Error("corrupt LWFN file")
+            if code in [1, 2]:
+                if onlyHeader and code == 2:
+                    break
+                data.append(res.data[2:])
+            elif code in [3, 5]:
+                break
+            elif code == 4:
+                with open(path, "rb") as f:
+                    data.append(f.read())
+            elif code == 0:
+                pass  # comment, ignore
+            else:
+                raise T1Error("bad chunk code: " + repr(code))
+    finally:
+        reader.close()
+    data = bytesjoin(data)
+    assertType1(data)
+    return data
+
+
+def readPFB(path, onlyHeader=False):
+    """reads a PFB font file, returns raw data"""
+    data = []
+    with open(path, "rb") as f:
+        while True:
+            if f.read(1) != bytechr(128):
+                raise T1Error("corrupt PFB file")
+            code = byteord(f.read(1))
+            if code in [1, 2]:
+                chunklen = stringToLong(f.read(4))
+                chunk = f.read(chunklen)
+                assert len(chunk) == chunklen
+                data.append(chunk)
+            elif code == 3:
+                break
+            else:
+                raise T1Error("bad chunk code: " + repr(code))
+            if onlyHeader:
+                break
+    data = bytesjoin(data)
+    assertType1(data)
+    return data
+
+
+def readOther(path):
+    """reads any (font) file, returns raw data"""
+    with open(path, "rb") as f:
+        data = f.read()
+    assertType1(data)
+    chunks = findEncryptedChunks(data)
+    data = []
+    for isEncrypted, chunk in chunks:
+        if isEncrypted and isHex(chunk[:4]):
+            data.append(deHexString(chunk))
+        else:
+            data.append(chunk)
+    return bytesjoin(data)
+
+
+# file writing tools
+
+
+def writeLWFN(path, data):
+    # Res.FSpCreateResFile was deprecated in OS X 10.5
+    Res.FSpCreateResFile(path, "just", "LWFN", 0)
+    resRef = Res.FSOpenResFile(path, 2)  # write-only
+    try:
+        Res.UseResFile(resRef)
+        resID = 501
+        chunks = findEncryptedChunks(data)
+        for isEncrypted, chunk in chunks:
+            if isEncrypted:
+                code = 2
+            else:
+                code = 1
+            while chunk:
+                res = Res.Resource(bytechr(code) + "\0" + chunk[: LWFNCHUNKSIZE - 2])
+                res.AddResource("POST", resID, "")
+                chunk = chunk[LWFNCHUNKSIZE - 2 :]
+                resID = resID + 1
+        res = Res.Resource(bytechr(5) + "\0")
+        res.AddResource("POST", resID, "")
+    finally:
+        Res.CloseResFile(resRef)
+
+
+def writePFB(path, data):
+    chunks = findEncryptedChunks(data)
+    with open(path, "wb") as f:
+        for isEncrypted, chunk in chunks:
+            if isEncrypted:
+                code = 2
+            else:
+                code = 1
+            f.write(bytechr(128) + bytechr(code))
+            f.write(longToString(len(chunk)))
+            f.write(chunk)
+        f.write(bytechr(128) + bytechr(3))
+
+
+def writeOther(path, data, dohex=False):
+    chunks = findEncryptedChunks(data)
+    with open(path, "wb") as f:
+        hexlinelen = HEXLINELENGTH // 2
+        for isEncrypted, chunk in chunks:
+            if isEncrypted:
+                code = 2
+            else:
+                code = 1
+            if code == 2 and dohex:
+                while chunk:
+                    f.write(eexec.hexString(chunk[:hexlinelen]))
+                    f.write(b"\r")
+                    chunk = chunk[hexlinelen:]
+            else:
+                f.write(chunk)
+
+
+# decryption tools
+
+EEXECBEGIN = b"currentfile eexec"
+# The spec allows for 512 ASCII zeros interrupted by arbitrary whitespace to
+# follow eexec
+EEXECEND = re.compile(b"(0[ \t\r\n]*){512}", flags=re.M)
+EEXECINTERNALEND = b"currentfile closefile"
+EEXECBEGINMARKER = b"%-- eexec start\r"
+EEXECENDMARKER = b"%-- eexec end\r"
+
+_ishexRE = re.compile(b"[0-9A-Fa-f]*$")
+
+
+def isHex(text):
+    return _ishexRE.match(text) is not None
+
+
+def decryptType1(data):
+    chunks = findEncryptedChunks(data)
+    data = []
+    for isEncrypted, chunk in chunks:
+        if isEncrypted:
+            if isHex(chunk[:4]):
+                chunk = deHexString(chunk)
+            decrypted, R = eexec.decrypt(chunk, 55665)
+            decrypted = decrypted[4:]
+            if (
+                decrypted[-len(EEXECINTERNALEND) - 1 : -1] != EEXECINTERNALEND
+                and decrypted[-len(EEXECINTERNALEND) - 2 : -2] != EEXECINTERNALEND
+            ):
+                raise T1Error("invalid end of eexec part")
+            decrypted = decrypted[: -len(EEXECINTERNALEND) - 2] + b"\r"
+            data.append(EEXECBEGINMARKER + decrypted + EEXECENDMARKER)
+        else:
+            if chunk[-len(EEXECBEGIN) - 1 : -1] == EEXECBEGIN:
+                data.append(chunk[: -len(EEXECBEGIN) - 1])
+            else:
+                data.append(chunk)
+    return bytesjoin(data)
+
+
+def findEncryptedChunks(data):
+    chunks = []
+    while True:
+        eBegin = data.find(EEXECBEGIN)
+        if eBegin < 0:
+            break
+        eBegin = eBegin + len(EEXECBEGIN) + 1
+        endMatch = EEXECEND.search(data, eBegin)
+        if endMatch is None:
+            raise T1Error("can't find end of eexec part")
+        eEnd = endMatch.start()
+        cypherText = data[eBegin : eEnd + 2]
+        if isHex(cypherText[:4]):
+            cypherText = deHexString(cypherText)
+        plainText, R = eexec.decrypt(cypherText, 55665)
+        eEndLocal = plainText.find(EEXECINTERNALEND)
+        if eEndLocal < 0:
+            raise T1Error("can't find end of eexec part")
+        chunks.append((0, data[:eBegin]))
+        chunks.append((1, cypherText[: eEndLocal + len(EEXECINTERNALEND) + 1]))
+        data = data[eEnd:]
+    chunks.append((0, data))
+    return chunks
+
+
+def deHexString(hexstring):
+    return eexec.deHexString(bytesjoin(hexstring.split()))
+
+
+# Type 1 assertion
+
+_fontType1RE = re.compile(rb"/FontType\s+1\s+def")
+
+
+def assertType1(data):
+    for head in [b"%!PS-AdobeFont", b"%!FontType1"]:
+        if data[: len(head)] == head:
+            break
+    else:
+        raise T1Error("not a PostScript font")
+    if not _fontType1RE.search(data):
+        raise T1Error("not a Type 1 font")
+    if data.find(b"currentfile eexec") < 0:
+        raise T1Error("not an encrypted Type 1 font")
+    # XXX what else?
+    return data
+
+
+# pfb helpers
+
+
+def longToString(long):
+    s = b""
+    for i in range(4):
+        s += bytechr((long & (0xFF << (i * 8))) >> i * 8)
+    return s
+
+
+def stringToLong(s):
+    if len(s) != 4:
+        raise ValueError("string must be 4 bytes long")
+    l = 0
+    for i in range(4):
+        l += byteord(s[i]) << (i * 8)
+    return l
+
+
+# PS stream helpers
+
+font_dictionary_keys = list(_type1_pre_eexec_order)
+# t1write.c:writeRegNameKeyedFont
+# always counts following keys
+font_dictionary_keys.remove("FontMatrix")
+
+FontInfo_dictionary_keys = list(_type1_fontinfo_order)
+# extend because AFDKO tx may use following keys
+FontInfo_dictionary_keys.extend(
+    [
+        "FSType",
+        "Copyright",
+    ]
+)
+
+Private_dictionary_keys = [
+    # We don't know what names will be actually used.
+    # "RD",
+    # "ND",
+    # "NP",
+    "Subrs",
+    "OtherSubrs",
+    "UniqueID",
+    "BlueValues",
+    "OtherBlues",
+    "FamilyBlues",
+    "FamilyOtherBlues",
+    "BlueScale",
+    "BlueShift",
+    "BlueFuzz",
+    "StdHW",
+    "StdVW",
+    "StemSnapH",
+    "StemSnapV",
+    "ForceBold",
+    "LanguageGroup",
+    "password",
+    "lenIV",
+    "MinFeature",
+    "RndStemUp",
+]
+
+# t1write_hintothers.h
+hintothers = """/OtherSubrs[{}{}{}{systemdict/internaldict known not{pop 3}{1183615869
+systemdict/internaldict get exec dup/startlock known{/startlock get exec}{dup
+/strtlck known{/strtlck get exec}{pop 3}ifelse}ifelse}ifelse}executeonly]def"""
+# t1write.c:saveStdSubrs
+std_subrs = [
+    # 3 0 callother pop pop setcurrentpoint return
+    b"\x8e\x8b\x0c\x10\x0c\x11\x0c\x11\x0c\x21\x0b",
+    # 0 1 callother return
+    b"\x8b\x8c\x0c\x10\x0b",
+    # 0 2 callother return
+    b"\x8b\x8d\x0c\x10\x0b",
+    # return
+    b"\x0b",
+    # 3 1 3 callother pop callsubr return
+    b"\x8e\x8c\x8e\x0c\x10\x0c\x11\x0a\x0b",
+]
+# follow t1write.c:writeRegNameKeyedFont
+eexec_IV = b"cccc"
+char_IV = b"\x0c\x0c\x0c\x0c"
+RD_value = ("string", "currentfile", "exch", "readstring", "pop")
+ND_values = [("def",), ("noaccess", "def")]
+PD_values = [("put",), ("noaccess", "put")]

.venv/lib/python3.12/site-packages/fontTools/tfmLib.py

@@ -0,0 +1,460 @@
+"""Module for reading TFM (TeX Font Metrics) files.
+
+The TFM format is described in the TFtoPL WEB source code, whose typeset form
+can be found on `CTAN <http://mirrors.ctan.org/info/knuth-pdf/texware/tftopl.pdf>`_.
+
+        >>> from fontTools.tfmLib import TFM
+        >>> tfm = TFM("Tests/tfmLib/data/cmr10.tfm")
+        >>>
+        >>> # Accessing an attribute gets you metadata.
+        >>> tfm.checksum
+        1274110073
+        >>> tfm.designsize
+        10.0
+        >>> tfm.codingscheme
+        'TeX text'
+        >>> tfm.family
+        'CMR'
+        >>> tfm.seven_bit_safe_flag
+        False
+        >>> tfm.face
+        234
+        >>> tfm.extraheader
+        {}
+        >>> tfm.fontdimens
+        {'SLANT': 0.0, 'SPACE': 0.33333396911621094, 'STRETCH': 0.16666698455810547, 'SHRINK': 0.11111164093017578, 'XHEIGHT': 0.4305553436279297, 'QUAD': 1.0000028610229492, 'EXTRASPACE': 0.11111164093017578}
+        >>> # Accessing a character gets you its metrics.
+        >>> # “width” is always available, other metrics are available only when
+        >>> # applicable. All values are relative to “designsize”.
+        >>> tfm.chars[ord("g")]
+        {'width': 0.5000019073486328, 'height': 0.4305553436279297, 'depth': 0.1944446563720703, 'italic': 0.013888359069824219}
+        >>> # Kerning and ligature can be accessed as well.
+        >>> tfm.kerning[ord("c")]
+        {104: -0.02777862548828125, 107: -0.02777862548828125}
+        >>> tfm.ligatures[ord("f")]
+        {105: ('LIG', 12), 102: ('LIG', 11), 108: ('LIG', 13)}
+"""
+
+from types import SimpleNamespace
+
+from fontTools.misc.sstruct import calcsize, unpack, unpack2
+
+SIZES_FORMAT = """
+    >
+    lf: h    # length of the entire file, in words
+    lh: h    # length of the header data, in words
+    bc: h    # smallest character code in the font
+    ec: h    # largest character code in the font
+    nw: h    # number of words in the width table
+    nh: h    # number of words in the height table
+    nd: h    # number of words in the depth table
+    ni: h    # number of words in the italic correction table
+    nl: h    # number of words in the ligature/kern table
+    nk: h    # number of words in the kern table
+    ne: h    # number of words in the extensible character table
+    np: h    # number of font parameter words
+"""
+
+SIZES_SIZE = calcsize(SIZES_FORMAT)
+
+FIXED_FORMAT = "12.20F"
+
+HEADER_FORMAT1 = f"""
+    >
+    checksum:            L
+    designsize:          {FIXED_FORMAT}
+"""
+
+HEADER_FORMAT2 = f"""
+    {HEADER_FORMAT1}
+    codingscheme:        40p
+"""
+
+HEADER_FORMAT3 = f"""
+    {HEADER_FORMAT2}
+    family:              20p
+"""
+
+HEADER_FORMAT4 = f"""
+    {HEADER_FORMAT3}
+    seven_bit_safe_flag: ?
+    ignored:             x
+    ignored:             x
+    face:                B
+"""
+
+HEADER_SIZE1 = calcsize(HEADER_FORMAT1)
+HEADER_SIZE2 = calcsize(HEADER_FORMAT2)
+HEADER_SIZE3 = calcsize(HEADER_FORMAT3)
+HEADER_SIZE4 = calcsize(HEADER_FORMAT4)
+
+LIG_KERN_COMMAND = """
+    >
+    skip_byte: B
+    next_char: B
+    op_byte: B
+    remainder: B
+"""
+
+BASE_PARAMS = [
+    "SLANT",
+    "SPACE",
+    "STRETCH",
+    "SHRINK",
+    "XHEIGHT",
+    "QUAD",
+    "EXTRASPACE",
+]
+
+MATHSY_PARAMS = [
+    "NUM1",
+    "NUM2",
+    "NUM3",
+    "DENOM1",
+    "DENOM2",
+    "SUP1",
+    "SUP2",
+    "SUP3",
+    "SUB1",
+    "SUB2",
+    "SUPDROP",
+    "SUBDROP",
+    "DELIM1",
+    "DELIM2",
+    "AXISHEIGHT",
+]
+
+MATHEX_PARAMS = [
+    "DEFAULTRULETHICKNESS",
+    "BIGOPSPACING1",
+    "BIGOPSPACING2",
+    "BIGOPSPACING3",
+    "BIGOPSPACING4",
+    "BIGOPSPACING5",
+]
+
+VANILLA = 0
+MATHSY = 1
+MATHEX = 2
+
+UNREACHABLE = 0
+PASSTHROUGH = 1
+ACCESSABLE = 2
+
+NO_TAG = 0
+LIG_TAG = 1
+LIST_TAG = 2
+EXT_TAG = 3
+
+STOP_FLAG = 128
+KERN_FLAG = 128
+
+
+class TFMException(Exception):
+    def __init__(self, message):
+        super().__init__(message)
+
+
+class TFM:
+    def __init__(self, file):
+        self._read(file)
+
+    def __repr__(self):
+        return (
+            f"<TFM"
+            f" for {self.family}"
+            f" in {self.codingscheme}"
+            f" at {self.designsize:g}pt>"
+        )
+
+    def _read(self, file):
+        if hasattr(file, "read"):
+            data = file.read()
+        else:
+            with open(file, "rb") as fp:
+                data = fp.read()
+
+        self._data = data
+
+        if len(data) < SIZES_SIZE:
+            raise TFMException("Too short input file")
+
+        sizes = SimpleNamespace()
+        unpack2(SIZES_FORMAT, data, sizes)
+
+        # Do some file structure sanity checks.
+        # TeX and TFtoPL do additional functional checks and might even correct
+        # “errors” in the input file, but we instead try to output the file as
+        # it is as long as it is parsable, even if the data make no sense.
+
+        if sizes.lf < 0:
+            raise TFMException("The file claims to have negative or zero length!")
+
+        if len(data) < sizes.lf * 4:
+            raise TFMException("The file has fewer bytes than it claims!")
+
+        for name, length in vars(sizes).items():
+            if length < 0:
+                raise TFMException("The subfile size: '{name}' is negative!")
+
+        if sizes.lh < 2:
+            raise TFMException(f"The header length is only {sizes.lh}!")
+
+        if sizes.bc > sizes.ec + 1 or sizes.ec > 255:
+            raise TFMException(
+                f"The character code range {sizes.bc}..{sizes.ec} is illegal!"
+            )
+
+        if sizes.nw == 0 or sizes.nh == 0 or sizes.nd == 0 or sizes.ni == 0:
+            raise TFMException("Incomplete subfiles for character dimensions!")
+
+        if sizes.ne > 256:
+            raise TFMException(f"There are {ne} extensible recipes!")
+
+        if sizes.lf != (
+            6
+            + sizes.lh
+            + (sizes.ec - sizes.bc + 1)
+            + sizes.nw
+            + sizes.nh
+            + sizes.nd
+            + sizes.ni
+            + sizes.nl
+            + sizes.nk
+            + sizes.ne
+            + sizes.np
+        ):
+            raise TFMException("Subfile sizes don’t add up to the stated total")
+
+        # Subfile offsets, used in the helper function below. These all are
+        # 32-bit word offsets not 8-bit byte offsets.
+        char_base = 6 + sizes.lh - sizes.bc
+        width_base = char_base + sizes.ec + 1
+        height_base = width_base + sizes.nw
+        depth_base = height_base + sizes.nh
+        italic_base = depth_base + sizes.nd
+        lig_kern_base = italic_base + sizes.ni
+        kern_base = lig_kern_base + sizes.nl
+        exten_base = kern_base + sizes.nk
+        param_base = exten_base + sizes.ne
+
+        # Helper functions for accessing individual data. If this looks
+        # nonidiomatic Python, I blame the effect of reading the literate WEB
+        # documentation of TFtoPL.
+        def char_info(c):
+            return 4 * (char_base + c)
+
+        def width_index(c):
+            return data[char_info(c)]
+
+        def noneexistent(c):
+            return c < sizes.bc or c > sizes.ec or width_index(c) == 0
+
+        def height_index(c):
+            return data[char_info(c) + 1] // 16
+
+        def depth_index(c):
+            return data[char_info(c) + 1] % 16
+
+        def italic_index(c):
+            return data[char_info(c) + 2] // 4
+
+        def tag(c):
+            return data[char_info(c) + 2] % 4
+
+        def remainder(c):
+            return data[char_info(c) + 3]
+
+        def width(c):
+            r = 4 * (width_base + width_index(c))
+            return read_fixed(r, "v")["v"]
+
+        def height(c):
+            r = 4 * (height_base + height_index(c))
+            return read_fixed(r, "v")["v"]
+
+        def depth(c):
+            r = 4 * (depth_base + depth_index(c))
+            return read_fixed(r, "v")["v"]
+
+        def italic(c):
+            r = 4 * (italic_base + italic_index(c))
+            return read_fixed(r, "v")["v"]
+
+        def exten(c):
+            return 4 * (exten_base + remainder(c))
+
+        def lig_step(i):
+            return 4 * (lig_kern_base + i)
+
+        def lig_kern_command(i):
+            command = SimpleNamespace()
+            unpack2(LIG_KERN_COMMAND, data[i:], command)
+            return command
+
+        def kern(i):
+            r = 4 * (kern_base + i)
+            return read_fixed(r, "v")["v"]
+
+        def param(i):
+            return 4 * (param_base + i)
+
+        def read_fixed(index, key, obj=None):
+            ret = unpack2(f">;{key}:{FIXED_FORMAT}", data[index:], obj)
+            return ret[0]
+
+        # Set all attributes to empty values regardless of the header size.
+        unpack(HEADER_FORMAT4, [0] * HEADER_SIZE4, self)
+
+        offset = 24
+        length = sizes.lh * 4
+        self.extraheader = {}
+        if length >= HEADER_SIZE4:
+            rest = unpack2(HEADER_FORMAT4, data[offset:], self)[1]
+            if self.face < 18:
+                s = self.face % 2
+                b = self.face // 2
+                self.face = "MBL"[b % 3] + "RI"[s] + "RCE"[b // 3]
+            for i in range(sizes.lh - HEADER_SIZE4 // 4):
+                rest = unpack2(f">;HEADER{i + 18}:l", rest, self.extraheader)[1]
+        elif length >= HEADER_SIZE3:
+            unpack2(HEADER_FORMAT3, data[offset:], self)
+        elif length >= HEADER_SIZE2:
+            unpack2(HEADER_FORMAT2, data[offset:], self)
+        elif length >= HEADER_SIZE1:
+            unpack2(HEADER_FORMAT1, data[offset:], self)
+
+        self.fonttype = VANILLA
+        scheme = self.codingscheme.upper()
+        if scheme.startswith("TEX MATH SY"):
+            self.fonttype = MATHSY
+        elif scheme.startswith("TEX MATH EX"):
+            self.fonttype = MATHEX
+
+        self.fontdimens = {}
+        for i in range(sizes.np):
+            name = f"PARAMETER{i+1}"
+            if i <= 6:
+                name = BASE_PARAMS[i]
+            elif self.fonttype == MATHSY and i <= 21:
+                name = MATHSY_PARAMS[i - 7]
+            elif self.fonttype == MATHEX and i <= 12:
+                name = MATHEX_PARAMS[i - 7]
+            read_fixed(param(i), name, self.fontdimens)
+
+        lig_kern_map = {}
+        self.right_boundary_char = None
+        self.left_boundary_char = None
+        if sizes.nl > 0:
+            cmd = lig_kern_command(lig_step(0))
+            if cmd.skip_byte == 255:
+                self.right_boundary_char = cmd.next_char
+
+            cmd = lig_kern_command(lig_step((sizes.nl - 1)))
+            if cmd.skip_byte == 255:
+                self.left_boundary_char = 256
+                r = 256 * cmd.op_byte + cmd.remainder
+                lig_kern_map[self.left_boundary_char] = r
+
+        self.chars = {}
+        for c in range(sizes.bc, sizes.ec + 1):
+            if width_index(c) > 0:
+                self.chars[c] = info = {}
+                info["width"] = width(c)
+                if height_index(c) > 0:
+                    info["height"] = height(c)
+                if depth_index(c) > 0:
+                    info["depth"] = depth(c)
+                if italic_index(c) > 0:
+                    info["italic"] = italic(c)
+                char_tag = tag(c)
+                if char_tag == NO_TAG:
+                    pass
+                elif char_tag == LIG_TAG:
+                    lig_kern_map[c] = remainder(c)
+                elif char_tag == LIST_TAG:
+                    info["nextlarger"] = remainder(c)
+                elif char_tag == EXT_TAG:
+                    info["varchar"] = varchar = {}
+                    for i in range(4):
+                        part = data[exten(c) + i]
+                        if i == 3 or part > 0:
+                            name = "rep"
+                            if i == 0:
+                                name = "top"
+                            elif i == 1:
+                                name = "mid"
+                            elif i == 2:
+                                name = "bot"
+                            if noneexistent(part):
+                                varchar[name] = c
+                            else:
+                                varchar[name] = part
+
+        self.ligatures = {}
+        self.kerning = {}
+        for c, i in sorted(lig_kern_map.items()):
+            cmd = lig_kern_command(lig_step(i))
+            if cmd.skip_byte > STOP_FLAG:
+                i = 256 * cmd.op_byte + cmd.remainder
+
+            while i < sizes.nl:
+                cmd = lig_kern_command(lig_step(i))
+                if cmd.skip_byte > STOP_FLAG:
+                    pass
+                else:
+                    if cmd.op_byte >= KERN_FLAG:
+                        r = 256 * (cmd.op_byte - KERN_FLAG) + cmd.remainder
+                        self.kerning.setdefault(c, {})[cmd.next_char] = kern(r)
+                    else:
+                        r = cmd.op_byte
+                        if r == 4 or (r > 7 and r != 11):
+                            # Ligature step with nonstandard code, we output
+                            # the code verbatim.
+                            lig = r
+                        else:
+                            lig = ""
+                            if r % 4 > 1:
+                                lig += "/"
+                            lig += "LIG"
+                            if r % 2 != 0:
+                                lig += "/"
+                            while r > 3:
+                                lig += ">"
+                                r -= 4
+                        self.ligatures.setdefault(c, {})[cmd.next_char] = (
+                            lig,
+                            cmd.remainder,
+                        )
+
+                if cmd.skip_byte >= STOP_FLAG:
+                    break
+                i += cmd.skip_byte + 1
+
+
+if __name__ == "__main__":
+    import sys
+
+    tfm = TFM(sys.argv[1])
+    print(
+        "\n".join(
+            x
+            for x in [
+                f"tfm.checksum={tfm.checksum}",
+                f"tfm.designsize={tfm.designsize}",
+                f"tfm.codingscheme={tfm.codingscheme}",
+                f"tfm.fonttype={tfm.fonttype}",
+                f"tfm.family={tfm.family}",
+                f"tfm.seven_bit_safe_flag={tfm.seven_bit_safe_flag}",
+                f"tfm.face={tfm.face}",
+                f"tfm.extraheader={tfm.extraheader}",
+                f"tfm.fontdimens={tfm.fontdimens}",
+                f"tfm.right_boundary_char={tfm.right_boundary_char}",
+                f"tfm.left_boundary_char={tfm.left_boundary_char}",
+                f"tfm.kerning={tfm.kerning}",
+                f"tfm.ligatures={tfm.ligatures}",
+                f"tfm.chars={tfm.chars}",
+            ]
+        )
+    )
+    print(tfm)

.venv/lib/python3.12/site-packages/fontTools/ttLib/__init__.py

@@ -0,0 +1,29 @@
+"""fontTools.ttLib -- a package for dealing with TrueType fonts."""
+
+from fontTools.config import OPTIONS
+from fontTools.misc.loggingTools import deprecateFunction
+import logging
+
+log = logging.getLogger(__name__)
+
+
+OPTIMIZE_FONT_SPEED = OPTIONS["fontTools.ttLib:OPTIMIZE_FONT_SPEED"]
+
+
+class TTLibError(Exception):
+    pass
+
+
+class TTLibFileIsCollectionError(TTLibError):
+    pass
+
+
+@deprecateFunction("use logging instead", category=DeprecationWarning)
+def debugmsg(msg):
+    import time
+
+    print(msg + time.strftime("  (%H:%M:%S)", time.localtime(time.time())))
+
+
+from fontTools.ttLib.ttFont import *
+from fontTools.ttLib.ttCollection import TTCollection

.venv/lib/python3.12/site-packages/fontTools/ttLib/__main__.py

@@ -0,0 +1,148 @@
+import sys
+from fontTools.ttLib import OPTIMIZE_FONT_SPEED, TTLibError, TTLibFileIsCollectionError
+from fontTools.ttLib.ttFont import *
+from fontTools.ttLib.ttCollection import TTCollection
+
+
+def main(args=None):
+    """Open/save fonts with TTFont() or TTCollection()
+
+      ./fonttools ttLib [-oFILE] [-yNUMBER] files...
+
+    If multiple files are given on the command-line,
+    they are each opened (as a font or collection),
+    and added to the font list.
+
+    If -o (output-file) argument is given, the font
+    list is then saved to the output file, either as
+    a single font, if there is only one font, or as
+    a collection otherwise.
+
+    If -y (font-number) argument is given, only the
+    specified font from collections is opened.
+
+    The above allow extracting a single font from a
+    collection, or combining multiple fonts into a
+    collection.
+
+    If --lazy or --no-lazy are give, those are passed
+    to the TTFont() or TTCollection() constructors.
+    """
+    from fontTools import configLogger
+
+    if args is None:
+        args = sys.argv[1:]
+
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        "fonttools ttLib",
+        description="Open/save fonts with TTFont() or TTCollection()",
+        epilog="""
+		If multiple files are given on the command-line,
+		they are each opened (as a font or collection),
+		and added to the font list.
+
+		The above, when combined with -o / --output,
+		allows for extracting a single font from a
+		collection, or combining multiple fonts into a
+		collection.
+		""",
+    )
+    parser.add_argument("font", metavar="font", nargs="*", help="Font file.")
+    parser.add_argument(
+        "-t", "--table", metavar="table", action="append", help="Tables to decompile."
+    )
+    parser.add_argument(
+        "-o", "--output", metavar="FILE", default=None, help="Output file."
+    )
+    parser.add_argument(
+        "-y", metavar="NUMBER", default=-1, help="Font number to load from collections."
+    )
+    parser.add_argument(
+        "--lazy", action="store_true", default=None, help="Load fonts lazily."
+    )
+    parser.add_argument(
+        "--no-lazy", dest="lazy", action="store_false", help="Load fonts immediately."
+    )
+    parser.add_argument(
+        "--flavor",
+        dest="flavor",
+        default=None,
+        help="Flavor of output font. 'woff' or 'woff2'.",
+    )
+    parser.add_argument(
+        "--no-recalc-timestamp",
+        dest="recalcTimestamp",
+        action="store_false",
+        help="Keep the original font 'modified' timestamp.",
+    )
+    parser.add_argument(
+        "-b",
+        dest="recalcBBoxes",
+        action="store_false",
+        help="Don't recalc glyph bounding boxes: use the values in the original font.",
+    )
+    parser.add_argument(
+        "--optimize-font-speed",
+        action="store_true",
+        help=(
+            "Enable optimizations that prioritize speed over file size. This "
+            "mainly affects how glyf table and gvar / VARC tables are compiled."
+        ),
+    )
+    options = parser.parse_args(args)
+
+    fontNumber = int(options.y) if options.y is not None else None
+    outFile = options.output
+    lazy = options.lazy
+    flavor = options.flavor
+    tables = options.table
+    recalcBBoxes = options.recalcBBoxes
+    recalcTimestamp = options.recalcTimestamp
+    optimizeFontSpeed = options.optimize_font_speed
+
+    fonts = []
+    for f in options.font:
+        try:
+            font = TTFont(
+                f,
+                recalcBBoxes=recalcBBoxes,
+                recalcTimestamp=recalcTimestamp,
+                fontNumber=fontNumber,
+                lazy=lazy,
+            )
+            if optimizeFontSpeed:
+                font.cfg[OPTIMIZE_FONT_SPEED] = optimizeFontSpeed
+            fonts.append(font)
+        except TTLibFileIsCollectionError:
+            collection = TTCollection(f, lazy=lazy)
+            fonts.extend(collection.fonts)
+
+    if tables is None:
+        if lazy is False:
+            tables = ["*"]
+        elif optimizeFontSpeed:
+            tables = {"glyf", "gvar", "VARC"}.intersection(font.keys())
+        else:
+            tables = []
+    for font in fonts:
+        if "GlyphOrder" in tables:
+            font.getGlyphOrder()
+        for table in tables if "*" not in tables else font.keys():
+            font[table]  # Decompiles
+
+    if outFile is not None:
+        if len(fonts) == 1:
+            fonts[0].flavor = flavor
+            fonts[0].save(outFile)
+        else:
+            if flavor is not None:
+                raise TTLibError("Cannot set flavor for collections.")
+            collection = TTCollection()
+            collection.fonts = fonts
+            collection.save(outFile)
+
+
+if __name__ == "__main__":
+    sys.exit(main())

.venv/lib/python3.12/site-packages/fontTools/ttLib/macUtils.py

@@ -0,0 +1,54 @@
+"""ttLib.macUtils.py -- Various Mac-specific stuff."""
+
+from io import BytesIO
+from fontTools.misc.macRes import ResourceReader, ResourceError
+
+
+def getSFNTResIndices(path):
+    """Determine whether a file has a 'sfnt' resource fork or not."""
+    try:
+        reader = ResourceReader(path)
+        indices = reader.getIndices("sfnt")
+        reader.close()
+        return indices
+    except ResourceError:
+        return []
+
+
+def openTTFonts(path):
+    """Given a pathname, return a list of TTFont objects. In the case
+    of a flat TTF/OTF file, the list will contain just one font object;
+    but in the case of a Mac font suitcase it will contain as many
+    font objects as there are sfnt resources in the file.
+    """
+    from fontTools import ttLib
+
+    fonts = []
+    sfnts = getSFNTResIndices(path)
+    if not sfnts:
+        fonts.append(ttLib.TTFont(path))
+    else:
+        for index in sfnts:
+            fonts.append(ttLib.TTFont(path, index))
+        if not fonts:
+            raise ttLib.TTLibError("no fonts found in file '%s'" % path)
+    return fonts
+
+
+class SFNTResourceReader(BytesIO):
+    """Simple read-only file wrapper for 'sfnt' resources."""
+
+    def __init__(self, path, res_name_or_index):
+        from fontTools import ttLib
+
+        reader = ResourceReader(path)
+        if isinstance(res_name_or_index, str):
+            rsrc = reader.getNamedResource("sfnt", res_name_or_index)
+        else:
+            rsrc = reader.getIndResource("sfnt", res_name_or_index)
+        if rsrc is None:
+            raise ttLib.TTLibError("sfnt resource not found: %s" % res_name_or_index)
+        reader.close()
+        self.rsrc = rsrc
+        super(SFNTResourceReader, self).__init__(rsrc.data)
+        self.name = path

.venv/lib/python3.12/site-packages/fontTools/ttLib/removeOverlaps.py

@@ -0,0 +1,394 @@
+"""Simplify TrueType glyphs by merging overlapping contours/components.
+
+Requires https://github.com/fonttools/skia-pathops
+"""
+
+import itertools
+import logging
+from typing import Callable, Iterable, Optional, Mapping
+
+from fontTools.cffLib import CFFFontSet
+from fontTools.ttLib import ttFont
+from fontTools.ttLib.tables import _g_l_y_f
+from fontTools.ttLib.tables import _h_m_t_x
+from fontTools.misc.psCharStrings import T2CharString
+from fontTools.misc.roundTools import otRound, noRound
+from fontTools.pens.ttGlyphPen import TTGlyphPen
+from fontTools.pens.t2CharStringPen import T2CharStringPen
+
+import pathops
+
+__all__ = ["removeOverlaps"]
+
+
+class RemoveOverlapsError(Exception):
+    pass
+
+
+log = logging.getLogger("fontTools.ttLib.removeOverlaps")
+
+_TTGlyphMapping = Mapping[str, ttFont._TTGlyph]
+
+
+def skPathFromGlyph(glyphName: str, glyphSet: _TTGlyphMapping) -> pathops.Path:
+    path = pathops.Path()
+    pathPen = path.getPen(glyphSet=glyphSet)
+    glyphSet[glyphName].draw(pathPen)
+    return path
+
+
+def skPathFromGlyphComponent(
+    component: _g_l_y_f.GlyphComponent, glyphSet: _TTGlyphMapping
+):
+    baseGlyphName, transformation = component.getComponentInfo()
+    path = skPathFromGlyph(baseGlyphName, glyphSet)
+    return path.transform(*transformation)
+
+
+def componentsOverlap(glyph: _g_l_y_f.Glyph, glyphSet: _TTGlyphMapping) -> bool:
+    if not glyph.isComposite():
+        raise ValueError("This method only works with TrueType composite glyphs")
+    if len(glyph.components) < 2:
+        return False  # single component, no overlaps
+
+    component_paths = {}
+
+    def _get_nth_component_path(index: int) -> pathops.Path:
+        if index not in component_paths:
+            component_paths[index] = skPathFromGlyphComponent(
+                glyph.components[index], glyphSet
+            )
+        return component_paths[index]
+
+    return any(
+        pathops.op(
+            _get_nth_component_path(i),
+            _get_nth_component_path(j),
+            pathops.PathOp.INTERSECTION,
+            fix_winding=False,
+            keep_starting_points=False,
+        )
+        for i, j in itertools.combinations(range(len(glyph.components)), 2)
+    )
+
+
+def ttfGlyphFromSkPath(path: pathops.Path) -> _g_l_y_f.Glyph:
+    # Skia paths have no 'components', no need for glyphSet
+    ttPen = TTGlyphPen(glyphSet=None)
+    path.draw(ttPen)
+    glyph = ttPen.glyph()
+    assert not glyph.isComposite()
+    # compute glyph.xMin (glyfTable parameter unused for non composites)
+    glyph.recalcBounds(glyfTable=None)
+    return glyph
+
+
+def _charString_from_SkPath(
+    path: pathops.Path, charString: T2CharString
+) -> T2CharString:
+    if charString.width == charString.private.defaultWidthX:
+        width = None
+    else:
+        width = charString.width - charString.private.nominalWidthX
+    t2Pen = T2CharStringPen(width=width, glyphSet=None)
+    path.draw(t2Pen)
+    return t2Pen.getCharString(charString.private, charString.globalSubrs)
+
+
+def _round_path(
+    path: pathops.Path, round: Callable[[float], float] = otRound
+) -> pathops.Path:
+    rounded_path = pathops.Path()
+    for verb, points in path:
+        rounded_path.add(verb, *((round(p[0]), round(p[1])) for p in points))
+    return rounded_path
+
+
+def _simplify(
+    path: pathops.Path,
+    debugGlyphName: str,
+    *,
+    round: Callable[[float], float] = otRound,
+) -> pathops.Path:
+    # skia-pathops has a bug where it sometimes fails to simplify paths when there
+    # are float coordinates and control points are very close to one another.
+    # Rounding coordinates to integers works around the bug.
+    # Since we are going to round glyf coordinates later on anyway, here it is
+    # ok(-ish) to also round before simplify. Better than failing the whole process
+    # for the entire font.
+    # https://bugs.chromium.org/p/skia/issues/detail?id=11958
+    # https://github.com/google/fonts/issues/3365
+    # TODO(anthrotype): remove once this Skia bug is fixed
+    try:
+        return pathops.simplify(path, clockwise=path.clockwise)
+    except pathops.PathOpsError:
+        pass
+
+    path = _round_path(path, round=round)
+    try:
+        path = pathops.simplify(path, clockwise=path.clockwise)
+        log.debug(
+            "skia-pathops failed to simplify '%s' with float coordinates, "
+            "but succeded using rounded integer coordinates",
+            debugGlyphName,
+        )
+        return path
+    except pathops.PathOpsError as e:
+        if log.isEnabledFor(logging.DEBUG):
+            path.dump()
+        raise RemoveOverlapsError(
+            f"Failed to remove overlaps from glyph {debugGlyphName!r}"
+        ) from e
+
+    raise AssertionError("Unreachable")
+
+
+def _same_path(path1: pathops.Path, path2: pathops.Path) -> bool:
+    return {tuple(c) for c in path1.contours} == {tuple(c) for c in path2.contours}
+
+
+def removeTTGlyphOverlaps(
+    glyphName: str,
+    glyphSet: _TTGlyphMapping,
+    glyfTable: _g_l_y_f.table__g_l_y_f,
+    hmtxTable: _h_m_t_x.table__h_m_t_x,
+    removeHinting: bool = True,
+) -> bool:
+    glyph = glyfTable[glyphName]
+    # decompose composite glyphs only if components overlap each other
+    if (
+        glyph.numberOfContours > 0
+        or glyph.isComposite()
+        and componentsOverlap(glyph, glyphSet)
+    ):
+        path = skPathFromGlyph(glyphName, glyphSet)
+
+        # remove overlaps
+        path2 = _simplify(path, glyphName)
+
+        # replace TTGlyph if simplified path is different (ignoring contour order)
+        if not _same_path(path, path2):
+            glyfTable[glyphName] = glyph = ttfGlyphFromSkPath(path2)
+            # simplified glyph is always unhinted
+            assert not glyph.program
+            # also ensure hmtx LSB == glyph.xMin so glyph origin is at x=0
+            width, lsb = hmtxTable[glyphName]
+            if lsb != glyph.xMin:
+                hmtxTable[glyphName] = (width, glyph.xMin)
+            return True
+
+    if removeHinting:
+        glyph.removeHinting()
+    return False
+
+
+def _remove_glyf_overlaps(
+    *,
+    font: ttFont.TTFont,
+    glyphNames: Iterable[str],
+    glyphSet: _TTGlyphMapping,
+    removeHinting: bool,
+    ignoreErrors: bool,
+) -> None:
+    glyfTable = font["glyf"]
+    hmtxTable = font["hmtx"]
+
+    # process all simple glyphs first, then composites with increasing component depth,
+    # so that by the time we test for component intersections the respective base glyphs
+    # have already been simplified
+    glyphNames = sorted(
+        glyphNames,
+        key=lambda name: (
+            (
+                glyfTable[name].getCompositeMaxpValues(glyfTable).maxComponentDepth
+                if glyfTable[name].isComposite()
+                else 0
+            ),
+            name,
+        ),
+    )
+    modified = set()
+    for glyphName in glyphNames:
+        try:
+            if removeTTGlyphOverlaps(
+                glyphName, glyphSet, glyfTable, hmtxTable, removeHinting
+            ):
+                modified.add(glyphName)
+        except RemoveOverlapsError:
+            if not ignoreErrors:
+                raise
+            log.error("Failed to remove overlaps for '%s'", glyphName)
+
+    log.debug("Removed overlaps for %s glyphs:\n%s", len(modified), " ".join(modified))
+
+
+def _remove_charstring_overlaps(
+    *,
+    glyphName: str,
+    glyphSet: _TTGlyphMapping,
+    cffFontSet: CFFFontSet,
+) -> bool:
+    path = skPathFromGlyph(glyphName, glyphSet)
+
+    # remove overlaps
+    path2 = _simplify(path, glyphName, round=noRound)
+
+    # replace TTGlyph if simplified path is different (ignoring contour order)
+    if not _same_path(path, path2):
+        charStrings = cffFontSet[0].CharStrings
+        charStrings[glyphName] = _charString_from_SkPath(path2, charStrings[glyphName])
+        return True
+
+    return False
+
+
+def _remove_cff_overlaps(
+    *,
+    font: ttFont.TTFont,
+    glyphNames: Iterable[str],
+    glyphSet: _TTGlyphMapping,
+    removeHinting: bool,
+    ignoreErrors: bool,
+    table_tag: str,
+    removeUnusedSubroutines: bool = True,
+) -> None:
+    cffFontSet = font[table_tag].cff
+    modified = set()
+    for glyphName in glyphNames:
+        try:
+            if _remove_charstring_overlaps(
+                glyphName=glyphName,
+                glyphSet=glyphSet,
+                cffFontSet=cffFontSet,
+            ):
+                modified.add(glyphName)
+        except RemoveOverlapsError:
+            if not ignoreErrors:
+                raise
+            log.error("Failed to remove overlaps for '%s'", glyphName)
+
+    if not modified:
+        log.debug("No overlaps found in the specified CFF glyphs")
+        return
+
+    if removeHinting:
+        cffFontSet.remove_hints()
+
+    if removeUnusedSubroutines:
+        cffFontSet.remove_unused_subroutines()
+
+    log.debug("Removed overlaps for %s glyphs:\n%s", len(modified), " ".join(modified))
+
+
+def removeOverlaps(
+    font: ttFont.TTFont,
+    glyphNames: Optional[Iterable[str]] = None,
+    removeHinting: bool = True,
+    ignoreErrors: bool = False,
+    *,
+    removeUnusedSubroutines: bool = True,
+) -> None:
+    """Simplify glyphs in TTFont by merging overlapping contours.
+
+    Overlapping components are first decomposed to simple contours, then merged.
+
+    Currently this only works for fonts with 'glyf' or 'CFF ' tables.
+    Raises NotImplementedError if 'glyf' or 'CFF ' tables are absent.
+
+    Note that removing overlaps invalidates the hinting. By default we drop hinting
+    from all glyphs whether or not overlaps are removed from a given one, as it would
+    look weird if only some glyphs are left (un)hinted.
+
+    Args:
+        font: input TTFont object, modified in place.
+        glyphNames: optional iterable of glyph names (str) to remove overlaps from.
+            By default, all glyphs in the font are processed.
+        removeHinting (bool): set to False to keep hinting for unmodified glyphs.
+        ignoreErrors (bool): set to True to ignore errors while removing overlaps,
+            thus keeping the tricky glyphs unchanged (fonttools/fonttools#2363).
+        removeUnusedSubroutines (bool): set to False to keep unused subroutines
+            in CFF table after removing overlaps. Default is to remove them if
+            any glyphs are modified.
+    """
+
+    if "glyf" not in font and "CFF " not in font and "CFF2" not in font:
+        raise NotImplementedError(
+            "No outline data found in the font: missing 'glyf', 'CFF ', or 'CFF2' table"
+        )
+
+    if glyphNames is None:
+        glyphNames = font.getGlyphOrder()
+
+    # Wraps the underlying glyphs, takes care of interfacing with drawing pens
+    glyphSet = font.getGlyphSet()
+
+    if "glyf" in font:
+        _remove_glyf_overlaps(
+            font=font,
+            glyphNames=glyphNames,
+            glyphSet=glyphSet,
+            removeHinting=removeHinting,
+            ignoreErrors=ignoreErrors,
+        )
+
+    if "CFF " in font or "CFF2" in font:
+        _remove_cff_overlaps(
+            font=font,
+            glyphNames=glyphNames,
+            glyphSet=glyphSet,
+            removeHinting=removeHinting,
+            ignoreErrors=ignoreErrors,
+            table_tag="CFF " if "CFF " in font else "CFF2",
+            removeUnusedSubroutines=removeUnusedSubroutines,
+        )
+
+
+def main(args=None):
+    """Simplify glyphs in TTFont by merging overlapping contours."""
+
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        "fonttools ttLib.removeOverlaps", description=__doc__
+    )
+
+    parser.add_argument("input", metavar="INPUT.ttf", help="Input font file")
+    parser.add_argument("output", metavar="OUTPUT.ttf", help="Output font file")
+    parser.add_argument(
+        "glyphs",
+        metavar="GLYPHS",
+        nargs="*",
+        help="Optional list of glyph names to remove overlaps from",
+    )
+    parser.add_argument(
+        "--keep-hinting",
+        action="store_true",
+        help="Keep hinting for unmodified glyphs, default is to drop hinting",
+    )
+    parser.add_argument(
+        "--ignore-errors",
+        action="store_true",
+        help="ignore errors while removing overlaps, "
+        "thus keeping the tricky glyphs unchanged",
+    )
+    parser.add_argument(
+        "--keep-unused-subroutines",
+        action="store_true",
+        help="Keep unused subroutines in CFF table after removing overlaps, "
+        "default is to remove them if any glyphs are modified",
+    )
+    args = parser.parse_args(args)
+
+    with ttFont.TTFont(args.input) as font:
+        removeOverlaps(
+            font=font,
+            glyphNames=args.glyphs or None,
+            removeHinting=not args.keep_hinting,
+            ignoreErrors=args.ignore_errors,
+            removeUnusedSubroutines=not args.keep_unused_subroutines,
+        )
+        font.save(args.output)
+
+
+if __name__ == "__main__":
+    main()

.venv/lib/python3.12/site-packages/fontTools/ttLib/reorderGlyphs.py

@@ -0,0 +1,284 @@
+"""Reorder glyphs in a font."""
+
+__author__ = "Rod Sheeter"
+
+# See https://docs.google.com/document/d/1h9O-C_ndods87uY0QeIIcgAMiX2gDTpvO_IhMJsKAqs/
+# for details.
+
+
+from fontTools import ttLib
+from fontTools.ttLib.tables import otBase
+from fontTools.ttLib.tables import otTables as ot
+from abc import ABC, abstractmethod
+from dataclasses import dataclass
+from collections import deque
+from typing import (
+    Optional,
+    Any,
+    Callable,
+    Deque,
+    Iterable,
+    List,
+    Tuple,
+)
+
+_COVERAGE_ATTR = "Coverage"  # tables that have one coverage use this name
+
+
+def _sort_by_gid(
+    get_glyph_id: Callable[[str], int],
+    glyphs: List[str],
+    parallel_list: Optional[List[Any]],
+):
+    if parallel_list:
+        reordered = sorted(
+            ((g, e) for g, e in zip(glyphs, parallel_list)),
+            key=lambda t: get_glyph_id(t[0]),
+        )
+        sorted_glyphs, sorted_parallel_list = map(list, zip(*reordered))
+        parallel_list[:] = sorted_parallel_list
+    else:
+        sorted_glyphs = sorted(glyphs, key=get_glyph_id)
+
+    glyphs[:] = sorted_glyphs
+
+
+def _get_dotted_attr(value: Any, dotted_attr: str) -> Any:
+    attr_names = dotted_attr.split(".")
+    assert attr_names
+
+    while attr_names:
+        attr_name = attr_names.pop(0)
+        value = getattr(value, attr_name)
+    return value
+
+
+class ReorderRule(ABC):
+    """A rule to reorder something in a font to match the fonts glyph order."""
+
+    @abstractmethod
+    def apply(self, font: ttLib.TTFont, value: otBase.BaseTable) -> None: ...
+
+
+@dataclass(frozen=True)
+class ReorderCoverage(ReorderRule):
+    """Reorder a Coverage table, and optionally a list that is sorted parallel to it."""
+
+    # A list that is parallel to Coverage
+    parallel_list_attr: Optional[str] = None
+    coverage_attr: str = _COVERAGE_ATTR
+
+    def apply(self, font: ttLib.TTFont, value: otBase.BaseTable) -> None:
+        coverage = _get_dotted_attr(value, self.coverage_attr)
+
+        if type(coverage) is not list:
+            # Normal path, process one coverage that might have a parallel list
+            parallel_list = None
+            if self.parallel_list_attr:
+                parallel_list = _get_dotted_attr(value, self.parallel_list_attr)
+                assert (
+                    type(parallel_list) is list
+                ), f"{self.parallel_list_attr} should be a list"
+                assert len(parallel_list) == len(coverage.glyphs), "Nothing makes sense"
+
+            _sort_by_gid(font.getGlyphID, coverage.glyphs, parallel_list)
+
+        else:
+            # A few tables have a list of coverage. No parallel list can exist.
+            assert (
+                not self.parallel_list_attr
+            ), f"Can't have multiple coverage AND a parallel list; {self}"
+            for coverage_entry in coverage:
+                _sort_by_gid(font.getGlyphID, coverage_entry.glyphs, None)
+
+
+@dataclass(frozen=True)
+class ReorderList(ReorderRule):
+    """Reorder the items within a list to match the updated glyph order.
+
+    Useful when a list ordered by coverage itself contains something ordered by a gid.
+    For example, the PairSet table of https://docs.microsoft.com/en-us/typography/opentype/spec/gpos#lookup-type-2-pair-adjustment-positioning-subtable.
+    """
+
+    list_attr: str
+    key: str
+
+    def apply(self, font: ttLib.TTFont, value: otBase.BaseTable) -> None:
+        lst = _get_dotted_attr(value, self.list_attr)
+        assert isinstance(lst, list), f"{self.list_attr} should be a list"
+        lst.sort(key=lambda v: font.getGlyphID(getattr(v, self.key)))
+
+
+# (Type, Optional Format) => List[ReorderRule]
+# Encodes the relationships Cosimo identified
+_REORDER_RULES = {
+    # GPOS
+    (ot.SinglePos, 1): [ReorderCoverage()],
+    (ot.SinglePos, 2): [ReorderCoverage(parallel_list_attr="Value")],
+    (ot.PairPos, 1): [ReorderCoverage(parallel_list_attr="PairSet")],
+    (ot.PairSet, None): [ReorderList("PairValueRecord", key="SecondGlyph")],
+    (ot.PairPos, 2): [ReorderCoverage()],
+    (ot.CursivePos, 1): [ReorderCoverage(parallel_list_attr="EntryExitRecord")],
+    (ot.MarkBasePos, 1): [
+        ReorderCoverage(
+            coverage_attr="MarkCoverage", parallel_list_attr="MarkArray.MarkRecord"
+        ),
+        ReorderCoverage(
+            coverage_attr="BaseCoverage", parallel_list_attr="BaseArray.BaseRecord"
+        ),
+    ],
+    (ot.MarkLigPos, 1): [
+        ReorderCoverage(
+            coverage_attr="MarkCoverage", parallel_list_attr="MarkArray.MarkRecord"
+        ),
+        ReorderCoverage(
+            coverage_attr="LigatureCoverage",
+            parallel_list_attr="LigatureArray.LigatureAttach",
+        ),
+    ],
+    (ot.MarkMarkPos, 1): [
+        ReorderCoverage(
+            coverage_attr="Mark1Coverage", parallel_list_attr="Mark1Array.MarkRecord"
+        ),
+        ReorderCoverage(
+            coverage_attr="Mark2Coverage", parallel_list_attr="Mark2Array.Mark2Record"
+        ),
+    ],
+    (ot.ContextPos, 1): [ReorderCoverage(parallel_list_attr="PosRuleSet")],
+    (ot.ContextPos, 2): [ReorderCoverage()],
+    (ot.ContextPos, 3): [ReorderCoverage()],
+    (ot.ChainContextPos, 1): [ReorderCoverage(parallel_list_attr="ChainPosRuleSet")],
+    (ot.ChainContextPos, 2): [ReorderCoverage()],
+    (ot.ChainContextPos, 3): [
+        ReorderCoverage(coverage_attr="BacktrackCoverage"),
+        ReorderCoverage(coverage_attr="InputCoverage"),
+        ReorderCoverage(coverage_attr="LookAheadCoverage"),
+    ],
+    # GSUB
+    (ot.ContextSubst, 1): [ReorderCoverage(parallel_list_attr="SubRuleSet")],
+    (ot.ContextSubst, 2): [ReorderCoverage()],
+    (ot.ContextSubst, 3): [ReorderCoverage()],
+    (ot.ChainContextSubst, 1): [ReorderCoverage(parallel_list_attr="ChainSubRuleSet")],
+    (ot.ChainContextSubst, 2): [ReorderCoverage()],
+    (ot.ChainContextSubst, 3): [
+        ReorderCoverage(coverage_attr="BacktrackCoverage"),
+        ReorderCoverage(coverage_attr="InputCoverage"),
+        ReorderCoverage(coverage_attr="LookAheadCoverage"),
+    ],
+    (ot.ReverseChainSingleSubst, 1): [
+        ReorderCoverage(parallel_list_attr="Substitute"),
+        ReorderCoverage(coverage_attr="BacktrackCoverage"),
+        ReorderCoverage(coverage_attr="LookAheadCoverage"),
+    ],
+    # GDEF
+    (ot.AttachList, None): [ReorderCoverage(parallel_list_attr="AttachPoint")],
+    (ot.LigCaretList, None): [ReorderCoverage(parallel_list_attr="LigGlyph")],
+    (ot.MarkGlyphSetsDef, None): [ReorderCoverage()],
+    # MATH
+    (ot.MathGlyphInfo, None): [ReorderCoverage(coverage_attr="ExtendedShapeCoverage")],
+    (ot.MathItalicsCorrectionInfo, None): [
+        ReorderCoverage(parallel_list_attr="ItalicsCorrection")
+    ],
+    (ot.MathTopAccentAttachment, None): [
+        ReorderCoverage(
+            coverage_attr="TopAccentCoverage", parallel_list_attr="TopAccentAttachment"
+        )
+    ],
+    (ot.MathKernInfo, None): [
+        ReorderCoverage(
+            coverage_attr="MathKernCoverage", parallel_list_attr="MathKernInfoRecords"
+        )
+    ],
+    (ot.MathVariants, None): [
+        ReorderCoverage(
+            coverage_attr="VertGlyphCoverage",
+            parallel_list_attr="VertGlyphConstruction",
+        ),
+        ReorderCoverage(
+            coverage_attr="HorizGlyphCoverage",
+            parallel_list_attr="HorizGlyphConstruction",
+        ),
+    ],
+}
+
+
+# TODO Port to otTraverse
+
+SubTablePath = Tuple[otBase.BaseTable.SubTableEntry, ...]
+
+
+def _bfs_base_table(
+    root: otBase.BaseTable, root_accessor: str
+) -> Iterable[SubTablePath]:
+    yield from _traverse_ot_data(
+        root, root_accessor, lambda frontier, new: frontier.extend(new)
+    )
+
+
+# Given f(current frontier, new entries) add new entries to frontier
+AddToFrontierFn = Callable[[Deque[SubTablePath], List[SubTablePath]], None]
+
+
+def _traverse_ot_data(
+    root: otBase.BaseTable, root_accessor: str, add_to_frontier_fn: AddToFrontierFn
+) -> Iterable[SubTablePath]:
+    # no visited because general otData is forward-offset only and thus cannot cycle
+
+    frontier: Deque[SubTablePath] = deque()
+    frontier.append((otBase.BaseTable.SubTableEntry(root_accessor, root),))
+    while frontier:
+        # path is (value, attr_name) tuples. attr_name is attr of parent to get value
+        path = frontier.popleft()
+        current = path[-1].value
+
+        yield path
+
+        new_entries = []
+        for subtable_entry in current.iterSubTables():
+            new_entries.append(path + (subtable_entry,))
+
+        add_to_frontier_fn(frontier, new_entries)
+
+
+def reorderGlyphs(font: ttLib.TTFont, new_glyph_order: List[str]):
+    old_glyph_order = font.getGlyphOrder()
+    if len(new_glyph_order) != len(old_glyph_order):
+        raise ValueError(
+            f"New glyph order contains {len(new_glyph_order)} glyphs, "
+            f"but font has {len(old_glyph_order)} glyphs"
+        )
+
+    if set(old_glyph_order) != set(new_glyph_order):
+        raise ValueError(
+            "New glyph order does not contain the same set of glyphs as the font:\n"
+            f"* only in new: {set(new_glyph_order) - set(old_glyph_order)}\n"
+            f"* only in old: {set(old_glyph_order) - set(new_glyph_order)}"
+        )
+
+    # Changing the order of glyphs in a TTFont requires that all tables that use
+    # glyph indexes have been fully.
+    # Cf. https://github.com/fonttools/fonttools/issues/2060
+    font.ensureDecompiled()
+    not_loaded = sorted(t for t in font.keys() if not font.isLoaded(t))
+    if not_loaded:
+        raise ValueError(f"Everything should be loaded, following aren't: {not_loaded}")
+
+    font.setGlyphOrder(new_glyph_order)
+
+    coverage_containers = {"GDEF", "GPOS", "GSUB", "MATH"}
+    for tag in coverage_containers:
+        if tag in font.keys():
+            for path in _bfs_base_table(font[tag].table, f'font["{tag}"]'):
+                value = path[-1].value
+                reorder_key = (type(value), getattr(value, "Format", None))
+                for reorder in _REORDER_RULES.get(reorder_key, []):
+                    reorder.apply(font, value)
+
+    for tag in ["CFF ", "CFF2"]:
+        if tag in font:
+            cff_table = font[tag]
+            charstrings = cff_table.cff.topDictIndex[0].CharStrings.charStrings
+            cff_table.cff.topDictIndex[0].charset = new_glyph_order
+            cff_table.cff.topDictIndex[0].CharStrings.charStrings = {
+                k: charstrings.get(k) for k in new_glyph_order
+            }

.venv/lib/python3.12/site-packages/fontTools/ttLib/scaleUpem.py

@@ -0,0 +1,435 @@
+"""Change the units-per-EM of a font.
+
+AAT and Graphite tables are not supported. CFF/CFF2 fonts
+are de-subroutinized."""
+
+from fontTools.ttLib.ttVisitor import TTVisitor
+import fontTools.ttLib as ttLib
+import fontTools.ttLib.tables.otBase as otBase
+import fontTools.ttLib.tables.otTables as otTables
+from fontTools.cffLib import VarStoreData
+import fontTools.cffLib.specializer as cffSpecializer
+from fontTools.varLib import builder  # for VarData.calculateNumShorts
+from fontTools.varLib.multiVarStore import OnlineMultiVarStoreBuilder
+from fontTools.misc.vector import Vector
+from fontTools.misc.fixedTools import otRound
+from fontTools.misc.iterTools import batched
+
+__all__ = ["scale_upem", "ScalerVisitor"]
+
+
+class ScalerVisitor(TTVisitor):
+    def __init__(self, scaleFactor):
+        self.scaleFactor = scaleFactor
+
+    def scale(self, v):
+        return otRound(v * self.scaleFactor)
+
+
+@ScalerVisitor.register_attrs(
+    (
+        (ttLib.getTableClass("head"), ("unitsPerEm", "xMin", "yMin", "xMax", "yMax")),
+        (ttLib.getTableClass("post"), ("underlinePosition", "underlineThickness")),
+        (ttLib.getTableClass("VORG"), ("defaultVertOriginY")),
+        (
+            ttLib.getTableClass("hhea"),
+            (
+                "ascent",
+                "descent",
+                "lineGap",
+                "advanceWidthMax",
+                "minLeftSideBearing",
+                "minRightSideBearing",
+                "xMaxExtent",
+                "caretOffset",
+            ),
+        ),
+        (
+            ttLib.getTableClass("vhea"),
+            (
+                "ascent",
+                "descent",
+                "lineGap",
+                "advanceHeightMax",
+                "minTopSideBearing",
+                "minBottomSideBearing",
+                "yMaxExtent",
+                "caretOffset",
+            ),
+        ),
+        (
+            ttLib.getTableClass("OS/2"),
+            (
+                "xAvgCharWidth",
+                "ySubscriptXSize",
+                "ySubscriptYSize",
+                "ySubscriptXOffset",
+                "ySubscriptYOffset",
+                "ySuperscriptXSize",
+                "ySuperscriptYSize",
+                "ySuperscriptXOffset",
+                "ySuperscriptYOffset",
+                "yStrikeoutSize",
+                "yStrikeoutPosition",
+                "sTypoAscender",
+                "sTypoDescender",
+                "sTypoLineGap",
+                "usWinAscent",
+                "usWinDescent",
+                "sxHeight",
+                "sCapHeight",
+            ),
+        ),
+        (
+            otTables.ValueRecord,
+            ("XAdvance", "YAdvance", "XPlacement", "YPlacement"),
+        ),  # GPOS
+        (otTables.Anchor, ("XCoordinate", "YCoordinate")),  # GPOS
+        (otTables.CaretValue, ("Coordinate")),  # GDEF
+        (otTables.BaseCoord, ("Coordinate")),  # BASE
+        (otTables.MathValueRecord, ("Value")),  # MATH
+        (otTables.ClipBox, ("xMin", "yMin", "xMax", "yMax")),  # COLR
+    )
+)
+def visit(visitor, obj, attr, value):
+    setattr(obj, attr, visitor.scale(value))
+
+
+@ScalerVisitor.register_attr(
+    (ttLib.getTableClass("hmtx"), ttLib.getTableClass("vmtx")), "metrics"
+)
+def visit(visitor, obj, attr, metrics):
+    for g in metrics:
+        advance, lsb = metrics[g]
+        metrics[g] = visitor.scale(advance), visitor.scale(lsb)
+
+
+@ScalerVisitor.register_attr(ttLib.getTableClass("VMTX"), "VOriginRecords")
+def visit(visitor, obj, attr, VOriginRecords):
+    for g in VOriginRecords:
+        VOriginRecords[g] = visitor.scale(VOriginRecords[g])
+
+
+@ScalerVisitor.register_attr(ttLib.getTableClass("glyf"), "glyphs")
+def visit(visitor, obj, attr, glyphs):
+    for g in glyphs.values():
+        for attr in ("xMin", "xMax", "yMin", "yMax"):
+            v = getattr(g, attr, None)
+            if v is not None:
+                setattr(g, attr, visitor.scale(v))
+
+        if g.isComposite():
+            for component in g.components:
+                component.x = visitor.scale(component.x)
+                component.y = visitor.scale(component.y)
+            continue
+
+        if hasattr(g, "coordinates"):
+            coordinates = g.coordinates
+            for i, (x, y) in enumerate(coordinates):
+                coordinates[i] = visitor.scale(x), visitor.scale(y)
+
+
+@ScalerVisitor.register_attr(ttLib.getTableClass("gvar"), "variations")
+def visit(visitor, obj, attr, variations):
+    glyfTable = visitor.font["glyf"]
+
+    for glyphName, varlist in variations.items():
+        glyph = glyfTable[glyphName]
+        for var in varlist:
+            coordinates = var.coordinates
+            for i, xy in enumerate(coordinates):
+                if xy is None:
+                    continue
+                coordinates[i] = visitor.scale(xy[0]), visitor.scale(xy[1])
+
+
+@ScalerVisitor.register_attr(ttLib.getTableClass("VARC"), "table")
+def visit(visitor, obj, attr, varc):
+    # VarComposite variations are a pain
+
+    fvar = visitor.font["fvar"]
+    fvarAxes = [a.axisTag for a in fvar.axes]
+
+    store = varc.MultiVarStore
+    storeBuilder = OnlineMultiVarStoreBuilder(fvarAxes)
+
+    for g in varc.VarCompositeGlyphs.VarCompositeGlyph:
+        for component in g.components:
+            t = component.transform
+            t.translateX = visitor.scale(t.translateX)
+            t.translateY = visitor.scale(t.translateY)
+            t.tCenterX = visitor.scale(t.tCenterX)
+            t.tCenterY = visitor.scale(t.tCenterY)
+
+            if component.axisValuesVarIndex != otTables.NO_VARIATION_INDEX:
+                varIdx = component.axisValuesVarIndex
+                # TODO Move this code duplicated below to MultiVarStore.__getitem__,
+                # or a getDeltasAndSupports().
+                if varIdx != otTables.NO_VARIATION_INDEX:
+                    major = varIdx >> 16
+                    minor = varIdx & 0xFFFF
+                    varData = store.MultiVarData[major]
+                    vec = varData.Item[minor]
+                    storeBuilder.setSupports(store.get_supports(major, fvar.axes))
+                    if vec:
+                        m = len(vec) // varData.VarRegionCount
+                        vec = list(batched(vec, m))
+                        vec = [Vector(v) for v in vec]
+                        component.axisValuesVarIndex = storeBuilder.storeDeltas(vec)
+                    else:
+                        component.axisValuesVarIndex = otTables.NO_VARIATION_INDEX
+
+            if component.transformVarIndex != otTables.NO_VARIATION_INDEX:
+                varIdx = component.transformVarIndex
+                if varIdx != otTables.NO_VARIATION_INDEX:
+                    major = varIdx >> 16
+                    minor = varIdx & 0xFFFF
+                    vec = varData.Item[varIdx & 0xFFFF]
+                    major = varIdx >> 16
+                    minor = varIdx & 0xFFFF
+                    varData = store.MultiVarData[major]
+                    vec = varData.Item[minor]
+                    storeBuilder.setSupports(store.get_supports(major, fvar.axes))
+                    if vec:
+                        m = len(vec) // varData.VarRegionCount
+                        flags = component.flags
+                        vec = list(batched(vec, m))
+                        newVec = []
+                        for v in vec:
+                            v = list(v)
+                            i = 0
+                            ## Scale translate & tCenter
+                            if flags & otTables.VarComponentFlags.HAVE_TRANSLATE_X:
+                                v[i] = visitor.scale(v[i])
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_TRANSLATE_Y:
+                                v[i] = visitor.scale(v[i])
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_ROTATION:
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_SCALE_X:
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_SCALE_Y:
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_SKEW_X:
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_SKEW_Y:
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_TCENTER_X:
+                                v[i] = visitor.scale(v[i])
+                                i += 1
+                            if flags & otTables.VarComponentFlags.HAVE_TCENTER_Y:
+                                v[i] = visitor.scale(v[i])
+                                i += 1
+
+                            newVec.append(Vector(v))
+                        vec = newVec
+
+                        component.transformVarIndex = storeBuilder.storeDeltas(vec)
+                    else:
+                        component.transformVarIndex = otTables.NO_VARIATION_INDEX
+
+    varc.MultiVarStore = storeBuilder.finish()
+
+
+@ScalerVisitor.register_attr(ttLib.getTableClass("kern"), "kernTables")
+def visit(visitor, obj, attr, kernTables):
+    for table in kernTables:
+        kernTable = table.kernTable
+        for k in kernTable.keys():
+            kernTable[k] = visitor.scale(kernTable[k])
+
+
+def _cff_scale(visitor, args):
+    for i, arg in enumerate(args):
+        if not isinstance(arg, list):
+            if not isinstance(arg, bytes):
+                args[i] = visitor.scale(arg)
+        else:
+            num_blends = arg[-1]
+            _cff_scale(visitor, arg)
+            arg[-1] = num_blends
+
+
+@ScalerVisitor.register_attr(
+    (ttLib.getTableClass("CFF "), ttLib.getTableClass("CFF2")), "cff"
+)
+def visit(visitor, obj, attr, cff):
+    cff.desubroutinize()
+    topDict = cff.topDictIndex[0]
+    varStore = getattr(topDict, "VarStore", None)
+    getNumRegions = varStore.getNumRegions if varStore is not None else None
+    privates = set()
+    for fontname in cff.keys():
+        font = cff[fontname]
+        cs = font.CharStrings
+        for g in font.charset:
+            c, _ = cs.getItemAndSelector(g)
+            privates.add(c.private)
+
+            commands = cffSpecializer.programToCommands(
+                c.program, getNumRegions=getNumRegions
+            )
+            for op, args in commands:
+                if op == "vsindex":
+                    continue
+                _cff_scale(visitor, args)
+            c.program[:] = cffSpecializer.commandsToProgram(commands)
+
+        # Annoying business of scaling numbers that do not matter whatsoever
+
+        for attr in (
+            "UnderlinePosition",
+            "UnderlineThickness",
+            "FontBBox",
+            "StrokeWidth",
+        ):
+            value = getattr(topDict, attr, None)
+            if value is None:
+                continue
+            if isinstance(value, list):
+                _cff_scale(visitor, value)
+            else:
+                setattr(topDict, attr, visitor.scale(value))
+
+        for i in range(6):
+            topDict.FontMatrix[i] /= visitor.scaleFactor
+
+        for private in privates:
+            for attr in (
+                "BlueValues",
+                "OtherBlues",
+                "FamilyBlues",
+                "FamilyOtherBlues",
+                # "BlueScale",
+                # "BlueShift",
+                # "BlueFuzz",
+                "StdHW",
+                "StdVW",
+                "StemSnapH",
+                "StemSnapV",
+                "defaultWidthX",
+                "nominalWidthX",
+            ):
+                value = getattr(private, attr, None)
+                if value is None:
+                    continue
+                if isinstance(value, list):
+                    _cff_scale(visitor, value)
+                else:
+                    setattr(private, attr, visitor.scale(value))
+
+
+# ItemVariationStore
+
+
+@ScalerVisitor.register(otTables.VarData)
+def visit(visitor, varData):
+    for item in varData.Item:
+        for i, v in enumerate(item):
+            item[i] = visitor.scale(v)
+    varData.calculateNumShorts()
+
+
+# COLRv1
+
+
+def _setup_scale_paint(paint, scale):
+    if -2 <= scale <= 2 - (1 >> 14):
+        paint.Format = otTables.PaintFormat.PaintScaleUniform
+        paint.scale = scale
+        return
+
+    transform = otTables.Affine2x3()
+    transform.populateDefaults()
+    transform.xy = transform.yx = transform.dx = transform.dy = 0
+    transform.xx = transform.yy = scale
+
+    paint.Format = otTables.PaintFormat.PaintTransform
+    paint.Transform = transform
+
+
+@ScalerVisitor.register(otTables.BaseGlyphPaintRecord)
+def visit(visitor, record):
+    oldPaint = record.Paint
+
+    scale = otTables.Paint()
+    _setup_scale_paint(scale, visitor.scaleFactor)
+    scale.Paint = oldPaint
+
+    record.Paint = scale
+
+    return True
+
+
+@ScalerVisitor.register(otTables.Paint)
+def visit(visitor, paint):
+    if paint.Format != otTables.PaintFormat.PaintGlyph:
+        return True
+
+    newPaint = otTables.Paint()
+    newPaint.Format = paint.Format
+    newPaint.Paint = paint.Paint
+    newPaint.Glyph = paint.Glyph
+    del paint.Paint
+    del paint.Glyph
+
+    _setup_scale_paint(paint, 1 / visitor.scaleFactor)
+    paint.Paint = newPaint
+
+    visitor.visit(newPaint.Paint)
+
+    return False
+
+
+def scale_upem(font, new_upem):
+    """Change the units-per-EM of font to the new value."""
+    upem = font["head"].unitsPerEm
+    visitor = ScalerVisitor(new_upem / upem)
+    visitor.visit(font)
+
+
+def main(args=None):
+    """Change the units-per-EM of fonts"""
+
+    if args is None:
+        import sys
+
+        args = sys.argv[1:]
+
+    from fontTools.ttLib import TTFont
+    from fontTools.misc.cliTools import makeOutputFileName
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        "fonttools ttLib.scaleUpem", description="Change the units-per-EM of fonts"
+    )
+    parser.add_argument("font", metavar="font", help="Font file.")
+    parser.add_argument(
+        "new_upem", metavar="new-upem", help="New units-per-EM integer value."
+    )
+    parser.add_argument(
+        "--output-file", metavar="path", default=None, help="Output file."
+    )
+
+    options = parser.parse_args(args)
+
+    font = TTFont(options.font)
+    new_upem = int(options.new_upem)
+    output_file = (
+        options.output_file
+        if options.output_file is not None
+        else makeOutputFileName(options.font, overWrite=True, suffix="-scaled")
+    )
+
+    scale_upem(font, new_upem)
+
+    print("Writing %s" % output_file)
+    font.save(output_file)
+
+
+if __name__ == "__main__":
+    import sys
+
+    sys.exit(main())

.venv/lib/python3.12/site-packages/fontTools/ttLib/sfnt.py

@@ -0,0 +1,708 @@
+"""ttLib/sfnt.py -- low-level module to deal with the sfnt file format.
+
+Defines two public classes:
+
+- SFNTReader
+- SFNTWriter
+
+(Normally you don't have to use these classes explicitly; they are
+used automatically by ttLib.TTFont.)
+
+The reading and writing of sfnt files is separated in two distinct
+classes, since whenever the number of tables changes or whenever
+a table's length changes you need to rewrite the whole file anyway.
+"""
+
+from __future__ import annotations
+
+from collections.abc import KeysView
+from io import BytesIO
+from types import SimpleNamespace
+from fontTools.misc.textTools import Tag
+from fontTools.misc import sstruct
+from fontTools.ttLib import TTLibError, TTLibFileIsCollectionError
+import struct
+from collections import OrderedDict
+import logging
+
+log = logging.getLogger(__name__)
+
+
+class SFNTReader(object):
+    def __new__(cls, *args, **kwargs):
+        """Return an instance of the SFNTReader sub-class which is compatible
+        with the input file type.
+        """
+        if args and cls is SFNTReader:
+            infile = args[0]
+            infile.seek(0)
+            sfntVersion = Tag(infile.read(4))
+            infile.seek(0)
+            if sfntVersion == "wOF2":
+                # return new WOFF2Reader object
+                from fontTools.ttLib.woff2 import WOFF2Reader
+
+                return object.__new__(WOFF2Reader)
+        # return default object
+        return object.__new__(cls)
+
+    def __init__(self, file, checkChecksums=0, fontNumber=-1):
+        self.file = file
+        self.checkChecksums = checkChecksums
+
+        self.flavor = None
+        self.flavorData = None
+        self.DirectoryEntry = SFNTDirectoryEntry
+        self.file.seek(0)
+        self.sfntVersion = self.file.read(4)
+        self.file.seek(0)
+        if self.sfntVersion == b"ttcf":
+            header = readTTCHeader(self.file)
+            numFonts = header.numFonts
+            if not 0 <= fontNumber < numFonts:
+                raise TTLibFileIsCollectionError(
+                    "specify a font number between 0 and %d (inclusive)"
+                    % (numFonts - 1)
+                )
+            self.numFonts = numFonts
+            self.file.seek(header.offsetTable[fontNumber])
+            data = self.file.read(sfntDirectorySize)
+            if len(data) != sfntDirectorySize:
+                raise TTLibError("Not a Font Collection (not enough data)")
+            sstruct.unpack(sfntDirectoryFormat, data, self)
+        elif self.sfntVersion == b"wOFF":
+            self.flavor = "woff"
+            self.DirectoryEntry = WOFFDirectoryEntry
+            data = self.file.read(woffDirectorySize)
+            if len(data) != woffDirectorySize:
+                raise TTLibError("Not a WOFF font (not enough data)")
+            sstruct.unpack(woffDirectoryFormat, data, self)
+        else:
+            data = self.file.read(sfntDirectorySize)
+            if len(data) != sfntDirectorySize:
+                raise TTLibError("Not a TrueType or OpenType font (not enough data)")
+            sstruct.unpack(sfntDirectoryFormat, data, self)
+        self.sfntVersion = Tag(self.sfntVersion)
+
+        if self.sfntVersion not in ("\x00\x01\x00\x00", "OTTO", "true"):
+            raise TTLibError("Not a TrueType or OpenType font (bad sfntVersion)")
+        tables: dict[Tag, DirectoryEntry] = {}
+        for i in range(self.numTables):
+            entry = self.DirectoryEntry()
+            entry.fromFile(self.file)
+            tag = Tag(entry.tag)
+            tables[tag] = entry
+        self.tables = OrderedDict(sorted(tables.items(), key=lambda i: i[1].offset))
+
+        # Load flavor data if any
+        if self.flavor == "woff":
+            self.flavorData = WOFFFlavorData(self)
+
+    def has_key(self, tag: str | bytes) -> bool:
+        return tag in self.tables
+
+    __contains__ = has_key
+
+    def keys(self) -> KeysView[Tag]:
+        return self.tables.keys()
+
+    def __getitem__(self, tag: str | bytes) -> bytes:
+        """Fetch the raw table data."""
+        entry = self.tables[Tag(tag)]
+        data = entry.loadData(self.file)
+        if self.checkChecksums:
+            if tag == "head":
+                # Beh: we have to special-case the 'head' table.
+                checksum = calcChecksum(data[:8] + b"\0\0\0\0" + data[12:])
+            else:
+                checksum = calcChecksum(data)
+            if self.checkChecksums > 1:
+                # Be obnoxious, and barf when it's wrong
+                assert checksum == entry.checkSum, "bad checksum for '%s' table" % tag
+            elif checksum != entry.checkSum:
+                # Be friendly, and just log a warning.
+                log.warning("bad checksum for '%s' table", tag)
+        return data
+
+    def __delitem__(self, tag: str | bytes) -> None:
+        del self.tables[Tag(tag)]
+
+    def close(self) -> None:
+        self.file.close()
+
+    # We define custom __getstate__ and __setstate__ to make SFNTReader pickle-able
+    # and deepcopy-able. When a TTFont is loaded as lazy=True, SFNTReader holds a
+    # reference to an external file object which is not pickleable. So in __getstate__
+    # we store the file name and current position, and in __setstate__ we reopen the
+    # same named file after unpickling.
+
+    def __getstate__(self):
+        if isinstance(self.file, BytesIO):
+            # BytesIO is already pickleable, return the state unmodified
+            return self.__dict__
+
+        # remove unpickleable file attribute, and only store its name and pos
+        state = self.__dict__.copy()
+        del state["file"]
+        state["_filename"] = self.file.name
+        state["_filepos"] = self.file.tell()
+        return state
+
+    def __setstate__(self, state):
+        if "file" not in state:
+            self.file = open(state.pop("_filename"), "rb")
+            self.file.seek(state.pop("_filepos"))
+        self.__dict__.update(state)
+
+
+# default compression level for WOFF 1.0 tables and metadata
+ZLIB_COMPRESSION_LEVEL = 6
+
+# if set to True, use zopfli instead of zlib for compressing WOFF 1.0.
+# The Python bindings are available at https://pypi.python.org/pypi/zopfli
+USE_ZOPFLI = False
+
+# mapping between zlib's compression levels and zopfli's 'numiterations'.
+# Use lower values for files over several MB in size or it will be too slow
+ZOPFLI_LEVELS = {
+    # 0: 0,  # can't do 0 iterations...
+    1: 1,
+    2: 3,
+    3: 5,
+    4: 8,
+    5: 10,
+    6: 15,
+    7: 25,
+    8: 50,
+    9: 100,
+}
+
+
+def compress(data, level=ZLIB_COMPRESSION_LEVEL):
+    """Compress 'data' to Zlib format. If 'USE_ZOPFLI' variable is True,
+    zopfli is used instead of the zlib module.
+    The compression 'level' must be between 0 and 9. 1 gives best speed,
+    9 gives best compression (0 gives no compression at all).
+    The default value is a compromise between speed and compression (6).
+    """
+    if not (0 <= level <= 9):
+        raise ValueError("Bad compression level: %s" % level)
+    if not USE_ZOPFLI or level == 0:
+        from zlib import compress
+
+        return compress(data, level)
+    else:
+        from zopfli.zlib import compress
+
+        return compress(data, numiterations=ZOPFLI_LEVELS[level])
+
+
+class SFNTWriter(object):
+    def __new__(cls, *args, **kwargs):
+        """Return an instance of the SFNTWriter sub-class which is compatible
+        with the specified 'flavor'.
+        """
+        flavor = None
+        if kwargs and "flavor" in kwargs:
+            flavor = kwargs["flavor"]
+        elif args and len(args) > 3:
+            flavor = args[3]
+        if cls is SFNTWriter:
+            if flavor == "woff2":
+                # return new WOFF2Writer object
+                from fontTools.ttLib.woff2 import WOFF2Writer
+
+                return object.__new__(WOFF2Writer)
+        # return default object
+        return object.__new__(cls)
+
+    def __init__(
+        self,
+        file,
+        numTables,
+        sfntVersion="\000\001\000\000",
+        flavor=None,
+        flavorData=None,
+    ):
+        self.file = file
+        self.numTables = numTables
+        self.sfntVersion = Tag(sfntVersion)
+        self.flavor = flavor
+        self.flavorData = flavorData
+
+        if self.flavor == "woff":
+            self.directoryFormat = woffDirectoryFormat
+            self.directorySize = woffDirectorySize
+            self.DirectoryEntry = WOFFDirectoryEntry
+
+            self.signature = "wOFF"
+
+            # to calculate WOFF checksum adjustment, we also need the original SFNT offsets
+            self.origNextTableOffset = (
+                sfntDirectorySize + numTables * sfntDirectoryEntrySize
+            )
+        else:
+            assert not self.flavor, "Unknown flavor '%s'" % self.flavor
+            self.directoryFormat = sfntDirectoryFormat
+            self.directorySize = sfntDirectorySize
+            self.DirectoryEntry = SFNTDirectoryEntry
+
+            from fontTools.ttLib import getSearchRange
+
+            self.searchRange, self.entrySelector, self.rangeShift = getSearchRange(
+                numTables, 16
+            )
+
+        self.directoryOffset = self.file.tell()
+        self.nextTableOffset = (
+            self.directoryOffset
+            + self.directorySize
+            + numTables * self.DirectoryEntry.formatSize
+        )
+        # clear out directory area
+        self.file.seek(self.nextTableOffset)
+        # make sure we're actually where we want to be. (old cStringIO bug)
+        self.file.write(b"\0" * (self.nextTableOffset - self.file.tell()))
+        self.tables = OrderedDict()
+
+    def setEntry(self, tag, entry):
+        if tag in self.tables:
+            raise TTLibError("cannot rewrite '%s' table" % tag)
+
+        self.tables[tag] = entry
+
+    def __setitem__(self, tag, data):
+        """Write raw table data to disk."""
+        if tag in self.tables:
+            raise TTLibError("cannot rewrite '%s' table" % tag)
+
+        entry = self.DirectoryEntry()
+        entry.tag = tag
+        entry.offset = self.nextTableOffset
+        if tag == "head":
+            entry.checkSum = calcChecksum(data[:8] + b"\0\0\0\0" + data[12:])
+            self.headTable = data
+            entry.uncompressed = True
+        else:
+            entry.checkSum = calcChecksum(data)
+        entry.saveData(self.file, data)
+
+        if self.flavor == "woff":
+            entry.origOffset = self.origNextTableOffset
+            self.origNextTableOffset += (entry.origLength + 3) & ~3
+
+        self.nextTableOffset = self.nextTableOffset + ((entry.length + 3) & ~3)
+        # Add NUL bytes to pad the table data to a 4-byte boundary.
+        # Don't depend on f.seek() as we need to add the padding even if no
+        # subsequent write follows (seek is lazy), ie. after the final table
+        # in the font.
+        self.file.write(b"\0" * (self.nextTableOffset - self.file.tell()))
+        assert self.nextTableOffset == self.file.tell()
+
+        self.setEntry(tag, entry)
+
+    def __getitem__(self, tag):
+        return self.tables[tag]
+
+    def close(self):
+        """All tables must have been written to disk. Now write the
+        directory.
+        """
+        tables = sorted(self.tables.items())
+        if len(tables) != self.numTables:
+            raise TTLibError(
+                "wrong number of tables; expected %d, found %d"
+                % (self.numTables, len(tables))
+            )
+
+        if self.flavor == "woff":
+            self.signature = b"wOFF"
+            self.reserved = 0
+
+            self.totalSfntSize = 12
+            self.totalSfntSize += 16 * len(tables)
+            for tag, entry in tables:
+                self.totalSfntSize += (entry.origLength + 3) & ~3
+
+            data = self.flavorData if self.flavorData else WOFFFlavorData()
+            if data.majorVersion is not None and data.minorVersion is not None:
+                self.majorVersion = data.majorVersion
+                self.minorVersion = data.minorVersion
+            else:
+                if hasattr(self, "headTable"):
+                    self.majorVersion, self.minorVersion = struct.unpack(
+                        ">HH", self.headTable[4:8]
+                    )
+                else:
+                    self.majorVersion = self.minorVersion = 0
+            if data.metaData:
+                self.metaOrigLength = len(data.metaData)
+                self.file.seek(0, 2)
+                self.metaOffset = self.file.tell()
+                compressedMetaData = compress(data.metaData)
+                self.metaLength = len(compressedMetaData)
+                self.file.write(compressedMetaData)
+            else:
+                self.metaOffset = self.metaLength = self.metaOrigLength = 0
+            if data.privData:
+                self.file.seek(0, 2)
+                off = self.file.tell()
+                paddedOff = (off + 3) & ~3
+                self.file.write(b"\0" * (paddedOff - off))
+                self.privOffset = self.file.tell()
+                self.privLength = len(data.privData)
+                self.file.write(data.privData)
+            else:
+                self.privOffset = self.privLength = 0
+
+            self.file.seek(0, 2)
+            self.length = self.file.tell()
+
+        else:
+            assert not self.flavor, "Unknown flavor '%s'" % self.flavor
+            pass
+
+        directory = sstruct.pack(self.directoryFormat, self)
+
+        self.file.seek(self.directoryOffset + self.directorySize)
+        seenHead = 0
+        for tag, entry in tables:
+            if tag == "head":
+                seenHead = 1
+            directory = directory + entry.toString()
+        if seenHead:
+            self.writeMasterChecksum(directory)
+        self.file.seek(self.directoryOffset)
+        self.file.write(directory)
+
+    def _calcMasterChecksum(self, directory):
+        # calculate checkSumAdjustment
+        checksums = []
+        for tag in self.tables.keys():
+            checksums.append(self.tables[tag].checkSum)
+
+        if self.DirectoryEntry != SFNTDirectoryEntry:
+            # Create a SFNT directory for checksum calculation purposes
+            from fontTools.ttLib import getSearchRange
+
+            self.searchRange, self.entrySelector, self.rangeShift = getSearchRange(
+                self.numTables, 16
+            )
+            directory = sstruct.pack(sfntDirectoryFormat, self)
+            tables = sorted(self.tables.items())
+            for tag, entry in tables:
+                sfntEntry = SFNTDirectoryEntry()
+                sfntEntry.tag = entry.tag
+                sfntEntry.checkSum = entry.checkSum
+                sfntEntry.offset = entry.origOffset
+                sfntEntry.length = entry.origLength
+                directory = directory + sfntEntry.toString()
+
+        directory_end = sfntDirectorySize + len(self.tables) * sfntDirectoryEntrySize
+        assert directory_end == len(directory)
+
+        checksums.append(calcChecksum(directory))
+        checksum = sum(checksums) & 0xFFFFFFFF
+        # BiboAfba!
+        checksumadjustment = (0xB1B0AFBA - checksum) & 0xFFFFFFFF
+        return checksumadjustment
+
+    def writeMasterChecksum(self, directory):
+        checksumadjustment = self._calcMasterChecksum(directory)
+        # write the checksum to the file
+        self.file.seek(self.tables["head"].offset + 8)
+        self.file.write(struct.pack(">L", checksumadjustment))
+
+    def reordersTables(self):
+        return False
+
+
+# -- sfnt directory helpers and cruft
+
+ttcHeaderFormat = """
+		> # big endian
+		TTCTag:                  4s # "ttcf"
+		Version:                 L  # 0x00010000 or 0x00020000
+		numFonts:                L  # number of fonts
+		# OffsetTable[numFonts]: L  # array with offsets from beginning of file
+		# ulDsigTag:             L  # version 2.0 only
+		# ulDsigLength:          L  # version 2.0 only
+		# ulDsigOffset:          L  # version 2.0 only
+"""
+
+ttcHeaderSize = sstruct.calcsize(ttcHeaderFormat)
+
+ttcTailFormatV2 = """
+		> # big endian
+		ulDsigTag:               L  # version 2.0 only
+		ulDsigLength:            L  # version 2.0 only
+		ulDsigOffset:            L  # version 2.0 only
+"""
+
+ttcTailSizeV2 = sstruct.calcsize(ttcTailFormatV2)
+
+TTC_V1 = 0x00010000
+TTC_V2 = 0x00020000
+
+sfntDirectoryFormat = """
+		> # big endian
+		sfntVersion:    4s
+		numTables:      H    # number of tables
+		searchRange:    H    # (max2 <= numTables)*16
+		entrySelector:  H    # log2(max2 <= numTables)
+		rangeShift:     H    # numTables*16-searchRange
+"""
+
+sfntDirectorySize = sstruct.calcsize(sfntDirectoryFormat)
+
+sfntDirectoryEntryFormat = """
+		> # big endian
+		tag:            4s
+		checkSum:       L
+		offset:         L
+		length:         L
+"""
+
+sfntDirectoryEntrySize = sstruct.calcsize(sfntDirectoryEntryFormat)
+
+woffDirectoryFormat = """
+		> # big endian
+		signature:      4s   # "wOFF"
+		sfntVersion:    4s
+		length:         L    # total woff file size
+		numTables:      H    # number of tables
+		reserved:       H    # set to 0
+		totalSfntSize:  L    # uncompressed size
+		majorVersion:   H    # major version of WOFF file
+		minorVersion:   H    # minor version of WOFF file
+		metaOffset:     L    # offset to metadata block
+		metaLength:     L    # length of compressed metadata
+		metaOrigLength: L    # length of uncompressed metadata
+		privOffset:     L    # offset to private data block
+		privLength:     L    # length of private data block
+"""
+
+woffDirectorySize = sstruct.calcsize(woffDirectoryFormat)
+
+woffDirectoryEntryFormat = """
+		> # big endian
+		tag:            4s
+		offset:         L
+		length:         L    # compressed length
+		origLength:     L    # original length
+		checkSum:       L    # original checksum
+"""
+
+woffDirectoryEntrySize = sstruct.calcsize(woffDirectoryEntryFormat)
+
+
+class DirectoryEntry(object):
+    def __init__(self):
+        self.uncompressed = False  # if True, always embed entry raw
+
+    def fromFile(self, file):
+        data = file.read(self.formatSize)
+        if len(data) != self.formatSize:
+            # A file truncated inside the table directory, or one whose
+            # numTables is corrupt, would otherwise fail with a struct.error.
+            raise TTLibError(
+                "unexpected end of table directory: expected %d bytes but got %d"
+                % (self.formatSize, len(data))
+            )
+        sstruct.unpack(self.format, data, self)
+
+    def fromString(self, str):
+        sstruct.unpack(self.format, str, self)
+
+    def toString(self):
+        return sstruct.pack(self.format, self)
+
+    def __repr__(self):
+        if hasattr(self, "tag"):
+            return "<%s '%s' at %x>" % (self.__class__.__name__, self.tag, id(self))
+        else:
+            return "<%s at %x>" % (self.__class__.__name__, id(self))
+
+    def loadData(self, file):
+        file.seek(self.offset)
+        data = file.read(self.length)
+        if len(data) != self.length:
+            # A corrupt or truncated table directory entry can point past the
+            # end of the file; raise a TTLibError instead of a bare assertion
+            # (which is also silently skipped under `python -O`).
+            tag = getattr(self, "tag", None)
+            raise TTLibError(
+                "unexpected end of '%s' table data: expected %d bytes but got "
+                "%d at offset %d"
+                % (
+                    Tag(tag) if tag is not None else "????",
+                    self.length,
+                    len(data),
+                    self.offset,
+                )
+            )
+        if hasattr(self.__class__, "decodeData"):
+            data = self.decodeData(data)
+        return data
+
+    def saveData(self, file, data):
+        if hasattr(self.__class__, "encodeData"):
+            data = self.encodeData(data)
+        self.length = len(data)
+        file.seek(self.offset)
+        file.write(data)
+
+    def decodeData(self, rawData):
+        return rawData
+
+    def encodeData(self, data):
+        return data
+
+
+class SFNTDirectoryEntry(DirectoryEntry):
+    format = sfntDirectoryEntryFormat
+    formatSize = sfntDirectoryEntrySize
+
+
+class WOFFDirectoryEntry(DirectoryEntry):
+    format = woffDirectoryEntryFormat
+    formatSize = woffDirectoryEntrySize
+
+    def __init__(self):
+        super(WOFFDirectoryEntry, self).__init__()
+        # With fonttools<=3.1.2, the only way to set a different zlib
+        # compression level for WOFF directory entries was to set the class
+        # attribute 'zlibCompressionLevel'. This is now replaced by a globally
+        # defined `ZLIB_COMPRESSION_LEVEL`, which is also applied when
+        # compressing the metadata. For backward compatibility, we still
+        # use the class attribute if it was already set.
+        if not hasattr(WOFFDirectoryEntry, "zlibCompressionLevel"):
+            self.zlibCompressionLevel = ZLIB_COMPRESSION_LEVEL
+
+    def decodeData(self, rawData):
+        import zlib
+
+        if self.length == self.origLength:
+            data = rawData
+        else:
+            assert self.length < self.origLength
+            data = zlib.decompress(rawData)
+            assert len(data) == self.origLength
+        return data
+
+    def encodeData(self, data):
+        self.origLength = len(data)
+        if not self.uncompressed:
+            compressedData = compress(data, self.zlibCompressionLevel)
+        if self.uncompressed or len(compressedData) >= self.origLength:
+            # Encode uncompressed
+            rawData = data
+            self.length = self.origLength
+        else:
+            rawData = compressedData
+            self.length = len(rawData)
+        return rawData
+
+
+class WOFFFlavorData:
+    Flavor = "woff"
+
+    def __init__(self, reader=None):
+        self.majorVersion = None
+        self.minorVersion = None
+        self.metaData = None
+        self.privData = None
+        if reader:
+            self.majorVersion = reader.majorVersion
+            self.minorVersion = reader.minorVersion
+            if reader.metaLength:
+                reader.file.seek(reader.metaOffset)
+                rawData = reader.file.read(reader.metaLength)
+                assert len(rawData) == reader.metaLength
+                data = self._decompress(rawData)
+                assert len(data) == reader.metaOrigLength
+                self.metaData = data
+            if reader.privLength:
+                reader.file.seek(reader.privOffset)
+                data = reader.file.read(reader.privLength)
+                assert len(data) == reader.privLength
+                self.privData = data
+
+    def _decompress(self, rawData):
+        import zlib
+
+        return zlib.decompress(rawData)
+
+
+def calcChecksum(data):
+    """Calculate the checksum for an arbitrary block of data.
+
+    If the data length is not a multiple of four, it assumes
+    it is to be padded with null byte.
+
+            >>> print(calcChecksum(b"abcd"))
+            1633837924
+            >>> print(calcChecksum(b"abcdxyz"))
+            3655064932
+    """
+    remainder = len(data) % 4
+    if remainder:
+        data += b"\0" * (4 - remainder)
+    value = 0
+    blockSize = 4096
+    assert blockSize % 4 == 0
+    for i in range(0, len(data), blockSize):
+        block = data[i : i + blockSize]
+        longs = struct.unpack(">%dL" % (len(block) // 4), block)
+        value = (value + sum(longs)) & 0xFFFFFFFF
+    return value
+
+
+def readTTCHeader(file):
+    file.seek(0)
+    data = file.read(ttcHeaderSize)
+    if len(data) != ttcHeaderSize:
+        raise TTLibError("Not a Font Collection (not enough data)")
+    self = SimpleNamespace()
+    sstruct.unpack(ttcHeaderFormat, data, self)
+    if self.TTCTag != "ttcf":
+        raise TTLibError("Not a Font Collection")
+    assert self.Version in (TTC_V1, TTC_V2), (
+        "unrecognized TTC version 0x%08x" % self.Version
+    )
+    self.offsetTable = struct.unpack(
+        ">%dL" % self.numFonts, file.read(self.numFonts * 4)
+    )
+    if self.Version == TTC_V2:
+        # Unpack additional DSIG fields
+        data = file.read(ttcTailSizeV2)
+        if len(data) != ttcTailSizeV2:
+            raise TTLibError("Not a Font Collection (not enough data)")
+        sstruct.unpack(ttcTailFormatV2, data, self)
+    return self
+
+
+def writeTTCHeader(file, numFonts, version=TTC_V1):
+    self = SimpleNamespace()
+    self.TTCTag = "ttcf"
+    self.Version = version
+    assert self.Version in (TTC_V1, TTC_V2), (
+        "unrecognized TTC version 0x%08x" % self.Version
+    )
+    self.numFonts = numFonts
+    file.seek(0)
+    file.write(sstruct.pack(ttcHeaderFormat, self))
+    offset = file.tell()
+    file.write(struct.pack(">%dL" % self.numFonts, *([0] * self.numFonts)))
+    if version == TTC_V2:
+        # write empty ulDsigTag, ulDsigLength, ulDsigOffset
+        # Actual values are be written in TTCollection.save()
+        file.write(struct.pack(">3L", 0, 0, 0))
+    return offset
+
+
+if __name__ == "__main__":
+    import sys
+    import doctest
+
+    sys.exit(doctest.testmod().failed)

.venv/lib/python3.12/site-packages/fontTools/ttLib/standardGlyphOrder.py

@@ -0,0 +1,271 @@
+#
+# 'post' table formats 1.0 and 2.0 rely on this list of "standard"
+# glyphs.
+#
+# My list is correct according to the Apple documentation for the 'post'  table:
+# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6post.html
+# (However, it seems that TTFdump (from MS) and FontLab disagree, at
+# least with respect to the last glyph, which they list as 'dslash'
+# instead of 'dcroat'.)
+#
+
+standardGlyphOrder = [
+    ".notdef",  # 0
+    ".null",  # 1
+    "nonmarkingreturn",  # 2
+    "space",  # 3
+    "exclam",  # 4
+    "quotedbl",  # 5
+    "numbersign",  # 6
+    "dollar",  # 7
+    "percent",  # 8
+    "ampersand",  # 9
+    "quotesingle",  # 10
+    "parenleft",  # 11
+    "parenright",  # 12
+    "asterisk",  # 13
+    "plus",  # 14
+    "comma",  # 15
+    "hyphen",  # 16
+    "period",  # 17
+    "slash",  # 18
+    "zero",  # 19
+    "one",  # 20
+    "two",  # 21
+    "three",  # 22
+    "four",  # 23
+    "five",  # 24
+    "six",  # 25
+    "seven",  # 26
+    "eight",  # 27
+    "nine",  # 28
+    "colon",  # 29
+    "semicolon",  # 30
+    "less",  # 31
+    "equal",  # 32
+    "greater",  # 33
+    "question",  # 34
+    "at",  # 35
+    "A",  # 36
+    "B",  # 37
+    "C",  # 38
+    "D",  # 39
+    "E",  # 40
+    "F",  # 41
+    "G",  # 42
+    "H",  # 43
+    "I",  # 44
+    "J",  # 45
+    "K",  # 46
+    "L",  # 47
+    "M",  # 48
+    "N",  # 49
+    "O",  # 50
+    "P",  # 51
+    "Q",  # 52
+    "R",  # 53
+    "S",  # 54
+    "T",  # 55
+    "U",  # 56
+    "V",  # 57
+    "W",  # 58
+    "X",  # 59
+    "Y",  # 60
+    "Z",  # 61
+    "bracketleft",  # 62
+    "backslash",  # 63
+    "bracketright",  # 64
+    "asciicircum",  # 65
+    "underscore",  # 66
+    "grave",  # 67
+    "a",  # 68
+    "b",  # 69
+    "c",  # 70
+    "d",  # 71
+    "e",  # 72
+    "f",  # 73
+    "g",  # 74
+    "h",  # 75
+    "i",  # 76
+    "j",  # 77
+    "k",  # 78
+    "l",  # 79
+    "m",  # 80
+    "n",  # 81
+    "o",  # 82
+    "p",  # 83
+    "q",  # 84
+    "r",  # 85
+    "s",  # 86
+    "t",  # 87
+    "u",  # 88
+    "v",  # 89
+    "w",  # 90
+    "x",  # 91
+    "y",  # 92
+    "z",  # 93
+    "braceleft",  # 94
+    "bar",  # 95
+    "braceright",  # 96
+    "asciitilde",  # 97
+    "Adieresis",  # 98
+    "Aring",  # 99
+    "Ccedilla",  # 100
+    "Eacute",  # 101
+    "Ntilde",  # 102
+    "Odieresis",  # 103
+    "Udieresis",  # 104
+    "aacute",  # 105
+    "agrave",  # 106
+    "acircumflex",  # 107
+    "adieresis",  # 108
+    "atilde",  # 109
+    "aring",  # 110
+    "ccedilla",  # 111
+    "eacute",  # 112
+    "egrave",  # 113
+    "ecircumflex",  # 114
+    "edieresis",  # 115
+    "iacute",  # 116
+    "igrave",  # 117
+    "icircumflex",  # 118
+    "idieresis",  # 119
+    "ntilde",  # 120
+    "oacute",  # 121
+    "ograve",  # 122
+    "ocircumflex",  # 123
+    "odieresis",  # 124
+    "otilde",  # 125
+    "uacute",  # 126
+    "ugrave",  # 127
+    "ucircumflex",  # 128
+    "udieresis",  # 129
+    "dagger",  # 130
+    "degree",  # 131
+    "cent",  # 132
+    "sterling",  # 133
+    "section",  # 134
+    "bullet",  # 135
+    "paragraph",  # 136
+    "germandbls",  # 137
+    "registered",  # 138
+    "copyright",  # 139
+    "trademark",  # 140
+    "acute",  # 141
+    "dieresis",  # 142
+    "notequal",  # 143
+    "AE",  # 144
+    "Oslash",  # 145
+    "infinity",  # 146
+    "plusminus",  # 147
+    "lessequal",  # 148
+    "greaterequal",  # 149
+    "yen",  # 150
+    "mu",  # 151
+    "partialdiff",  # 152
+    "summation",  # 153
+    "product",  # 154
+    "pi",  # 155
+    "integral",  # 156
+    "ordfeminine",  # 157
+    "ordmasculine",  # 158
+    "Omega",  # 159
+    "ae",  # 160
+    "oslash",  # 161
+    "questiondown",  # 162
+    "exclamdown",  # 163
+    "logicalnot",  # 164
+    "radical",  # 165
+    "florin",  # 166
+    "approxequal",  # 167
+    "Delta",  # 168
+    "guillemotleft",  # 169
+    "guillemotright",  # 170
+    "ellipsis",  # 171
+    "nonbreakingspace",  # 172
+    "Agrave",  # 173
+    "Atilde",  # 174
+    "Otilde",  # 175
+    "OE",  # 176
+    "oe",  # 177
+    "endash",  # 178
+    "emdash",  # 179
+    "quotedblleft",  # 180
+    "quotedblright",  # 181
+    "quoteleft",  # 182
+    "quoteright",  # 183
+    "divide",  # 184
+    "lozenge",  # 185
+    "ydieresis",  # 186
+    "Ydieresis",  # 187
+    "fraction",  # 188
+    "currency",  # 189
+    "guilsinglleft",  # 190
+    "guilsinglright",  # 191
+    "fi",  # 192
+    "fl",  # 193
+    "daggerdbl",  # 194
+    "periodcentered",  # 195
+    "quotesinglbase",  # 196
+    "quotedblbase",  # 197
+    "perthousand",  # 198
+    "Acircumflex",  # 199
+    "Ecircumflex",  # 200
+    "Aacute",  # 201
+    "Edieresis",  # 202
+    "Egrave",  # 203
+    "Iacute",  # 204
+    "Icircumflex",  # 205
+    "Idieresis",  # 206
+    "Igrave",  # 207
+    "Oacute",  # 208
+    "Ocircumflex",  # 209
+    "apple",  # 210
+    "Ograve",  # 211
+    "Uacute",  # 212
+    "Ucircumflex",  # 213
+    "Ugrave",  # 214
+    "dotlessi",  # 215
+    "circumflex",  # 216
+    "tilde",  # 217
+    "macron",  # 218
+    "breve",  # 219
+    "dotaccent",  # 220
+    "ring",  # 221
+    "cedilla",  # 222
+    "hungarumlaut",  # 223
+    "ogonek",  # 224
+    "caron",  # 225
+    "Lslash",  # 226
+    "lslash",  # 227
+    "Scaron",  # 228
+    "scaron",  # 229
+    "Zcaron",  # 230
+    "zcaron",  # 231
+    "brokenbar",  # 232
+    "Eth",  # 233
+    "eth",  # 234
+    "Yacute",  # 235
+    "yacute",  # 236
+    "Thorn",  # 237
+    "thorn",  # 238
+    "minus",  # 239
+    "multiply",  # 240
+    "onesuperior",  # 241
+    "twosuperior",  # 242
+    "threesuperior",  # 243
+    "onehalf",  # 244
+    "onequarter",  # 245
+    "threequarters",  # 246
+    "franc",  # 247
+    "Gbreve",  # 248
+    "gbreve",  # 249
+    "Idotaccent",  # 250
+    "Scedilla",  # 251
+    "scedilla",  # 252
+    "Cacute",  # 253
+    "cacute",  # 254
+    "Ccaron",  # 255
+    "ccaron",  # 256
+    "dcroat",  # 257
+]

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/B_A_S_E_.py

@@ -0,0 +1,14 @@
+from .otBase import BaseTTXConverter
+
+
+class table_B_A_S_E_(BaseTTXConverter):
+    """Baseline table
+
+    The ``BASE`` table contains information needed to align glyphs in
+    different scripts, from different fonts, or at different sizes
+    within the same line of text.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/base
+    """
+
+    pass

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/BitmapGlyphMetrics.py

@@ -0,0 +1,63 @@
+# Since bitmap glyph metrics are shared between EBLC and EBDT
+# this class gets its own python file.
+from fontTools.misc import sstruct
+from fontTools.misc.textTools import safeEval
+import logging
+
+log = logging.getLogger(__name__)
+
+bigGlyphMetricsFormat = """
+  > # big endian
+  height:       B
+  width:        B
+  horiBearingX: b
+  horiBearingY: b
+  horiAdvance:  B
+  vertBearingX: b
+  vertBearingY: b
+  vertAdvance:  B
+"""
+
+smallGlyphMetricsFormat = """
+  > # big endian
+  height:   B
+  width:    B
+  BearingX: b
+  BearingY: b
+  Advance:  B
+"""
+
+
+class BitmapGlyphMetrics(object):
+    def toXML(self, writer, ttFont):
+        writer.begintag(self.__class__.__name__)
+        writer.newline()
+        for metricName in sstruct.getformat(self.__class__.binaryFormat)[1]:
+            writer.simpletag(metricName, value=getattr(self, metricName))
+            writer.newline()
+        writer.endtag(self.__class__.__name__)
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        metricNames = set(sstruct.getformat(self.__class__.binaryFormat)[1])
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            # Make sure this is a metric that is needed by GlyphMetrics.
+            if name in metricNames:
+                vars(self)[name] = safeEval(attrs["value"])
+            else:
+                log.warning(
+                    "unknown name '%s' being ignored in %s.",
+                    name,
+                    self.__class__.__name__,
+                )
+
+
+class BigGlyphMetrics(BitmapGlyphMetrics):
+    binaryFormat = bigGlyphMetricsFormat
+
+
+class SmallGlyphMetrics(BitmapGlyphMetrics):
+    binaryFormat = smallGlyphMetricsFormat

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_B_D_T_.py

@@ -0,0 +1,113 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Google Author(s): Matt Fontaine
+
+
+from fontTools.misc.textTools import bytesjoin
+from fontTools.misc import sstruct
+from . import E_B_D_T_
+from .BitmapGlyphMetrics import (
+    BigGlyphMetrics,
+    bigGlyphMetricsFormat,
+    SmallGlyphMetrics,
+    smallGlyphMetricsFormat,
+)
+from .E_B_D_T_ import (
+    BitmapGlyph,
+    BitmapPlusSmallMetricsMixin,
+    BitmapPlusBigMetricsMixin,
+)
+import struct
+
+
+class table_C_B_D_T_(E_B_D_T_.table_E_B_D_T_):
+    """Color Bitmap Data table
+
+    The ``CBDT`` table contains color bitmap data for glyphs. It must
+    be used in concert with the ``CBLC`` table.
+
+    It is backwards-compatible with the monochrome/grayscale ``EBDT`` table.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/cbdt
+    """
+
+    # Change the data locator table being referenced.
+    locatorName = "CBLC"
+
+    # Modify the format class accessor for color bitmap use.
+    def getImageFormatClass(self, imageFormat):
+        try:
+            return E_B_D_T_.table_E_B_D_T_.getImageFormatClass(self, imageFormat)
+        except KeyError:
+            return cbdt_bitmap_classes[imageFormat]
+
+
+# Helper method for removing export features not supported by color bitmaps.
+# Write data in the parent class will default to raw if an option is unsupported.
+def _removeUnsupportedForColor(dataFunctions):
+    dataFunctions = dict(dataFunctions)
+    del dataFunctions["row"]
+    return dataFunctions
+
+
+class ColorBitmapGlyph(BitmapGlyph):
+    fileExtension = ".png"
+    xmlDataFunctions = _removeUnsupportedForColor(BitmapGlyph.xmlDataFunctions)
+
+
+class cbdt_bitmap_format_17(BitmapPlusSmallMetricsMixin, ColorBitmapGlyph):
+    def decompile(self):
+        self.metrics = SmallGlyphMetrics()
+        dummy, data = sstruct.unpack2(smallGlyphMetricsFormat, self.data, self.metrics)
+        (dataLen,) = struct.unpack(">L", data[:4])
+        data = data[4:]
+
+        # For the image data cut it to the size specified by dataLen.
+        assert dataLen <= len(data), "Data overun in format 17"
+        self.imageData = data[:dataLen]
+
+    def compile(self, ttFont):
+        dataList = []
+        dataList.append(sstruct.pack(smallGlyphMetricsFormat, self.metrics))
+        dataList.append(struct.pack(">L", len(self.imageData)))
+        dataList.append(self.imageData)
+        return bytesjoin(dataList)
+
+
+class cbdt_bitmap_format_18(BitmapPlusBigMetricsMixin, ColorBitmapGlyph):
+    def decompile(self):
+        self.metrics = BigGlyphMetrics()
+        dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics)
+        (dataLen,) = struct.unpack(">L", data[:4])
+        data = data[4:]
+
+        # For the image data cut it to the size specified by dataLen.
+        assert dataLen <= len(data), "Data overun in format 18"
+        self.imageData = data[:dataLen]
+
+    def compile(self, ttFont):
+        dataList = []
+        dataList.append(sstruct.pack(bigGlyphMetricsFormat, self.metrics))
+        dataList.append(struct.pack(">L", len(self.imageData)))
+        dataList.append(self.imageData)
+        return bytesjoin(dataList)
+
+
+class cbdt_bitmap_format_19(ColorBitmapGlyph):
+    def decompile(self):
+        (dataLen,) = struct.unpack(">L", self.data[:4])
+        data = self.data[4:]
+
+        assert dataLen <= len(data), "Data overun in format 19"
+        self.imageData = data[:dataLen]
+
+    def compile(self, ttFont):
+        return struct.pack(">L", len(self.imageData)) + self.imageData
+
+
+# Dict for CBDT extended formats.
+cbdt_bitmap_classes = {
+    17: cbdt_bitmap_format_17,
+    18: cbdt_bitmap_format_18,
+    19: cbdt_bitmap_format_19,
+}

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_B_L_C_.py

@@ -0,0 +1,19 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Google Author(s): Matt Fontaine
+
+from . import E_B_L_C_
+
+
+class table_C_B_L_C_(E_B_L_C_.table_E_B_L_C_):
+    """Color Bitmap Location table
+
+    The ``CBLC`` table contains the locations of color bitmaps for glyphs. It must
+    be used in concert with the ``CBDT`` table.
+
+    It is backwards-compatible with the monochrome/grayscale ``EBLC`` table.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/cblc
+    """
+
+    dependencies = ["CBDT"]

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_F_F_.py

@@ -0,0 +1,61 @@
+from io import BytesIO
+from fontTools import cffLib
+from . import DefaultTable
+
+
+class table_C_F_F_(DefaultTable.DefaultTable):
+    """Compact Font Format table (version 1)
+
+    The ``CFF`` table embeds a CFF-formatted font. The CFF font format
+    predates OpenType and could be used as a standalone font file, but the
+    ``CFF`` table is also used to package CFF fonts into an OpenType
+    container.
+
+    .. note::
+       ``CFF`` has been succeeded by ``CFF2``, which eliminates much of
+       the redundancy incurred by embedding CFF version 1 in an OpenType
+       font.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/cff
+    """
+
+    def __init__(self, tag=None):
+        DefaultTable.DefaultTable.__init__(self, tag)
+        self.cff = cffLib.CFFFontSet()
+        self._gaveGlyphOrder = False
+
+    def decompile(self, data, otFont):
+        self.cff.decompile(BytesIO(data), otFont, isCFF2=False)
+        assert len(self.cff) == 1, "can't deal with multi-font CFF tables."
+
+    def compile(self, otFont):
+        f = BytesIO()
+        self.cff.compile(f, otFont, isCFF2=False)
+        return f.getvalue()
+
+    def haveGlyphNames(self):
+        if hasattr(self.cff[self.cff.fontNames[0]], "ROS"):
+            return False  # CID-keyed font
+        else:
+            return True
+
+    def getGlyphOrder(self):
+        if self._gaveGlyphOrder:
+            from fontTools import ttLib
+
+            raise ttLib.TTLibError("illegal use of getGlyphOrder()")
+        self._gaveGlyphOrder = True
+        return self.cff[self.cff.fontNames[0]].getGlyphOrder()
+
+    def setGlyphOrder(self, glyphOrder):
+        pass
+        # XXX
+        # self.cff[self.cff.fontNames[0]].setGlyphOrder(glyphOrder)
+
+    def toXML(self, writer, otFont):
+        self.cff.toXML(writer)
+
+    def fromXML(self, name, attrs, content, otFont):
+        if not hasattr(self, "cff"):
+            self.cff = cffLib.CFFFontSet()
+        self.cff.fromXML(name, attrs, content, otFont)

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_F_F__2.py

@@ -0,0 +1,26 @@
+from io import BytesIO
+from fontTools.ttLib.tables.C_F_F_ import table_C_F_F_
+
+
+class table_C_F_F__2(table_C_F_F_):
+    """Compact Font Format version 2 table
+
+    The ``CFF2`` table contains glyph data for a CFF2-flavored OpenType
+    font.
+
+    .. note::
+       ``CFF2`` is the successor to ``CFF``, and eliminates much of
+       the redundancy incurred by embedding CFF version 1 in an OpenType
+       font.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/cff2
+    """
+
+    def decompile(self, data, otFont):
+        self.cff.decompile(BytesIO(data), otFont, isCFF2=True)
+        assert len(self.cff) == 1, "can't deal with multi-font CFF tables."
+
+    def compile(self, otFont):
+        f = BytesIO()
+        self.cff.compile(f, otFont, isCFF2=True)
+        return f.getvalue()

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_O_L_R_.py

@@ -0,0 +1,165 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Google Author(s): Behdad Esfahbod
+
+from fontTools.misc.textTools import safeEval
+from . import DefaultTable
+
+
+class table_C_O_L_R_(DefaultTable.DefaultTable):
+    """Color table
+
+    The ``COLR`` table defines color presentation of outline glyphs. It must
+    be used in concert with the ``CPAL`` table, which contains the color
+    descriptors used.
+
+    This table is structured so that you can treat it like a dictionary keyed by glyph name.
+
+    ``ttFont['COLR'][<glyphName>]`` will return the color layers for any glyph.
+
+    ``ttFont['COLR'][<glyphName>] = <value>`` will set the color layers for any glyph.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/colr
+    """
+
+    @staticmethod
+    def _decompileColorLayersV0(table):
+        if not table.LayerRecordArray:
+            return {}
+        colorLayerLists = {}
+        layerRecords = table.LayerRecordArray.LayerRecord
+        numLayerRecords = len(layerRecords)
+        for baseRec in table.BaseGlyphRecordArray.BaseGlyphRecord:
+            baseGlyph = baseRec.BaseGlyph
+            firstLayerIndex = baseRec.FirstLayerIndex
+            numLayers = baseRec.NumLayers
+            assert firstLayerIndex + numLayers <= numLayerRecords
+            layers = []
+            for i in range(firstLayerIndex, firstLayerIndex + numLayers):
+                layerRec = layerRecords[i]
+                layers.append(LayerRecord(layerRec.LayerGlyph, layerRec.PaletteIndex))
+            colorLayerLists[baseGlyph] = layers
+        return colorLayerLists
+
+    def _toOTTable(self, ttFont):
+        from . import otTables
+        from fontTools.colorLib.builder import populateCOLRv0
+
+        tableClass = getattr(otTables, self.tableTag)
+        table = tableClass()
+        table.Version = self.version
+
+        populateCOLRv0(
+            table,
+            {
+                baseGlyph: [(layer.name, layer.colorID) for layer in layers]
+                for baseGlyph, layers in self.ColorLayers.items()
+            },
+            glyphMap=ttFont.getReverseGlyphMap(rebuild=True),
+        )
+        return table
+
+    def decompile(self, data, ttFont):
+        from .otBase import OTTableReader
+        from . import otTables
+
+        # We use otData to decompile, but we adapt the decompiled otTables to the
+        # existing COLR v0 API for backward compatibility.
+        reader = OTTableReader(data, tableTag=self.tableTag)
+        tableClass = getattr(otTables, self.tableTag)
+        table = tableClass()
+        table.decompile(reader, ttFont)
+
+        self.version = table.Version
+        if self.version == 0:
+            self.ColorLayers = self._decompileColorLayersV0(table)
+        else:
+            # for new versions, keep the raw otTables around
+            self.table = table
+
+    def compile(self, ttFont):
+        from .otBase import OTTableWriter
+
+        if hasattr(self, "table"):
+            table = self.table
+        else:
+            table = self._toOTTable(ttFont)
+
+        writer = OTTableWriter(tableTag=self.tableTag)
+        table.compile(writer, ttFont)
+        return writer.getAllData()
+
+    def toXML(self, writer, ttFont):
+        if hasattr(self, "table"):
+            self.table.toXML2(writer, ttFont)
+        else:
+            writer.simpletag("version", value=self.version)
+            writer.newline()
+            for baseGlyph in sorted(self.ColorLayers.keys(), key=ttFont.getGlyphID):
+                writer.begintag("ColorGlyph", name=baseGlyph)
+                writer.newline()
+                for layer in self.ColorLayers[baseGlyph]:
+                    layer.toXML(writer, ttFont)
+                writer.endtag("ColorGlyph")
+                writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "version":  # old COLR v0 API
+            setattr(self, name, safeEval(attrs["value"]))
+        elif name == "ColorGlyph":
+            if not hasattr(self, "ColorLayers"):
+                self.ColorLayers = {}
+            glyphName = attrs["name"]
+            for element in content:
+                if isinstance(element, str):
+                    continue
+            layers = []
+            for element in content:
+                if isinstance(element, str):
+                    continue
+                layer = LayerRecord()
+                layer.fromXML(element[0], element[1], element[2], ttFont)
+                layers.append(layer)
+            self.ColorLayers[glyphName] = layers
+        else:  # new COLR v1 API
+            from . import otTables
+
+            if not hasattr(self, "table"):
+                tableClass = getattr(otTables, self.tableTag)
+                self.table = tableClass()
+            self.table.fromXML(name, attrs, content, ttFont)
+            self.table.populateDefaults()
+            self.version = self.table.Version
+
+    def __getitem__(self, glyphName):
+        if not isinstance(glyphName, str):
+            raise TypeError(f"expected str, found {type(glyphName).__name__}")
+        return self.ColorLayers[glyphName]
+
+    def __setitem__(self, glyphName, value):
+        if not isinstance(glyphName, str):
+            raise TypeError(f"expected str, found {type(glyphName).__name__}")
+        if value is not None:
+            self.ColorLayers[glyphName] = value
+        elif glyphName in self.ColorLayers:
+            del self.ColorLayers[glyphName]
+
+    def __delitem__(self, glyphName):
+        del self.ColorLayers[glyphName]
+
+
+class LayerRecord(object):
+    def __init__(self, name=None, colorID=None):
+        self.name = name
+        self.colorID = colorID
+
+    def toXML(self, writer, ttFont):
+        writer.simpletag("layer", name=self.name, colorID=self.colorID)
+        writer.newline()
+
+    def fromXML(self, eltname, attrs, content, ttFont):
+        for name, value in attrs.items():
+            if name == "name":
+                setattr(self, name, value)
+            else:
+                setattr(self, name, safeEval(value))

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/C_P_A_L_.py

@@ -0,0 +1,305 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Google Author(s): Behdad Esfahbod
+
+from fontTools.misc.textTools import bytesjoin, safeEval
+from . import DefaultTable
+import array
+from collections import namedtuple
+import struct
+import sys
+
+
+class table_C_P_A_L_(DefaultTable.DefaultTable):
+    """Color Palette table
+
+    The ``CPAL`` table contains a set of one or more color palettes. The color
+    records in each palette can be referenced by the ``COLR`` table to specify
+    the colors used in a color glyph.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/cpal
+    """
+
+    NO_NAME_ID = 0xFFFF
+    DEFAULT_PALETTE_TYPE = 0
+
+    def __init__(self, tag=None):
+        DefaultTable.DefaultTable.__init__(self, tag)
+        self.palettes = []
+        self.paletteTypes = []
+        self.paletteLabels = []
+        self.paletteEntryLabels = []
+
+    def decompile(self, data, ttFont):
+        (
+            self.version,
+            self.numPaletteEntries,
+            numPalettes,
+            numColorRecords,
+            goffsetFirstColorRecord,
+        ) = struct.unpack(">HHHHL", data[:12])
+        assert (
+            self.version <= 1
+        ), "Version of CPAL table is higher than I know how to handle"
+        self.palettes = []
+        pos = 12
+        for i in range(numPalettes):
+            startIndex = struct.unpack(">H", data[pos : pos + 2])[0]
+            assert startIndex + self.numPaletteEntries <= numColorRecords
+            pos += 2
+            palette = []
+            ppos = goffsetFirstColorRecord + startIndex * 4
+            for j in range(self.numPaletteEntries):
+                palette.append(Color(*struct.unpack(">BBBB", data[ppos : ppos + 4])))
+                ppos += 4
+            self.palettes.append(palette)
+        if self.version == 0:
+            offsetToPaletteTypeArray = 0
+            offsetToPaletteLabelArray = 0
+            offsetToPaletteEntryLabelArray = 0
+        else:
+            pos = 12 + numPalettes * 2
+            (
+                offsetToPaletteTypeArray,
+                offsetToPaletteLabelArray,
+                offsetToPaletteEntryLabelArray,
+            ) = struct.unpack(">LLL", data[pos : pos + 12])
+        self.paletteTypes = self._decompileUInt32Array(
+            data,
+            offsetToPaletteTypeArray,
+            numPalettes,
+            default=self.DEFAULT_PALETTE_TYPE,
+        )
+        self.paletteLabels = self._decompileUInt16Array(
+            data, offsetToPaletteLabelArray, numPalettes, default=self.NO_NAME_ID
+        )
+        self.paletteEntryLabels = self._decompileUInt16Array(
+            data,
+            offsetToPaletteEntryLabelArray,
+            self.numPaletteEntries,
+            default=self.NO_NAME_ID,
+        )
+
+    def _decompileUInt16Array(self, data, offset, numElements, default=0):
+        if offset == 0:
+            return [default] * numElements
+        result = array.array("H", data[offset : offset + 2 * numElements])
+        if sys.byteorder != "big":
+            result.byteswap()
+        assert len(result) == numElements, result
+        return result.tolist()
+
+    def _decompileUInt32Array(self, data, offset, numElements, default=0):
+        if offset == 0:
+            return [default] * numElements
+        result = array.array("I", data[offset : offset + 4 * numElements])
+        if sys.byteorder != "big":
+            result.byteswap()
+        assert len(result) == numElements, result
+        return result.tolist()
+
+    def compile(self, ttFont):
+        colorRecordIndices, colorRecords = self._compileColorRecords()
+        paletteTypes = self._compilePaletteTypes()
+        paletteLabels = self._compilePaletteLabels()
+        paletteEntryLabels = self._compilePaletteEntryLabels()
+        numColorRecords = len(colorRecords) // 4
+        offsetToFirstColorRecord = 12 + len(colorRecordIndices)
+        if self.version >= 1:
+            offsetToFirstColorRecord += 12
+        header = struct.pack(
+            ">HHHHL",
+            self.version,
+            self.numPaletteEntries,
+            len(self.palettes),
+            numColorRecords,
+            offsetToFirstColorRecord,
+        )
+        if self.version == 0:
+            dataList = [header, colorRecordIndices, colorRecords]
+        else:
+            pos = offsetToFirstColorRecord + len(colorRecords)
+            if len(paletteTypes) == 0:
+                offsetToPaletteTypeArray = 0
+            else:
+                offsetToPaletteTypeArray = pos
+                pos += len(paletteTypes)
+            if len(paletteLabels) == 0:
+                offsetToPaletteLabelArray = 0
+            else:
+                offsetToPaletteLabelArray = pos
+                pos += len(paletteLabels)
+            if len(paletteEntryLabels) == 0:
+                offsetToPaletteEntryLabelArray = 0
+            else:
+                offsetToPaletteEntryLabelArray = pos
+                pos += len(paletteLabels)
+            header1 = struct.pack(
+                ">LLL",
+                offsetToPaletteTypeArray,
+                offsetToPaletteLabelArray,
+                offsetToPaletteEntryLabelArray,
+            )
+            dataList = [
+                header,
+                colorRecordIndices,
+                header1,
+                colorRecords,
+                paletteTypes,
+                paletteLabels,
+                paletteEntryLabels,
+            ]
+        return bytesjoin(dataList)
+
+    def _compilePalette(self, palette):
+        assert len(palette) == self.numPaletteEntries
+        pack = lambda c: struct.pack(">BBBB", c.blue, c.green, c.red, c.alpha)
+        return bytesjoin([pack(color) for color in palette])
+
+    def _compileColorRecords(self):
+        colorRecords, colorRecordIndices, pool = [], [], {}
+        for palette in self.palettes:
+            packedPalette = self._compilePalette(palette)
+            if packedPalette in pool:
+                index = pool[packedPalette]
+            else:
+                index = len(colorRecords)
+                colorRecords.append(packedPalette)
+                pool[packedPalette] = index
+            colorRecordIndices.append(struct.pack(">H", index * self.numPaletteEntries))
+        return bytesjoin(colorRecordIndices), bytesjoin(colorRecords)
+
+    def _compilePaletteTypes(self):
+        if self.version == 0 or not any(self.paletteTypes):
+            return b""
+        assert len(self.paletteTypes) == len(self.palettes)
+        result = bytesjoin([struct.pack(">I", ptype) for ptype in self.paletteTypes])
+        assert len(result) == 4 * len(self.palettes)
+        return result
+
+    def _compilePaletteLabels(self):
+        if self.version == 0 or all(l == self.NO_NAME_ID for l in self.paletteLabels):
+            return b""
+        assert len(self.paletteLabels) == len(self.palettes)
+        result = bytesjoin([struct.pack(">H", label) for label in self.paletteLabels])
+        assert len(result) == 2 * len(self.palettes)
+        return result
+
+    def _compilePaletteEntryLabels(self):
+        if self.version == 0 or all(
+            l == self.NO_NAME_ID for l in self.paletteEntryLabels
+        ):
+            return b""
+        assert len(self.paletteEntryLabels) == self.numPaletteEntries
+        result = bytesjoin(
+            [struct.pack(">H", label) for label in self.paletteEntryLabels]
+        )
+        assert len(result) == 2 * self.numPaletteEntries
+        return result
+
+    def toXML(self, writer, ttFont):
+        numPalettes = len(self.palettes)
+        paletteLabels = {i: nameID for (i, nameID) in enumerate(self.paletteLabels)}
+        paletteTypes = {i: typ for (i, typ) in enumerate(self.paletteTypes)}
+        writer.simpletag("version", value=self.version)
+        writer.newline()
+        writer.simpletag("numPaletteEntries", value=self.numPaletteEntries)
+        writer.newline()
+        for index, palette in enumerate(self.palettes):
+            attrs = {"index": index}
+            paletteType = paletteTypes.get(index, self.DEFAULT_PALETTE_TYPE)
+            paletteLabel = paletteLabels.get(index, self.NO_NAME_ID)
+            if self.version > 0 and paletteLabel != self.NO_NAME_ID:
+                attrs["label"] = paletteLabel
+            if self.version > 0 and paletteType != self.DEFAULT_PALETTE_TYPE:
+                attrs["type"] = paletteType
+            writer.begintag("palette", **attrs)
+            writer.newline()
+            if (
+                self.version > 0
+                and paletteLabel != self.NO_NAME_ID
+                and ttFont
+                and "name" in ttFont
+            ):
+                name = ttFont["name"].getDebugName(paletteLabel)
+                if name is not None:
+                    writer.comment(name)
+                    writer.newline()
+            assert len(palette) == self.numPaletteEntries
+            for cindex, color in enumerate(palette):
+                color.toXML(writer, ttFont, cindex)
+            writer.endtag("palette")
+            writer.newline()
+        if self.version > 0 and not all(
+            l == self.NO_NAME_ID for l in self.paletteEntryLabels
+        ):
+            writer.begintag("paletteEntryLabels")
+            writer.newline()
+            for index, label in enumerate(self.paletteEntryLabels):
+                if label != self.NO_NAME_ID:
+                    writer.simpletag("label", index=index, value=label)
+                    if self.version > 0 and label and ttFont and "name" in ttFont:
+                        name = ttFont["name"].getDebugName(label)
+                        if name is not None:
+                            writer.comment(name)
+                    writer.newline()
+            writer.endtag("paletteEntryLabels")
+            writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "palette":
+            self.paletteLabels.append(int(attrs.get("label", self.NO_NAME_ID)))
+            self.paletteTypes.append(int(attrs.get("type", self.DEFAULT_PALETTE_TYPE)))
+            palette = []
+            for element in content:
+                if isinstance(element, str):
+                    continue
+                attrs = element[1]
+                color = Color.fromHex(attrs["value"])
+                palette.append(color)
+            self.palettes.append(palette)
+        elif name == "paletteEntryLabels":
+            colorLabels = {}
+            for element in content:
+                if isinstance(element, str):
+                    continue
+                elementName, elementAttr, _ = element
+                if elementName == "label":
+                    labelIndex = safeEval(elementAttr["index"])
+                    nameID = safeEval(elementAttr["value"])
+                    colorLabels[labelIndex] = nameID
+            self.paletteEntryLabels = [
+                colorLabels.get(i, self.NO_NAME_ID)
+                for i in range(self.numPaletteEntries)
+            ]
+        elif "value" in attrs:
+            value = safeEval(attrs["value"])
+            setattr(self, name, value)
+            if name == "numPaletteEntries":
+                self.paletteEntryLabels = [self.NO_NAME_ID] * self.numPaletteEntries
+
+
+class Color(namedtuple("Color", "blue green red alpha")):
+    def hex(self):
+        return "#%02X%02X%02X%02X" % (self.red, self.green, self.blue, self.alpha)
+
+    def __repr__(self):
+        return self.hex()
+
+    def toXML(self, writer, ttFont, index=None):
+        writer.simpletag("color", value=self.hex(), index=index)
+        writer.newline()
+
+    @classmethod
+    def fromHex(cls, value):
+        if value[0] == "#":
+            value = value[1:]
+        red = int(value[0:2], 16)
+        green = int(value[2:4], 16)
+        blue = int(value[4:6], 16)
+        alpha = int(value[6:8], 16) if len(value) >= 8 else 0xFF
+        return cls(red=red, green=green, blue=blue, alpha=alpha)
+
+    @classmethod
+    def fromRGBA(cls, red, green, blue, alpha):
+        return cls(red=red, green=green, blue=blue, alpha=alpha)

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/D_S_I_G_.py

@@ -0,0 +1,170 @@
+from __future__ import annotations
+
+import base64
+from typing import TYPE_CHECKING
+
+from fontTools.misc import sstruct
+from fontTools.misc.textTools import bytesjoin, safeEval, strjoin, tobytes, tostr
+
+from . import DefaultTable
+
+if TYPE_CHECKING:
+    from fontTools.misc.xmlWriter import XMLWriter
+    from fontTools.ttLib import TTFont
+
+DSIG_HeaderFormat = """
+	> # big endian
+	ulVersion:      L
+	usNumSigs:      H
+	usFlag:         H
+"""
+# followed by an array of usNumSigs DSIG_Signature records
+DSIG_SignatureFormat = """
+	> # big endian
+	ulFormat:       L
+	ulLength:       L # length includes DSIG_SignatureBlock header
+	ulOffset:       L
+"""
+# followed by an array of usNumSigs DSIG_SignatureBlock records,
+# each followed immediately by the pkcs7 bytes
+DSIG_SignatureBlockFormat = """
+	> # big endian
+	usReserved1:    H
+	usReserved2:    H
+	cbSignature:    l # length of following raw pkcs7 data
+"""
+
+#
+# NOTE
+# the DSIG table format allows for SignatureBlocks residing
+# anywhere in the table and possibly in a different order as
+# listed in the array after the first table header
+#
+# this implementation does not keep track of any gaps and/or data
+# before or after the actual signature blocks while decompiling,
+# and puts them in the same physical order as listed in the header
+# on compilation with no padding whatsoever.
+#
+
+
+class table_D_S_I_G_(DefaultTable.DefaultTable):
+    """Digital Signature table
+
+    The ``DSIG`` table contains cryptographic signatures for the font.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/dsig
+    """
+
+    def decompile(self, data: bytes, ttFont: TTFont) -> None:
+        dummy, newData = sstruct.unpack2(DSIG_HeaderFormat, data, self)
+        assert self.ulVersion == 1, "DSIG ulVersion must be 1"
+        assert self.usFlag & ~1 == 0, "DSIG usFlag must be 0x1 or 0x0"
+        self.signatureRecords: list[SignatureRecord] = []
+        sigrecs = self.signatureRecords
+        for n in range(self.usNumSigs):
+            sigrec, newData = sstruct.unpack2(
+                DSIG_SignatureFormat, newData, SignatureRecord()
+            )
+            assert sigrec.ulFormat == 1, (
+                "DSIG signature record #%d ulFormat must be 1" % n
+            )
+            sigrecs.append(sigrec)
+        for sigrec in sigrecs:
+            dummy, newData = sstruct.unpack2(
+                DSIG_SignatureBlockFormat, data[sigrec.ulOffset :], sigrec
+            )
+            assert sigrec.usReserved1 == 0, (
+                "DSIG signature record #%d usReserverd1 must be 0" % n
+            )
+            assert sigrec.usReserved2 == 0, (
+                "DSIG signature record #%d usReserverd2 must be 0" % n
+            )
+            sigrec.pkcs7 = newData[: sigrec.cbSignature]
+
+    def compile(self, ttFont: TTFont) -> bytes:
+        packed = sstruct.pack(DSIG_HeaderFormat, self)
+        headers = [packed]
+        offset = len(packed) + self.usNumSigs * sstruct.calcsize(DSIG_SignatureFormat)
+        data = []
+        for sigrec in self.signatureRecords:
+            # first pack signature block
+            sigrec.cbSignature = len(sigrec.pkcs7)
+            packed = sstruct.pack(DSIG_SignatureBlockFormat, sigrec) + sigrec.pkcs7
+            data.append(packed)
+            # update redundant length field
+            sigrec.ulLength = len(packed)
+            # update running table offset
+            sigrec.ulOffset = offset
+            headers.append(sstruct.pack(DSIG_SignatureFormat, sigrec))
+            offset += sigrec.ulLength
+        if offset % 2:
+            # Pad to even bytes
+            data.append(b"\0")
+        return bytesjoin(headers + data)
+
+    def toXML(self, xmlWriter: XMLWriter, ttFont: TTFont) -> None:
+        xmlWriter.comment(
+            "note that the Digital Signature will be invalid after recompilation!"
+        )
+        xmlWriter.newline()
+        xmlWriter.simpletag(
+            "tableHeader",
+            version=self.ulVersion,
+            numSigs=self.usNumSigs,
+            flag="0x%X" % self.usFlag,
+        )
+        for sigrec in self.signatureRecords:
+            xmlWriter.newline()
+            sigrec.toXML(xmlWriter, ttFont)
+        xmlWriter.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "tableHeader":
+            self.signatureRecords = []
+            self.ulVersion = safeEval(attrs["version"])
+            self.usNumSigs = safeEval(attrs["numSigs"])
+            self.usFlag = safeEval(attrs["flag"])
+            return
+        if name == "SignatureRecord":
+            sigrec = SignatureRecord()
+            sigrec.fromXML(name, attrs, content, ttFont)
+            self.signatureRecords.append(sigrec)
+
+
+pem_spam = lambda l, spam={
+    "-----BEGIN PKCS7-----": True,
+    "-----END PKCS7-----": True,
+    "": True,
+}: not spam.get(l.strip())
+
+
+def b64encode(b):
+    s = base64.b64encode(b)
+    # Line-break at 76 chars.
+    items = []
+    while s:
+        items.append(tostr(s[:76]))
+        items.append("\n")
+        s = s[76:]
+    return strjoin(items)
+
+
+class SignatureRecord:
+    def __repr__(self) -> str:
+        return "<%s: %s>" % (self.__class__.__name__, self.__dict__)
+
+    def toXML(self, writer, ttFont: TTFont) -> None:
+        writer.begintag(self.__class__.__name__, format=self.ulFormat)
+        writer.newline()
+        writer.write_noindent("-----BEGIN PKCS7-----\n")
+        writer.write_noindent(b64encode(self.pkcs7))
+        writer.write_noindent("-----END PKCS7-----\n")
+        writer.endtag(self.__class__.__name__)
+
+    def fromXML(
+        self, name: str, attrs: dict[str, str], content: str, ttFont: TTFont
+    ) -> None:
+        self.ulFormat: int = safeEval(attrs["format"])
+        self.usReserved1: int = safeEval(attrs.get("reserved1", "0"))
+        self.usReserved2: int = safeEval(attrs.get("reserved2", "0"))
+        self.pkcs7 = base64.b64decode(tobytes(strjoin(filter(pem_spam, content))))

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/D__e_b_g.py

@@ -0,0 +1,35 @@
+import json
+from textwrap import indent
+
+from . import DefaultTable
+from fontTools.misc.textTools import tostr
+
+
+class table_D__e_b_g(DefaultTable.DefaultTable):
+    def __init__(self, tag=None):
+        DefaultTable.DefaultTable.__init__(self, tag)
+        self.data = {}
+
+    def decompile(self, data, ttFont):
+        self.data = json.loads(data)
+
+    def compile(self, ttFont):
+        return json.dumps(self.data).encode("utf-8")
+
+    def toXML(self, writer, ttFont):
+        # make sure json indentation inside CDATA block matches XMLWriter's
+        data = json.dumps(self.data, indent=len(writer.indentwhite))
+        prefix = tostr(writer.indentwhite) * (writer.indentlevel + 1)
+        # but don't indent the first json line so it's adjacent to `<![CDATA[{`
+        cdata = indent(data, prefix, lambda ln: ln != "{\n")
+
+        writer.begintag("json")
+        writer.newline()
+        writer.writecdata(cdata)
+        writer.newline()
+        writer.endtag("json")
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "json":
+            self.data = json.loads("".join(content))

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/DefaultTable.py

@@ -0,0 +1,64 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from fontTools.misc.textTools import Tag
+from fontTools.ttLib import getClassTag
+
+if TYPE_CHECKING:
+    from typing import Any
+
+    from fontTools.misc.xmlWriter import XMLWriter
+    from fontTools.ttLib import TTFont
+
+XMLAttrs = dict[str, str]
+XMLContent = list[str | tuple[str, XMLAttrs, "XMLContent"]]
+
+
+class DefaultTable:
+    dependencies: list[str] = []
+
+    def __init__(self, tag: str | bytes | None = None) -> None:
+        if tag is None:
+            tag = getClassTag(self.__class__)
+        self.tableTag = Tag(tag)
+
+    def decompile(self, data: bytes, ttFont: TTFont) -> None:
+        self.data = data
+
+    def compile(self, ttFont: TTFont) -> bytes:
+        return self.data
+
+    def toXML(self, writer: XMLWriter, ttFont: TTFont, **kwargs: Any) -> None:
+        if hasattr(self, "ERROR"):
+            writer.comment("An error occurred during the decompilation of this table")
+            writer.newline()
+            writer.comment(self.ERROR)
+            writer.newline()
+        writer.begintag("hexdata")
+        writer.newline()
+        writer.dumphex(self.compile(ttFont))
+        writer.endtag("hexdata")
+        writer.newline()
+
+    def fromXML(
+        self, name: str, attrs: XMLAttrs, content: XMLContent, ttFont: TTFont
+    ) -> None:
+        from fontTools import ttLib
+        from fontTools.misc.textTools import readHex
+
+        if name != "hexdata":
+            raise ttLib.TTLibError("can't handle '%s' element" % name)
+        self.decompile(readHex(content), ttFont)
+
+    def __repr__(self) -> str:
+        return "<'%s' table at %x>" % (self.tableTag, id(self))
+
+    def __eq__(self, other: object) -> bool:
+        if type(self) is not type(other):
+            return NotImplemented
+        return self.__dict__ == other.__dict__
+
+    def __ne__(self, other: object) -> bool:
+        result = self.__eq__(other)
+        return result if result is NotImplemented else not result

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/E_B_D_T_.py

@@ -0,0 +1,856 @@
+from fontTools.misc import sstruct
+from fontTools.misc.textTools import (
+    bytechr,
+    byteord,
+    bytesjoin,
+    strjoin,
+    safeEval,
+    readHex,
+    hexStr,
+    deHexStr,
+)
+from .BitmapGlyphMetrics import (
+    BigGlyphMetrics,
+    bigGlyphMetricsFormat,
+    SmallGlyphMetrics,
+    smallGlyphMetricsFormat,
+)
+from . import DefaultTable
+import itertools
+import os
+import re
+from urllib.parse import quote
+
+# a glyph name is usable as a filename as-is unless it contains a path
+# separator (on any platform, not just this one) or the '%' that marks an
+# encoded name
+_UNSAFE_IN_FILENAME = re.compile(r"[%/\\]")
+import struct
+import logging
+
+log = logging.getLogger(__name__)
+
+ebdtTableVersionFormat = """
+	> # big endian
+	version: 16.16F
+"""
+
+ebdtComponentFormat = """
+	> # big endian
+	glyphCode: H
+	xOffset:   b
+	yOffset:   b
+"""
+
+
+class table_E_B_D_T_(DefaultTable.DefaultTable):
+    """Embedded Bitmap Data table
+
+    The ``EBDT`` table contains monochrome or grayscale bitmap data for
+    glyphs. It must be used in concert with the ``EBLC`` table.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/ebdt
+    """
+
+    # Keep a reference to the name of the data locator table.
+    locatorName = "EBLC"
+
+    # This method can be overridden in subclasses to support new formats
+    # without changing the other implementation. Also can be used as a
+    # convenience method for coverting a font file to an alternative format.
+    def getImageFormatClass(self, imageFormat):
+        return ebdt_bitmap_classes[imageFormat]
+
+    def decompile(self, data, ttFont):
+        # Get the version but don't advance the slice.
+        # Most of the lookup for this table is done relative
+        # to the begining so slice by the offsets provided
+        # in the EBLC table.
+        sstruct.unpack2(ebdtTableVersionFormat, data, self)
+
+        # Keep a dict of glyphs that have been seen so they aren't remade.
+        # This dict maps intervals of data to the BitmapGlyph.
+        glyphDict = {}
+
+        # Pull out the EBLC table and loop through glyphs.
+        # A strike is a concept that spans both tables.
+        # The actual bitmap data is stored in the EBDT.
+        locator = ttFont[self.__class__.locatorName]
+        self.strikeData = []
+        for curStrike in locator.strikes:
+            bitmapGlyphDict = {}
+            self.strikeData.append(bitmapGlyphDict)
+            for indexSubTable in curStrike.indexSubTables:
+                dataIter = zip(indexSubTable.names, indexSubTable.locations)
+                for curName, curLoc in dataIter:
+                    # Don't create duplicate data entries for the same glyphs.
+                    # Instead just use the structures that already exist if they exist.
+                    if curLoc in glyphDict:
+                        curGlyph = glyphDict[curLoc]
+                    else:
+                        curGlyphData = data[slice(*curLoc)]
+                        imageFormatClass = self.getImageFormatClass(
+                            indexSubTable.imageFormat
+                        )
+                        curGlyph = imageFormatClass(curGlyphData, ttFont)
+                        glyphDict[curLoc] = curGlyph
+                    bitmapGlyphDict[curName] = curGlyph
+
+    def compile(self, ttFont):
+        dataList = []
+        dataList.append(sstruct.pack(ebdtTableVersionFormat, self))
+        dataSize = len(dataList[0])
+
+        # Keep a dict of glyphs that have been seen so they aren't remade.
+        # This dict maps the id of the BitmapGlyph to the interval
+        # in the data.
+        glyphDict = {}
+
+        # Go through the bitmap glyph data. Just in case the data for a glyph
+        # changed the size metrics should be recalculated. There are a variety
+        # of formats and they get stored in the EBLC table. That is why
+        # recalculation is defered to the EblcIndexSubTable class and just
+        # pass what is known about bitmap glyphs from this particular table.
+        locator = ttFont[self.__class__.locatorName]
+        for curStrike, curGlyphDict in zip(locator.strikes, self.strikeData):
+            for curIndexSubTable in curStrike.indexSubTables:
+                dataLocations = []
+                for curName in curIndexSubTable.names:
+                    # Handle the data placement based on seeing the glyph or not.
+                    # Just save a reference to the location if the glyph has already
+                    # been saved in compile. This code assumes that glyphs will only
+                    # be referenced multiple times from indexFormat5. By luck the
+                    # code may still work when referencing poorly ordered fonts with
+                    # duplicate references. If there is a font that is unlucky the
+                    # respective compile methods for the indexSubTables will fail
+                    # their assertions. All fonts seem to follow this assumption.
+                    # More complicated packing may be needed if a counter-font exists.
+                    glyph = curGlyphDict[curName]
+                    objectId = id(glyph)
+                    if objectId not in glyphDict:
+                        data = glyph.compile(ttFont)
+                        data = curIndexSubTable.padBitmapData(data)
+                        startByte = dataSize
+                        dataSize += len(data)
+                        endByte = dataSize
+                        dataList.append(data)
+                        dataLoc = (startByte, endByte)
+                        glyphDict[objectId] = dataLoc
+                    else:
+                        dataLoc = glyphDict[objectId]
+                    dataLocations.append(dataLoc)
+                # Just use the new data locations in the indexSubTable.
+                # The respective compile implementations will take care
+                # of any of the problems in the convertion that may arise.
+                curIndexSubTable.locations = dataLocations
+
+        return bytesjoin(dataList)
+
+    def toXML(self, writer, ttFont):
+        # When exporting to XML if one of the data export formats
+        # requires metrics then those metrics may be in the locator.
+        # In this case populate the bitmaps with "export metrics".
+        if ttFont.bitmapGlyphDataFormat in ("row", "bitwise"):
+            locator = ttFont[self.__class__.locatorName]
+            for curStrike, curGlyphDict in zip(locator.strikes, self.strikeData):
+                for curIndexSubTable in curStrike.indexSubTables:
+                    for curName in curIndexSubTable.names:
+                        glyph = curGlyphDict[curName]
+                        # I'm not sure which metrics have priority here.
+                        # For now if both metrics exist go with glyph metrics.
+                        if hasattr(glyph, "metrics"):
+                            glyph.exportMetrics = glyph.metrics
+                        else:
+                            glyph.exportMetrics = curIndexSubTable.metrics
+                        glyph.exportBitDepth = curStrike.bitmapSizeTable.bitDepth
+
+        writer.simpletag("header", [("version", self.version)])
+        writer.newline()
+        locator = ttFont[self.__class__.locatorName]
+        for strikeIndex, bitmapGlyphDict in enumerate(self.strikeData):
+            writer.begintag("strikedata", [("index", strikeIndex)])
+            writer.newline()
+            for curName, curBitmap in bitmapGlyphDict.items():
+                curBitmap.toXML(strikeIndex, curName, writer, ttFont)
+            writer.endtag("strikedata")
+            writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "header":
+            self.version = safeEval(attrs["version"])
+        elif name == "strikedata":
+            if not hasattr(self, "strikeData"):
+                self.strikeData = []
+            strikeIndex = safeEval(attrs["index"])
+
+            bitmapGlyphDict = {}
+            for element in content:
+                if not isinstance(element, tuple):
+                    continue
+                name, attrs, content = element
+                if name[4:].startswith(_bitmapGlyphSubclassPrefix[4:]):
+                    imageFormat = safeEval(name[len(_bitmapGlyphSubclassPrefix) :])
+                    glyphName = attrs["name"]
+                    imageFormatClass = self.getImageFormatClass(imageFormat)
+                    curGlyph = imageFormatClass(None, None)
+                    curGlyph.fromXML(name, attrs, content, ttFont)
+                    assert glyphName not in bitmapGlyphDict, (
+                        "Duplicate glyphs with the same name '%s' in the same strike."
+                        % glyphName
+                    )
+                    bitmapGlyphDict[glyphName] = curGlyph
+                else:
+                    log.warning("%s being ignored by %s", name, self.__class__.__name__)
+
+            # Grow the strike data array to the appropriate size. The XML
+            # format allows the strike index value to be out of order.
+            if strikeIndex >= len(self.strikeData):
+                self.strikeData += [None] * (strikeIndex + 1 - len(self.strikeData))
+            assert (
+                self.strikeData[strikeIndex] is None
+            ), "Duplicate strike EBDT indices."
+            self.strikeData[strikeIndex] = bitmapGlyphDict
+
+
+class EbdtComponent(object):
+    def toXML(self, writer, ttFont):
+        writer.begintag("ebdtComponent", [("name", self.name)])
+        writer.newline()
+        for componentName in sstruct.getformat(ebdtComponentFormat)[1][1:]:
+            writer.simpletag(componentName, value=getattr(self, componentName))
+            writer.newline()
+        writer.endtag("ebdtComponent")
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        self.name = attrs["name"]
+        componentNames = set(sstruct.getformat(ebdtComponentFormat)[1][1:])
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name in componentNames:
+                vars(self)[name] = safeEval(attrs["value"])
+            else:
+                log.warning("unknown name '%s' being ignored by EbdtComponent.", name)
+
+
+# Helper functions for dealing with binary.
+
+
+def _data2binary(data, numBits):
+    binaryList = []
+    for curByte in data:
+        value = byteord(curByte)
+        numBitsCut = min(8, numBits)
+        for i in range(numBitsCut):
+            if value & 0x1:
+                binaryList.append("1")
+            else:
+                binaryList.append("0")
+            value = value >> 1
+        numBits -= numBitsCut
+    return strjoin(binaryList)
+
+
+def _binary2data(binary):
+    byteList = []
+    for bitLoc in range(0, len(binary), 8):
+        byteString = binary[bitLoc : bitLoc + 8]
+        curByte = 0
+        for curBit in reversed(byteString):
+            curByte = curByte << 1
+            if curBit == "1":
+                curByte |= 1
+        byteList.append(bytechr(curByte))
+    return bytesjoin(byteList)
+
+
+def _memoize(f):
+    class memodict(dict):
+        def __missing__(self, key):
+            ret = f(key)
+            if isinstance(key, int) or len(key) == 1:
+                self[key] = ret
+            return ret
+
+    return memodict().__getitem__
+
+
+# 00100111 -> 11100100 per byte, not to be confused with little/big endian.
+# Bitmap data per byte is in the order that binary is written on the page
+# with the least significant bit as far right as possible. This is the
+# opposite of what makes sense algorithmically and hence this function.
+@_memoize
+def _reverseBytes(data):
+    r"""
+    >>> bin(ord(_reverseBytes(0b00100111)))
+    '0b11100100'
+    >>> _reverseBytes(b'\x00\xf0')
+    b'\x00\x0f'
+    """
+    if isinstance(data, bytes) and len(data) != 1:
+        return bytesjoin(map(_reverseBytes, data))
+    byte = byteord(data)
+    result = 0
+    for i in range(8):
+        result = result << 1
+        result |= byte & 1
+        byte = byte >> 1
+    return bytechr(result)
+
+
+# This section of code is for reading and writing image data to/from XML.
+
+
+def _writeRawImageData(strikeIndex, glyphName, bitmapObject, writer, ttFont):
+    writer.begintag("rawimagedata")
+    writer.newline()
+    writer.dumphex(bitmapObject.imageData)
+    writer.endtag("rawimagedata")
+    writer.newline()
+
+
+def _readRawImageData(bitmapObject, name, attrs, content, ttFont):
+    bitmapObject.imageData = readHex(content)
+
+
+def _writeRowImageData(strikeIndex, glyphName, bitmapObject, writer, ttFont):
+    metrics = bitmapObject.exportMetrics
+    del bitmapObject.exportMetrics
+    bitDepth = bitmapObject.exportBitDepth
+    del bitmapObject.exportBitDepth
+
+    writer.begintag(
+        "rowimagedata", bitDepth=bitDepth, width=metrics.width, height=metrics.height
+    )
+    writer.newline()
+    for curRow in range(metrics.height):
+        rowData = bitmapObject.getRow(curRow, bitDepth=bitDepth, metrics=metrics)
+        writer.simpletag("row", value=hexStr(rowData))
+        writer.newline()
+    writer.endtag("rowimagedata")
+    writer.newline()
+
+
+def _readRowImageData(bitmapObject, name, attrs, content, ttFont):
+    bitDepth = safeEval(attrs["bitDepth"])
+    metrics = SmallGlyphMetrics()
+    metrics.width = safeEval(attrs["width"])
+    metrics.height = safeEval(attrs["height"])
+
+    dataRows = []
+    for element in content:
+        if not isinstance(element, tuple):
+            continue
+        name, attr, content = element
+        # Chop off 'imagedata' from the tag to get just the option.
+        if name == "row":
+            dataRows.append(deHexStr(attr["value"]))
+    bitmapObject.setRows(dataRows, bitDepth=bitDepth, metrics=metrics)
+
+
+def _writeBitwiseImageData(strikeIndex, glyphName, bitmapObject, writer, ttFont):
+    metrics = bitmapObject.exportMetrics
+    del bitmapObject.exportMetrics
+    bitDepth = bitmapObject.exportBitDepth
+    del bitmapObject.exportBitDepth
+
+    # A dict for mapping binary to more readable/artistic ASCII characters.
+    binaryConv = {"0": ".", "1": "@"}
+
+    writer.begintag(
+        "bitwiseimagedata",
+        bitDepth=bitDepth,
+        width=metrics.width,
+        height=metrics.height,
+    )
+    writer.newline()
+    for curRow in range(metrics.height):
+        rowData = bitmapObject.getRow(
+            curRow, bitDepth=1, metrics=metrics, reverseBytes=True
+        )
+        rowData = _data2binary(rowData, metrics.width)
+        # Make the output a readable ASCII art form.
+        rowData = strjoin(map(binaryConv.get, rowData))
+        writer.simpletag("row", value=rowData)
+        writer.newline()
+    writer.endtag("bitwiseimagedata")
+    writer.newline()
+
+
+def _readBitwiseImageData(bitmapObject, name, attrs, content, ttFont):
+    bitDepth = safeEval(attrs["bitDepth"])
+    metrics = SmallGlyphMetrics()
+    metrics.width = safeEval(attrs["width"])
+    metrics.height = safeEval(attrs["height"])
+
+    # A dict for mapping from ASCII to binary. All characters are considered
+    # a '1' except space, period and '0' which maps to '0'.
+    binaryConv = {" ": "0", ".": "0", "0": "0"}
+
+    dataRows = []
+    for element in content:
+        if not isinstance(element, tuple):
+            continue
+        name, attr, content = element
+        if name == "row":
+            mapParams = zip(attr["value"], itertools.repeat("1"))
+            rowData = strjoin(itertools.starmap(binaryConv.get, mapParams))
+            dataRows.append(_binary2data(rowData))
+
+    bitmapObject.setRows(
+        dataRows, bitDepth=bitDepth, metrics=metrics, reverseBytes=True
+    )
+
+
+def _extFileName(glyphName):
+    # Glyph names come straight from the font and may contain path separators
+    # (e.g. a crafted 'post' table), which would let the exported bitmap escape
+    # the output folder. Names that are usable as a filename verbatim -- i.e.
+    # every real glyph name -- are returned unchanged, so existing exports keep
+    # their filenames; the rest are percent-encoded and marked with a leading
+    # '%'. The mapping has to be injective, or two glyphs quietly share one
+    # file and the second overwrites the first: a plain name is never encoded
+    # and never contains '%', an encoded one always starts with '%', and
+    # percent-encoding is itself reversible, so no two names can meet.
+    if glyphName not in ("", ".", "..") and not _UNSAFE_IN_FILENAME.search(glyphName):
+        return glyphName
+    return "%" + quote(glyphName, safe="", encoding="utf-8", errors="surrogatepass")
+
+
+def _writeExtFileImageData(strikeIndex, glyphName, bitmapObject, writer, ttFont):
+    try:
+        folder = os.path.dirname(writer.file.name)
+    except AttributeError:
+        # fall back to current directory if output file's directory isn't found
+        folder = "."
+    folder = os.path.join(folder, "bitmaps")
+    filename = _extFileName(glyphName) + bitmapObject.fileExtension
+    if not os.path.isdir(folder):
+        os.makedirs(folder)
+    folder = os.path.join(folder, "strike%d" % strikeIndex)
+    if not os.path.isdir(folder):
+        os.makedirs(folder)
+
+    fullPath = os.path.join(folder, filename)
+    writer.simpletag("extfileimagedata", value=fullPath)
+    writer.newline()
+
+    with open(fullPath, "wb") as file:
+        file.write(bitmapObject.imageData)
+
+
+def _readExtFileImageData(bitmapObject, name, attrs, content, ttFont):
+    fullPath = attrs["value"]
+    with open(fullPath, "rb") as file:
+        bitmapObject.imageData = file.read()
+
+
+# End of XML writing code.
+
+# Important information about the naming scheme. Used for identifying formats
+# in XML.
+_bitmapGlyphSubclassPrefix = "ebdt_bitmap_format_"
+
+
+class BitmapGlyph(object):
+    # For the external file format. This can be changed in subclasses. This way
+    # when the extfile option is turned on files have the form: glyphName.ext
+    # The default is just a flat binary file with no meaning.
+    fileExtension = ".bin"
+
+    # Keep track of reading and writing of various forms.
+    xmlDataFunctions = {
+        "raw": (_writeRawImageData, _readRawImageData),
+        "row": (_writeRowImageData, _readRowImageData),
+        "bitwise": (_writeBitwiseImageData, _readBitwiseImageData),
+        "extfile": (_writeExtFileImageData, _readExtFileImageData),
+    }
+
+    def __init__(self, data, ttFont):
+        self.data = data
+        self.ttFont = ttFont
+        # TODO Currently non-lazy decompilation is untested here...
+        # if not ttFont.lazy:
+        # 	self.decompile()
+        # 	del self.data
+
+    def __getattr__(self, attr):
+        # Allow lazy decompile.
+        if attr[:2] == "__":
+            raise AttributeError(attr)
+        if attr == "data":
+            raise AttributeError(attr)
+        self.decompile()
+        del self.data
+        return getattr(self, attr)
+
+    def ensureDecompiled(self, recurse=False):
+        if hasattr(self, "data"):
+            self.decompile()
+            del self.data
+
+    # Not a fan of this but it is needed for safer safety checking.
+    def getFormat(self):
+        return safeEval(self.__class__.__name__[len(_bitmapGlyphSubclassPrefix) :])
+
+    def toXML(self, strikeIndex, glyphName, writer, ttFont):
+        writer.begintag(self.__class__.__name__, [("name", glyphName)])
+        writer.newline()
+
+        self.writeMetrics(writer, ttFont)
+        # Use the internal write method to write using the correct output format.
+        self.writeData(strikeIndex, glyphName, writer, ttFont)
+
+        writer.endtag(self.__class__.__name__)
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        self.readMetrics(name, attrs, content, ttFont)
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attr, content = element
+            if not name.endswith("imagedata"):
+                continue
+            # Chop off 'imagedata' from the tag to get just the option.
+            option = name[: -len("imagedata")]
+            assert option in self.__class__.xmlDataFunctions
+            self.readData(name, attr, content, ttFont)
+
+    # Some of the glyphs have the metrics. This allows for metrics to be
+    # added if the glyph format has them. Default behavior is to do nothing.
+    def writeMetrics(self, writer, ttFont):
+        pass
+
+    # The opposite of write metrics.
+    def readMetrics(self, name, attrs, content, ttFont):
+        pass
+
+    def writeData(self, strikeIndex, glyphName, writer, ttFont):
+        try:
+            writeFunc, readFunc = self.__class__.xmlDataFunctions[
+                ttFont.bitmapGlyphDataFormat
+            ]
+        except KeyError:
+            writeFunc = _writeRawImageData
+        writeFunc(strikeIndex, glyphName, self, writer, ttFont)
+
+    def readData(self, name, attrs, content, ttFont):
+        # Chop off 'imagedata' from the tag to get just the option.
+        option = name[: -len("imagedata")]
+        writeFunc, readFunc = self.__class__.xmlDataFunctions[option]
+        readFunc(self, name, attrs, content, ttFont)
+
+
+# A closure for creating a mixin for the two types of metrics handling.
+# Most of the code is very similar so its easier to deal with here.
+# Everything works just by passing the class that the mixin is for.
+def _createBitmapPlusMetricsMixin(metricsClass):
+    # Both metrics names are listed here to make meaningful error messages.
+    metricStrings = [BigGlyphMetrics.__name__, SmallGlyphMetrics.__name__]
+    curMetricsName = metricsClass.__name__
+    # Find which metrics this is for and determine the opposite name.
+    metricsId = metricStrings.index(curMetricsName)
+    oppositeMetricsName = metricStrings[1 - metricsId]
+
+    class BitmapPlusMetricsMixin(object):
+        def writeMetrics(self, writer, ttFont):
+            self.metrics.toXML(writer, ttFont)
+
+        def readMetrics(self, name, attrs, content, ttFont):
+            for element in content:
+                if not isinstance(element, tuple):
+                    continue
+                name, attrs, content = element
+                if name == curMetricsName:
+                    self.metrics = metricsClass()
+                    self.metrics.fromXML(name, attrs, content, ttFont)
+                elif name == oppositeMetricsName:
+                    log.warning(
+                        "Warning: %s being ignored in format %d.",
+                        oppositeMetricsName,
+                        self.getFormat(),
+                    )
+
+    return BitmapPlusMetricsMixin
+
+
+# Since there are only two types of mixin's just create them here.
+BitmapPlusBigMetricsMixin = _createBitmapPlusMetricsMixin(BigGlyphMetrics)
+BitmapPlusSmallMetricsMixin = _createBitmapPlusMetricsMixin(SmallGlyphMetrics)
+
+
+# Data that is bit aligned can be tricky to deal with. These classes implement
+# helper functionality for dealing with the data and getting a particular row
+# of bitwise data. Also helps implement fancy data export/import in XML.
+class BitAlignedBitmapMixin(object):
+    def _getBitRange(self, row, bitDepth, metrics):
+        rowBits = bitDepth * metrics.width
+        bitOffset = row * rowBits
+        return (bitOffset, bitOffset + rowBits)
+
+    def getRow(self, row, bitDepth=1, metrics=None, reverseBytes=False):
+        if metrics is None:
+            metrics = self.metrics
+        assert 0 <= row and row < metrics.height, "Illegal row access in bitmap"
+
+        # Loop through each byte. This can cover two bytes in the original data or
+        # a single byte if things happen to be aligned. The very last entry might
+        # not be aligned so take care to trim the binary data to size and pad with
+        # zeros in the row data. Bit aligned data is somewhat tricky.
+        #
+        # Example of data cut. Data cut represented in x's.
+        # '|' represents byte boundary.
+        # data = ...0XX|XXXXXX00|000... => XXXXXXXX
+        # 		or
+        # data = ...0XX|XXXX0000|000... => XXXXXX00
+        #   or
+        # data = ...000|XXXXXXXX|000... => XXXXXXXX
+        #   or
+        # data = ...000|00XXXX00|000... => XXXX0000
+        #
+        dataList = []
+        bitRange = self._getBitRange(row, bitDepth, metrics)
+        stepRange = bitRange + (8,)
+        for curBit in range(*stepRange):
+            endBit = min(curBit + 8, bitRange[1])
+            numBits = endBit - curBit
+            cutPoint = curBit % 8
+            firstByteLoc = curBit // 8
+            secondByteLoc = endBit // 8
+            if firstByteLoc < secondByteLoc:
+                numBitsCut = 8 - cutPoint
+            else:
+                numBitsCut = endBit - curBit
+            curByte = _reverseBytes(self.imageData[firstByteLoc])
+            firstHalf = byteord(curByte) >> cutPoint
+            firstHalf = ((1 << numBitsCut) - 1) & firstHalf
+            newByte = firstHalf
+            if firstByteLoc < secondByteLoc and secondByteLoc < len(self.imageData):
+                curByte = _reverseBytes(self.imageData[secondByteLoc])
+                secondHalf = byteord(curByte) << numBitsCut
+                newByte = (firstHalf | secondHalf) & ((1 << numBits) - 1)
+            dataList.append(bytechr(newByte))
+
+        # The way the data is kept is opposite the algorithm used.
+        data = bytesjoin(dataList)
+        if not reverseBytes:
+            data = _reverseBytes(data)
+        return data
+
+    def setRows(self, dataRows, bitDepth=1, metrics=None, reverseBytes=False):
+        if metrics is None:
+            metrics = self.metrics
+        if not reverseBytes:
+            dataRows = list(map(_reverseBytes, dataRows))
+
+        # Keep track of a list of ordinal values as they are easier to modify
+        # than a list of strings. Map to actual strings later.
+        numBytes = (self._getBitRange(len(dataRows), bitDepth, metrics)[0] + 7) // 8
+        ordDataList = [0] * numBytes
+        for row, data in enumerate(dataRows):
+            bitRange = self._getBitRange(row, bitDepth, metrics)
+            stepRange = bitRange + (8,)
+            for curBit, curByte in zip(range(*stepRange), data):
+                endBit = min(curBit + 8, bitRange[1])
+                cutPoint = curBit % 8
+                firstByteLoc = curBit // 8
+                secondByteLoc = endBit // 8
+                if firstByteLoc < secondByteLoc:
+                    numBitsCut = 8 - cutPoint
+                else:
+                    numBitsCut = endBit - curBit
+                curByte = byteord(curByte)
+                firstByte = curByte & ((1 << numBitsCut) - 1)
+                ordDataList[firstByteLoc] |= firstByte << cutPoint
+                if firstByteLoc < secondByteLoc and secondByteLoc < numBytes:
+                    secondByte = (curByte >> numBitsCut) & ((1 << 8 - numBitsCut) - 1)
+                    ordDataList[secondByteLoc] |= secondByte
+
+        # Save the image data with the bits going the correct way.
+        self.imageData = _reverseBytes(bytesjoin(map(bytechr, ordDataList)))
+
+
+class ByteAlignedBitmapMixin(object):
+    def _getByteRange(self, row, bitDepth, metrics):
+        rowBytes = (bitDepth * metrics.width + 7) // 8
+        byteOffset = row * rowBytes
+        return (byteOffset, byteOffset + rowBytes)
+
+    def getRow(self, row, bitDepth=1, metrics=None, reverseBytes=False):
+        if metrics is None:
+            metrics = self.metrics
+        assert 0 <= row and row < metrics.height, "Illegal row access in bitmap"
+        byteRange = self._getByteRange(row, bitDepth, metrics)
+        data = self.imageData[slice(*byteRange)]
+        if reverseBytes:
+            data = _reverseBytes(data)
+        return data
+
+    def setRows(self, dataRows, bitDepth=1, metrics=None, reverseBytes=False):
+        if metrics is None:
+            metrics = self.metrics
+        if reverseBytes:
+            dataRows = map(_reverseBytes, dataRows)
+        self.imageData = bytesjoin(dataRows)
+
+
+class ebdt_bitmap_format_1(
+    ByteAlignedBitmapMixin, BitmapPlusSmallMetricsMixin, BitmapGlyph
+):
+    def decompile(self):
+        self.metrics = SmallGlyphMetrics()
+        dummy, data = sstruct.unpack2(smallGlyphMetricsFormat, self.data, self.metrics)
+        self.imageData = data
+
+    def compile(self, ttFont):
+        data = sstruct.pack(smallGlyphMetricsFormat, self.metrics)
+        return data + self.imageData
+
+
+class ebdt_bitmap_format_2(
+    BitAlignedBitmapMixin, BitmapPlusSmallMetricsMixin, BitmapGlyph
+):
+    def decompile(self):
+        self.metrics = SmallGlyphMetrics()
+        dummy, data = sstruct.unpack2(smallGlyphMetricsFormat, self.data, self.metrics)
+        self.imageData = data
+
+    def compile(self, ttFont):
+        data = sstruct.pack(smallGlyphMetricsFormat, self.metrics)
+        return data + self.imageData
+
+
+class ebdt_bitmap_format_5(BitAlignedBitmapMixin, BitmapGlyph):
+    def decompile(self):
+        self.imageData = self.data
+
+    def compile(self, ttFont):
+        return self.imageData
+
+
+class ebdt_bitmap_format_6(
+    ByteAlignedBitmapMixin, BitmapPlusBigMetricsMixin, BitmapGlyph
+):
+    def decompile(self):
+        self.metrics = BigGlyphMetrics()
+        dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics)
+        self.imageData = data
+
+    def compile(self, ttFont):
+        data = sstruct.pack(bigGlyphMetricsFormat, self.metrics)
+        return data + self.imageData
+
+
+class ebdt_bitmap_format_7(
+    BitAlignedBitmapMixin, BitmapPlusBigMetricsMixin, BitmapGlyph
+):
+    def decompile(self):
+        self.metrics = BigGlyphMetrics()
+        dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics)
+        self.imageData = data
+
+    def compile(self, ttFont):
+        data = sstruct.pack(bigGlyphMetricsFormat, self.metrics)
+        return data + self.imageData
+
+
+class ComponentBitmapGlyph(BitmapGlyph):
+    def toXML(self, strikeIndex, glyphName, writer, ttFont):
+        writer.begintag(self.__class__.__name__, [("name", glyphName)])
+        writer.newline()
+
+        self.writeMetrics(writer, ttFont)
+
+        writer.begintag("components")
+        writer.newline()
+        for curComponent in self.componentArray:
+            curComponent.toXML(writer, ttFont)
+        writer.endtag("components")
+        writer.newline()
+
+        writer.endtag(self.__class__.__name__)
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        self.readMetrics(name, attrs, content, ttFont)
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attr, content = element
+            if name == "components":
+                self.componentArray = []
+                for compElement in content:
+                    if not isinstance(compElement, tuple):
+                        continue
+                    name, attrs, content = compElement
+                    if name == "ebdtComponent":
+                        curComponent = EbdtComponent()
+                        curComponent.fromXML(name, attrs, content, ttFont)
+                        self.componentArray.append(curComponent)
+                    else:
+                        log.warning("'%s' being ignored in component array.", name)
+
+
+class ebdt_bitmap_format_8(BitmapPlusSmallMetricsMixin, ComponentBitmapGlyph):
+    def decompile(self):
+        self.metrics = SmallGlyphMetrics()
+        dummy, data = sstruct.unpack2(smallGlyphMetricsFormat, self.data, self.metrics)
+        data = data[1:]
+
+        (numComponents,) = struct.unpack(">H", data[:2])
+        data = data[2:]
+        self.componentArray = []
+        for i in range(numComponents):
+            curComponent = EbdtComponent()
+            dummy, data = sstruct.unpack2(ebdtComponentFormat, data, curComponent)
+            curComponent.name = self.ttFont.getGlyphName(curComponent.glyphCode)
+            self.componentArray.append(curComponent)
+
+    def compile(self, ttFont):
+        dataList = []
+        dataList.append(sstruct.pack(smallGlyphMetricsFormat, self.metrics))
+        dataList.append(b"\0")
+        dataList.append(struct.pack(">H", len(self.componentArray)))
+        for curComponent in self.componentArray:
+            curComponent.glyphCode = ttFont.getGlyphID(curComponent.name)
+            dataList.append(sstruct.pack(ebdtComponentFormat, curComponent))
+        return bytesjoin(dataList)
+
+
+class ebdt_bitmap_format_9(BitmapPlusBigMetricsMixin, ComponentBitmapGlyph):
+    def decompile(self):
+        self.metrics = BigGlyphMetrics()
+        dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics)
+        (numComponents,) = struct.unpack(">H", data[:2])
+        data = data[2:]
+        self.componentArray = []
+        for i in range(numComponents):
+            curComponent = EbdtComponent()
+            dummy, data = sstruct.unpack2(ebdtComponentFormat, data, curComponent)
+            curComponent.name = self.ttFont.getGlyphName(curComponent.glyphCode)
+            self.componentArray.append(curComponent)
+
+    def compile(self, ttFont):
+        dataList = []
+        dataList.append(sstruct.pack(bigGlyphMetricsFormat, self.metrics))
+        dataList.append(struct.pack(">H", len(self.componentArray)))
+        for curComponent in self.componentArray:
+            curComponent.glyphCode = ttFont.getGlyphID(curComponent.name)
+            dataList.append(sstruct.pack(ebdtComponentFormat, curComponent))
+        return bytesjoin(dataList)
+
+
+# Dictionary of bitmap formats to the class representing that format
+# currently only the ones listed in this map are the ones supported.
+ebdt_bitmap_classes = {
+    1: ebdt_bitmap_format_1,
+    2: ebdt_bitmap_format_2,
+    5: ebdt_bitmap_format_5,
+    6: ebdt_bitmap_format_6,
+    7: ebdt_bitmap_format_7,
+    8: ebdt_bitmap_format_8,
+    9: ebdt_bitmap_format_9,
+}

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/E_B_L_C_.py

@@ -0,0 +1,717 @@
+from fontTools.misc import sstruct
+from . import DefaultTable
+from fontTools.misc.textTools import bytesjoin, safeEval
+from .BitmapGlyphMetrics import (
+    BigGlyphMetrics,
+    bigGlyphMetricsFormat,
+    SmallGlyphMetrics,
+    smallGlyphMetricsFormat,
+)
+import struct
+import itertools
+from collections import deque
+import logging
+
+log = logging.getLogger(__name__)
+
+eblcHeaderFormat = """
+	> # big endian
+	version:  16.16F
+	numSizes: I
+"""
+# The table format string is split to handle sbitLineMetrics simply.
+bitmapSizeTableFormatPart1 = """
+	> # big endian
+	indexSubTableArrayOffset: I
+	indexTablesSize:          I
+	numberOfIndexSubTables:   I
+	colorRef:                 I
+"""
+# The compound type for hori and vert.
+sbitLineMetricsFormat = """
+	> # big endian
+	ascender:              b
+	descender:             b
+	widthMax:              B
+	caretSlopeNumerator:   b
+	caretSlopeDenominator: b
+	caretOffset:           b
+	minOriginSB:           b
+	minAdvanceSB:          b
+	maxBeforeBL:           b
+	minAfterBL:            b
+	pad1:                  b
+	pad2:                  b
+"""
+# hori and vert go between the two parts.
+bitmapSizeTableFormatPart2 = """
+	> # big endian
+	startGlyphIndex: H
+	endGlyphIndex:   H
+	ppemX:           B
+	ppemY:           B
+	bitDepth:        B
+	flags:           b
+"""
+
+indexSubTableArrayFormat = ">HHL"
+indexSubTableArraySize = struct.calcsize(indexSubTableArrayFormat)
+
+indexSubHeaderFormat = ">HHL"
+indexSubHeaderSize = struct.calcsize(indexSubHeaderFormat)
+
+codeOffsetPairFormat = ">HH"
+codeOffsetPairSize = struct.calcsize(codeOffsetPairFormat)
+
+
+class table_E_B_L_C_(DefaultTable.DefaultTable):
+    """Embedded Bitmap Location table
+
+    The ``EBLC`` table contains the locations of monochrome or grayscale
+    bitmaps for glyphs. It must be used in concert with the ``EBDT`` table.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/eblc
+    """
+
+    dependencies = ["EBDT"]
+
+    # This method can be overridden in subclasses to support new formats
+    # without changing the other implementation. Also can be used as a
+    # convenience method for coverting a font file to an alternative format.
+    def getIndexFormatClass(self, indexFormat):
+        return eblc_sub_table_classes[indexFormat]
+
+    def decompile(self, data, ttFont):
+        # Save the original data because offsets are from the start of the table.
+        origData = data
+        i = 0
+
+        dummy = sstruct.unpack(eblcHeaderFormat, data[:8], self)
+        i += 8
+
+        self.strikes = []
+        for curStrikeIndex in range(self.numSizes):
+            curStrike = Strike()
+            self.strikes.append(curStrike)
+            curTable = curStrike.bitmapSizeTable
+            dummy = sstruct.unpack2(
+                bitmapSizeTableFormatPart1, data[i : i + 16], curTable
+            )
+            i += 16
+            for metric in ("hori", "vert"):
+                metricObj = SbitLineMetrics()
+                vars(curTable)[metric] = metricObj
+                dummy = sstruct.unpack2(
+                    sbitLineMetricsFormat, data[i : i + 12], metricObj
+                )
+                i += 12
+            dummy = sstruct.unpack(
+                bitmapSizeTableFormatPart2, data[i : i + 8], curTable
+            )
+            i += 8
+
+        for curStrike in self.strikes:
+            curTable = curStrike.bitmapSizeTable
+            for subtableIndex in range(curTable.numberOfIndexSubTables):
+                i = (
+                    curTable.indexSubTableArrayOffset
+                    + subtableIndex * indexSubTableArraySize
+                )
+
+                tup = struct.unpack(
+                    indexSubTableArrayFormat, data[i : i + indexSubTableArraySize]
+                )
+                firstGlyphIndex, lastGlyphIndex, additionalOffsetToIndexSubtable = tup
+                i = curTable.indexSubTableArrayOffset + additionalOffsetToIndexSubtable
+
+                tup = struct.unpack(
+                    indexSubHeaderFormat, data[i : i + indexSubHeaderSize]
+                )
+                indexFormat, imageFormat, imageDataOffset = tup
+
+                indexFormatClass = self.getIndexFormatClass(indexFormat)
+                indexSubTable = indexFormatClass(data[i + indexSubHeaderSize :], ttFont)
+                indexSubTable.firstGlyphIndex = firstGlyphIndex
+                indexSubTable.lastGlyphIndex = lastGlyphIndex
+                indexSubTable.additionalOffsetToIndexSubtable = (
+                    additionalOffsetToIndexSubtable
+                )
+                indexSubTable.indexFormat = indexFormat
+                indexSubTable.imageFormat = imageFormat
+                indexSubTable.imageDataOffset = imageDataOffset
+                indexSubTable.decompile()  # https://github.com/fonttools/fonttools/issues/317
+                curStrike.indexSubTables.append(indexSubTable)
+
+    def compile(self, ttFont):
+        dataList = []
+        self.numSizes = len(self.strikes)
+        dataList.append(sstruct.pack(eblcHeaderFormat, self))
+
+        # Data size of the header + bitmapSizeTable needs to be calculated
+        # in order to form offsets. This value will hold the size of the data
+        # in dataList after all the data is consolidated in dataList.
+        dataSize = len(dataList[0])
+
+        # The table will be structured in the following order:
+        # (0) header
+        # (1) Each bitmapSizeTable [1 ... self.numSizes]
+        # (2) Alternate between indexSubTableArray and indexSubTable
+        #     for each bitmapSizeTable present.
+        #
+        # The issue is maintaining the proper offsets when table information
+        # gets moved around. All offsets and size information must be recalculated
+        # when building the table to allow editing within ttLib and also allow easy
+        # import/export to and from XML. All of this offset information is lost
+        # when exporting to XML so everything must be calculated fresh so importing
+        # from XML will work cleanly. Only byte offset and size information is
+        # calculated fresh. Count information like numberOfIndexSubTables is
+        # checked through assertions. If the information in this table was not
+        # touched or was changed properly then these types of values should match.
+        #
+        # The table will be rebuilt the following way:
+        # (0) Precompute the size of all the bitmapSizeTables. This is needed to
+        #     compute the offsets properly.
+        # (1) For each bitmapSizeTable compute the indexSubTable and
+        #    	indexSubTableArray pair. The indexSubTable must be computed first
+        #     so that the offset information in indexSubTableArray can be
+        #     calculated. Update the data size after each pairing.
+        # (2) Build each bitmapSizeTable.
+        # (3) Consolidate all the data into the main dataList in the correct order.
+
+        for _ in self.strikes:
+            dataSize += sstruct.calcsize(bitmapSizeTableFormatPart1)
+            dataSize += len(("hori", "vert")) * sstruct.calcsize(sbitLineMetricsFormat)
+            dataSize += sstruct.calcsize(bitmapSizeTableFormatPart2)
+
+        indexSubTablePairDataList = []
+        for curStrike in self.strikes:
+            curTable = curStrike.bitmapSizeTable
+            curTable.numberOfIndexSubTables = len(curStrike.indexSubTables)
+            curTable.indexSubTableArrayOffset = dataSize
+
+            # Precompute the size of the indexSubTableArray. This information
+            # is important for correctly calculating the new value for
+            # additionalOffsetToIndexSubtable.
+            sizeOfSubTableArray = (
+                curTable.numberOfIndexSubTables * indexSubTableArraySize
+            )
+            lowerBound = dataSize
+            dataSize += sizeOfSubTableArray
+            upperBound = dataSize
+
+            indexSubTableDataList = []
+            for indexSubTable in curStrike.indexSubTables:
+                indexSubTable.additionalOffsetToIndexSubtable = (
+                    dataSize - curTable.indexSubTableArrayOffset
+                )
+                glyphIds = list(map(ttFont.getGlyphID, indexSubTable.names))
+                indexSubTable.firstGlyphIndex = min(glyphIds)
+                indexSubTable.lastGlyphIndex = max(glyphIds)
+                data = indexSubTable.compile(ttFont)
+                indexSubTableDataList.append(data)
+                dataSize += len(data)
+            curTable.startGlyphIndex = min(
+                ist.firstGlyphIndex for ist in curStrike.indexSubTables
+            )
+            curTable.endGlyphIndex = max(
+                ist.lastGlyphIndex for ist in curStrike.indexSubTables
+            )
+
+            for i in curStrike.indexSubTables:
+                data = struct.pack(
+                    indexSubHeaderFormat,
+                    i.firstGlyphIndex,
+                    i.lastGlyphIndex,
+                    i.additionalOffsetToIndexSubtable,
+                )
+                indexSubTablePairDataList.append(data)
+            indexSubTablePairDataList.extend(indexSubTableDataList)
+            curTable.indexTablesSize = dataSize - curTable.indexSubTableArrayOffset
+
+        for curStrike in self.strikes:
+            curTable = curStrike.bitmapSizeTable
+            data = sstruct.pack(bitmapSizeTableFormatPart1, curTable)
+            dataList.append(data)
+            for metric in ("hori", "vert"):
+                metricObj = vars(curTable)[metric]
+                data = sstruct.pack(sbitLineMetricsFormat, metricObj)
+                dataList.append(data)
+            data = sstruct.pack(bitmapSizeTableFormatPart2, curTable)
+            dataList.append(data)
+        dataList.extend(indexSubTablePairDataList)
+
+        return bytesjoin(dataList)
+
+    def toXML(self, writer, ttFont):
+        writer.simpletag("header", [("version", self.version)])
+        writer.newline()
+        for curIndex, curStrike in enumerate(self.strikes):
+            curStrike.toXML(curIndex, writer, ttFont)
+
+    def fromXML(self, name, attrs, content, ttFont):
+        if name == "header":
+            self.version = safeEval(attrs["version"])
+        elif name == "strike":
+            if not hasattr(self, "strikes"):
+                self.strikes = []
+            strikeIndex = safeEval(attrs["index"])
+            curStrike = Strike()
+            curStrike.fromXML(name, attrs, content, ttFont, self)
+
+            # Grow the strike array to the appropriate size. The XML format
+            # allows for the strike index value to be out of order.
+            if strikeIndex >= len(self.strikes):
+                self.strikes += [None] * (strikeIndex + 1 - len(self.strikes))
+            assert self.strikes[strikeIndex] is None, "Duplicate strike EBLC indices."
+            self.strikes[strikeIndex] = curStrike
+
+
+class Strike(object):
+    def __init__(self):
+        self.bitmapSizeTable = BitmapSizeTable()
+        self.indexSubTables = []
+
+    def toXML(self, strikeIndex, writer, ttFont):
+        writer.begintag("strike", [("index", strikeIndex)])
+        writer.newline()
+        self.bitmapSizeTable.toXML(writer, ttFont)
+        writer.comment(
+            "GlyphIds are written but not read. The firstGlyphIndex and\nlastGlyphIndex values will be recalculated by the compiler."
+        )
+        writer.newline()
+        for indexSubTable in self.indexSubTables:
+            indexSubTable.toXML(writer, ttFont)
+        writer.endtag("strike")
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont, locator):
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name == "bitmapSizeTable":
+                self.bitmapSizeTable.fromXML(name, attrs, content, ttFont)
+            elif name.startswith(_indexSubTableSubclassPrefix):
+                indexFormat = safeEval(name[len(_indexSubTableSubclassPrefix) :])
+                indexFormatClass = locator.getIndexFormatClass(indexFormat)
+                indexSubTable = indexFormatClass(None, None)
+                indexSubTable.indexFormat = indexFormat
+                indexSubTable.fromXML(name, attrs, content, ttFont)
+                self.indexSubTables.append(indexSubTable)
+
+
+class BitmapSizeTable(object):
+    # Returns all the simple metric names that bitmap size table
+    # cares about in terms of XML creation.
+    def _getXMLMetricNames(self):
+        dataNames = sstruct.getformat(bitmapSizeTableFormatPart1)[1]
+        dataNames = {**dataNames, **sstruct.getformat(bitmapSizeTableFormatPart2)[1]}
+        # Skip the first 3 data names because they are byte offsets and counts.
+        return list(dataNames.keys())[3:]
+
+    def toXML(self, writer, ttFont):
+        writer.begintag("bitmapSizeTable")
+        writer.newline()
+        for metric in ("hori", "vert"):
+            getattr(self, metric).toXML(metric, writer, ttFont)
+        for metricName in self._getXMLMetricNames():
+            writer.simpletag(metricName, value=getattr(self, metricName))
+            writer.newline()
+        writer.endtag("bitmapSizeTable")
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        # Create a lookup for all the simple names that make sense to
+        # bitmap size table. Only read the information from these names.
+        dataNames = set(self._getXMLMetricNames())
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name == "sbitLineMetrics":
+                direction = attrs["direction"]
+                assert direction in (
+                    "hori",
+                    "vert",
+                ), "SbitLineMetrics direction specified invalid."
+                metricObj = SbitLineMetrics()
+                metricObj.fromXML(name, attrs, content, ttFont)
+                vars(self)[direction] = metricObj
+            elif name in dataNames:
+                vars(self)[name] = safeEval(attrs["value"])
+            else:
+                log.warning("unknown name '%s' being ignored in BitmapSizeTable.", name)
+
+
+class SbitLineMetrics(object):
+    def toXML(self, name, writer, ttFont):
+        writer.begintag("sbitLineMetrics", [("direction", name)])
+        writer.newline()
+        for metricName in sstruct.getformat(sbitLineMetricsFormat)[1]:
+            writer.simpletag(metricName, value=getattr(self, metricName))
+            writer.newline()
+        writer.endtag("sbitLineMetrics")
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        metricNames = set(sstruct.getformat(sbitLineMetricsFormat)[1])
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name in metricNames:
+                vars(self)[name] = safeEval(attrs["value"])
+
+
+# Important information about the naming scheme. Used for identifying subtables.
+_indexSubTableSubclassPrefix = "eblc_index_sub_table_"
+
+
+class EblcIndexSubTable(object):
+    def __init__(self, data, ttFont):
+        self.data = data
+        self.ttFont = ttFont
+        # TODO Currently non-lazy decompiling doesn't work for this class...
+        # if not ttFont.lazy:
+        # 	self.decompile()
+        # 	del self.data, self.ttFont
+
+    def __getattr__(self, attr):
+        # Allow lazy decompile.
+        if attr[:2] == "__":
+            raise AttributeError(attr)
+        if attr == "data":
+            raise AttributeError(attr)
+        self.decompile()
+        return getattr(self, attr)
+
+    def ensureDecompiled(self, recurse=False):
+        if hasattr(self, "data"):
+            self.decompile()
+
+    # This method just takes care of the indexSubHeader. Implementing subclasses
+    # should call it to compile the indexSubHeader and then continue compiling
+    # the remainder of their unique format.
+    def compile(self, ttFont):
+        return struct.pack(
+            indexSubHeaderFormat,
+            self.indexFormat,
+            self.imageFormat,
+            self.imageDataOffset,
+        )
+
+    # Creates the XML for bitmap glyphs. Each index sub table basically makes
+    # the same XML except for specific metric information that is written
+    # out via a method call that a subclass implements optionally.
+    def toXML(self, writer, ttFont):
+        writer.begintag(
+            self.__class__.__name__,
+            [
+                ("imageFormat", self.imageFormat),
+                ("firstGlyphIndex", self.firstGlyphIndex),
+                ("lastGlyphIndex", self.lastGlyphIndex),
+            ],
+        )
+        writer.newline()
+        self.writeMetrics(writer, ttFont)
+        # Write out the names as thats all thats needed to rebuild etc.
+        # For font debugging of consecutive formats the ids are also written.
+        # The ids are not read when moving from the XML format.
+        glyphIds = map(ttFont.getGlyphID, self.names)
+        for glyphName, glyphId in zip(self.names, glyphIds):
+            writer.simpletag("glyphLoc", name=glyphName, id=glyphId)
+            writer.newline()
+        writer.endtag(self.__class__.__name__)
+        writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        # Read all the attributes. Even though the glyph indices are
+        # recalculated, they are still read in case there needs to
+        # be an immediate export of the data.
+        self.imageFormat = safeEval(attrs["imageFormat"])
+        self.firstGlyphIndex = safeEval(attrs["firstGlyphIndex"])
+        self.lastGlyphIndex = safeEval(attrs["lastGlyphIndex"])
+
+        self.readMetrics(name, attrs, content, ttFont)
+
+        self.names = []
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name == "glyphLoc":
+                self.names.append(attrs["name"])
+
+    # A helper method that writes the metrics for the index sub table. It also
+    # is responsible for writing the image size for fixed size data since fixed
+    # size is not recalculated on compile. Default behavior is to do nothing.
+    def writeMetrics(self, writer, ttFont):
+        pass
+
+    # A helper method that is the inverse of writeMetrics.
+    def readMetrics(self, name, attrs, content, ttFont):
+        pass
+
+    # This method is for fixed glyph data sizes. There are formats where
+    # the glyph data is fixed but are actually composite glyphs. To handle
+    # this the font spec in indexSubTable makes the data the size of the
+    # fixed size by padding the component arrays. This function abstracts
+    # out this padding process. Input is data unpadded. Output is data
+    # padded only in fixed formats. Default behavior is to return the data.
+    def padBitmapData(self, data):
+        return data
+
+    # Remove any of the glyph locations and names that are flagged as skipped.
+    # This only occurs in formats {1,3}.
+    def removeSkipGlyphs(self):
+        # Determines if a name, location pair is a valid data location.
+        # Skip glyphs are marked when the size is equal to zero.
+        def isValidLocation(args):
+            name, (startByte, endByte) = args
+            return startByte < endByte
+
+        # Remove all skip glyphs.
+        dataPairs = list(filter(isValidLocation, zip(self.names, self.locations)))
+        self.names, self.locations = list(map(list, zip(*dataPairs)))
+
+
+# A closure for creating a custom mixin. This is done because formats 1 and 3
+# are very similar. The only difference between them is the size per offset
+# value. Code put in here should handle both cases generally.
+def _createOffsetArrayIndexSubTableMixin(formatStringForDataType):
+    # Prep the data size for the offset array data format.
+    dataFormat = ">" + formatStringForDataType
+    offsetDataSize = struct.calcsize(dataFormat)
+
+    class OffsetArrayIndexSubTableMixin(object):
+        def decompile(self):
+            numGlyphs = self.lastGlyphIndex - self.firstGlyphIndex + 1
+            indexingOffsets = [
+                glyphIndex * offsetDataSize for glyphIndex in range(numGlyphs + 2)
+            ]
+            indexingLocations = zip(indexingOffsets, indexingOffsets[1:])
+            offsetArray = [
+                struct.unpack(dataFormat, self.data[slice(*loc)])[0]
+                for loc in indexingLocations
+            ]
+
+            glyphIds = list(range(self.firstGlyphIndex, self.lastGlyphIndex + 1))
+            modifiedOffsets = [offset + self.imageDataOffset for offset in offsetArray]
+            self.locations = list(zip(modifiedOffsets, modifiedOffsets[1:]))
+
+            self.names = list(map(self.ttFont.getGlyphName, glyphIds))
+            self.removeSkipGlyphs()
+            del self.data, self.ttFont
+
+        def compile(self, ttFont):
+            # First make sure that all the data lines up properly. Formats 1 and 3
+            # must have all its data lined up consecutively. If not this will fail.
+            for curLoc, nxtLoc in zip(self.locations, self.locations[1:]):
+                assert (
+                    curLoc[1] == nxtLoc[0]
+                ), "Data must be consecutive in indexSubTable offset formats"
+
+            glyphIds = list(map(ttFont.getGlyphID, self.names))
+            # Make sure that all ids are sorted strictly increasing.
+            assert all(glyphIds[i] < glyphIds[i + 1] for i in range(len(glyphIds) - 1))
+
+            # Run a simple algorithm to add skip glyphs to the data locations at
+            # the places where an id is not present.
+            idQueue = deque(glyphIds)
+            locQueue = deque(self.locations)
+            allGlyphIds = list(range(self.firstGlyphIndex, self.lastGlyphIndex + 1))
+            allLocations = []
+            for curId in allGlyphIds:
+                if curId != idQueue[0]:
+                    allLocations.append((locQueue[0][0], locQueue[0][0]))
+                else:
+                    idQueue.popleft()
+                    allLocations.append(locQueue.popleft())
+
+            # Now that all the locations are collected, pack them appropriately into
+            # offsets. This is the form where offset[i] is the location and
+            # offset[i+1]-offset[i] is the size of the data location.
+            offsets = list(allLocations[0]) + [loc[1] for loc in allLocations[1:]]
+            # Image data offset must be less than or equal to the minimum of locations.
+            # This offset may change the value for round tripping but is safer and
+            # allows imageDataOffset to not be required to be in the XML version.
+            self.imageDataOffset = min(offsets)
+            offsetArray = [offset - self.imageDataOffset for offset in offsets]
+
+            dataList = [EblcIndexSubTable.compile(self, ttFont)]
+            dataList += [
+                struct.pack(dataFormat, offsetValue) for offsetValue in offsetArray
+            ]
+            # Take care of any padding issues. Only occurs in format 3.
+            if offsetDataSize * len(offsetArray) % 4 != 0:
+                dataList.append(struct.pack(dataFormat, 0))
+            return bytesjoin(dataList)
+
+    return OffsetArrayIndexSubTableMixin
+
+
+# A Mixin for functionality shared between the different kinds
+# of fixed sized data handling. Both kinds have big metrics so
+# that kind of special processing is also handled in this mixin.
+class FixedSizeIndexSubTableMixin(object):
+    def writeMetrics(self, writer, ttFont):
+        writer.simpletag("imageSize", value=self.imageSize)
+        writer.newline()
+        self.metrics.toXML(writer, ttFont)
+
+    def readMetrics(self, name, attrs, content, ttFont):
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name == "imageSize":
+                self.imageSize = safeEval(attrs["value"])
+            elif name == BigGlyphMetrics.__name__:
+                self.metrics = BigGlyphMetrics()
+                self.metrics.fromXML(name, attrs, content, ttFont)
+            elif name == SmallGlyphMetrics.__name__:
+                log.warning(
+                    "SmallGlyphMetrics being ignored in format %d.", self.indexFormat
+                )
+
+    def padBitmapData(self, data):
+        # Make sure that the data isn't bigger than the fixed size.
+        assert len(data) <= self.imageSize, (
+            "Data in indexSubTable format %d must be less than the fixed size."
+            % self.indexFormat
+        )
+        # Pad the data so that it matches the fixed size.
+        pad = (self.imageSize - len(data)) * b"\0"
+        return data + pad
+
+
+class eblc_index_sub_table_1(
+    _createOffsetArrayIndexSubTableMixin("L"), EblcIndexSubTable
+):
+    pass
+
+
+class eblc_index_sub_table_2(FixedSizeIndexSubTableMixin, EblcIndexSubTable):
+    def decompile(self):
+        (self.imageSize,) = struct.unpack(">L", self.data[:4])
+        self.metrics = BigGlyphMetrics()
+        sstruct.unpack2(bigGlyphMetricsFormat, self.data[4:], self.metrics)
+        glyphIds = list(range(self.firstGlyphIndex, self.lastGlyphIndex + 1))
+        offsets = [
+            self.imageSize * i + self.imageDataOffset for i in range(len(glyphIds) + 1)
+        ]
+        self.locations = list(zip(offsets, offsets[1:]))
+        self.names = list(map(self.ttFont.getGlyphName, glyphIds))
+        del self.data, self.ttFont
+
+    def compile(self, ttFont):
+        glyphIds = list(map(ttFont.getGlyphID, self.names))
+        # Make sure all the ids are consecutive. This is required by Format 2.
+        assert glyphIds == list(
+            range(self.firstGlyphIndex, self.lastGlyphIndex + 1)
+        ), "Format 2 ids must be consecutive."
+        self.imageDataOffset = min(next(iter(zip(*self.locations))))
+
+        dataList = [EblcIndexSubTable.compile(self, ttFont)]
+        dataList.append(struct.pack(">L", self.imageSize))
+        dataList.append(sstruct.pack(bigGlyphMetricsFormat, self.metrics))
+        return bytesjoin(dataList)
+
+
+class eblc_index_sub_table_3(
+    _createOffsetArrayIndexSubTableMixin("H"), EblcIndexSubTable
+):
+    pass
+
+
+class eblc_index_sub_table_4(EblcIndexSubTable):
+    def decompile(self):
+        (numGlyphs,) = struct.unpack(">L", self.data[:4])
+        data = self.data[4:]
+        indexingOffsets = [
+            glyphIndex * codeOffsetPairSize for glyphIndex in range(numGlyphs + 2)
+        ]
+        indexingLocations = zip(indexingOffsets, indexingOffsets[1:])
+        glyphArray = [
+            struct.unpack(codeOffsetPairFormat, data[slice(*loc)])
+            for loc in indexingLocations
+        ]
+        glyphIds, offsets = list(map(list, zip(*glyphArray)))
+        # There are one too many glyph ids. Get rid of the last one.
+        glyphIds.pop()
+
+        offsets = [offset + self.imageDataOffset for offset in offsets]
+        self.locations = list(zip(offsets, offsets[1:]))
+        self.names = list(map(self.ttFont.getGlyphName, glyphIds))
+        del self.data, self.ttFont
+
+    def compile(self, ttFont):
+        # First make sure that all the data lines up properly. Format 4
+        # must have all its data lined up consecutively. If not this will fail.
+        for curLoc, nxtLoc in zip(self.locations, self.locations[1:]):
+            assert (
+                curLoc[1] == nxtLoc[0]
+            ), "Data must be consecutive in indexSubTable format 4"
+
+        offsets = list(self.locations[0]) + [loc[1] for loc in self.locations[1:]]
+        # Image data offset must be less than or equal to the minimum of locations.
+        # Resetting this offset may change the value for round tripping but is safer
+        # and allows imageDataOffset to not be required to be in the XML version.
+        self.imageDataOffset = min(offsets)
+        offsets = [offset - self.imageDataOffset for offset in offsets]
+        glyphIds = list(map(ttFont.getGlyphID, self.names))
+        # Create an iterator over the ids plus a padding value.
+        idsPlusPad = list(itertools.chain(glyphIds, [0]))
+
+        dataList = [EblcIndexSubTable.compile(self, ttFont)]
+        dataList.append(struct.pack(">L", len(glyphIds)))
+        tmp = [
+            struct.pack(codeOffsetPairFormat, *cop) for cop in zip(idsPlusPad, offsets)
+        ]
+        dataList += tmp
+        data = bytesjoin(dataList)
+        return data
+
+
+class eblc_index_sub_table_5(FixedSizeIndexSubTableMixin, EblcIndexSubTable):
+    def decompile(self):
+        self.origDataLen = 0
+        (self.imageSize,) = struct.unpack(">L", self.data[:4])
+        data = self.data[4:]
+        self.metrics, data = sstruct.unpack2(
+            bigGlyphMetricsFormat, data, BigGlyphMetrics()
+        )
+        (numGlyphs,) = struct.unpack(">L", data[:4])
+        data = data[4:]
+        glyphIds = [
+            struct.unpack(">H", data[2 * i : 2 * (i + 1)])[0] for i in range(numGlyphs)
+        ]
+
+        offsets = [
+            self.imageSize * i + self.imageDataOffset for i in range(len(glyphIds) + 1)
+        ]
+        self.locations = list(zip(offsets, offsets[1:]))
+        self.names = list(map(self.ttFont.getGlyphName, glyphIds))
+        del self.data, self.ttFont
+
+    def compile(self, ttFont):
+        self.imageDataOffset = min(next(iter(zip(*self.locations))))
+        dataList = [EblcIndexSubTable.compile(self, ttFont)]
+        dataList.append(struct.pack(">L", self.imageSize))
+        dataList.append(sstruct.pack(bigGlyphMetricsFormat, self.metrics))
+        glyphIds = list(map(ttFont.getGlyphID, self.names))
+        dataList.append(struct.pack(">L", len(glyphIds)))
+        dataList += [struct.pack(">H", curId) for curId in glyphIds]
+        if len(glyphIds) % 2 == 1:
+            dataList.append(struct.pack(">H", 0))
+        return bytesjoin(dataList)
+
+
+# Dictionary of indexFormat to the class representing that format.
+eblc_sub_table_classes = {
+    1: eblc_index_sub_table_1,
+    2: eblc_index_sub_table_2,
+    3: eblc_index_sub_table_3,
+    4: eblc_index_sub_table_4,
+    5: eblc_index_sub_table_5,
+}

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/E_B_S_C_.py

@@ -0,0 +1,153 @@
+from __future__ import annotations
+
+from typing import Any
+
+from fontTools.misc import sstruct
+from fontTools.misc.textTools import bytesjoin, safeEval
+from fontTools.misc.xmlWriter import XMLWriter
+from fontTools.ttLib import TTFont, TTLibError
+from fontTools.ttLib.tables import DefaultTable
+from fontTools.ttLib.tables.DefaultTable import XMLAttrs, XMLContent
+from fontTools.ttLib.tables.E_B_L_C_ import sbitLineMetricsFormat, SbitLineMetrics
+
+ebscHeaderFormat = """
+    > # big endian
+    version:  16.16F
+    numSizes: I
+"""
+
+bitmapScaleTableFormatPart2 = """
+    > # big endian
+    ppemX:           B
+    ppemY:           B
+    substitutePpemX: B
+    substitutePpemY: B
+"""
+
+
+class table_E_B_S_C_(DefaultTable.DefaultTable):
+    """
+    Embedded Bitmap Scaling Table
+
+    The ``EBSC`` table provides a mechanism for describing embedded bitmaps which are created by
+    scaling other embedded bitmaps. While this is the sort of thing that outline font technologies
+    were invented to avoid, there are cases (small sizes of Kanji, for example) where scaling a bitmap
+    produces more legible glyphs than scan-converting an outline. For this reason, the EBSC table
+    allows a font to define a bitmap strike as a scaled version of another strike.
+
+    The ``EBSC`` table is used together with the ``EBDT`` table, which provides embedded monochrome or
+    grayscale bitmap data, and the ``EBLC`` table, which provides embedded bitmap locators.
+
+    See also https://learn.microsoft.com/en-us/typography/opentype/spec/ebsc
+    """
+
+    dependencies = ["EBDT", "EBLC"]
+
+    version: float
+    numSizes: int
+    bitmapScaleTables: list[BitmapScaleTable]
+
+    def decompile(self, data: bytes, ttFont: TTFont):
+        _, data = sstruct.unpack2(ebscHeaderFormat, data, self)
+        self.bitmapScaleTables = []
+        for _ in range(self.numSizes):
+            bitmapScaleTable = BitmapScaleTable()
+            data = bitmapScaleTable.decompile(data)
+            self.bitmapScaleTables.append(bitmapScaleTable)
+
+    def compile(self, ttFont: TTFont) -> bytes:
+        self.numSizes = len(self.bitmapScaleTables)
+        dataList = [sstruct.pack(ebscHeaderFormat, self)]
+        for bitmapScaleTable in self.bitmapScaleTables:
+            dataList.append(bitmapScaleTable.compile())
+        return bytesjoin(dataList)
+
+    def toXML(self, writer: XMLWriter, ttFont: TTFont, **kwargs: Any):
+        writer.simpletag(
+            "header",
+            [("version", self.version), ("numSizes", len(self.bitmapScaleTables))],
+        )
+        writer.newline()
+        for index, bitmapScaleTable in enumerate(self.bitmapScaleTables):
+            bitmapScaleTable.toXML(index, writer, ttFont)
+
+    def fromXML(
+        self, name: str, attrs: dict[str, str], content: XMLContent, ttFont: TTFont
+    ):
+        if not hasattr(self, "bitmapScaleTables"):
+            self.bitmapScaleTables = []
+        if name == "header":
+            self.version = safeEval(attrs["version"])
+            self.numSizes = safeEval(attrs["numSizes"])
+        elif name == "bitmapScaleTable":
+            bitmapScaleTable = BitmapScaleTable()
+            bitmapScaleTable.fromXML(content, ttFont)
+            self.bitmapScaleTables.append(bitmapScaleTable)
+
+
+class BitmapScaleTable:
+    hori: SbitLineMetrics
+    vert: SbitLineMetrics
+    ppemX: int
+    ppemY: int
+    substitutePpemX: int
+    substitutePpemY: int
+
+    def __init__(
+        self,
+        hori: SbitLineMetrics | None = None,
+        vert: SbitLineMetrics | None = None,
+        ppemX: int = 0,
+        ppemY: int = 0,
+        substitutePpemX: int = 0,
+        substitutePpemY: int = 0,
+    ):
+        self.hori = hori if hori is not None else SbitLineMetrics()
+        self.vert = vert if vert is not None else SbitLineMetrics()
+        self.ppemX = ppemX
+        self.ppemY = ppemY
+        self.substitutePpemX = substitutePpemX
+        self.substitutePpemY = substitutePpemY
+
+    def decompile(self, data: bytes) -> bytes:
+        dummy, data = sstruct.unpack2(sbitLineMetricsFormat, data, self.hori)
+        dummy, data = sstruct.unpack2(sbitLineMetricsFormat, data, self.vert)
+        dummy, data = sstruct.unpack2(bitmapScaleTableFormatPart2, data, self)
+        return data
+
+    def compile(self) -> bytes:
+        dataList = [
+            sstruct.pack(sbitLineMetricsFormat, self.hori),
+            sstruct.pack(sbitLineMetricsFormat, self.vert),
+            sstruct.pack(bitmapScaleTableFormatPart2, self),
+        ]
+        return bytesjoin(dataList)
+
+    def toXML(self, index: int, writer: XMLWriter, ttFont: TTFont):
+        writer.begintag("bitmapScaleTable", [("index", index)])
+        writer.newline()
+        self.hori.toXML("hori", writer, ttFont)
+        self.vert.toXML("vert", writer, ttFont)
+        for name in sstruct.getformat(bitmapScaleTableFormatPart2)[1]:
+            writer.simpletag(name, value=getattr(self, name))
+            writer.newline()
+        writer.endtag("bitmapScaleTable")
+        writer.newline()
+
+    def fromXML(self, content: XMLContent, ttFont: TTFont):
+        dataNames = set(sstruct.getformat(bitmapScaleTableFormatPart2)[1])
+        for element in content:
+            if not isinstance(element, tuple):
+                continue
+            name, attrs, content = element
+            if name == "sbitLineMetrics":
+                direction = attrs["direction"]
+                if direction not in ("hori", "vert"):
+                    raise TTLibError(
+                        f"invalid sbitLineMetrics direction: {direction!r}"
+                    )
+                metricObj = SbitLineMetrics()
+                metricObj.fromXML(name, attrs, content, ttFont)
+                setattr(self, direction, metricObj)
+            elif name in dataNames:
+                setattr(self, name, safeEval(attrs["value"]))

.venv/lib/python3.12/site-packages/fontTools/ttLib/tables/F_F_T_M_.py

@@ -0,0 +1,52 @@
+from fontTools.misc import sstruct
+from fontTools.misc.textTools import safeEval
+from fontTools.misc.timeTools import timestampFromString, timestampToString
+from . import DefaultTable
+
+FFTMFormat = """
+		>	# big endian
+		version:        I
+		FFTimeStamp:    Q
+		sourceCreated:  Q
+		sourceModified: Q
+"""
+
+
+class table_F_F_T_M_(DefaultTable.DefaultTable):
+    """FontForge Time Stamp table
+
+    The ``FFTM`` table is used by the free-software font editor
+    FontForge to record timestamps for the creation and modification
+    of font source (.sfd) files and a timestamp for FontForge's
+    own source code.
+
+    See also https://fontforge.org/docs/techref/non-standard.html
+    """
+
+    def decompile(self, data, ttFont):
+        dummy, rest = sstruct.unpack2(FFTMFormat, data, self)
+
+    def compile(self, ttFont):
+        data = sstruct.pack(FFTMFormat, self)
+        return data
+
+    def toXML(self, writer, ttFont):
+        writer.comment(
+            "FontForge's timestamp, font source creation and modification dates"
+        )
+        writer.newline()
+        formatstring, names, fixes = sstruct.getformat(FFTMFormat)
+        for name in names:
+            value = getattr(self, name)
+            if name in ("FFTimeStamp", "sourceCreated", "sourceModified"):
+                value = timestampToString(value)
+            writer.simpletag(name, value=value)
+            writer.newline()
+
+    def fromXML(self, name, attrs, content, ttFont):
+        value = attrs["value"]
+        if name in ("FFTimeStamp", "sourceCreated", "sourceModified"):
+            value = timestampFromString(value)
+        else:
+            value = safeEval(value)
+        setattr(self, name, value)