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File size: 1,885 Bytes
2415446 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | """Render and truncate ordered transcript segments."""
from collections import deque
from collections.abc import Iterable
from .context import RenderCtx
from .segments import Segment
def render_segments(
segments: Iterable[Segment],
ctx: RenderCtx,
*,
limit_chars: int,
status: str | None,
) -> str:
rendered: list[str] = []
for segment in segments:
try:
output = segment.render(ctx)
except Exception:
continue
if output:
rendered.append(output)
status_text = f"\n\n{status}" if status else ""
prefix_marker = ctx.escape_text("... (truncated)\n")
def _join(parts: Iterable[str], add_marker: bool) -> str:
body = "\n".join(parts)
if add_marker and body:
body = prefix_marker + body
return body + status_text if (body or status_text) else status_text
candidate = _join(rendered, add_marker=False)
if len(candidate) <= limit_chars:
return candidate
parts: deque[str] = deque(rendered)
dropped = False
last_part: str | None = None
while parts:
candidate = _join(parts, add_marker=True)
if len(candidate) <= limit_chars:
return candidate
last_part = parts.popleft()
dropped = True
if dropped and last_part:
budget = limit_chars - len(prefix_marker) - len(status_text)
if budget > 20:
tail = (
"..." + last_part[-(budget - 3) :]
if len(last_part) > budget
else last_part
)
candidate = prefix_marker + tail + status_text
if len(candidate) <= limit_chars:
return candidate
if dropped:
minimal = prefix_marker + status_text.lstrip("\n")
if len(minimal) <= limit_chars:
return minimal
return status or ""
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