File size: 3,753 Bytes
985c397 | 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | # SPDX-License-Identifier: LGPL-2.1-or-later
# -*- coding: utf8 -*-
#***************************************************************************
#* Copyright (c) 2012 Keith Sloan <keith@sloan-home.co.uk> *
#* *
#* This program is free software; you can redistribute it and/or modify *
#* it under the terms of the GNU Lesser General Public License (LGPL) *
#* as published by the Free Software Foundation; either version 2 of *
#* the License, or (at your option) any later version. *
#* for detail see the LICENCE text file. *
#* *
#* This program is distributed in the hope that it will be useful, *
#* but WITHOUT ANY WARRANTY; without even the implied warranty of *
#* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
#* GNU Library General Public License for more details. *
#* *
#* You should have received a copy of the GNU Library General Public *
#* License along with this program; if not, write to the Free Software *
#* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
#* USA *
#* *
#***************************************************************************
__title__ = "FreeCAD OpenSCAD Workbench - CSG importer Version 0.5c"
__author__ = "Keith Sloan <keith@sloan-home.co.uk>"
__url__ = ["http://www.sloan-home.co.uk/ImportCSG"]
# Reserved words
reserved = (
'group',
'sphere',
'cylinder',
'cube',
'multmatrix',
'intersection',
'difference',
'union',
'rotate_extrude',
'linear_extrude',
'true',
'false',
'circle',
'square',
'text',
'polygon',
'paths',
'points',
'undef',
'polyhedron',
'triangles',
'faces',
'render',
'surface',
'subdiv',
'glide',
'hull',
'minkowski',
'projection',
'import',
'color',
'offset',
'resize',
)
# List of token names. This is always required
tokens = reserved + (
'WORD',
'NUMBER',
'LPAREN',
'RPAREN',
'OBRACE',
'EBRACE',
'OSQUARE',
'ESQUARE',
'COMMA',
'SEMICOL',
'EQ',
'STRING',
'ID',
'DOT',
'MODIFIERBACK',
'MODIFIERDEBUG',
'MODIFIERROOT',
'MODIFIERDISABLE'
)
# Regular expression rules for simple tokens
t_WORD = r'[$]?[a-zA-Z_]+[0-9]*'
t_NUMBER = r'[-]?[0-9]*[\.]*[0-9]+([eE][+-]?[0-9]+)*'
t_LPAREN = r'\('
t_RPAREN = r'\)'
t_OBRACE = r'{'
t_EBRACE = r'\}'
t_OSQUARE = r'\['
t_ESQUARE = r'\]'
t_COMMA = r','
t_SEMICOL = r';'
t_EQ = r'='
t_DOT = r'\.'
t_STRING = r'"[^"]*"'
#t_STRING = r'["]+[a-zA-Z.]+["]+'
t_MODIFIERBACK = r'%'
t_MODIFIERDEBUG = r'\#'
t_MODIFIERROOT = r'!'
t_MODIFIERDISABLE = r'\*'
# Deal with Reserved words
reserved_map = { }
for r in reserved:
reserved_map[r.lower()] = r
# Deal with Comments
def t_comment1(t):
r'//[^\r\n]*((\r\n)|<<EOF>>)'
pass
def t_comment2(t):
r'//[^\n]*((\n)|<<EOF>>)'
pass
def t_ID(t):
r'[$]?[a-zA-Z_]+[0-9]*'
t.type = reserved_map.get(t.value, "ID")
return t
# Define a rule so we can track line numbers
def t_newline(t):
r'\n+'
t.lexer.lineno += len(t.value)
# A string containing ignored characters (spaces and tabs)
t_ignore = " \t\r"
# Error handling rule
def t_error(t):
print("Illegal character '%s'" % t.value[0])
t.lexer.skip(1)
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