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74 lines
3.3 KiB
Python
74 lines
3.3 KiB
Python
# This file is part of lyx2lyx
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# -*- coding: utf-8 -*-
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# Copyright (C) 2011 The LyX team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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" Import unicode_reps from this module for access to the unicode<->LaTeX mapping. "
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import sys, os, re
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# Provide support for both python 2 and 3
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PY2 = sys.version_info[0] == 2
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if not PY2:
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unichr = chr
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# End of code to support for both python 2 and 3
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def read_unicodesymbols():
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" Read the unicodesymbols list of unicode characters and corresponding commands."
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pathname = os.path.abspath(os.path.dirname(sys.argv[0]))
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fp = open(os.path.join(pathname.strip('lyx2lyx'), 'unicodesymbols'))
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spec_chars = []
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# A backslash, followed by some non-word character, and then a character
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# in brackets. The idea is to check for constructs like: \"{u}, which is how
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# they are written in the unicodesymbols file; but they can also be written
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# as: \"u or even \" u.
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# The two backslashes in the string literal are needed to specify a literal
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# backslash in the regex. Without r prefix, these would be four backslashes.
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r = re.compile(r'\\(\W)\{(\w)\}')
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for line in fp.readlines():
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if line[0] != '#' and line.strip() != "":
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# Note: backslashes in the string literals with r prefix are not escaped,
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# so one backslash in the source file equals one backslash in memory.
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# Without r prefix backslahses are escaped, so two backslashes in the
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# source file equal one backslash in memory.
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line=line.replace(' "',' ') # remove all quotation marks with spaces before
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line=line.replace('" ',' ') # remove all quotation marks with spaces after
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line=line.replace(r'\"','"') # unescape "
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line=line.replace(r'\\','\\') # unescape \
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try:
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[ucs4,command,dead] = line.split(None,2)
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if command[0:1] != "\\":
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continue
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if (line.find("notermination=text") < 0 and
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line.find("notermination=both") < 0 and command[-1] != "}"):
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command = command + "{}"
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spec_chars.append([command, unichr(eval(ucs4))])
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except:
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continue
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m = r.match(command)
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if m != None:
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command = "\\"
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commandbl = command
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command += m.group(1) + m.group(2)
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commandbl += m.group(1) + ' ' + m.group(2)
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spec_chars.append([command, unichr(eval(ucs4))])
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spec_chars.append([commandbl, unichr(eval(ucs4))])
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fp.close()
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return spec_chars
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unicode_reps = read_unicodesymbols()
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