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bos@149
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1 #!/usr/bin/env python
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2 #
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3 # This script attempts to work around some of the more bizarre and
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4 # quirky behaviours of htlatex.
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5 #
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6 # - We've persuaded htlatex to produce UTF-8, which unfortunately
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7 # causes it to use huge character sequences to represent even the
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8 # safe 7-bit ASCII subset of UTF-8. We fix that up.
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9 #
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10 # - BUT we have to treat angle brackets (for example, redirections in
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11 # shell script snippets) specially, otherwise they'll break the
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12 # generated HTML. (Reported by Johannes Hoff.)
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13 #
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14 # - For some reason, htlatex gives a unique ID to each fancyvrb
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15 # environment, which makes writing a sane, small CSS stylesheet
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16 # impossible. We squish all those IDs down to nothing.
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17
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18 import os
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19 import sys
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20 import re
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21
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22 angle_re = re.compile(r'([CE];)')
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23 unicode_re = re.compile(r'�([0-7][0-9A-F]);')
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24 fancyvrb_re = re.compile(r'id="fancyvrb\d+"', re.I)
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25 ligature_re = re.compile(r'ྰ([0-4]);')
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26
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27 tmpsuffix = '.tmp.' + str(os.getpid())
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28
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29 def hide_angle(m):
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30 return m.group(1).lower()
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31
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32 def fix_ascii(m):
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33 return chr(int(m.group(1), 16))
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34
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35 ligatures = ['ff', 'fi', 'fl', 'ffi', 'ffl']
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36
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37 def expand_ligature(m):
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38 return ligatures[int(m.group(1))]
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39
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40 for name in sys.argv[1:]:
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41 tmpname = name + tmpsuffix
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42 ofp = file(tmpname, 'w')
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43 for line in file(name):
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44 line = angle_re.sub(hide_angle, line)
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45 line = unicode_re.sub(fix_ascii, line)
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46 line = ligature_re.sub(expand_ligature, line)
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47 line = fancyvrb_re.sub('id="fancyvrb"', line)
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48 ofp.write(line)
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49 ofp.close()
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50 os.rename(tmpname, name)
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