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143 lines
3.9 KiB
Python
Executable file
143 lines
3.9 KiB
Python
Executable file
#! /usr/bin/env python
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"""Convert a LaTeX .toc file to some PDFTeX magic to create that neat outline.
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The output file has an extension of '.bkm' instead of '.out', since hyperref
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already uses that extension.
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"""
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import getopt
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import os
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import re
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import string
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import sys
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# Ench item in an entry is a tuple of:
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#
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# Section #, Title String, Page #, List of Sub-entries
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#
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# The return value of parse_toc() is such a tuple.
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cline_re = r"""^
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\\contentsline\ \{([a-z]*)} # type of section in $1
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\{(?:\\numberline\ \{([0-9.A-Z]+)})? # section number
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(.*)} # title string
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\{(\d+)}$""" # page number
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cline_rx = re.compile(cline_re, re.VERBOSE)
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OUTER_TO_INNER = -1
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_transition_map = {
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('chapter', 'section'): OUTER_TO_INNER,
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('section', 'subsection'): OUTER_TO_INNER,
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('subsection', 'subsubsection'): OUTER_TO_INNER,
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('subsubsection', 'subsection'): 1,
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('subsection', 'section'): 1,
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('section', 'chapter'): 1,
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('subsection', 'chapter'): 2,
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('subsubsection', 'section'): 2,
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('subsubsection', 'chapter'): 3,
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}
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INCLUDED_LEVELS = ("chapter", "section", "subsection", "subsubsection")
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def parse_toc(fp, bigpart=None):
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toc = top = []
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stack = [toc]
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level = bigpart or 'chapter'
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lineno = 0
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while 1:
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line = fp.readline()
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if not line:
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break
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lineno = lineno + 1
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m = cline_rx.match(line)
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if m:
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stype, snum, title, pageno = m.group(1, 2, 3, 4)
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title = clean_title(title)
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entry = (stype, snum, title, int(pageno), [])
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if stype == level:
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toc.append(entry)
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else:
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if stype not in INCLUDED_LEVELS:
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# we don't want paragraphs & subparagraphs
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continue
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direction = _transition_map[(level, stype)]
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if direction == OUTER_TO_INNER:
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toc = toc[-1][-1]
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stack.insert(0, toc)
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toc.append(entry)
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else:
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for i in range(direction):
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del stack[0]
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toc = stack[0]
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toc.append(entry)
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level = stype
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else:
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sys.stderr.write("l.%s: " + line)
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return top
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hackscore_rx = re.compile(r"\\hackscore\s*{[^}]*}")
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raisebox_rx = re.compile(r"\\raisebox\s*{[^}]*}")
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title_rx = re.compile(r"\\([a-zA-Z])+\s+")
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title_trans = string.maketrans("", "")
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def clean_title(title):
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title = raisebox_rx.sub("", title)
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title = hackscore_rx.sub(r"\\_", title)
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pos = 0
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while 1:
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m = title_rx.search(title, pos)
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if m:
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start = m.start()
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if title[start:start+15] != "\\textunderscore":
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title = title[:start] + title[m.end():]
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pos = start + 1
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else:
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break
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title = title.translate(title_trans, "{}")
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return title
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def write_toc(toc, fp):
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for entry in toc:
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write_toc_entry(entry, fp, 0)
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def write_toc_entry(entry, fp, layer):
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stype, snum, title, pageno, toc = entry
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s = "\\pdfoutline goto name{page%03d}" % pageno
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if toc:
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s = "%s count -%d" % (s, len(toc))
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if snum:
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title = "%s %s" % (snum, title)
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s = "%s {%s}\n" % (s, title)
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fp.write(s)
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for entry in toc:
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write_toc_entry(entry, fp, layer + 1)
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def process(ifn, ofn, bigpart=None):
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toc = parse_toc(open(ifn), bigpart)
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write_toc(toc, open(ofn, "w"))
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def main():
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bigpart = None
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opts, args = getopt.getopt(sys.argv[1:], "c:")
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if opts:
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bigpart = opts[0][1]
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if not args:
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usage()
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sys.exit(2)
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for filename in args:
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base, ext = os.path.splitext(filename)
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ext = ext or ".toc"
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process(base + ext, base + ".bkm", bigpart)
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if __name__ == "__main__":
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main()
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