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#! /usr/bin/env python
"""Combine similar index entries into an entry and subentries.
For example:
\item {foobar} (in module flotz), 23
\item {foobar} (in module whackit), 4323
becomes
\item {foobar}
\subitem in module flotz, 23
\subitem in module whackit, 4323
Note that an item which matches the format of a collapsable item but which
isn't part of a group of similar items is not modified.
"""
__version__ = '$Revision$'
import re
import string
import StringIO
import sys
def strcasecmp(e1, e2, lower=string.lower):
return cmp(lower(e1[1]), lower(e2[1])) or cmp(e1, e2)
def dump_entries(ofp, entries):
if len(entries) == 1:
ofp.write(" \\item %s (%s)%s\n" % entries[0])
return
ofp.write(" \item %s\n" % entries[0][0])
# now sort these in a case insensitive manner:
entries.sort(strcasecmp)
for xxx, subitem, pages in entries:
ofp.write(" \subitem %s%s\n" % (subitem, pages))
breakable_re = re.compile(r" \\item (.*) [(](.*)[)]((?:, \d+)+)")
def main():
import getopt
outfile = None
opts, args = getopt.getopt(sys.argv[1:], "o:")
for opt, val in opts:
if opt in ("-o", "--output"):
outfile = val
filename = args[0]
outfile = outfile or filename
if filename == "-":
fp = sys.stdin
else:
fp = open(filename)
ofp = StringIO.StringIO()
item, subitem = None, None
entries = []
while 1:
line = fp.readline()
if not line:
break
m = breakable_re.match(line)
if m:
entry = m.group(1, 2, 3)
if entries:
if entries[-1][0] != entry[0]:
dump_entries(ofp, entries)
entries = []
entries.append(entry)
elif entries:
dump_entries(ofp, entries)
entries = []
ofp.write(line)
else:
pass
ofp.write(line)
fp.close()
if outfile == "-":
fp = sys.stdout
else:
fp = open(outfile, "w")
fp.write(ofp.getvalue())
fp.close()
if __name__ == "__main__":
main()
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