Engine for LaTeX songbooks http://www.patacrep.com
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Generate indexes files for the Crep's chordbook compilation. This is
# a replacement for the original makeindex program written in C that
# produces an index file (.sbx) from a file generated by the latex
# compilation of the songbook (.sxd).
#
# Usage : songbook-makeindex.py src
# src is the .sxd file generated by latex
#
import sys
import os.path
import glob
import re
from optparse import OptionParser
import sortindex
import locale
# Pattern set to ignore latex command in title prefix
keywordPattern = re.compile(r"^%(\w+)\s?(\w*)")
firstLetterPattern = re.compile(r"^(?:\{?\\\w+\}?)*[^\w]*(\w)")
class index:
data = dict()
keywords = dict()
def filter(self, key):
letter = firstLetterPattern.match(key).group(1)
if re.match('\d',letter):
letter = '0-9'
return (letter.upper(), key)
def keyword(self, key, word):
if not self.keywords.has_key(key):
self.keywords[key] = []
self.keywords[key].append(word)
def compileKeywords(self):
pass
def add(self, key, number, link):
(first, key) = self.filter(key)
if not self.data.has_key(first):
self.data[first] = dict()
if not self.data[first].has_key(key):
self.data[first][key] = []
self.data[first][key].append({'num':number, 'link':link})
def refToStr(self, ref):
if sys.version_info >= (2,6):
return '\\hyperlink{{{0[link]}}}{{{0[num]}}}'.format(ref)
else:
return '\\hyperlink{%(link)s}{%(num)s}' % ref
def entryToStr(self, key, entry):
if sys.version_info >= (2,6):
return '\\idxentry{{{0}}}{{{1}}}\n'.format(key, '\\\\'.join(map(self.refToStr, entry)))
else:
return '\\idxentry{%s}{%s}\n' % (key, '\\\\'.join(map(self.refToStr, entry)))
def idxBlockToStr(self, letter, entries):
str = '\\begin{idxblock}{'+letter+'}'+'\n'
for key in sorted(entries.keys(), key=sortindex.sortkey):
str += self.entryToStr(key, entries[key])
str += '\\end{idxblock}'+'\n'
return str
def entriesToStr(self):
str = ""
for letter in sorted(self.data.keys()):
str += self.idxBlockToStr(letter, self.data[letter])
return str
def processSXDEntry(tab):
return (tab[0], tab[1], tab[2])
def processSXD(filename):
file = open(filename)
data = []
for line in file:
data.append(line.strip())
file.close()
type = data[0]
i = 1
idx = index()
while data[i].startswith('%'):
keywords = keywordPattern.match(data[i]).groups()
idx.keyword(keywords[0],keywords[1])
i += 1
idx.compileKeywords()
for i in range(i,len(data),3):
entry = processSXDEntry(data[i:i+3])
idx.add(entry[0],entry[1],entry[2])
return idx
def usage(exitCode=None):
print "usage: songbook-makeindex.py [options] source"
sys.exit(exitCode)
def main():
locale.setlocale(locale.LC_ALL, '')
usage = "usage: %prog [options] FILE"
parser = OptionParser(usage)
parser.add_option("-o", "--output", dest="filename",
help="write result into FILE", metavar="FILE")
(options, args) = parser.parse_args()
# Args processing
if len(args) != 1:
parser.error("incorrect number of arguments")
if not os.path.exists(args[0]):
parser.error("inexistant input file")
# Options processing
if options.filename:
output = open(options.filename,"w")
else:
output = sys.stdout
# Actual processing
idx = processSXD(args[0])
output.write(idx.entriesToStr())
if __name__ == '__main__':
main()