Engine for LaTeX songbooks http://www.patacrep.com
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
import getopt, sys
import os.path
import glob
import re
import json
def matchRegexp(reg, iterable):
return [ m.group(1) for m in (reg.match(l) for l in iterable) if m ]
def songslist(songs):
directories = set(["img/"] + map(lambda x: "songs/" + os.path.dirname(x), songs))
result = ['\\graphicspath{'] + [ ' {{{0}/}},'.format(d) for d in directories ] + ['}'] + [ '\\input{{songs/{0}}}'.format(s.strip()) for s in songs ]
return '\n'.join(result)
def parseTemplate(template):
embeddedJsonPattern = re.compile(r"^%%:")
f = open(template)
code = [ line[3:-1] for line in f if embeddedJsonPattern.match(line) ]
f.close()
data = json.loads(''.join(code))
parameters = dict()
for param in data:
parameters[param["name"]] = param
return parameters
def toValue(parameter, data):
if "type" not in parameter:
return data
elif parameter["type"] == "stringlist":
if "join" in parameter:
joinText = parameter["join"]
else:
joinText = ''
return joinText.join(data)
elif parameter["type"] == "color":
return data[1:]
def formatDeclaration(name, parameter):
value = ""
if "default" in parameter:
value = parameter["default"]
return '\\def\\set@{name}#1{{\\def\\get{name}{{#1}}}}\n'.format(name=name) + formatDefinition(name, toValue(parameter, value))
def formatDefinition(name, value):
return '\\set@{name}{{{value}}}\n'.format(name=name, value=value)
def makeTexFile(sb, output):
name = output[:-4]
# default value
template = "patacrep.tmpl"
songs = []
# parse the songbook data
if "template" in sb:
template = sb["template"]
del sb["template"]
if "songs" in sb:
songs = sb["songs"]
del sb["songs"]
parameters = parseTemplate("templates/"+template)
# output relevant fields
out = open(output, 'w')
out.write('%% This file has been automatically generated, do not edit!\n')
out.write('\\makeatletter\n')
# output automatic parameters
out.write(formatDeclaration("name", {"default":name}))
out.write(formatDeclaration("songslist", {"type":"stringlist"}))
# output template parameter command
for name, parameter in parameters.iteritems():
out.write(formatDeclaration(name, parameter))
# output template parameter values
for name, value in sb.iteritems():
if name in parameters:
out.write(formatDefinition(name, toValue(parameters[name],value)))
# output songslist
if songs == "all":
songs = map(lambda x: x[6:], glob.glob('songs/*/*.sg'))
songs.sort()
if len(songs) > 0:
out.write(formatDefinition('songslist', songslist(songs)))
out.write('\\makeatother\n')
# output template
commentPattern = re.compile(r"^\s*%")
f = open("templates/"+template)
content = [ line for line in f if not commentPattern.match(line) ]
f.close()
out.write(''.join(content))
out.close()
def makeDepend(sb, output):
name = output[:-2]
dependsPattern = re.compile(r"^[^%]*(?:include|input)\{(.*?)\}")
indexPattern = re.compile(r"^[^%]*\\(?:newauthor|new)index\{.*\}\{(.*?)\}")
lilypondPattern = re.compile(r"^[^%]*\\(?:lilypond)\{(.*?)\}")
# check for deps (in sb data)
deps = matchRegexp(dependsPattern, [ v for v in sb.itervalues() if type(v) is not list ])
if sb["songs"] == "all":
deps += glob.glob('songs/*/*.sg')
else:
deps += map(lambda x: "songs/" + x, sb["songs"])
# check for lilypond deps (in songs data) if necessary
lilypond = []
if "booktype" in sb and "lilypond" in sb["booktype"]:
for filename in deps:
tmpl = open(filename)
lilypond += matchRegexp(lilypondPattern, tmpl)
tmpl.close()
# check for index (in template file)
if "template" in sb:
filename = sb["template"]
else:
filename = "patacrep.tmpl"
tmpl = open("templates/"+filename)
idx = map(lambda x: x.replace("\getname", name), matchRegexp(indexPattern, tmpl))
tmpl.close()
# write .d file
out = open(output, 'w')
out.write('{0} {1} : {2}\n'.format(output, name+".tex", ' '.join(deps)))
out.write('{0} : {1}\n'.format(name+".pdf", ' '.join(map(lambda x: x+".sbx",idx)+map(lambda x: "lilypond/"+x+".pdf", lilypond))))
out.write('\t$(LATEX) {0}\n'.format(name+".tex"))
out.write('{0} : {1}\n'.format(' '.join(map(lambda x: x+".sxd",idx)), name+".aux"))
out.close()
def usage():
print "No usage information yet."
def main():
try:
opts, args = getopt.getopt(sys.argv[1:],
"hs:o:d",
["help","songbook=","output=","depend"])
except getopt.GetoptError, err:
# print help and exit
print str(err)
usage()
sys.exit(2)
songbook = None
depend = False
output = None
for o, a in opts:
if o in ("-h", "--help"):
usage()
sys.exit()
elif o in ("-s", "--songbook"):
songbook = a
elif o in ("-d", "--depend"):
depend = True
elif o in ("-o", "--output"):
output = a
else:
assert False, "unhandled option"
if songbook and output:
f = open(songbook)
sb = json.load(f)
f.close()
if depend:
makeDepend(sb, output)
else:
makeTexFile(sb, output)
if __name__ == '__main__':
main()