text: #!/usr/bin/python3
  
  import glob
  import re
  
  lgs=open("locallanguages.txt").read().split('\n')
  terms=open("localsubjectterms.txt").read().split('\n')[::-1]#reverse to avoid double indexing
  print("found %i language names for autoindexing" % len(lgs))
  print("found %i subject terms for autoindexing" % len(terms))
  
  files = glob.glob('chapters/*tex')
  
  SUBJECTP = re.compile
  for f in files:
    print("indexing %s" % f)
    #strip preamble of edited volume chapters to avoid indexing there
    a = open(f).read().split(r"\begin{document}")  
    content = a[-1]
    preamble = ''
    joiner = ''
    if len(a) == 2:
      preamble = a[0]
      joiner = r"\begin{document}"
    lines = content.split('\n')
    excluders = ("section","caption","chapter")
    newlines = []
    for line in lines: 
      included = True
      for excluder in excluders: 
        if "%s{"%excluder in line:
  	included = False
  	print line
      if included:
        for lg in lgs: 
  	lg = lg.strip()
  	if lg == '':
  	  continue 
  	line = re.sub('(?<!ili{)%s(?![\w}])'%lg, '\ili{%s}'%lg, line)
        for term in terms:
  	term = term.strip() 
  	if term == '':
  	  continue
  	line = re.sub('(?<!isi{|...[A-Za-z])%s(?![-_\w}])'%term, '\isi{%s}'%term, line) 
      newlines.append(line)
    content = "\n".join(newlines)  
    nlg = len(re.findall('\\ili{',content))
    nt = len(re.findall('\\isi{',content))
    outfile = open(f.replace('chapters','indexed'), 'w')
    outfile.write(preamble)
    outfile.write(joiner)
    outfile.write(content)
    outfile.close()
    print(" %s now contains %i indexed languages and %i indexed subject terms"%(f.split('/')[-1],nlg,nt))
    
  print("indexed files are in the folder 'indexed'")
    
    
    
  