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#!/usr/bin/env python2.7

#-*- coding: utf-8 -*-

_AU3 = ';./sample.au3';

_AU3_OUT = ';./format.au3';

_INDENT = '; '; * 4

def au3formater(line, indent):

  line = line.strip().lower()

  next_indent = indent

  if (line.startswith(';end';) or

    line.startswith(';until';) or

    line in (';next';, ';wend';)):

    indent -= 1

    next_indent -= 1

  elif line.startswith(';if';) and line.endswith(';then';):

    next_indent += 1

  elif (line.startswith(';func';) or

     line.startswith(';for';) or

     line.startswith(';select';) or

     line.startswith(';switch';) or

     line.startswith(';while';) or

     line == ';do';):

    next_indent += 1

  elif line.startswith(';else';) or line.startswith(';case';):

    indent -= 1

  new_line = _INDENT * indent + line

  return new_line, next_indent

def main():

  with open(_AU3, ';r';) as fp:

    with open(_AU3_OUT, ';w';) as fpw:

      indent = 0

      line = fp.readline()

      while line:

        new_line, indent = au3formater(line, indent)

        fpw.write(';%s\n'; % new_line)

        line = fp.readline()

if __name__ == ';__main__';:

  main()