#!/usr/bin/env python

import sys
import os
import os.path
from optparse import OptionParser


def quote_line(line):
    line = line.replace('&', '&')
    line = line.replace('<', '&lt;')
    line = line.replace('>', '&gt;')
    line = line.replace("'", '&apos;')
    line = line.replace('"', '&quot;')
    return line


def generate_listing(input_filename, title=None):
    inf = open(input_filename, "r")
    output_filename = os.path.basename(input_filename) + '.xml'
    outf = open(output_filename, "w")
    outf.write('<?xml version="1.0" encoding="ISO-8859-1"?>\n')
    # outf.write ('<example id="%s">\n' % (input_filename,))
    # if not title:
    #     title = input_filename
    # outf.write ('<title>')
    # outf.write (title)
    # outf.write ('</title>\n')
    outf.write('<programlisting>\n')

    lineno = 0
    for line in inf:
        line = line.expandtabs(8)
        line = quote_line(line)
        lineno = lineno + 1
        outf.write('%3d  %s' % (lineno, line))

    outf.write('</programlisting>\n')
    # outf.write ('</example>\n')


def main():
    for file in sys.argv[1:]:
        generate_listing(file)


if __name__ == '__main__':
    main()