#!/usr/local/bin/python
#usage: c2html.py myprog.c
from sys import * # with this import sys.argv is simply argv
import re #with this import re.sub is still re.sub
infilename=argv[1] #get the infilename from the command line
file=open(infilename)
text=file.read()
if re.search('\.c$',infilename) : #find .c extension at end ($) of filename
	print 'conversion of ',infilename,' to html:<br>'
	left='<span style="color: #0000ff">/*' #this string used below
	right='*/</span>' #this strin used below
	text=re.sub('<','&lt;',text) # < is special in html, convert to &lt;
	text=re.sub('>','&gt;',text) # > is special in html, convert to &gt;
	text=re.sub('/\*',left,text) # turn on blue color at start of comments
	text=re.sub('\*/',right,text) # turn off blue color at end of comments
else: #cannot do anything except for .c
	print 'cannot convert ',infilename 
	exit(1)
# print out preformatted html, with comments in blue
print "<pre>"
print text
print "</pre>"