#!/usr/bin/python -OO

import mstring
import re


BUG_REGEX = re.compile(r'#[0-9]+|bug [0-9]+',re.I)
BUG_URL = 'http://bugs.gentoo.org/show_bug.cgi?id='

def bugs_to_html(s):
	index = 1
	while 1:
		match = BUG_REGEX.search(s,index)
		if not match:
			break
		start = match.start()
		end = match.end()
		substring = s[start:end]
		if substring[0] == '#':  # this of the form "#1234"
			bugid = substring[1:]
		else: # this is of the form "bug 1234"
			bugid = substring[4:]
		url = '<a href="%s%s">%s</a>' % (BUG_URL,bugid,substring)
		(s,index) = mstring.replace_sub(s,url,start,end-1)
	return s

def changelog(filename):
	try:
		#print filename
		fp = open(filename,'r')
	except IOError:
		return ""


	s = ""
	# find first line that isn't blank or a comment
	while True:
		line = fp.readline()
		if not line: break
		#print line
		if line[0] not in ['#','','\n']:
			s = s + line
			break
	
	# append next strings until you reach next "*"
	while True:
		line = fp.readline()
		#print repr(line)
		if not line or line[0] == '*': break
		else: s= s + line
	
	return s