parsers.c: Added support for py3k.
This patch adds support for py3k in parsers.c. This is accomplished by including
a header file responsible for abstracting the API differences between python 2
and python 3.
#!/usr/bin/env python
#
# This used to be a simple sed call like:
#
# $ sed "s:$HGTMP:*HGTMP*:"
#
# But $HGTMP has ':' under Windows which breaks the sed call.
#
import sys, os
input = sys.stdin.read()
input = input.replace(os.sep, '/')
hgtmp = os.environ['HGTMP'].replace(os.sep, '/')
input = input.replace(hgtmp, '$HGTMP')
sys.stdout.write(input)