Mercurial > hg
view tests/test-demandimport.py @ 17931:35ba170c0f82 stable
grep: don't search past the end of the searched string
'*' causes the resulting RE to match 0 or more repetitions of the preceding RE:
>>> bool(re.search('.*', ''))
>>> True
This causes an infinite loop because currently we're only checking if there was
a match without looking at where we are in the searched string.
author | Idan Kamara <idankk86@gmail.com> |
---|---|
date | Mon, 12 Nov 2012 19:27:03 +0200 |
parents | c0290fc6b486 |
children | 54af51c18c4c |
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from mercurial import demandimport demandimport.enable() import re rsub = re.sub def f(obj): l = repr(obj) l = rsub("0x[0-9a-fA-F]+", "0x?", l) l = rsub("from '.*'", "from '?'", l) l = rsub("'<[a-z]*>'", "'<whatever>'", l) return l import os print "os =", f(os) print "os.system =", f(os.system) print "os =", f(os) from mercurial import util print "util =", f(util) print "util.system =", f(util.system) print "util =", f(util) print "util.system =", f(util.system) import re as fred print "fred =", f(fred) import sys as re print "re =", f(re) print "fred =", f(fred) print "fred.sub =", f(fred.sub) print "fred =", f(fred) print "re =", f(re) print "re.stderr =", f(re.stderr) print "re =", f(re)