Mercurial > public > mercurial-scm > hg-stable

comparison mercurial/commands.py @ 1059:4eab07ef66e2

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grep: speed up matching, and only return one match per line.
author bos@serpentine.internal.keyresearch.com
date Thu, 25 Aug 2005 17:13:48 -0700
parents 402279974aea
children e453d2053b2e
comparison
equal deleted inserted replaced
1058:402279974aea 1059:4eab07ef66e2
804 if fn not in fcache: 804 if fn not in fcache:
805 fcache[fn] = repo.file(fn) 805 fcache[fn] = repo.file(fn)
806 return fcache[fn] 806 return fcache[fn]
807 807
808 def matchlines(body): 808 def matchlines(body):
809 # massively inefficient. rewrite. 809 begin = 0
810 for match in regexp.finditer(body): 810 linenum = 0
811 start, end = match.span() 811 while True:
812 lnum = body.count('\n', 0, start) + 1 812 match = regexp.search(body, begin)
813 lstart = body.rfind('\n', 0, start) + 1 813 if not match: break
814 lend = body.find('\n', end) 814 mstart, mend = match.span()
815 yield lnum, start - lstart, end - lstart, body[lstart:lend] 815 linenum += body.count('\n', begin, mstart) + 1
816 lstart = body.rfind('\n', begin, mstart) + 1 or begin
817 lend = body.find('\n', mend)
818 yield linenum, mstart - lstart, mend - lstart, body[lstart:lend]
819 begin = lend + 1
816 820
817 class linestate: 821 class linestate:
818 def __init__(self, line, linenum, colstart, colend): 822 def __init__(self, line, linenum, colstart, colend):
819 self.line = line 823 self.line = line
820 self.linenum = linenum 824 self.linenum = linenum