Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #30163

Re: regular expression : the dollar sign ($) work with re.match() or re.search() ?

From Peter Otten <__peter__@web.de>
Subject Re: regular expression : the dollar sign ($) work with re.match() or re.search() ?
Date 2012-09-26 10:33 +0200
Organization None
References <5d913584-b5ea-4ff1-8094-f4d5b273c0b6@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.1406.1348648406.27098.python-list@python.org> (permalink)

Show all headers | View raw


iMath wrote:

> I only know  the dollar sign ($) will match a pattern from the
> end of a string,but which method does it work with ,re.match() or
> re.search()  ?

Why not try it out in the interactive interpreter? Here's the "deluxe 
version":

>>> def demo(pattern="mid$", texts=["start mid end", "start mid", "mid end", 
"mid"], matchers=[re.match, re.search]):
...     print "pattern:", pattern
...     for text in texts:
...             for matcher in matchers:
...                     name = matcher.__name__
...                     print u"\N{CHECK MARK}" + name if matcher(pattern, 
text) else (" "*(len(name)+1)),
...             print repr(text)
... 
>>> demo()
pattern: mid$
               'start mid end'
       ✓search 'start mid'
               'mid end'
✓match ✓search 'mid'

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

regular expression :  the dollar sign ($) work with re.match() or re.search()  ? iMath <redstone-cold@163.com> - 2012-09-26 00:38 -0700
  Re: regular expression :  the dollar sign ($) work with re.match() or re.search() Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2012-09-26 10:48 +0300
    Re: regular expression : the dollar sign ($) work with re.match() or re.search() Chris Angelico <rosuav@gmail.com> - 2012-09-26 17:57 +1000
    Re: regular expression :  the dollar sign ($) work with re.match() or re.search() Alister <alister.ware@ntlworld.com> - 2012-09-26 15:47 +0000
      Re: regular expression :  the dollar sign ($) work with re.match() or re.search() Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2012-09-26 19:29 +0300
  Re: regular expression : the dollar sign ($) work with re.match() or re.search() ? Peter Otten <__peter__@web.de> - 2012-09-26 10:33 +0200
  RE: regular expression :  the dollar sign ($) work with re.match() or re.search()  ? "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-09-28 18:07 +0000
  Re: regular expression : the dollar sign ($) work with re.match() or re.search() ? Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-28 12:32 -0600
  Re: regular expression :  the dollar sign ($) work with re.match() or re.search()  ? iMath <redstone-cold@163.com> - 2013-01-07 01:45 -0800
    Re: regular expression :  the dollar sign ($) work with re.match() or re.search()  � Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-07 09:54 +0000

csiph-web