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| References | <981c1f5f-2c19-4efc-8397-796bde07f39b@googlegroups.com> <mailman.11746.1405042179.18130.python-list@python.org> <roy-CC0052.22182710072014@news.panix.com> <mailman.11747.1405046292.18130.python-list@python.org> <roy-AAB0F1.23332710072014@news.panix.com> |
|---|---|
| Date | 2014-07-11 14:31 +1000 |
| Subject | Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.11748.1405053093.18130.python-list@python.org> (permalink) |
On Fri, Jul 11, 2014 at 1:33 PM, Roy Smith <roy@panix.com> wrote:
>> Or heck, use a multi-line verbose expression and comment it for
>> clarity:
>>
>> r = re.compile(r"""
>> ( # begin a capture group
>> \({2} # two literal "(" characters
>> [^)]+ # one or more non-close-paren characters
>> \){2} # two literal ")" characters
>> ) # close the capture group
>> """, re.VERBOSE)
>>
>> -tkc
>
> Ugh. That reminds me of the classic commenting anti-pattern:
>
> l = [] # create an empty list
> for i in range(10): # iterate over the first 10 integers
> l.append(i) # append each one to the list
Small difference between the two. Python is designed to be a readable
language... regexps combine all the power and unreadability of machine
code with the portability of machine code.
ChrisA
exaggerating... but only a little
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How to decipher :re.split(r"(\(\([^)]+\)\))" in the example fl <rxjwg98@gmail.com> - 2014-07-10 08:37 -0700
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Peter Otten <__peter__@web.de> - 2014-07-10 18:49 +0200
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example MRAB <python@mrabarnett.plus.com> - 2014-07-10 18:01 +0100
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Joel Goldstick <joel.goldstick@gmail.com> - 2014-07-10 13:05 -0400
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Albert-Jan Roskam <fomcl@yahoo.com> - 2014-07-10 12:15 -0700
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Cameron Simpson <cs@zip.com.au> - 2014-07-11 11:29 +1000
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Roy Smith <roy@panix.com> - 2014-07-10 22:18 -0400
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Tim Chase <python.list@tim.thechases.com> - 2014-07-10 21:37 -0500
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Roy Smith <roy@panix.com> - 2014-07-10 23:33 -0400
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Chris Angelico <rosuav@gmail.com> - 2014-07-11 14:31 +1000
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example alister <alister.nospam.ware@ntlworld.com> - 2014-07-11 08:00 +0000
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Steven D'Aprano <steve@pearwood.info> - 2014-07-11 09:04 +0000
Re: How to decipher :re.split(r"(\(\([^)]+\)\))" in the example Albert-Jan Roskam <fomcl@yahoo.com> - 2014-07-11 08:18 -0700
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