Why re.match()?
MRAB
python at mrabarnett.plus.com
Wed Jul 1 19:50:16 EDT 2009
Carl Banks wrote:
> On Jul 1, 10:56 am, kj <no.em... at please.post> wrote:
>> For a recovering Perl-head like me it is difficult to understand
>> why Python's re module offers both match and search. Why not just
>> use search with a beginning-of-string anchor? I find it particularly
>> puzzling because I have this (possibly mistaken) idea that the
>> Python design philosophy tends towards minimalism, a sort of Occam's
>> razor, when it comes to language entities; i.e. having re.match
>> along with re.search seems to me like an "unnecessary multiplication
>> of entities". What am I missing?
>
> It always seemed redundant to me also (notwithstanding Duncan Booth's
> explanation of slight semantic differences). However, I find myself
> using re.match much more often than re.search, so perhaps in this case
> a "second obvious way" is justified.
>
re.match is anchored at a certain position, whereas re.search isn't. The
re module doesn't support Perl's \G anchor.
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