Re: [PHP] preg_match and dates
Per Jessen wrote:
Michael A. Peters wrote:
What I'm trying to do is write a preg matches for each case I come
across - if it matches the preg, it then parses according to the
pattern to get me an acceptable -MM-DD (not sure how I'll deal
with the season case yet ... but I'm serious, that kind of thing in
there several times)
To at least get started though, is there a wildcard defined that says
match a month?
IE
/^([0-9]{2})[\s-](MONTH_MATCH)[\s-]([0-9]{4,4}$/
where MONTH is some special magic that matches Mar March Apr April
etc. ?
Just write one yourself.
This is what I have so far -
$pattern[] = "/^([0-9]{1,2})[\s-]([A-Z][a-z]*)[\s-]([0-9]{4,4})$/i";
$clean[] = "\\3-\\2-\\1";
$pattern[] = "/^([A-Z][a-z]*)[\s-]([0-9]{4,4})$/";
$clean[] = "\\2-\\1-01";
$foo = preg_replace($pattern, $clean, $verb_date);
That was enough for me to discover some collectors have two digit years
and I can't differentiate 1902 from 2002 so I'll have to flag those and
bug the curator to fix 'em.
I'd rather have ([A-Z][a-z]*) be replaced with something that makes sure
it is a valid short or long month, writing one myself is not impossible
but if there is a date wildcard (or a tried and proven pattern) that can
match month built into php then it is better to use it, no?
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Re: [PHP] preg_match and dates
Michael A. Peters wrote:
This is what I have so far -
$pattern[] = "/^([0-9]{1,2})[\s-]([A-Z][a-z]*)[\s-]([0-9]{4,4})$/i";
$clean[] = "\\3-\\2-\\1";
$pattern[] = "/^([A-Z][a-z]*)[\s-]([0-9]{4,4})$/";
$clean[] = "\\2-\\1-01";
$foo = preg_replace($pattern, $clean, $verb_date);
If I were you, I'd write several regexes, one for each date format you
wish to recognize. It makes the regexes much easier to read, and you
can still write sub-expressions for catching e.g. months and then reuse
those in your main regexes.
/Per Jessen
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Re: [PHP] preg_match and dates
Michael A. Peters wrote:
> What I'm trying to do is write a preg matches for each case I come
> across - if it matches the preg, it then parses according to the
> pattern to get me an acceptable -MM-DD (not sure how I'll deal
> with the season case yet ... but I'm serious, that kind of thing in
> there several times)
>
> To at least get started though, is there a wildcard defined that says
> match a month?
>
> IE
>
> /^([0-9]{2})[\s-](MONTH_MATCH)[\s-]([0-9]{4,4}$/
>
> where MONTH is some special magic that matches Mar March Apr April
> etc. ?
Just write one yourself.
--
Per Jessen, Zürich (6.1°C)
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