# [PATCH] proposal for new function (str_type)

- Thread: https://externals.io/message/5649
- Original archive: https://news-web.php.net/php.internals/5649
- Started by Evan Nemerson on 2003-11-21T20:42:19+00:00
- Messages: 4
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## #5649 — Evan Nemerson — 2003-11-21T20:42:19+00:00

URL: https://externals.io/message/5649#5649

Hi everyone,

I've attached a patch which adds a function that basically wraps the ctype.h 
functions. It pretty much just lets you check to see if a string contains 
only a certain set of characters. I think it would be very nice for input 
validation, particularly for those who fear regular expressions. Here's the 
prototype:

bool str_type(str subject, int type)

type is a bitmask created from a bunch of new constants (STR_TYPE_ALNUM, 
STR_TYPE_ALPHA, STR_TYPE_CNTRL, STR_TYPE_DIGIT, STR_TYPE_GRAPH, 
STR_TYPE_LOWER, STR_TYPE_PRINT, STR_TYPE_PUNCT, STR_TYPE_SPACE, 
STR_TYPE_UPPER, STR_TYPE_XDIGIT)

If anyone is interested, there's a more exotic version at 
http://www.coeus-group.com/en/uploads/php_str_type.2.diff which allows as 
many parameters as you want, each of which can be either one of the above 
constants or a bitmask. It's not as clean as the attached version, and the 
attached version is definitely more similar to other functions, but I thought 
this way would be nice for people who are intimidated by bitmasks.

If the attachment doesn't agree with anyone, it's also at 
http://www.coeus-group.com/en/uploads/php_str_type.1.diff


-- 
Evan Nemerson
evan@coeus-group.com

--
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## #5654 — Evan Nemerson — 2003-11-21T22:10:07+00:00

URL: https://externals.io/message/5649#5654

> > […]
>
> ctype.h
>
> > […]
>
> the
>
> > […]
>
> A couple things:
>
> #1  Have you looked at the ctype extension?
> http://us4.php.net/manual/en/ref.ctype.php

Yeah, but I like being able to use them all at once.

>
> #2 If a unified function is to be added (not against it per se) it should
> probably be named ctype() (as the "top-level" of the ctype extension and be
> placed in ext/ctype rather than in ext/standard/strings.[ch]

Agreed. Here's a new patch that does that, and renames the calls the constants
CTYPE_*

>
> -Sara

-- 
Evan Nemerson
evan@coeus-group.com

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## #5653 — Hartmut Holzgraefe — 2003-11-21T22:14:08+00:00

URL: https://externals.io/message/5649#5653 · In reply to: #5649

Evan Nemerson wrote:
> Hi everyone,
> 
> I've attached a patch which adds a function that basically wraps the ctype.h 
> functions. 


http://php.net/manual/en/ref.ctype.php

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## #5655 — Evan Nemerson — 2003-11-21T22:25:07+00:00

URL: https://externals.io/message/5649#5655 · In reply to: #5653

> Evan Nemerson wrote:
> > […]
>
> http://php.net/manual/en/ref.ctype.php

Sara Golemon pointed that out, too. Those functions don't allow you to check 
more than one at the same time. I did, however, make a new patch that is 
named ctype() and is is in ext/ctype. Unfortunately, it got top-posted (I 
think Sara sent to php-internals@ on accident, and I replied to 
internals@...), but it's there.


-- 
Evan Nemerson
evan@coeus-group.com