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
--
"The greatest mistake is to imagine that the human being is an autonomous
individual. The secret freedom which you can supposedly enjoy under a
despotic government is nonsense, because your thoughts are never entirely
your own. Philosophers, writers, artists, even scientists, not only need
encouragement and an audience, they need constant stimulation from other
people. It is almost impossible to think without talking. If Defoe had really
lived on a desert island, he could not have written Robinson Crusoe, nor
would he have wanted to. Take away freedom of speech, and the creative
faculties dry up."
-George Orwell
