factor/extra/validators/validators.factor

110 lines
2.6 KiB
Factor

! Copyright (C) 2006, 2008 Slava Pestov
! See http://factorcode.org/license.txt for BSD license.
USING: kernel continuations sequences sequences.lib math
namespaces sets math.parser math.ranges assocs regexp
unicode.categories arrays hashtables words
classes quotations xmode.catalog ;
IN: validators
: v-default ( str def -- str )
over empty? spin ? ;
: v-required ( str -- str )
dup empty? [ "required" throw ] when ;
: v-optional ( str quot -- str )
over empty? [ 2drop f ] [ call ] if ; inline
: v-min-length ( str n -- str )
over length over < [
[ "must be at least " % # " characters" % ] "" make
throw
] [
drop
] if ;
: v-max-length ( str n -- str )
over length over > [
[ "must be no more than " % # " characters" % ] "" make
throw
] [
drop
] if ;
: v-number ( str -- n )
dup string>number [ ] [ "must be a number" throw ] ?if ;
: v-integer ( str -- n )
v-number dup integer? [ "must be an integer" throw ] unless ;
: v-min-value ( x n -- x )
2dup < [
[ "must be at least " % # ] "" make throw
] [
drop
] if ;
: v-max-value ( x n -- x )
2dup > [
[ "must be no more than " % # ] "" make throw
] [
drop
] if ;
: v-regexp ( str what regexp -- str )
>r over r> matches?
[ drop ] [ "invalid " prepend throw ] if ;
: v-email ( str -- str )
#! From http://www.regular-expressions.info/email.html
60 v-max-length
"e-mail"
R' [A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}'i
v-regexp ;
: v-url ( str -- str )
"URL"
R' (ftp|http|https)://(\w+:?\w*@)?(\S+)(:[0-9]+)?(/|/([\w#!:.?+=&%@!\-/]))?'
v-regexp ;
: v-captcha ( str -- str )
dup empty? [ "must remain blank" throw ] unless ;
: v-one-line ( str -- str )
v-required
dup "\r\n" intersect empty?
[ "must be a single line" throw ] unless ;
: v-one-word ( str -- str )
v-required
dup [ alpha? ] all?
[ "must be a single word" throw ] unless ;
: v-username ( str -- str )
2 v-min-length 16 v-max-length v-one-word ;
: v-password ( str -- str )
6 v-min-length 40 v-max-length v-one-line ;
: v-mode ( str -- str )
dup mode-names member? [
"not a valid syntax mode" throw
] unless ;
: luhn? ( n -- ? )
string>digits <reversed>
[ odd? [ 2 * 10 /mod + ] when ] map-index
sum 10 mod 0 = ;
: v-credit-card ( str -- n )
"- " diff
dup CHAR: 0 CHAR: 9 [a,b] diff empty? [
13 v-min-length
16 v-max-length
dup luhn? [ string>number ] [
"card number check failed" throw
] if
] [
"invalid credit card number format" throw
] if ;