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