110 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			110 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Factor
		
	
	
! Copyright (C) 2006, 2010 Slava Pestov
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays assocs classes continuations hashtables kernel
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make math math.functions math.parser math.ranges namespaces
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quotations regexp sequences sets unicode words xmode.catalog ;
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IN: validators
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: v-checkbox ( str -- ? )
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    >lower "on" = ;
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: v-default ( str def -- str/def )
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    [ drop empty? not ] most ;
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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 -- result )
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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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    3dup nip matches?
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    [ 2drop ] [ 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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    320 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" R/ (?:ftp|http|https):\/\/\S+/ 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" intersects?
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    [ "must be a single line" throw ] when ;
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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? ( str -- ? )
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    string>digits <reversed>
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    [ odd? [ 2 * 10 /mod + ] when ] map-index
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    sum 10 divisor? ;
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: v-credit-card ( str -- n )
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    "- " without
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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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