92 lines
2.5 KiB
Factor
92 lines
2.5 KiB
Factor
! Copyright (C) 2008 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors kernel math math.order symbols
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words regexp.utils unicode.categories combinators.short-circuit ;
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IN: regexp.classes
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SINGLETONS: any-char any-char-no-nl
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letter-class LETTER-class Letter-class digit-class
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alpha-class non-newline-blank-class
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ascii-class punctuation-class java-printable-class blank-class
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control-character-class hex-digit-class java-blank-class c-identifier-class
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unmatchable-class terminator-class word-boundary-class ;
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SINGLETONS: beginning-of-input beginning-of-line
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end-of-input end-of-line ;
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MIXIN: node
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TUPLE: character-class-range from to ; INSTANCE: character-class-range node
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GENERIC: class-member? ( obj class -- ? )
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M: t class-member? ( obj class -- ? ) 2drop f ;
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M: integer class-member? ( obj class -- ? ) 2drop f ;
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M: character-class-range class-member? ( obj class -- ? )
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[ from>> ] [ to>> ] bi between? ;
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M: any-char class-member? ( obj class -- ? )
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2drop t ;
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M: any-char-no-nl class-member? ( obj class -- ? )
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drop CHAR: \n = not ;
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M: letter-class class-member? ( obj class -- ? )
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drop letter? ;
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M: LETTER-class class-member? ( obj class -- ? )
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drop LETTER? ;
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M: Letter-class class-member? ( obj class -- ? )
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drop Letter? ;
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M: ascii-class class-member? ( obj class -- ? )
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drop ascii? ;
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M: digit-class class-member? ( obj class -- ? )
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drop digit? ;
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M: c-identifier-class class-member? ( obj class -- ? )
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drop
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{ [ digit? ] [ Letter? ] [ CHAR: _ = ] } 1|| ;
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M: alpha-class class-member? ( obj class -- ? )
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drop alpha? ;
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M: punctuation-class class-member? ( obj class -- ? )
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drop punct? ;
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M: java-printable-class class-member? ( obj class -- ? )
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drop java-printable? ;
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M: non-newline-blank-class class-member? ( obj class -- ? )
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drop { [ blank? ] [ CHAR: \n = not ] } 1&& ;
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M: control-character-class class-member? ( obj class -- ? )
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drop control-char? ;
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M: hex-digit-class class-member? ( obj class -- ? )
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drop hex-digit? ;
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M: java-blank-class class-member? ( obj class -- ? )
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drop java-blank? ;
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M: unmatchable-class class-member? ( obj class -- ? )
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2drop f ;
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M: terminator-class class-member? ( obj class -- ? )
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drop {
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[ CHAR: \r = ]
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[ CHAR: \n = ]
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[ CHAR: \u000085 = ]
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[ CHAR: \u002028 = ]
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[ CHAR: \u002029 = ]
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} 1|| ;
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M: beginning-of-line class-member? ( obj class -- ? )
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2drop f ;
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M: end-of-line class-member? ( obj class -- ? )
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2drop f ;
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