85 lines
2.5 KiB
Factor
85 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 arrays assocs combinators.lib io kernel
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math math.order namespaces regexp2.backend sequences
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sequences.lib unicode.categories math.ranges fry
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combinators.short-circuit vectors ;
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IN: regexp2.utils
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: (while-changes) ( obj quot pred pred-ret -- obj )
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! quot: ( obj -- obj' )
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! pred: ( obj -- <=> )
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>r >r dup slip r> pick over call r> dupd =
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[ 3drop ] [ (while-changes) ] if ; inline recursive
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: while-changes ( obj quot pred -- obj' )
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pick over call (while-changes) ; inline
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: assoc-with ( param assoc quot -- assoc curry )
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swapd [ [ -rot ] dip call ] 2curry ; inline
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: insert-at ( value key hash -- )
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2dup at* [
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2nip push
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] [
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drop
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[ dup vector? [ 1vector ] unless ] 2dip set-at
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] if ;
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: ?insert-at ( value key hash/f -- hash )
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[ H{ } clone ] unless* [ insert-at ] keep ;
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: last-state ( regexp -- range ) stack>> peek first2 [a,b] ;
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: push1 ( obj -- ) input-stream get stream>> push ;
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: peek1 ( -- obj ) input-stream get stream>> [ f ] [ peek ] if-empty ;
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: pop3 ( seq -- obj1 obj2 obj3 ) [ pop ] [ pop ] [ pop ] tri spin ;
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: drop1 ( -- ) read1 drop ;
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: stack ( -- obj ) current-regexp get stack>> ;
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: change-whole-stack ( quot -- )
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current-regexp get
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[ stack>> swap call ] keep (>>stack) ; inline
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: push-stack ( obj -- ) stack push ;
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: pop-stack ( -- obj ) stack pop ;
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: cut-out ( vector n -- vector' vector ) cut rest ;
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ERROR: cut-stack-error ;
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: cut-stack ( obj vector -- vector' vector )
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tuck last-index [ cut-stack-error ] unless* cut-out swap ;
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ERROR: bad-octal number ;
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ERROR: bad-hex number ;
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: check-octal ( octal -- octal ) dup 255 > [ bad-octal ] when ;
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: check-hex ( hex -- hex ) dup number? [ bad-hex ] unless ;
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: ascii? ( n -- ? ) 0 HEX: 7f between? ;
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: octal-digit? ( n -- ? ) CHAR: 0 CHAR: 7 between? ;
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: decimal-digit? ( n -- ? ) CHAR: 0 CHAR: 9 between? ;
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: hex-digit? ( n -- ? )
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[
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[ decimal-digit? ]
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[ CHAR: a CHAR: f between? ]
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[ CHAR: A CHAR: F between? ]
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] 1|| ;
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: control-char? ( n -- ? )
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[
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[ 0 HEX: 1f between? ]
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[ HEX: 7f = ]
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] 1|| ;
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: punct? ( n -- ? )
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"!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~" member? ;
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: c-identifier-char? ( ch -- ? )
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[ [ alpha? ] [ CHAR: _ = ] ] 1|| ;
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: java-blank? ( n -- ? )
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{
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CHAR: \s CHAR: \t CHAR: \n
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HEX: b HEX: 7 CHAR: \r
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} member? ;
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: java-printable? ( n -- ? )
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[ [ alpha? ] [ punct? ] ] 1|| ;
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