47 lines
1.2 KiB
Factor
Executable File
47 lines
1.2 KiB
Factor
Executable File
! Copyright (C) 2007, 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: xmode.marker.context xmode.rules symbols accessors
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xmode.tokens namespaces make kernel sequences assocs math ;
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IN: xmode.marker.state
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! Based on org.gjt.sp.jedit.syntax.TokenMarker
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SYMBOLS: line last-offset position context
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whitespace-end seen-whitespace-end?
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escaped? process-escape? delegate-end-escaped? ;
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: current-rule ( -- rule )
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context get in-rule>> ;
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: current-rule-set ( -- rule )
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context get in-rule-set>> ;
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: current-keywords ( -- keyword-map )
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current-rule-set keywords>> ;
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: token, ( from to id -- )
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2over = [ 3drop ] [ >r line get subseq r> <token> , ] if ;
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: prev-token, ( id -- )
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>r last-offset get position get r> token,
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position get last-offset set ;
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: next-token, ( len id -- )
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>r position get 2dup + r> token,
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position get + dup 1- position set last-offset set ;
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: push-context ( rules -- )
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context [ <line-context> ] change ;
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: pop-context ( -- )
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context get parent>>
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f >>in-rule context set ;
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: init-token-marker ( main prev-context line -- )
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line set
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[ ] [ f <line-context> ] ?if context set
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0 position set
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0 last-offset set
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0 whitespace-end set
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process-escape? on ;
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