89 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Factor
		
	
	
		
			Executable File
		
	
			
		
		
	
	
			89 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Factor
		
	
	
		
			Executable File
		
	
USING: xmode.loader.syntax xmode.tokens xmode.rules
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xmode.keyword-map xml.data xml.utilities xml assocs kernel
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combinators sequences math.parser namespaces parser
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xmode.utilities regexp io.files ;
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IN: xmode.loader
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! Based on org.gjt.sp.jedit.XModeHandler
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! RULES and its children
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<TAGS: parse-rule-tag ( rule-set tag -- )
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TAG: PROPS
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    parse-props-tag swap set-rule-set-props ;
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TAG: IMPORT
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    "DELEGATE" swap at swap import-rule-set ;
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TAG: TERMINATE
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    "AT_CHAR" swap at string>number swap set-rule-set-terminate-char ;
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RULE: SEQ seq-rule
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    shared-tag-attrs delegate-attr literal-start ;
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RULE: SEQ_REGEXP seq-rule
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    shared-tag-attrs delegate-attr regexp-attr regexp-start ;
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RULE: SPAN span-rule
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    shared-tag-attrs delegate-attr match-type-attr span-attrs parse-begin/end-tags init-span-tag ;
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RULE: SPAN_REGEXP span-rule
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    shared-tag-attrs delegate-attr match-type-attr span-attrs regexp-attr parse-begin/end-tags init-span-tag ;
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RULE: EOL_SPAN eol-span-rule
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    shared-tag-attrs delegate-attr match-type-attr literal-start init-eol-span-tag ;
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RULE: EOL_SPAN_REGEXP eol-span-rule
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    shared-tag-attrs delegate-attr match-type-attr regexp-attr regexp-start init-eol-span-tag ;
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RULE: MARK_FOLLOWING mark-following-rule
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    shared-tag-attrs match-type-attr literal-start ;
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RULE: MARK_PREVIOUS mark-previous-rule
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    shared-tag-attrs match-type-attr literal-start ;
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TAG: KEYWORDS ( rule-set tag -- key value )
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    ignore-case? get <keyword-map>
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    swap child-tags [ over parse-keyword-tag ] each
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    swap set-rule-set-keywords ;
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TAGS>
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: ?<regexp> ( string/f -- regexp/f )
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    dup [ ignore-case? get <regexp> ] when ;
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: (parse-rules-tag) ( tag -- rule-set )
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    <rule-set>
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    {
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        { "SET" string>rule-set-name set-rule-set-name }
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        { "IGNORE_CASE" string>boolean set-rule-set-ignore-case? }
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        { "HIGHLIGHT_DIGITS" string>boolean set-rule-set-highlight-digits? }
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        { "DIGIT_RE" ?<regexp> set-rule-set-digit-re }
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        { "ESCAPE" f add-escape-rule }
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        { "DEFAULT" string>token set-rule-set-default }
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        { "NO_WORD_SEP" f set-rule-set-no-word-sep }
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    } init-from-tag ;
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: parse-rules-tag ( tag -- rule-set )
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    dup (parse-rules-tag) [
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        dup rule-set-ignore-case? ignore-case? [
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            swap child-tags [ parse-rule-tag ] with each
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        ] with-variable
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    ] keep ;
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: merge-rule-set-props ( props rule-set -- )
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    [ rule-set-props assoc-union ] keep set-rule-set-props ;
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! Top-level entry points
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: parse-mode-tag ( tag -- rule-sets )
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    dup "RULES" tags-named [
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        parse-rules-tag dup rule-set-name swap
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    ] H{ } map>assoc
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    swap "PROPS" tag-named [
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        parse-props-tag over values
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        [ merge-rule-set-props ] with each
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    ] when* ;
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: parse-mode ( stream -- rule-sets )
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    read-xml parse-mode-tag ;
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