102 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Factor
		
	
	
			
		
		
	
	
			102 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Factor
		
	
	
USING: xmode.tokens xmode.rules xmode.keyword-map xml.data
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xml.utilities xml assocs kernel combinators sequences
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math.parser namespaces parser lexer xmode.utilities regexp io.files ;
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IN: xmode.loader.syntax
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SYMBOL: ignore-case?
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! Rule tag parsing utilities
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: (parse-rule-tag) ( rule-set tag specs class -- )
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    construct-rule swap init-from-tag swap add-rule ; inline
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: RULE:
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    scan scan-word
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    parse-definition { } make
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    swap [ (parse-rule-tag) ] 2curry (TAG:) ; parsing
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! Attribute utilities
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: string>boolean ( string -- ? ) "TRUE" = ;
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: string>match-type ( string -- obj )
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    {
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        { "RULE" [ f ] }
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        { "CONTEXT" [ t ] }
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        [ string>token ]
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    } case ;
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: string>rule-set-name ( string -- name ) "MAIN" or ;
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! PROP, PROPS
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: parse-prop-tag ( tag -- key value )
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    "NAME" over at "VALUE" rot at ;
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: parse-props-tag ( tag -- assoc )
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    child-tags
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    [ parse-prop-tag ] H{ } map>assoc ;
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: position-attrs ( tag -- at-line-start? at-whitespace-end? at-word-start? )
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    ! XXX Wrong logic!
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    { "AT_LINE_START" "AT_WHITESPACE_END" "AT_WORD_START" }
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    swap [ at string>boolean ] curry map first3 ;
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: parse-literal-matcher ( tag -- matcher )
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    dup children>string
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    ignore-case? get <string-matcher>
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    swap position-attrs <matcher> ;
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: parse-regexp-matcher ( tag -- matcher )
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    dup children>string ignore-case? get <regexp>
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    swap position-attrs <matcher> ;
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: shared-tag-attrs ( -- )
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    { "TYPE" string>token set-rule-body-token } , ; inline
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: delegate-attr ( -- )
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    { "DELEGATE" f set-rule-delegate } , ;
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: regexp-attr ( -- )
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    { "HASH_CHAR" f set-rule-chars } , ;
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: match-type-attr ( -- )
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    { "MATCH_TYPE" string>match-type set-rule-match-token } , ;
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: span-attrs ( -- )
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    { "NO_LINE_BREAK" string>boolean set-rule-no-line-break? } ,
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    { "NO_WORD_BREAK" string>boolean set-rule-no-word-break? } ,
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    { "NO_ESCAPE" string>boolean set-rule-no-escape? } , ;
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: literal-start ( -- )
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    [ parse-literal-matcher swap set-rule-start ] , ;
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: regexp-start ( -- )
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    [ parse-regexp-matcher swap set-rule-start ] , ;
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: literal-end ( -- )
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    [ parse-literal-matcher swap set-rule-end ] , ;
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! SPAN's children
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<TAGS: parse-begin/end-tag ( rule tag -- )
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TAG: BEGIN
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    ! XXX
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    parse-literal-matcher swap set-rule-start ;
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TAG: END
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    ! XXX
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    parse-literal-matcher swap set-rule-end ;
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TAGS>
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: parse-begin/end-tags ( -- )
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    [
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        ! XXX: handle position attrs on span tag itself
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        child-tags [ parse-begin/end-tag ] with each
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    ] , ;
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: init-span-tag ( -- ) [ drop init-span ] , ;
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: init-eol-span-tag ( -- ) [ drop init-eol-span ] , ;
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: parse-keyword-tag ( tag keyword-map -- )
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    >r dup name-tag string>token swap children>string r> set-at ;
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