106 lines
2.8 KiB
Factor
106 lines
2.8 KiB
Factor
! Copyright (C) 2007, 2009 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: accessors xmode.tokens xmode.rules xmode.keyword-map
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xml.data xml.traversal xml assocs kernel combinators sequences
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math.parser namespaces make parser lexer xmode.utilities
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parser-combinators.regexp io.files splitting arrays ;
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IN: xmode.loader.syntax
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! Rule tag parsing utilities
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: (parse-rule-tag) ( rule-set tag specs class -- )
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new 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" attr ] [ "VALUE" attr ] bi ;
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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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[ attr string>boolean ] with map first3 ;
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: parse-literal-matcher ( tag -- matcher )
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dup children>string
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rule-set get ignore-case?>> <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 rule-set get ignore-case?>> <regexp>
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swap position-attrs <matcher> ;
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: shared-tag-attrs ( -- )
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{ "TYPE" string>token (>>body-token) } , ; inline
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: parse-delegate ( string -- pair )
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"::" split1 [ rule-set get swap ] unless* 2array ;
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: delegate-attr ( -- )
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{ "DELEGATE" f (>>delegate) } , ;
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: regexp-attr ( -- )
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{ "HASH_CHAR" f (>>chars) } , ;
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: match-type-attr ( -- )
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{ "MATCH_TYPE" string>match-type (>>match-token) } , ;
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: span-attrs ( -- )
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{ "NO_LINE_BREAK" string>boolean (>>no-line-break?) } ,
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{ "NO_WORD_BREAK" string>boolean (>>no-word-break?) } ,
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{ "NO_ESCAPE" string>boolean (>>no-escape?) } , ;
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: literal-start ( -- )
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[ parse-literal-matcher >>start drop ] , ;
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: regexp-start ( -- )
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[ parse-regexp-matcher >>start drop ] , ;
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: literal-end ( -- )
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[ parse-literal-matcher >>end drop ] , ;
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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 >>start drop ;
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TAG: END
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! XXX
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parse-literal-matcher >>end drop ;
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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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[ dup main>> string>token swap children>string ] dip set-at ;
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