1 ! Copyright (C) 2007, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors xmode.tokens xmode.rules xmode.keyword-map
4 xml.data xml.traversal xml assocs kernel combinators sequences
5 math.parser namespaces make parser lexer xmode.utilities
6 parser-combinators.regexp io.files splitting arrays ;
7 IN: xmode.loader.syntax
9 ! Rule tag parsing utilities
10 : (parse-rule-tag) ( rule-set tag specs class -- )
11 new swap init-from-tag swap add-rule ; inline
15 parse-definition { } make
16 swap [ (parse-rule-tag) ] 2curry (TAG:) ; parsing
19 : string>boolean ( string -- ? ) "TRUE" = ;
21 : string>match-type ( string -- obj )
28 : string>rule-set-name ( string -- name ) "MAIN" or ;
31 : parse-prop-tag ( tag -- key value )
32 [ "NAME" attr ] [ "VALUE" attr ] bi ;
34 : parse-props-tag ( tag -- assoc )
36 [ parse-prop-tag ] H{ } map>assoc ;
38 : position-attrs ( tag -- at-line-start? at-whitespace-end? at-word-start? )
40 { "AT_LINE_START" "AT_WHITESPACE_END" "AT_WORD_START" }
41 [ attr string>boolean ] with map first3 ;
43 : parse-literal-matcher ( tag -- matcher )
45 rule-set get ignore-case?>> <string-matcher>
46 swap position-attrs <matcher> ;
48 : parse-regexp-matcher ( tag -- matcher )
49 dup children>string rule-set get ignore-case?>> <regexp>
50 swap position-attrs <matcher> ;
52 : shared-tag-attrs ( -- )
53 { "TYPE" string>token (>>body-token) } , ; inline
55 : parse-delegate ( string -- pair )
56 "::" split1 [ rule-set get swap ] unless* 2array ;
58 : delegate-attr ( -- )
59 { "DELEGATE" f (>>delegate) } , ;
62 { "HASH_CHAR" f (>>chars) } , ;
64 : match-type-attr ( -- )
65 { "MATCH_TYPE" string>match-type (>>match-token) } , ;
68 { "NO_LINE_BREAK" string>boolean (>>no-line-break?) } ,
69 { "NO_WORD_BREAK" string>boolean (>>no-word-break?) } ,
70 { "NO_ESCAPE" string>boolean (>>no-escape?) } , ;
72 : literal-start ( -- )
73 [ parse-literal-matcher >>start drop ] , ;
76 [ parse-regexp-matcher >>start drop ] , ;
79 [ parse-literal-matcher >>end drop ] , ;
82 <TAGS: parse-begin/end-tag ( rule tag -- )
86 parse-literal-matcher >>start drop ;
90 parse-literal-matcher >>end drop ;
94 : parse-begin/end-tags ( -- )
96 ! XXX: handle position attrs on span tag itself
97 child-tags [ parse-begin/end-tag ] with each
100 : init-span-tag ( -- ) [ drop init-span ] , ;
102 : init-eol-span-tag ( -- ) [ drop init-eol-span ] , ;
104 : parse-keyword-tag ( tag keyword-map -- )
105 [ dup main>> string>token swap children>string ] dip set-at ;