33 lines
981 B
ANTLR
33 lines
981 B
ANTLR
grammar Nlp;
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// ===== Parser =====
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document: LANG_HEADER (section)* ;
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section: SECTION_HEAD (subSection | entry)* ;
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subSection: SUB_SECTION_HEAD (entry)* ;
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entry: ENTRY_STRING # entryString
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| ENTRY_STRING (LINE_CONCATOR ENTRY_STRING)+ # entryConcatedString
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| ENTRY_INTEGER # entryInteger
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;
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// ===== Lexer =====
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LANG_HEADER: 'Language:' [a-zA-Z]+ ;
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SECTION_HEAD: '[' NAME_SECTION ']' ;
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SUB_SECTION_HEAD: '<' NAME_SECTION '>' ;
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fragment NAME_SECTION: [ a-zA-Z0-9]+ ; // section name are consisted of space, char and number
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ENTRY_STRING: '"' (ENTRY_STRING_ESC| ~'"' )* '"' ;
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fragment ENTRY_STRING_ESC: '""' | '\\\\' | '\\t' | '\\n' ;
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ENTRY_INTEGER: [1-9][0-9]+ ;
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LINE_CONCATOR: '\\';
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SPLITTOR: [ ,;\r\n]+ -> skip; // ignore all splittor and space
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LINE_COMMENT: '//' ~[\r\n]* -> skip ; // consume all non-line-breaker. because we need line breaker.
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BLOCK_COMMENT: '/*' .*? '*/' -> skip ;
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