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96 lines
1.8 KiB
96 lines
1.8 KiB
lexer grammar t020fuzzy;
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options {
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language=JavaScript;
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filter=true;
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}
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@members {
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this.outbuf = [];
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this.output = function(msg) {
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this.outbuf.push(msg);
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};
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}
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IMPORT
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: 'import' WS name=QIDStar WS? ';'
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;
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/** Avoids having "return foo;" match as a field */
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RETURN
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: 'return' (options {greedy=false;}:.)* ';'
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;
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CLASS
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: 'class' WS name=ID WS? ('extends' WS QID WS?)?
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('implements' WS QID WS? (',' WS? QID WS?)*)? '{'
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{this.output("found class "+$name.text+"\n");}
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;
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METHOD
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: TYPE WS name=ID WS? '(' ( ARG WS? (',' WS? ARG WS?)* )? ')' WS?
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('throws' WS QID WS? (',' WS? QID WS?)*)? '{'
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{this.output("found method "+$name.text+"\n");}
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;
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FIELD
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: TYPE WS name=ID '[]'? WS? (';'|'=')
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{this.output("found var "+$name.text+"\n");}
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;
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STAT: ('if'|'while'|'switch'|'for') WS? '(' ;
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CALL
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: name=QID WS? '('
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{this.output("found call "+$name.text+"\n");}
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;
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COMMENT
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: '/*' (options {greedy=false;} : . )* '*/'
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{this.output("found comment "+this.getText()+"\n");}
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;
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SL_COMMENT
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: '//' (options {greedy=false;} : . )* '\n'
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{this.output("found // comment "+this.getText()+"\n");}
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;
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STRING
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: '"' (options {greedy=false;}: ESC | .)* '"'
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;
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CHAR
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: '\'' (options {greedy=false;}: ESC | .)* '\''
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;
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WS : (' '|'\t'|'\n')+
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;
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fragment
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QID : ID ('.' ID)*
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;
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/** QID cannot see beyond end of token so using QID '.*'? somewhere won't
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* ever match since k=1 lookahead in the QID loop of '.' will make it loop.
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* I made this rule to compensate.
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*/
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fragment
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QIDStar
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: ID ('.' ID)* '.*'?
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;
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fragment
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TYPE: QID '[]'?
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;
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fragment
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ARG : TYPE WS ID
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;
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fragment
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ID : ('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'_'|'0'..'9')*
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;
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fragment
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ESC : '\\' ('"'|'\''|'\\')
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;
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