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|
header {
#include "antlr/TokenStreamSelector.hpp"
}
options {
language="Cpp";
}
class DemoJavaDocLexer extends Lexer;
options {
k=2;
importVocab = Common;
exportVocab = JavaDoc;
filter=true;
}
{
private:
ANTLR_USE_NAMESPACE(antlr)TokenStreamSelector* selector;
public:
void setSelector(ANTLR_USE_NAMESPACE(antlr)TokenStreamSelector* selector_) {
selector=selector_;
}
}
PARAM
: "@param" ' ' ID
;
EXCEPTION
: "@exception" ' ' ID
;
protected
ID : ('a'..'z'|'A'..'Z')+
;
/** This rule simply prevents JAVADOC_CLOSE from being
* called for every '*' in a comment. Calling JAVADOC_CLOSE
* will fail for simple '*' and cause an exception, which
* is slow. In other words, the grammar will work without
* this rule, but is slower.
*/
STAR: '*' {$setType(ANTLR_USE_NAMESPACE(antlr)Token::SKIP);}
;
JAVADOC_CLOSE
: "*/" {selector->pop();}
;
/** Ignore whitespace inside JavaDoc comments */
NEWLINE
: ( "\r\n" // Evil DOS
| '\r' // Macintosh
| '\n' // Unix (the right way)
)
{ newline(); $setType(ANTLR_USE_NAMESPACE(antlr)Token::SKIP); }
;
|
