[antlr-interest] wierdness - or perhaps my ignorance
genericised
trigonometric at softhome.net
Fri Aug 2 02:24:00 PDT 2002
class SillyLexer extends Lexer;
options { filter=BLAH; }
protected BLAH : {
$setType(Token.SKIP);
System.out.println("ignoring: "+getText());
} ;
---------------------------------------------------
called from a main like so:
---------------------------------------------------
while(true) {
try {
sillyLexer.nextToken();
} catch(Exception e) {}
}
---------------------------------------------------
when executed, no output is generated and
the lexer gets stuck in an infinate loop, why?
I comprehend that if newlines were an issue I
would have to catch them otherwise the lexer
would be stuck on one line, but here input is
from stdin so newlines should not be an issue?
Note: I am not trying to achieve anything specific
here, I am just curious.
Davy
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