[antlr-interest] look ahead side effects on interactive parsers

[clay_douglass_at_work]

I am implementing an expression parser for an interactive debugger. 
Unfortunately the generated parser causes underactivity issues. e.g. 
It doesn't return the command till I hit return twice. I guess this 
is an obvious side effect of the look-ahead k=2. I had though since 
each command pattern ended in NEWLINE that I would get command 
returned as soon as the parser saw the NEWLINE. Any helpful 
suggestion or is my plan to use ANTLR to parse the interactive 
commands just a bad idea?

Thank,

Clay



 
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