Re: Lex and yacc debugger design

>[I find that the problem isn't getting the yacc or lex source to compile,
>it's figuring out why it's not lexing or parsing the language I think
>it is. Single stepping and being able to see what the state machine
>is doing helps here. -John]


I second this, and this is the primary reason I am a strong enthusiast
of Visual Parse ++, and why I intend to add single stepping in the
PAISLEI grammar class generator for LPM.


There's nothing quite as revealing as seeing a reduce when you thought
there was going to be a shift, or when you see an expression eat an
entire line when it should have eaten two bytes. Watching the parse
tree grow also keeps the larger grammars more easily manageable
conceptually.
--
Quinn Tyler Jackson


email: qjackson@wave.home.com
url: http://www.qtj.net/~quinn/
ftp: qtj.net

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