Re: Parser generator (+ Lexer) that actually works?

tom.rmadilo wrote:
Then you really aren't talking about a new language to parse.

What is a new language?

other grammar?
other keywords ?
other commands ?

A programmer I worked with used the complete yacc lex bison whatnot
suite to create a very limited scriptable instrument control language
that did not deviate enough from a DOS polled programming style ( on a
multiuser multitasking unix platform ) to achieve the design targets
in an acceptable manner. ( ditched it after a short time )

A year later I wrote a scriptable framework ( one scriptable n path
message multiplexer, one scriptable checkpoint oriented parallelized
sequencer that plugged, like all other functionalities, into the
multiplexer as separate processes) to actually fill the usage
requirements of our instrument.
(forex commanding antenna movements while the spectrometer got
serviced with a data read out, continuing when movement _and_ readout
where complete )

had I known tcl at the time ( and "firstextension" expect and
the event based programming stuff been implemented yet) I would
have been able to achieve my goal in a tenth of the time and a
much reduced need to maintain a standalone framework.

uwe
.

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