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Re: Re: Parsing... possible w/o too much stress ?

by rob_au (Abbot)
on Mar 19, 2003 at 14:06 UTC ( [id://244336]=note: print w/replies, xml ) Need Help??


in reply to Re: Parsing... possible w/o too much stress ?
in thread Parsing... possible w/o too much stress ?

If the format is more complex than what parsing with Text::Balanced will allow, another option on the path to a solution may be to investigate the Parse::RecDescent module (also by Damian Conway). As those who have used this module are aware, this module very much represents *the* way to perform complex parsing and pattern extraction - However, as with all powerful tools, there is a learning curve, particularly if you are not used to writing formal grammars.

Some useful sources of information for reference when learning to use Parse::RecDescent include Parse::RecDescent::FAQ and this article from The Perl Journal (Google cache).

Using this module I have recently been able to translate complex proprietary format files supplied from an external source into an internal format for print processing with only a few hours work by writing a formal grammar and making use of Parse::RecDescent - A process solution which has previously taken days, and in some cases weeks, for dedicated parsing code to be written, tested and deployed.

 

perl -le 'print+unpack("N",pack("B32","00000000000000000000001000111110"))'

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•Re: Re: Re: Parsing... possible w/o too much stress ?
by merlyn (Sage) on Mar 22, 2003 at 16:21 UTC

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