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Re: looking Generic File Parser script?

by tachyon (Chancellor)
on Nov 25, 2004 at 23:44 UTC ( #410485=note: print w/replies, xml ) Need Help??


in reply to looking Generic File Parser script?

As noted you want a recursive descent parser like Parse::RecDescent. A parser needs a grammar. Fortunately the Inline:: modules all use PRD to parse the language code so you have a good start on a C grammar in Inline::C::ParseRecDescent and a C++ grammar in Inline::CPP::Grammar

You do not want to generate a HASH as this is unordered, whereas code is definitively ordered. You want what PRD gives you which is an array of array refs to whatever depth. You may find the thread Parse:RecDescent grammar help useful.

cheers

tachyon

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[atcroft]: james28909: That particular questions was a bit of trick, actually (depending on the country you are in). More interesting is, if you are trying to subtract from an epoch time, for instance, you might have to consider when/if DST occurs for a location,
[atcroft]: because you may have to adjust the number of seconds you change from an epoch from 86400 (not to mention leap seconds)....
[atcroft]: james28909: Although if your program is using a database, you might be able to "pass the buck" to the database and ask it to do the date change for you....
[stevieb]: ++ atcroft

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