Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: Extract subroutines from a Perl script. OR: "Only perl can parse Perl." But can it help me to do so?

by samtregar (Abbot)
on Sep 24, 2004 at 17:24 UTC ( #393600=note: print w/replies, xml ) Need Help??


in reply to Extract subroutines from a Perl script. OR: "Only perl can parse Perl." But can it help me to do so?

To make a long story short, is there an easy way (module or whatever) to easily extract subroutines from a Perl script using a Perl script?

To make a long answer short, no. Perl is a context-sensitive language which defies any attempt to write a simple parser. You'll either have to settle for something simple that doesn't handle edge cases or something complex that does.

As an aside, you might be intersted in this take on "only perl can parse Perl": Chasing Shadows

-sam

  • Comment on Re: Extract subroutines from a Perl script. OR: "Only perl can parse Perl." But can it help me to do so?

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://393600]
help
Chatterbox?
[Corion]: Yaerox: That's a somewhat hard problem. Encode solves the conversion part, but for guessing what encoding a file is in, that's the hard part
[Corion]: Yaerox: There is Encode::Guess, but that needs a limited set of inputs, and it also cannot handle multiple single-byte encodings
[Corion]: If you have a BOM, that's a really easy way to recognize UTF-8. Otherwise, you can try to decode a file from UTF-8, and if that works OK and doesn't crash, most likely the file was valid UTF-8
[Corion]: But as "ansi" (Latin-1?) is a single-byte encoding, any file is a valid ANSI file

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (11)
As of 2017-03-28 13:17 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Should Pluto Get Its Planethood Back?



    Results (332 votes). Check out past polls.