simple regex question

redss has asked for the wisdom of the Perl Monks concerning the following question:

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Re: simple regex question by runrig (Abbot) on Dec 02, 2009 at 18:24 UTC
If you use File::Basename, you don't need a regex.	[reply]
Re: simple regex question by kennethk (Abbot) on Dec 02, 2009 at 18:27 UTC
Rather than using a regular expression, it's probably better to use the existing code base to do your job for you. In this case, the core module File::Spec can parse the path for you using the splitpath method. However, if there's a good reason to do it with a regular expression, you can use: `/([^\\]*)$/` which will match and extract all the characters between the last backslash and the end of the string. Note this will fail on to do what you want on non-MS systems. See perlretut for more regular expression information.	[reply] [d/l]
Re: simple regex question by TomDLux (Vicar) on Dec 02, 2009 at 20:58 UTC
If you don't want to use File::Basename or File::Spec, you still shouldn't use regexen. Why use a complicated machine which many parameters, when what you want is a salami-slicer? If you don't use the clean and simple tools, use split. Of course you have to decipher whether to split on '/' for Macs or unix, '\' for Windows, was it ':' on VMS?, or something else ... all that is handled for you if you use the right tool. After you split, just take the last component and that's the filename. -- `TTTATCGGTCGTTATATAGATGTTTGCA`	[reply]