Revision as of 22:58, 7 May 2015 (view source) rosettacode>Kevin Ryde (Emacs builtin file-name-extension) ← Older edit		Revision as of 09:59, 27 May 2015 (view source) Paul (talk \| contribs) m (Minor grammar correction) Newer edit →
Line 1: {{draft task}} Write a program that takes one string argument representing the path to a file and returns the ~~files~~file's extension, or the null string if the file path has no extension. An extension appears after the last period in the file name and consists of one or more letters or numbers. Show here the action of your routine on the following examples:

Extract file extension: Difference between revisions

Extract file extension (view source)