Matthew Flatt 4d9427af44 add path-extension, path-has-extension? and path-{add,replace}-extension ... Provide a cleaned-up set up path-extension functions. In contrast to `path-{add,replace}-suffix` and `filename-extension`, a dot at the beginning of a path element is not treated as an extension separator. Also, `path-extension` returns an extension including its separator, which is more consistent with other extension functions. The new `path-has-extension?` function replaces many uses of regexp matching in the base collections. Closes #1307		2016-04-16 17:56:34 -06:00
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file.rkt	add path-extension, path-has-extension? and path-{add,replace}-extension	2016-04-16 17:56:34 -06:00
filename-version.rkt