I just briefly looked through the documentation for GNU Emacs and could not find the equivalent of 'valid-sre?'.
And it looks like the regular expressions are not compiled before they are used: string-match takes a regular _expression_ to search for as a string: http://www.gnu.org/software/emacs/manual/html_node/elisp/Regexp-Search.html#Regexp-Search Finally, the bottom of this page talking about using Icicles to interactively learn
about using regular expressions: http://www.emacswiki.org/emacs/RegularExpression
On 11/26/2013 12:18 PM, Arthur A. Gleckler wrote: