Re: Converting a non-escaped regexp to an escaped version

[Juanma Barranquero]

On 6/7/07, HippoMan <hippoman@gmail.com> wrote:

> 1. Test a regular expression interactively, for example, via
>    the use of M-x re-search-forward.
>
> 2. Assume that I finally decide that the following regexp is
>    the one that I want to use within my elisp code:
>
>      \bfoo\b.*:.*\bbar\([0-9]\{9\}quack\.quack\)\b
>
> 3. Put this regexp to the kill ring.
>
> 4. Use my proposed function to yank it into my elisp code
>    (for example, within an invocation of `match-string'), as follows:
>
>      \\bfoo\\b.*:.*\\bbar\\([0-9]\\{9\\}quack\\.quack\\)\\b

You could use M-x re-builder to test your regexp, which is very nice,
supports several regexp syntaxes and can highlight subexpressions
(groups).

Then, inside the re-builder buffer, do C-c C-w (that's `reb-copy') to
copy the regexp.

            Juanma