PATCH: isearch-yank-until-char

[Karl Fogel]

This patch implements 'isearch-yank-until-char', a new yank command in isearch.

While in an isearch, one types C-M-c to yank into the search string everything 
from point up to (but not including) the next instance of a specified 
character.  It prompts for the character.

For example, assume point is on the "m" after the "#" mark below:

  [example from a recent macro I wrote](#markdown-link-syntax)

Start an isearch with C-s, then do C-M-c followed by ")".  The search string is 
now "markdown-link-syntax".

I have found this functionality very helpful in macros.

If it's a useful contribution to Emacs, then I'll install it.  I'll wait at 
least three days to get feedback, both about the feature itself and about the 
choice of M-C-c as the keybinding.  If there's no response or no consensus, 
then I won't install it, as being conservative about isearch seems appropriate.

Best regards,
-Karl

patch-isearch-yank-until-char.txt
Description: Patch to implement isearch-yank-until-char