Re: symbols verses words

[Perry Smith <pedzsan@gmail.com>]

On Mar 3, 2011, at 8:48 AM, Tassilo Horn wrote:

> Perry Smith <pedzsan@gmail.com> writes:
> 
> Hi Perry,
> 
>>> I think, something like that should do the trick:
>>> 
>>> --8<---------------cut here---------------start------------->8---
>>> (defun isearch-yank-symbol-or-char ()
>>> "Pull next character or symbol from buffer into search string."
>>> (interactive)
>>> (isearch-yank-internal
>>>  (lambda ()
>>>    (if (or (memq (char-syntax (or (char-after) 0)) '(?w ?_))
>>>            (memq (char-syntax (or (char-after (1+ (point))) 0)) '(?w ?_)))
>>>        (forward-symbol 1)
>>>      (forward-char 1))
>>>    (point))))
>>> 
>>> (define-key isearch-mode-map (kbd "C-S-w") 'isearch-yank-symbol-or-char)
>>> --8<---------------cut here---------------end--------------->8---
>>> 
>>> So when you are on a word constituent (?w) or on a symbol constituent
>>> (?_), then do `forward-symbol', else `forward-char'.
>> 
>> Thanks.  The problem is that my emacs (GNU 23.2) doesn't have
>> forward-symbol.  I didn't know how to do that.
> 
> Ah, that function is defined in thingatpt.el, so you are only missing a
> (require 'thingatpt).

Got it... thanks!

Perry