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symbols verses words
From: |
Perry Smith |
Subject: |
symbols verses words |
Date: |
Wed, 2 Mar 2011 18:20:00 -0600 |
I need some help understanding Emac's design. I use a lot of "word" constructs
where I *think* I should be using symbol. For example, if I'm writing C code
and I want to find foo but not foo_bar, I usually do \<foo\> but really it
seems that I should be doing \_<foo\_> ... fine. I can make that adjustment.
But when I do incremental search, I often hit ^w to pull in the next word but
what I really want (often but not always) is to pull in the next symbol (into
the search string). So if I'm sitting at this_that, I'd ilke to hit ^W
(perhaps) and pull in this_that instead of just this.
So, I started looking at isearch-yank-word-or-char and I was going to concoct
isearch-yank-symbol-or-char and got stuck-- at least briefly. Because not only
is _ marked as symbol, -, +, /, *, etc are marked as symbol characters too. So
now, I'm confused...
If I have: this this_that this-that
and search for \_<this\_> I hit the first and third this -- which is exactly
what I want. But how is it doing that since this_that and this-that are the
same as far as looking at the syntax table entries? They are both wwww_wwww.
I'd like to understand how the \_< and \_> constructs work so I can make my
isearch-yank-symbol-or-char work in a consistent manner.
Thanks,
Perry
Re: symbols verses words, MBR, 2011/03/03