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bug#11095: 24.0.94; hi-lock-face-buffer/unhighlight-regexp': Augment?
From: |
Juri Linkov |
Subject: |
bug#11095: 24.0.94; hi-lock-face-buffer/unhighlight-regexp': Augment? |
Date: |
Fri, 12 Oct 2012 01:41:04 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.2.50 (x86_64-pc-linux-gnu) |
> The patch allows highlighting of tag at point. (Note that for all
> practical purposes, tag at point is the symbol at point.) See
> Part_I/Item-2 below for a usecase.
> [...]
> + (cond ((not tag) "")
> + ((eq tagf 'find-tag-default)
> + (format "\\_<%s\\_>" (regexp-quote tag)))
> [...]
>> As a programmer, I use highlighting to trace variable dependencies
>> within a function. For example, in the example below, after
>> highlighting the variables in __different__ faces, I will come to the
>> conclusion that "a" depends on "d" and "tmp".
>>
>> c = d;
>> b = c + tmp;
>> a = b;
>>
>> And I use this very often to track variables and how they get their
>> values from.
>>
>> If I were to use the default Emacs provided behaviour then I would
>> have to press M-n multiple times as I highlight more and more
>> symbols. (Typically I have 3-5 symbols highlighted before I turn off
>> highlighting.)
Would you agree that a better way to implement your proposal is to add a new
command to hi-lock.el with a name like `highlight-symbol'? I mean there are
already such hi-lock commands as:
1. highlight-lines-matching-regexp (that corresponds to occur)
2. highlight-regexp (that corresponds to isearch-forward-regexp)
3. highlight-phrase (that corresponds to isearch-forward-word)
what is currently missing is this command:
4. highlight-symbol (that corresponds to isearch-forward-symbol)
Then both highlight-phrase and highlight-symbol could use internally
isearch functions that turn words and symbols into regexps
and that will do the right thing using search-upper-case and
search-whitespace-regexp.
bug#11095: 24.0.94; hi-lock-face-buffer/unhighlight-regexp': Augment?, Jambunathan K, 2012/10/12
bug#11095: 24.0.94; hi-lock-face-buffer/unhighlight-regexp': Augment?, Jambunathan K, 2012/10/12