Re: "local hlsearch"

Ethan Alan


On Tue, Apr 1, 2014 at 1:54 PM, <meino.cramer@gmx.de> wrote:
> John Beckett <johnb.beckett@gmail.com> [14-04-01 17:28]:
>> meino wrote:
>> > I often use a search'n'replace on an area, which is limited by
>> > a previously selected visual block.
>> > Additional hlsearch is on by default.
>> > After the searech'n'replace has ended, the found places are
>> > marked all over the whole text.
>> > This is often irritating to me.
>> > Is there a way to limit the highlights set by hlsearch to
>> > those place of the visual block area?
>>
>> As the other reply said, map a key to turn highlights off. See:
>> http://vim.wikia.com/wiki/Highlight_all_search_pattern_matches
>>
>> However, while not really helpful for what you asked, it is
>> possible to limit highlights to the last visually selected
>> block. See:
>> http://vim.wikia.com/wiki/Search_and_replace_in_a_visual_selection
>>
>> For example, consider these two searches:
>> /[abc]
>> /\%V[abc]
>>
>> The first finds all a or b or c, everywhere.
>>
>> The second finds the same, but only in the last visual
>> selection (what would be highlighted if gv were used).
>>
>> John
>>
>>
>>
> Hi John,
>
> thanks for your reply!
> I want to 'search and replace' not only to search.

If I understand correctly, using /\%V in addition to '<,'> allows you
to search-and-replace ONLY in the visually selected area. This could
be handy if you have block selected (ctrl-v) a bit of text and want to
search-and-replace ONLY in that visually selected text. I.e.
'<,'>s/foo/bar/g will replace foo with bar anywhere in the lines
containing the visual selection, whereas '<,'>s/\%Vfoo/bar/g will
replace foo with bar ONLY in the region of text visually selected.

To address your original question, it appears as if, at least on my
machine with my configuration, that using the \%V variant of this
search-and-replace the text will also only be highlighted in that
visual selection, so if you've replace all occurrences of the matched
text nothing will be left highlighted and you won't have to :set
nohlsearch.

> I always thought that '<,'> already say: Do that only inside
> the visual block.
> Why do I need to specify \%V additionally.
> Or do I get all this totally wrong ??????
>
> By the way: I treid to find the expression \%V inside the vim
> help...but didnt foudn a match. What is the correct
> keyword to find the according help?
>
> Best regards,
> mcc
>
>
>
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