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Feature request: char-fold-to-regexp like isearch #622

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sooheon opened this issue Aug 12, 2016 · 2 comments
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Feature request: char-fold-to-regexp like isearch #622

sooheon opened this issue Aug 12, 2016 · 2 comments

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@sooheon
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sooheon commented Aug 12, 2016

This post introduces a feature of emacs 25, searching for unicode characters (like á, ⓐ, or 𝒶) just by typing ascii "a".

This seems useful, could it be added to swiper without too much hassle?
@sooheon
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sooheon commented Sep 18, 2016

There is a function char-fold-to-regexp that returns the necessary regexp for this.

@abo-abo
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abo-abo commented Sep 20, 2016

Thanks, try it out. I don't know how slow this can potentially be. For small buffers, for sure no problem. And no compatibility to counsel-grep, since grep does not fold.

@joaocortes joaocortes mentioned this issue Mar 26, 2019
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abo-abo added a commit that referenced this issue Jun 22, 2019
@abo-abo
swiper.el (swiper-isearch): Allow char-fold-to-regexp
034f3af 
Set:

    (setq search-default-mode 'char-fold-to-regexp)

And your search for "un" will also match "Günther".

Fixes #2095
Re #622
astoff pushed a commit to astoff/swiper that referenced this issue Jan 1, 2021
@abo-abo @astoff
swiper.el (swiper-isearch): Allow char-fold-to-regexp
d79d89f 
Set:

    (setq search-default-mode 'char-fold-to-regexp)

And your search for "un" will also match "Günther".

Fixes abo-abo#2095
Re abo-abo#622
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@sooheon @abo-abo