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Change how /etc/NEWS presents character folding

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* NEWS: Note that character folding is no longer the default.
This commit is contained in:
John Wiegley 2016-03-09 15:32:22 -08:00
parent b417c5a3b3
commit 83b2a20714
1 changed files with 15 additions and 16 deletions
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31
etc/NEWS
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@ -622,31 +622,30 @@ item as before.
** Search and Replace ** Search and Replace
+++ +++
*** `isearch' and `query-replace' can now perform character folding in matches. *** `isearch' and `query-replace' can now perform character folding in
Isearch does that by default, while `query-replace' will do that if matches. Character folding is enabled by customizing
the new variable `replace-character-fold' is customized to a non-nil `search-default-mode' to the value `character-fold-to-regexp'. You
value. This is analogous to case folding, but instead of disregarding can also toggle character folding in the middle of a search by typing
case variants, it disregards wider classes of distinctions between `M-s ''.
similar characters. (Case folding is a special case of character
folding.) This means many characters in the search string will match `query-replace' honors character folding this if the new variable
entire groups of characters instead of just themselves. `replace-character-fold' is customized to a non-nil value. This is
analogous to case folding, but instead of disregarding case variants,
it disregards wider classes of distinctions between similar
characters. (Case folding is a special case of character folding.)
This means many characters in the search string will match entire
groups of characters instead of just themselves.
For instance, the " will match all variants of double quotes (like “ For instance, the " will match all variants of double quotes (like “
and ”), and the letter a will match all of its accented cousins, even and ”), and the letter a will match all of its accented cousins, even
those composed of multiple characters, as well as many other symbols those composed of multiple characters, as well as many other symbols
like ℀, ℁, ⒜, and ⓐ. like ℀, ℁, ⒜, and ⓐ.
Character folding is enabled by customizing `search-default-mode' to
the value `character-fold-to-regexp'. If you want to turn character
folding off, customize the value of `search-default-mode' to the `nil'
value. You can also toggle character folding in the middle of a
search by typing `M-s ''.
+++ +++
*** New user option `search-default-mode'. *** New user option `search-default-mode'.
This option specifies the default mode for Isearch. The default This option specifies the default mode for Isearch. The default
value, `character-fold-to-regexp' specifies that Isearch should fold value, nil specifies that Isearch does not fold characters when
characters when searching. searching.
+++ +++
*** New function `character-fold-to-regexp' can be used *** New function `character-fold-to-regexp' can be used