Commit 4a1b539b authored by Eli Zaretskii's avatar Eli Zaretskii
Browse files

(Incremental Search): Document C-\ and C-^.

(Regexps): Document the \cx and \Cx, and the describe-categories command.
parent 193fba87
......@@ -59,7 +59,7 @@ cursor is after the first @samp{FOO} after the place where you started the
search. At each step, the buffer text that matches the search string is
highlighted, if the terminal can do that; at each step, the current search
string is updated in the echo area. Multilingual text can be input by
toggling input methods with @kbd{C-\} or @kbd{C-^}.
toggling input methods with @kbd{C-\} or @kbd{C-^}, see below.
If you make a mistake in typing the search string, you can cancel
characters with @key{DEL}. Each @key{DEL} cancels the last character of
......@@ -112,6 +112,28 @@ entirely, returning point to where it was when the search started.
case-sensitive. If you delete the upper-case character from the search
string, it ceases to have this effect. @xref{Search Case}.
@cindex searching for non-ASCII characters
@cindex input method, during incremental search
If an input method (@pxref{Input Methods}) is turned on in the
current buffer when you start the search, that input method is used to
read the characters while you type the search string. Emacs indicates
that by including the input method mnemonic in its prompt, like this:
@example
I-search [@var{im}]:
@end example
@noindent
@findex isearch-toggle-input-method
@findex isearch-toggle-specified-input-method
where @var{im} is the mnemonic of the active input method. You can
toggle (enable or disable) the input method while you type the search
string with @kbd{C-\} (@code{isearch-toggle-input-method}). You can
turn on a certain (non-default) input method with @kbd{C-^}
(@code{isearch-toggle-specified-input-method}), which prompts for the
name of the input method. Note that the input method you turn on
during incremental search is turned on in the current buffer as well.
If a search is failing and you ask to repeat it by typing another
@kbd{C-s}, it starts again from the beginning of the buffer. Repeating
a failing reverse search with @kbd{C-r} starts again from the end. This
......@@ -654,6 +676,19 @@ either @samp{-} or a space character.
@item \S@var{c}
matches any character whose syntax is not @var{c}.
@cindex categories of characters
@cindex characters which belong to a specific language
@findex describe-categories
@item \c@var{c}
matches any character that belongs to the category @var{c}. For
example, @samp{\cc} matches Chinese characters, @samp{\cg} matches
Greek characters, etc. For the description of the known categories,
type @kbd{M-x describe-categories @key{RET}}.
@item \C@var{c}
matches any character that does @emph{not} belong to category
@var{c}.
@end table
The constructs that pertain to words and syntax are controlled by the
......
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