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Emacs also has conventional non-incremental search commands, which
require you type the entire search string before searching begins.
`C-s RET STRING RET'
Search for STRING.
`C-r RET STRING RET'
Search backward for STRING.
To do a non-incremental search, first type `C-s RET' (or `C-s C-m').
This enters the minibuffer to read the search string. Terminate the
string with RET to start the search. If the string is not found, the
search command gets an error.
By default, `C-s' invokes incremental search, but if you give it an
empty argument, which would otherwise be useless, it invokes
non-incremental search. Therefore, `C-s RET' invokes non-incremental
search. `C-r RET' also works this way.
Forward and backward non-incremental searches are implemented by the
commands `search-forward' and `search-backward'. You can bind these
commands to keys. The reason that incremental search is programmed to
invoke them as well is that `C-s RET' is the traditional sequence of
characters used in Emacs to invoke non-incremental search.
Non-incremental searches performed using `C-s RET' do not call
`search-forward' right away. They first check if the next character is
`C-w', which requests a word search.
Note: Word Search.
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