The Emacs commands for manipulating sentences and paragraphs are mostly
on `Meta-' keys, and therefore are like the word-handling commands.
Move back to the beginning of the sentence (`backward-sentence').
Move forward to the end of the sentence (`forward-sentence').
Kill forward to the end of the sentence (`kill-sentence').
Kill back to the beginning of the sentence
The commands `Meta-a' and `Meta-e' (`backward-sentence' and
`forward-sentence') move to the beginning and end of the current
sentence, respectively. They resemble `Control-a' and `Control-e',
which move to the beginning and end of a line. Unlike their
counterparts, `Meta-a' and `Meta-e' move over successive sentences if
repeated or given numeric arguments. Emacs assumes the typist's
convention is followed, and thus considers a sentence to end wherever
there is a `.', `?', or `!' followed by the end of a line or two
spaces, with any number of `)', `]', `'', or `"' characters allowed in
between. A sentence also begins or ends wherever a paragraph begins or
Neither `M-a' nor `M-e' moves past the newline or spaces beyond the
sentence edge at which it is stopping.
`M-a' and `M-e' have a corresponding kill command, just like `C-a'
and `C-e' have `C-k'. The command is `M-k' (`kill-sentence') which
kills from point to the end of the sentence. With minus one as an
argument it kills back to the beginning of the sentence. Larger
arguments serve as repeat counts.
There is a special command, `C-x <DEL>' (`backward-kill-sentence'),
for killing back to the beginning of a sentence, which is useful when
you change your mind in the middle of composing text.
The variable `sentence-end' controls recognition of the end of a
sentence. It is a regexp that matches the last few characters of a
sentence, together with the whitespace following the sentence. Its
normal value is:
"[.?!]\"')]*\\($\\|\t\\| \\)[ \t\n]*"
This example is explained in the section on regexps. Note: Regexps.
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