(emacs.info) Fill Commands

 
 Explicit Fill Commands
 ----------------------
 
 `M-q'
      Fill current paragraph (`fill-paragraph').
 
 `C-x f'
      Set the fill column (`set-fill-column').
 
 `M-x fill-region'
      Fill each paragraph in the region (`fill-region').
 
 `M-x fill-region-as-paragraph'
      Fill the region, considering it as one paragraph.
 
 `M-s'
      Center a line.
 
    To refill a paragraph, use the command `M-q' (`fill-paragraph').
 This operates on the paragraph that point is inside, or the one after
 point if point is between paragraphs.  Refilling works by removing all
 the line-breaks, then inserting new ones where necessary.
 
    To refill many paragraphs, use `M-x fill-region', which divides the
 region into paragraphs and fills each of them.
 
    `M-q' and `fill-region' use the same criteria as `M-h' for finding
 paragraph boundaries ( Paragraphs).  For more control, you can
 use `M-x fill-region-as-paragraph', which refills everything between
 point and mark.  This command deletes any blank lines within the
 region, so separate blocks of text end up combined into one block.
 
    A numeric argument to `M-q' causes it to "justify" the text as well
 as filling it.  This means that extra spaces are inserted to make the
 right margin line up exactly at the fill column.  To remove the extra
 spaces, use `M-q' with no argument.  (Likewise for `fill-region'.)
 Another way to control justification, and choose other styles of
 filling, is with the `justification' text property; see  Format
 Justification.
 
    The command `M-s' (`center-line') centers the current line within
 the current fill column.  With an argument N, it centers N lines
 individually and moves past them.
 
    The maximum line width for filling is in the variable `fill-column'.
 Altering the value of `fill-column' makes it local to the current
 buffer; until that time, the default value is in effect.  The default
 is initially 70.   Locals.  The easiest way to set `fill-column'
 is to use the command `C-x f' (`set-fill-column').  With a numeric
 argument, it uses that as the new fill column.  With just `C-u' as
 argument, it sets `fill-column' to the current horizontal position of
 point.
 
    Emacs commands normally consider a period followed by two spaces or
 by a newline as the end of a sentence; a period followed by just one
 space indicates an abbreviation and not the end of a sentence.  To
 preserve the distinction between these two ways of using a period, the
 fill commands do not break a line after a period followed by just one
 space.
 
    If the variable `sentence-end-double-space' is `nil', the fill
 commands expect and leave just one space at the end of a sentence.
 Ordinarily this variable is `t', so the fill commands insist on two
 spaces for the end of a sentence, as explained above.  
 Sentences.
 
    If the variable `colon-double-space' is non-`nil', the fill commands
 put two spaces after a colon.
Info Catalog
(emacs.info) Auto Fill
(emacs.info) Filling
(emacs.info) Fill Prefix
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