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(emacs)Format Justification

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Justification in Formatted Text
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   When editing formatted text, you can specify various styles of
justification for a paragraph.  The style you specify automatically
affects the Emacs fill commands.

   The Justification submenu provides a convenient interface for
specifying the style.  The submenu contains five items:

`Flush Left'
     This is the most common style of justification (at least for
     English).  Lines are aligned at the left margin but left uneven at
     the right.

`Flush Right'
     This aligns each line with the right margin.  Spaces and tabs are
     added on the left, if necessary, to make lines line up on the
     right.

`Full'
     This justifies the text, aligning both edges of each line.
     Justified text looks very nice in a printed book, where the spaces
     can all be adjusted equally, but it does not look as nice with a
     fixed-width font on the screen.  Perhaps a future version of Emacs
     will be able to adjust the width of spaces in a line to achieve
     elegant justification.

`Center'
     This centers every line between the current margins.

`None'
     This turns off filling entirely.  Each line will remain as you
     wrote it; the fill and auto-fill functions will have no effect on
     text which has this setting.  You can, however, still indent the
     left margin.  In unfilled regions, all newlines are treated as
     hard newlines (Note: Hard and Soft Newlines) .

   In Enriched mode, you can also specify justification from the
keyboard using the `M-j' prefix character:

`M-j l'
     Make the region left-filled (`set-justification-left').

`M-j r'
     Make the region right-filled (`set-justification-right').

`M-j f'
     Make the region fully-justified (`set-justification-full').

`M-j c'
`M-S'
     Make the region centered (`set-justification-center').

`M-j u'
     Make the region unfilled (`set-justification-none').

   Justification styles apply to entire paragraphs.  All the
justification-changing commands operate on the paragraph containing
point, or, if the region is active, on all paragraphs which overlap the
region.

   The default justification style is specified by the variable
`default-justification'.  Its value should be one of the symbols
`left', `right', `full', `center', or `none'.