Vi autowrite behavior, the fields with *'s are "don't cares".
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Commands that are affected only by autowrite:
Command File Autowrite? Action:
modified?
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^Z Y Y Write file and suspend.
^Z Y N Suspend.
^Z N * Suspend.
# This behavior is NOT identical to :edit.
^^ Y Y Write file and jump.
^^ Y N Error.
^^ N * Jump.
# The new nvi command ^T (:tagpop) behaves identically to ^].
# This behavior is identical to :tag, :tagpop, and :tagpush with
# force always set to N.
^] Y Y Write file and jump.
^] Y N Error.
^] N * Jump.
# There's no way to specify a force flag to the '!' command.
:! Y Y Write file and execute.
:! Y N Warn (if warn option) and execute.
:! N * Execute.
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Commands that are affected by both autowrite and force:
NOTE: the "force" flag is never passed on, i.e. the write
to the file caused by the autowrite flag is never forced.
Command File Autowrite? Force? Action:
modified? (!)
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# The first rule (YYY) is historic practice, but seems wrong.
# In nvi, :next and :prev commands behave identically to :rewind.
:next Y Y Y Write changes and jump.
:next Y Y N Write changes and jump.
:next Y N Y Abandon changes and jump.
:next Y N N Error.
:next N * * Jump.
:rewind Y Y Y Abandon changes and jump.
:rewind Y Y N Write changes and jump.
:rewind Y N Y Abandon changes and jump.
:rewind Y N N Error.
:rewind N * * Jump.
# The new nvi commands, :tagpop and :tagtop, behave identically to :tag.
# Note, this behavior is the same as :rewind and friends, as well.
:tag Y Y Y Abandon changes and jump.
:tag Y Y N Write changes and jump.
:tag Y N Y Abandon changes and jump.
:tag Y N N Error.
:tag N * * Jump.
# The command :suspend behaves identically to :stop.
:stop Y Y Y Suspend.
:stop Y Y N Write changes and suspend.
:stop Y N Y Suspend.
:stop Y N N Suspend.
:stop N * * Suspend.
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Commands that might be affected by autowrite, but aren't:
Command File Autowrite? Force? Action:
modified? (!)
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#:ex, and :vi (executed while in vi mode) behave identically to :edit.
:edit Y * Y Abandon changes and jump.
:edit Y * N Error.
:edit N * * Jump.
:quit Y * Y Quit.
:quit Y * N Error.
:quit N * * Quit.
:shell * * * Execute shell.
:xit Y * * Write changes and exit.
:xit N * * Exit.
