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Diffstat (limited to 'contrib/nvi/docs/internals/autowrite')
| -rw-r--r-- | contrib/nvi/docs/internals/autowrite | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/contrib/nvi/docs/internals/autowrite b/contrib/nvi/docs/internals/autowrite new file mode 100644 index 0000000..dbad6c8 --- /dev/null +++ b/contrib/nvi/docs/internals/autowrite @@ -0,0 +1,88 @@ +# @(#)autowrite 8.3 (Berkeley) 2/17/95 + +Vi autowrite behavior, the fields with *'s are "don't cares". + +=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= +Commands that are affected only by autowrite: + +Command File Autowrite? Action: + modified? +----------------------------------------------- +^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. + +=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= +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? (!) +------------------------------------------------------- +# 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. + +=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= +Commands that might be affected by autowrite, but aren't: + +Command File Autowrite? Force? Action: + modified? (!) +------------------------------------------------------- +#: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. |
