| Current Path : /usr/src/contrib/nvi/docs/internals/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/contrib/nvi/docs/internals/autowrite |
# @(#)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.