VI(1)VI(1)NAME
vi - screen oriented (visual) display editor based on ex
SYNOPSIS
vi [ -t tag ] [ -r ] [ +command ] [ -l ] [ -wn ] name ...
DESCRIPTION
Vi (visual) is a display oriented text editor based on ex(1). Ex and
vi run the same code; it is possible to get to the command mode of ex
from within vi and vice-versa.
The Vi Quick Reference card and the Introduction to Display Editing
with Vi provide full details on using vi.
The vi editor has been modified to support several new commands. The
first command is :pf. This command prints the current file stack.
Files are pushed onto the file stack whenever the editor changes to a
new file (e.g. the :e or :ta commands).
The second command is :e^. This command pops a file off the file stack
and edits it. The file stack mechanism is useful to "tag" down a call
chain and then pop back up.
The third command is :pp. This command pops a file off the file stack,
but continues editing the current file.
The :e@ command exchanges the top two elements of the file stack and
edits the new top.
The environment variable TAGS defines a colon separated list of
directories to search for tags files.
FILES
See ex(1).
SEE ALSO
ex (1), edit (1), ``Vi Quick Reference'' card, ``An Introduction to
Display Editing with Vi''.
AUTHOR
William Joy
Mark Horton added macros to visual mode and is maintaining version 3
BUGS
Software tabs using ^T work only immediately after the autoindent.
Left and right shifts on intelligent terminals don't make use of insert
and delete character operations in the terminal.
The wrapmargin option can be fooled since it looks at output columns
when blanks are typed. If a long word passes through the margin and
onto the next line without a break, then the line won't be broken.
Insert/delete within a line can be slow if tabs are present on
intelligent terminals, since the terminals need help in doing this
correctly.
Saving text on deletes in the named buffers is somewhat inefficient.
The source command does not work when executed as :source; there is no
way to use the :append, :change, and :insert commands, since it is not
possible to give more than one line of input to a : escape. To use
these on a :global you must Q to ex command mode, execute them, and
then reenter the screen editor with vi or open.
3rd Berkeley Distribution April 29, 1985 VI(1)