459 lines
13 KiB
C
459 lines
13 KiB
C
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/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)excmd.c 8.58 (Berkeley) 8/9/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <termios.h>
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#include "compat.h"
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#include <db.h>
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#include <regex.h>
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#include "vi.h"
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#include "excmd.h"
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/*
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* This array maps ex command names to command functions.
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*
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* The order in which command names are listed below is important --
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* ambiguous abbreviations are resolved to be the first possible match,
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* e.g. "r" means "read", not "rewind", because "read" is listed before
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* "rewind".
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*
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* The syntax of the ex commands is unbelievably irregular, and a special
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* case from beginning to end. Each command has an associated "syntax
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* script" which describes the "arguments" that are possible. The script
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* syntax is as follows:
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*
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* ! -- ! flag
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* 1 -- flags: [+-]*[pl#][+-]*
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* 2 -- flags: [-.+^]
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* 3 -- flags: [-.+^=]
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* b -- buffer
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* c[01+a] -- count (0-N, 1-N, signed 1-N, address offset)
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* f[N#][or] -- file (a number or N, optional or required)
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* l -- line
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* S -- string with file name expansion
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* s -- string
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* W -- word string
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* w[N#][or] -- word (a number or N, optional or required)
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*/
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EXCMDLIST const cmds[] = {
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/* C_SCROLL */
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{"\004", ex_pr, E_ADDR2|E_NORC,
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"",
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"^D",
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"scroll lines"},
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/* C_BANG */
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{"!", ex_bang, E_ADDR2_NONE|E_NORC,
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"S",
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"[line [,line]] ! command",
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"filter lines through commands or run commands"},
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/* C_HASH */
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{"#", ex_number, E_ADDR2|E_F_PRCLEAR|E_NORC,
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"ca1",
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"[line [,line]] # [count] [l]",
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"display numbered lines"},
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/* C_SUBAGAIN */
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{"&", ex_subagain, E_ADDR2|E_NORC,
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"s",
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"[line [,line]] & [cgr] [count] [#lp]",
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"repeat the last subsitution"},
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/* C_STAR */
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{"*", ex_at, 0,
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"b",
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"* [buffer]",
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"execute a buffer"},
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/* C_SHIFTL */
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{"<", ex_shiftl, E_ADDR2|E_AUTOPRINT|E_NORC,
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"ca1",
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"[line [,line]] <[<...] [count] [flags]",
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"shift lines left"},
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/* C_EQUAL */
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{"=", ex_equal, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF,
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"1",
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"[line] = [flags]",
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"display line number"},
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/* C_SHIFTR */
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{">", ex_shiftr, E_ADDR2|E_AUTOPRINT|E_NORC,
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"ca1",
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"[line [,line]] >[>...] [count] [flags]",
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"shift lines right"},
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/* C_AT */
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{"@", ex_at, 0,
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"b",
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"@ [buffer]",
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"execute a buffer"},
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/* C_APPEND */
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{"append", ex_append, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF,
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"!",
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"[line] a[ppend][!]",
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"append input to a line"},
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/* C_ABBR */
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{"abbreviate", ex_abbr, E_NOGLOBAL,
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"W",
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"ab[brev] [word replace]",
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"specify an input abbreviation"},
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/* C_ARGS */
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{"args", ex_args, E_NOGLOBAL|E_NORC,
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"",
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"ar[gs]",
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"display file argument list"},
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/* C_BG */
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{"bg", ex_bg, E_NOGLOBAL|E_NORC,
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"",
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"bg",
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"background the current screen"},
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/* C_CHANGE */
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{"change", ex_change, E_ADDR2|E_NORC|E_ZERODEF,
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"!ca",
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"[line [,line]] c[hange][!] [count]",
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"change lines to input"},
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/* C_CD */
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{"cd", ex_cd, E_NOGLOBAL,
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"!f1o",
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"cd[!] [directory]",
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"change the current directory"},
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/* C_CHDIR */
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{"chdir", ex_cd, E_NOGLOBAL,
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"!f1o",
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"chd[ir][!] [directory]",
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"change the current directory"},
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/* C_COPY */
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{"copy", ex_copy, E_ADDR2|E_AUTOPRINT|E_NORC,
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"l1",
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"[line [,line]] co[py] line [flags]",
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"copy lines elsewhere in the file"},
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/*
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* !!!
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* Adding new commands starting with 'd' may break the delete command code
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* in ex_cmd() (the ex parser). Read through the comments there, first.
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*/
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/* C_DELETE */
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{"delete", ex_delete, E_ADDR2|E_AUTOPRINT|E_NORC,
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"bca1",
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"[line [,line]] d[elete][flags] [buffer] [count] [flags]",
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"delete lines from the file"},
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/* C_DISPLAY */
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{"display", ex_display, E_NOGLOBAL|E_NORC,
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"w1r",
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"display b[uffers] | s[creens] | t[ags]",
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"display buffers, screens or tags"},
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/* C_DIGRAPH */
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{"digraph", ex_digraph, E_NOGLOBAL|E_NOPERM|E_NORC,
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"",
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"digraph",
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"specify digraphs (not implemented)"},
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/* C_EDIT */
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{"edit", ex_edit, E_NOGLOBAL|E_NORC,
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"f1o",
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"e[dit][!] [+cmd] [file]",
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"begin editing another file"},
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/* C_EX */
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{"ex", ex_edit, E_NOGLOBAL|E_NORC,
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"f1o",
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"ex[!] [+cmd] [file]",
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"begin editing another file"},
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/* C_EXUSAGE */
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{"exusage", ex_usage, E_NOGLOBAL|E_NORC,
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"w1o",
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"[exu]sage [command]",
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"display ex command usage statement"},
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/* C_FILE */
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{"file", ex_file, E_NOGLOBAL|E_NORC,
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"f1o",
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"f[ile] [name]",
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"display (and optionally set) file name"},
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/* C_FG */
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{"fg", ex_fg, E_NOGLOBAL|E_NORC,
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"f1o",
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"fg [file]",
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"switch the current screen and a backgrounded screen"},
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/* C_GLOBAL */
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{"global", ex_global, E_ADDR2_ALL|E_NOGLOBAL|E_NORC,
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"!s",
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"[line [,line]] g[lobal][!] [;/]RE[;/] [commands]",
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"execute a global command on lines matching an RE"},
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/* C_HELP */
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{"help", ex_help, E_NOGLOBAL|E_NORC,
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"",
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"he[lp]",
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"display help statement"},
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/* C_INSERT */
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{"insert", ex_insert, E_ADDR1|E_NORC,
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"!",
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"[line] i[nsert][!]",
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"insert input before a line"},
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/* C_JOIN */
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{"join", ex_join, E_ADDR2|E_AUTOPRINT|E_NORC,
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"!ca1",
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"[line [,line]] j[oin][!] [count] [flags]",
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"join lines into a single line"},
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/* C_K */
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{"k", ex_mark, E_ADDR1|E_NORC,
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"w1r",
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"[line] k key",
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"mark a line position"},
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/* C_LIST */
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{"list", ex_list, E_ADDR2|E_F_PRCLEAR|E_NORC,
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"ca1",
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"[line [,line]] l[ist] [count] [#]",
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"display lines in an unambiguous form"},
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/* C_MOVE */
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{"move", ex_move, E_ADDR2|E_AUTOPRINT|E_NORC,
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"l",
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"[line [,line]] m[ove] line",
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"move lines elsewhere in the file"},
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/* C_MARK */
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{"mark", ex_mark, E_ADDR1|E_NORC,
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"w1r",
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"[line] ma[rk] key",
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"mark a line position"},
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/* C_MAP */
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{"map", ex_map, 0,
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"!W",
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"map[!] [keys replace]",
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"map input or commands to one or more keys"},
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/* C_MKEXRC */
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{"mkexrc", ex_mkexrc, E_NOGLOBAL|E_NORC,
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"!f1r",
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"mkexrc[!] file",
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"write a .exrc file"},
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/* C_NEXT */
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{"next", ex_next, E_NOGLOBAL|E_NORC,
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"!fN",
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"n[ext][!] [+cmd] [file ...]",
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"edit (and optionally specify) the next file"},
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/* C_NUMBER */
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{"number", ex_number, E_ADDR2|E_F_PRCLEAR|E_NORC,
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"ca1",
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"[line [,line]] nu[mber] [count] [l]",
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"change display to number lines"},
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/* C_OPEN */
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{"open", ex_open, E_ADDR1,
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"s",
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"[line] o[pen] [/RE/] [flags]",
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"enter \"open\" mode (not implemented)"},
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/* C_PRINT */
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{"print", ex_pr, E_ADDR2|E_F_PRCLEAR|E_NORC,
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"ca1",
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"[line [,line]] p[rint] [count] [#l]",
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"display lines"},
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/* C_PRESERVE */
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{"preserve", ex_preserve, E_NOGLOBAL|E_NORC,
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"",
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"pre[serve]",
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"preserve an edit session for recovery"},
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/* C_PREVIOUS */
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{"previous", ex_prev, E_NOGLOBAL|E_NORC,
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"!",
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"prev[ious][!]",
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"edit the previous file in the file argument list"},
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/* C_PUT */
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{"put", ex_put, E_ADDR1|E_AUTOPRINT|E_NORC|E_ZERO,
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"b",
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"[line] pu[t] [buffer]",
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"append a cut buffer to the line"},
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/* C_QUIT */
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{"quit", ex_quit, E_NOGLOBAL|E_NORC,
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"!",
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"q[uit][!]",
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"exit ex/vi"},
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/* C_READ */
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{"read", ex_read, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF,
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"s",
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"[line] r[ead] [!cmd | [file]]",
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"append input from a command or file to the line"},
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/* C_RECOVER */
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{"recover", ex_recover, E_NOGLOBAL|E_NORC,
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"!f1r",
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"recover[!] file",
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"recover a saved file"},
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/* C_RESIZE */
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{"resize", ex_resize, E_NOGLOBAL|E_NORC,
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"c+",
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"resize [+-]rows",
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"grow or shrink the current screen"},
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/* C_REWIND */
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{"rewind", ex_rew, E_NOGLOBAL|E_NORC,
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"!",
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"rew[ind][!]",
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"re-edit all the files in the file argument list"},
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/* C_SUBSTITUTE */
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{"substitute", ex_substitute, E_ADDR2|E_NORC,
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"s",
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"[line [,line]] s[ubstitute] [[/;]RE[/;]/repl[/;] [cgr] [count] [#lp]]",
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"substitute on lines matching an RE"},
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/* C_SCRIPT */
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{"script", ex_script, E_NOGLOBAL|E_NORC,
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"!f1o",
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"sc[ript][!] [file]",
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"run a shell in a screen"},
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/* C_SET */
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{"set", ex_set, E_NOGLOBAL,
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"wN",
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"se[t] [option[=[value]]...] [nooption ...] [option? ...] [all]",
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"set options (use \":set all\" to see all options)"},
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/* C_SHELL */
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{"shell", ex_shell, E_NOGLOBAL|E_NORC,
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"",
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"sh[ell]",
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"suspend editing and run a shell"},
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/* C_SOURCE */
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{"source", ex_source, E_NOGLOBAL,
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"f1r",
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"so[urce] file",
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"read a file of ex commands"},
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/* C_SPLIT */
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{"split", ex_split, E_NOGLOBAL|E_NORC,
|
||
|
|
"fNo",
|
||
|
|
"sp[lit] [file ...]",
|
||
|
|
"split the current screen into two screens"},
|
||
|
|
/* C_STOP */
|
||
|
|
{"stop", ex_stop, E_NOGLOBAL|E_NORC,
|
||
|
|
"!",
|
||
|
|
"st[op][!]",
|
||
|
|
"suspend the edit session"},
|
||
|
|
/* C_SUSPEND */
|
||
|
|
{"suspend", ex_stop, E_NOGLOBAL|E_NORC,
|
||
|
|
"!",
|
||
|
|
"su[spend][!]",
|
||
|
|
"suspend the edit session"},
|
||
|
|
/* C_T */
|
||
|
|
{"t", ex_copy, E_ADDR2|E_AUTOPRINT|E_NORC,
|
||
|
|
"l1",
|
||
|
|
"[line [,line]] t line [flags]",
|
||
|
|
"copy lines elsewhere in the file"},
|
||
|
|
/* C_TAG */
|
||
|
|
{"tag", ex_tagpush, E_NOGLOBAL,
|
||
|
|
"!w1o",
|
||
|
|
"ta[g][!] [string]",
|
||
|
|
"edit the file containing the tag"},
|
||
|
|
/* C_TAGPOP */
|
||
|
|
{"tagpop", ex_tagpop, E_NOGLOBAL|E_NORC,
|
||
|
|
"!w1o",
|
||
|
|
"tagp[op][!] [number | file]",
|
||
|
|
"return to a previous tag"},
|
||
|
|
/* C_TAGTOP */
|
||
|
|
{"tagtop", ex_tagtop, E_NOGLOBAL|E_NORC,
|
||
|
|
"!",
|
||
|
|
"tagt[op][!]",
|
||
|
|
"return to the first tag"},
|
||
|
|
/* C_UNDO */
|
||
|
|
{"undo", ex_undo, E_AUTOPRINT|E_NOGLOBAL|E_NORC,
|
||
|
|
"",
|
||
|
|
"u[ndo]",
|
||
|
|
"undo the most recent change"},
|
||
|
|
/* C_UNABBREVIATE */
|
||
|
|
{"unabbreviate",ex_unabbr, E_NOGLOBAL,
|
||
|
|
"w1r",
|
||
|
|
"una[bbrev] word",
|
||
|
|
"delete an abbreviation"},
|
||
|
|
/* C_UNMAP */
|
||
|
|
{"unmap", ex_unmap, E_NOGLOBAL,
|
||
|
|
"!w1r",
|
||
|
|
"unm[ap][!] word",
|
||
|
|
"delete an input or command map"},
|
||
|
|
/* C_VGLOBAL */
|
||
|
|
{"vglobal", ex_vglobal, E_ADDR2_ALL|E_NOGLOBAL|E_NORC,
|
||
|
|
"s",
|
||
|
|
"[line [,line]] v[global] [;/]RE[;/] [commands]",
|
||
|
|
"execute a global command on lines NOT matching an RE"},
|
||
|
|
/* C_VERSION */
|
||
|
|
{"version", ex_version, E_NOGLOBAL|E_NORC,
|
||
|
|
"",
|
||
|
|
"version",
|
||
|
|
"display the program version information"},
|
||
|
|
/* C_VISUAL_EX */
|
||
|
|
{"visual", ex_visual, E_ADDR1|E_NOGLOBAL|E_NORC|E_ZERODEF,
|
||
|
|
"2c11",
|
||
|
|
"[line] vi[sual] [-|.|+|^] [window_size] [flags]",
|
||
|
|
"enter visual (vi) mode from ex mode"},
|
||
|
|
/* C_VISUAL_VI */
|
||
|
|
{"visual", ex_edit, E_NOGLOBAL|E_NORC,
|
||
|
|
"f1o",
|
||
|
|
"vi[sual][!] [+cmd] [file]",
|
||
|
|
"edit another file (from vi mode only)"},
|
||
|
|
/* C_VIUSAGE */
|
||
|
|
{"viusage", ex_viusage, E_NOGLOBAL|E_NORC,
|
||
|
|
"w1o",
|
||
|
|
"[viu]sage [key]",
|
||
|
|
"display vi key usage statement"},
|
||
|
|
/* C_WRITE */
|
||
|
|
{"write", ex_write, E_ADDR2_ALL|E_NOGLOBAL|E_NORC|E_ZERODEF,
|
||
|
|
"!s",
|
||
|
|
"[line [,line]] w[rite][!] [!cmd | [>>] [file]]",
|
||
|
|
"write the file"},
|
||
|
|
/* C_WN */
|
||
|
|
{"wn", ex_wn, E_ADDR2_ALL|E_NOGLOBAL|E_NORC|E_ZERODEF,
|
||
|
|
"!s",
|
||
|
|
"[line [,line]] wn[!] [>>] [file]",
|
||
|
|
"write the file and switch to the next file"},
|
||
|
|
/* C_WQ */
|
||
|
|
{"wq", ex_wq, E_ADDR2_ALL|E_NOGLOBAL|E_NORC|E_ZERODEF,
|
||
|
|
"!s",
|
||
|
|
"[line [,line]] wq[!] [>>] [file]",
|
||
|
|
"write the file and exit"},
|
||
|
|
/* C_XIT */
|
||
|
|
{"xit", ex_xit, E_ADDR2_ALL|E_NOGLOBAL|E_NORC|E_ZERODEF,
|
||
|
|
"!f1o",
|
||
|
|
"[line [,line]] x[it][!] [file]",
|
||
|
|
"exit"},
|
||
|
|
/* C_YANK */
|
||
|
|
{"yank", ex_yank, E_ADDR2|E_NORC,
|
||
|
|
"bca",
|
||
|
|
"[line [,line]] ya[nk] [buffer] [count]",
|
||
|
|
"copy lines to a cut buffer"},
|
||
|
|
/* C_Z */
|
||
|
|
{"z", ex_z, E_ADDR1|E_NOGLOBAL|E_NORC,
|
||
|
|
"3c01",
|
||
|
|
"[line] z [-|.|+|^|=] [count] [flags]",
|
||
|
|
"display different screens of the file"},
|
||
|
|
/* C_SUBTILDE */
|
||
|
|
{"~", ex_subtilde, E_ADDR2|E_NORC,
|
||
|
|
"s",
|
||
|
|
"[line [,line]] ~ [cgr] [count] [#lp]",
|
||
|
|
"replace previous RE with previous replacement string,"},
|
||
|
|
{NULL},
|
||
|
|
};
|