f0957ccae4
This is the gsoc-2011 project to clean up and backport multibyte support from other nvi forks in a form we can use. USE_WIDECHAR is on unless building for the rescue crunchgen. This should allow editing in the native locale encoding. USE_ICONV depends on make.conf having 'WITH_ICONV=YES' for now. This adds the ability to do things like edit a KOI8-R file while having $LANG set to (say) en_US.UTF-8. iconv is used to transcode the characters for display. Other points: * It uses gencat and catopen/etc instead of homegrown msg catalog stuff. * A lot of stuff has been trimmed out, eg: the perl and tcl bindings which we could never use in base anyway. * It uses ncursesw when in widechar mode. This could be interesting. GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1 Repo at: https://github.com/lichray/nvi2 Obtained from: Zhihao Yuan <lichray@gmail.com>
446 lines
12 KiB
C
446 lines
12 KiB
C
/*-
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* Copyright (c) 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "$Id: ex_cmd.c,v 10.26 2011/07/14 15:11:16 zy Exp $";
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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 <stdio.h>
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#include "../common/common.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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{L("\004"), ex_pr, E_ADDR2,
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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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{L("!"), ex_bang, E_ADDR2_NONE|E_SECURE,
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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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{L("#"), ex_number, E_ADDR2|E_CLRFLAG,
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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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{L("&"), ex_subagain, E_ADDR2|E_ADDR_ZERO,
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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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{L("*"), 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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{L("<"), ex_shiftl, E_ADDR2|E_AUTOPRINT,
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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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{L("="), ex_equal, E_ADDR1|E_ADDR_ZERO|E_ADDR_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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{L(">"), ex_shiftr, E_ADDR2|E_AUTOPRINT,
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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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{L("@"), ex_at, E_ADDR2,
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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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{L("append"), ex_append, E_ADDR1|E_ADDR_ZERO|E_ADDR_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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{L("abbreviate"), ex_abbr, 0,
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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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{L("args"), ex_args, 0,
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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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{L("bg"), ex_bg, E_VIONLY,
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"",
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"bg",
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"put a foreground screen into the background"},
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/* C_CHANGE */
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{L("change"), ex_change, E_ADDR2|E_ADDR_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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{L("cd"), ex_cd, 0,
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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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{L("chdir"), ex_cd, 0,
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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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{L("copy"), ex_copy, E_ADDR2|E_AUTOPRINT,
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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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/* C_CSCOPE */
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{L("cscope"), ex_cscope, 0,
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"!s",
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"cs[cope] command [args]",
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"create a set of tags using a cscope command"},
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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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{L("delete"), ex_delete, E_ADDR2|E_AUTOPRINT,
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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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{L("display"), ex_display, 0,
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"w1r",
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"display b[uffers] | c[onnections] | s[creens] | t[ags]",
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"display buffers, connections, screens or tags"},
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/* C_EDIT */
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{L("edit"), ex_edit, E_NEWSCREEN,
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"f1o",
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"[Ee][dit][!] [+cmd] [file]",
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"begin editing another file"},
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/* C_EX */
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{L("ex"), ex_edit, E_NEWSCREEN,
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"f1o",
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"[Ee]x[!] [+cmd] [file]",
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"begin editing another file"},
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/* C_EXUSAGE */
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{L("exusage"), ex_usage, 0,
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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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{L("file"), ex_file, 0,
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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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{L("fg"), ex_fg, E_NEWSCREEN|E_VIONLY,
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"f1o",
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"[Ff]g [file]",
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"bring a backgrounded screen into the foreground"},
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/* C_GLOBAL */
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{L("global"), ex_global, E_ADDR2_ALL,
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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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{L("help"), ex_help, 0,
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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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{L("insert"), ex_insert, E_ADDR1|E_ADDR_ZERO|E_ADDR_ZERODEF,
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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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{L("join"), ex_join, E_ADDR2|E_AUTOPRINT,
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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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{L("k"), ex_mark, E_ADDR1,
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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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{L("list"), ex_list, E_ADDR2|E_CLRFLAG,
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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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{L("move"), ex_move, E_ADDR2|E_AUTOPRINT,
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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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{L("mark"), ex_mark, E_ADDR1,
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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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{L("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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{L("mkexrc"), ex_mkexrc, 0,
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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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{L("next"), ex_next, E_NEWSCREEN,
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"!fN",
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"[Nn][ext][!] [+cmd] [file ...]",
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"edit (and optionally specify) the next file"},
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/* C_NUMBER */
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{L("number"), ex_number, E_ADDR2|E_CLRFLAG,
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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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{L("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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{L("print"), ex_pr, E_ADDR2|E_CLRFLAG,
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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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{L("preserve"), ex_preserve, 0,
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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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{L("previous"), ex_prev, E_NEWSCREEN,
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"!",
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"[Pp]rev[ious][!]",
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"edit the previous file in the file argument list"},
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/* C_PUT */
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{L("put"), ex_put,
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E_ADDR1|E_AUTOPRINT|E_ADDR_ZERO|E_ADDR_ZERODEF,
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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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{L("quit"), ex_quit, 0,
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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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{L("read"), ex_read, E_ADDR1|E_ADDR_ZERO|E_ADDR_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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{L("recover"), ex_recover, 0,
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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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{L("resize"), ex_resize, E_VIONLY,
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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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{L("rewind"), ex_rew, 0,
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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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/*
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* !!!
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* Adding new commands starting with 's' may break the substitute 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_SUBSTITUTE */
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{L("s"), ex_s, E_ADDR2|E_ADDR_ZERO,
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"s",
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"[line [,line]] s [[/;]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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{L("script"), ex_script, E_SECURE,
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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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{L("set"), ex_set, 0,
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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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{L("shell"), ex_shell, E_SECURE,
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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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{L("source"), ex_source, 0,
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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_STOP */
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{L("stop"), ex_stop, E_SECURE,
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"!",
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"st[op][!]",
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"suspend the edit session"},
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/* C_SUSPEND */
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{L("suspend"), ex_stop, E_SECURE,
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"!",
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"su[spend][!]",
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"suspend the edit session"},
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/* C_T */
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{L("t"), ex_copy, E_ADDR2|E_AUTOPRINT,
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"l1",
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"[line [,line]] t line [flags]",
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"copy lines elsewhere in the file"},
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/* C_TAG */
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{L("tag"), ex_tag_push, E_NEWSCREEN,
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"!w1o",
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"[Tt]a[g][!] [string]",
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"edit the file containing the tag"},
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/* C_TAGNEXT */
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{L("tagnext"), ex_tag_next, 0,
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"!",
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"tagn[ext][!]",
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"move to the next tag"},
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/* C_TAGPOP */
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{L("tagpop"), ex_tag_pop, 0,
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"!w1o",
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"tagp[op][!] [number | file]",
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"return to the previous group of tags"},
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/* C_TAGPREV */
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{L("tagprev"), ex_tag_prev, 0,
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"!",
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"tagpr[ev][!]",
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"move to the previous tag"},
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/* C_TAGTOP */
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{L("tagtop"), ex_tag_top, 0,
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"!",
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"tagt[op][!]",
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"discard all tags"},
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/* C_UNDO */
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{L("undo"), ex_undo, E_AUTOPRINT,
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"",
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"u[ndo]",
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"undo the most recent change"},
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/* C_UNABBREVIATE */
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{L("unabbreviate"),ex_unabbr, 0,
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"w1r",
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"una[bbrev] word",
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"delete an abbreviation"},
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/* C_UNMAP */
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{L("unmap"), ex_unmap, 0,
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"!w1r",
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"unm[ap][!] word",
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"delete an input or command map"},
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/* C_V */
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{L("v"), ex_v, E_ADDR2_ALL,
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"s",
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"[line [,line]] v [;/]RE[;/] [commands]",
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"execute a global command on lines NOT matching an RE"},
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/* C_VERSION */
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{L("version"), ex_version, 0,
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"",
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"version",
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"display the program version information"},
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/* C_VISUAL_EX */
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{L("visual"), ex_visual, E_ADDR1|E_ADDR_ZERODEF,
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"2c11",
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"[line] vi[sual] [-|.|+|^] [window_size] [flags]",
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"enter visual (vi) mode from ex mode"},
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/* C_VISUAL_VI */
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{L("visual"), ex_edit, E_NEWSCREEN,
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"f1o",
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"[Vv]i[sual][!] [+cmd] [file]",
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"edit another file (from vi mode only)"},
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/* C_VIUSAGE */
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{L("viusage"), ex_viusage, 0,
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"w1o",
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"[viu]sage [key]",
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"display vi key usage statement"},
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/* C_VSPLIT */
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{L("vsplit"), ex_edit, E_VIONLY,
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"f1o",
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"vs[plit] [+cmd] [file]",
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"split the current screen vertically"},
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/* C_WRITE */
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{L("write"), ex_write, E_ADDR2_ALL|E_ADDR_ZERODEF,
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"!s",
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"[line [,line]] w[rite][!] [ !cmd | [>>] [file]]",
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"write the file"},
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/* C_WN */
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{L("wn"), ex_wn, E_ADDR2_ALL|E_ADDR_ZERODEF,
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"!s",
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"[line [,line]] wn[!] [>>] [file]",
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"write the file and switch to the next file"},
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/* C_WQ */
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{L("wq"), ex_wq, E_ADDR2_ALL|E_ADDR_ZERODEF,
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"!s",
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"[line [,line]] wq[!] [>>] [file]",
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"write the file and exit"},
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/* C_XIT */
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{L("xit"), ex_xit, E_ADDR2_ALL|E_ADDR_ZERODEF,
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"!f1o",
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"[line [,line]] x[it][!] [file]",
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"exit"},
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/* C_YANK */
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{L("yank"), ex_yank, E_ADDR2,
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"bca",
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"[line [,line]] ya[nk] [buffer] [count]",
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"copy lines to a cut buffer"},
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/* C_Z */
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{L("z"), ex_z, E_ADDR1,
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"3c01",
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"[line] z [-|.|+|^|=] [count] [flags]",
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"display different screens of the file"},
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/* C_SUBTILDE */
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{L("~"), ex_subtilde, E_ADDR2|E_ADDR_ZERO,
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"s",
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"[line [,line]] ~ [cgr] [count] [#lp]",
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"replace previous RE with previous replacement string,"},
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{NULL},
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};
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