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Diffstat (limited to 'usr.bin/vi/ex/excmd.c')
| -rw-r--r-- | usr.bin/vi/ex/excmd.c | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/usr.bin/vi/ex/excmd.c b/usr.bin/vi/ex/excmd.c new file mode 100644 index 0000000..3845768 --- /dev/null +++ b/usr.bin/vi/ex/excmd.c @@ -0,0 +1,458 @@ +/*- + * Copyright (c) 1992, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char sccsid[] = "@(#)excmd.c 8.58 (Berkeley) 8/9/94"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/queue.h> +#include <sys/time.h> + +#include <bitstring.h> +#include <limits.h> +#include <signal.h> +#include <stdio.h> +#include <termios.h> + +#include "compat.h" +#include <db.h> +#include <regex.h> + +#include "vi.h" +#include "excmd.h" + +/* + * This array maps ex command names to command functions. + * + * The order in which command names are listed below is important -- + * ambiguous abbreviations are resolved to be the first possible match, + * e.g. "r" means "read", not "rewind", because "read" is listed before + * "rewind". + * + * The syntax of the ex commands is unbelievably irregular, and a special + * case from beginning to end. Each command has an associated "syntax + * script" which describes the "arguments" that are possible. The script + * syntax is as follows: + * + * ! -- ! flag + * 1 -- flags: [+-]*[pl#][+-]* + * 2 -- flags: [-.+^] + * 3 -- flags: [-.+^=] + * b -- buffer + * c[01+a] -- count (0-N, 1-N, signed 1-N, address offset) + * f[N#][or] -- file (a number or N, optional or required) + * l -- line + * S -- string with file name expansion + * s -- string + * W -- word string + * w[N#][or] -- word (a number or N, optional or required) + */ +EXCMDLIST const cmds[] = { +/* C_SCROLL */ + {"\004", ex_pr, E_ADDR2|E_NORC, + "", + "^D", + "scroll lines"}, +/* C_BANG */ + {"!", ex_bang, E_ADDR2_NONE|E_NORC, + "S", + "[line [,line]] ! command", + "filter lines through commands or run commands"}, +/* C_HASH */ + {"#", ex_number, E_ADDR2|E_F_PRCLEAR|E_NORC, + "ca1", + "[line [,line]] # [count] [l]", + "display numbered lines"}, +/* C_SUBAGAIN */ + {"&", ex_subagain, E_ADDR2|E_NORC, + "s", + "[line [,line]] & [cgr] [count] [#lp]", + "repeat the last subsitution"}, +/* C_STAR */ + {"*", ex_at, 0, + "b", + "* [buffer]", + "execute a buffer"}, +/* C_SHIFTL */ + {"<", ex_shiftl, E_ADDR2|E_AUTOPRINT|E_NORC, + "ca1", + "[line [,line]] <[<...] [count] [flags]", + "shift lines left"}, +/* C_EQUAL */ + {"=", ex_equal, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF, + "1", + "[line] = [flags]", + "display line number"}, +/* C_SHIFTR */ + {">", ex_shiftr, E_ADDR2|E_AUTOPRINT|E_NORC, + "ca1", + "[line [,line]] >[>...] [count] [flags]", + "shift lines right"}, +/* C_AT */ + {"@", ex_at, 0, + "b", + "@ [buffer]", + "execute a buffer"}, +/* C_APPEND */ + {"append", ex_append, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF, + "!", + "[line] a[ppend][!]", + "append input to a line"}, +/* C_ABBR */ + {"abbreviate", ex_abbr, E_NOGLOBAL, + "W", + "ab[brev] [word replace]", + "specify an input abbreviation"}, +/* C_ARGS */ + {"args", ex_args, E_NOGLOBAL|E_NORC, + "", + "ar[gs]", + "display file argument list"}, +/* C_BG */ + {"bg", ex_bg, E_NOGLOBAL|E_NORC, + "", + "bg", + "background the current screen"}, +/* C_CHANGE */ + {"change", ex_change, E_ADDR2|E_NORC|E_ZERODEF, + "!ca", + "[line [,line]] c[hange][!] [count]", + "change lines to input"}, +/* C_CD */ + {"cd", ex_cd, E_NOGLOBAL, + "!f1o", + "cd[!] [directory]", + "change the current directory"}, +/* C_CHDIR */ + {"chdir", ex_cd, E_NOGLOBAL, + "!f1o", + "chd[ir][!] [directory]", + "change the current directory"}, +/* C_COPY */ + {"copy", ex_copy, E_ADDR2|E_AUTOPRINT|E_NORC, + "l1", + "[line [,line]] co[py] line [flags]", + "copy lines elsewhere in the file"}, +/* + * !!! + * Adding new commands starting with 'd' may break the delete command code + * in ex_cmd() (the ex parser). Read through the comments there, first. + */ +/* C_DELETE */ + {"delete", ex_delete, E_ADDR2|E_AUTOPRINT|E_NORC, + "bca1", + "[line [,line]] d[elete][flags] [buffer] [count] [flags]", + "delete lines from the file"}, +/* C_DISPLAY */ + {"display", ex_display, E_NOGLOBAL|E_NORC, + "w1r", + "display b[uffers] | s[creens] | t[ags]", + "display buffers, screens or tags"}, +/* C_DIGRAPH */ + {"digraph", ex_digraph, E_NOGLOBAL|E_NOPERM|E_NORC, + "", + "digraph", + "specify digraphs (not implemented)"}, +/* C_EDIT */ + {"edit", ex_edit, E_NOGLOBAL|E_NORC, + "f1o", + "e[dit][!] [+cmd] [file]", + "begin editing another file"}, +/* C_EX */ + {"ex", ex_edit, E_NOGLOBAL|E_NORC, + "f1o", + "ex[!] [+cmd] [file]", + "begin editing another file"}, +/* C_EXUSAGE */ + {"exusage", ex_usage, E_NOGLOBAL|E_NORC, + "w1o", + "[exu]sage [command]", + "display ex command usage statement"}, +/* C_FILE */ + {"file", ex_file, E_NOGLOBAL|E_NORC, + "f1o", + "f[ile] [name]", + "display (and optionally set) file name"}, +/* C_FG */ + {"fg", ex_fg, E_NOGLOBAL|E_NORC, + "f1o", + "fg [file]", + "switch the current screen and a backgrounded screen"}, +/* C_GLOBAL */ + {"global", ex_global, E_ADDR2_ALL|E_NOGLOBAL|E_NORC, + "!s", + "[line [,line]] g[lobal][!] [;/]RE[;/] [commands]", + "execute a global command on lines matching an RE"}, +/* C_HELP */ + {"help", ex_help, E_NOGLOBAL|E_NORC, + "", + "he[lp]", + "display help statement"}, +/* C_INSERT */ + {"insert", ex_insert, E_ADDR1|E_NORC, + "!", + "[line] i[nsert][!]", + "insert input before a line"}, +/* C_JOIN */ + {"join", ex_join, E_ADDR2|E_AUTOPRINT|E_NORC, + "!ca1", + "[line [,line]] j[oin][!] [count] [flags]", + "join lines into a single line"}, +/* C_K */ + {"k", ex_mark, E_ADDR1|E_NORC, + "w1r", + "[line] k key", + "mark a line position"}, +/* C_LIST */ + {"list", ex_list, E_ADDR2|E_F_PRCLEAR|E_NORC, + "ca1", + "[line [,line]] l[ist] [count] [#]", + "display lines in an unambiguous form"}, +/* C_MOVE */ + {"move", ex_move, E_ADDR2|E_AUTOPRINT|E_NORC, + "l", + "[line [,line]] m[ove] line", + "move lines elsewhere in the file"}, +/* C_MARK */ + {"mark", ex_mark, E_ADDR1|E_NORC, + "w1r", + "[line] ma[rk] key", + "mark a line position"}, +/* C_MAP */ + {"map", ex_map, 0, + "!W", + "map[!] [keys replace]", + "map input or commands to one or more keys"}, +/* C_MKEXRC */ + {"mkexrc", ex_mkexrc, E_NOGLOBAL|E_NORC, + "!f1r", + "mkexrc[!] file", + "write a .exrc file"}, +/* C_NEXT */ + {"next", ex_next, E_NOGLOBAL|E_NORC, + "!fN", + "n[ext][!] [+cmd] [file ...]", + "edit (and optionally specify) the next file"}, +/* C_NUMBER */ + {"number", ex_number, E_ADDR2|E_F_PRCLEAR|E_NORC, + "ca1", + "[line [,line]] nu[mber] [count] [l]", + "change display to number lines"}, +/* C_OPEN */ + {"open", ex_open, E_ADDR1, + "s", + "[line] o[pen] [/RE/] [flags]", + "enter \"open\" mode (not implemented)"}, +/* C_PRINT */ + {"print", ex_pr, E_ADDR2|E_F_PRCLEAR|E_NORC, + "ca1", + "[line [,line]] p[rint] [count] [#l]", + "display lines"}, +/* C_PRESERVE */ + {"preserve", ex_preserve, E_NOGLOBAL|E_NORC, + "", + "pre[serve]", + "preserve an edit session for recovery"}, +/* C_PREVIOUS */ + {"previous", ex_prev, E_NOGLOBAL|E_NORC, + "!", + "prev[ious][!]", + "edit the previous file in the file argument list"}, +/* C_PUT */ + {"put", ex_put, E_ADDR1|E_AUTOPRINT|E_NORC|E_ZERO, + "b", + "[line] pu[t] [buffer]", + "append a cut buffer to the line"}, +/* C_QUIT */ + {"quit", ex_quit, E_NOGLOBAL|E_NORC, + "!", + "q[uit][!]", + "exit ex/vi"}, +/* C_READ */ + {"read", ex_read, E_ADDR1|E_NORC|E_ZERO|E_ZERODEF, + "s", + "[line] r[ead] [!cmd | [file]]", + "append input from a command or file to the line"}, +/* C_RECOVER */ + {"recover", ex_recover, E_NOGLOBAL|E_NORC, + "!f1r", + "recover[!] file", + "recover a saved file"}, +/* C_RESIZE */ + {"resize", ex_resize, E_NOGLOBAL|E_NORC, + "c+", + "resize [+-]rows", + "grow or shrink the current screen"}, +/* C_REWIND */ + {"rewind", ex_rew, E_NOGLOBAL|E_NORC, + "!", + "rew[ind][!]", + "re-edit all the files in the file argument list"}, +/* C_SUBSTITUTE */ + {"substitute", ex_substitute, E_ADDR2|E_NORC, + "s", +"[line [,line]] s[ubstitute] [[/;]RE[/;]/repl[/;] [cgr] [count] [#lp]]", + "substitute on lines matching an RE"}, +/* C_SCRIPT */ + {"script", ex_script, E_NOGLOBAL|E_NORC, + "!f1o", + "sc[ript][!] [file]", + "run a shell in a screen"}, +/* C_SET */ + {"set", ex_set, E_NOGLOBAL, + "wN", + "se[t] [option[=[value]]...] [nooption ...] [option? ...] [all]", + "set options (use \":set all\" to see all options)"}, +/* C_SHELL */ + {"shell", ex_shell, E_NOGLOBAL|E_NORC, + "", + "sh[ell]", + "suspend editing and run a shell"}, +/* C_SOURCE */ + {"source", ex_source, E_NOGLOBAL, + "f1r", + "so[urce] file", + "read a file of ex commands"}, +/* C_SPLIT */ + {"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}, +}; |
