mirror of https://github.com/tmux/tmux.git
139 lines
3.1 KiB
C
139 lines
3.1 KiB
C
/* $Id: cmd-list.c,v 1.7 2010-02-02 23:51:04 tcunha Exp $ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include "tmux.h"
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struct cmd_list *
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cmd_list_parse(int argc, char **argv, char **cause)
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{
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struct cmd_list *cmdlist;
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struct cmd *cmd;
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int i, lastsplit;
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size_t arglen, new_argc;
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char **new_argv;
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cmdlist = xmalloc(sizeof *cmdlist);
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TAILQ_INIT(cmdlist);
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lastsplit = 0;
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for (i = 0; i < argc; i++) {
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arglen = strlen(argv[i]);
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if (arglen == 0 || argv[i][arglen - 1] != ';')
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continue;
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argv[i][arglen - 1] = '\0';
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if (arglen > 1 && argv[i][arglen - 2] == '\\') {
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argv[i][arglen - 2] = ';';
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continue;
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}
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new_argc = i - lastsplit;
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new_argv = argv + lastsplit;
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if (arglen != 1)
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new_argc++;
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cmd = cmd_parse(new_argc, new_argv, cause);
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if (cmd == NULL)
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goto bad;
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TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
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lastsplit = i + 1;
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}
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if (lastsplit != argc) {
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cmd = cmd_parse(argc - lastsplit, argv + lastsplit, cause);
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if (cmd == NULL)
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goto bad;
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TAILQ_INSERT_TAIL(cmdlist, cmd, qentry);
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}
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return (cmdlist);
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bad:
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cmd_list_free(cmdlist);
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return (NULL);
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}
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int
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cmd_list_exec(struct cmd_list *cmdlist, struct cmd_ctx *ctx)
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{
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struct cmd *cmd;
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int n, retval;
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retval = 0;
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TAILQ_FOREACH(cmd, cmdlist, qentry) {
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if ((n = cmd_exec(cmd, ctx)) == -1)
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return (-1);
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/*
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* A 1 return value means the command client is being attached
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* (sent MSG_READY).
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*/
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if (n == 1) {
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retval = 1;
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/*
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* The command client has been attached, so mangle the
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* context to treat any following commands as if they
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* were called from inside.
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*/
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if (ctx->curclient == NULL) {
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ctx->curclient = ctx->cmdclient;
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ctx->cmdclient = NULL;
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}
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}
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}
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return (retval);
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}
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void
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cmd_list_free(struct cmd_list *cmdlist)
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{
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struct cmd *cmd;
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while (!TAILQ_EMPTY(cmdlist)) {
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cmd = TAILQ_FIRST(cmdlist);
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TAILQ_REMOVE(cmdlist, cmd, qentry);
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cmd_free(cmd);
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}
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xfree(cmdlist);
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}
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size_t
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cmd_list_print(struct cmd_list *cmdlist, char *buf, size_t len)
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{
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struct cmd *cmd;
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size_t off;
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off = 0;
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TAILQ_FOREACH(cmd, cmdlist, qentry) {
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if (off >= len)
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break;
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off += cmd_print(cmd, buf + off, len - off);
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if (off >= len)
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break;
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if (TAILQ_NEXT(cmd, qentry) != NULL)
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off += xsnprintf(buf + off, len - off, " ; ");
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}
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return (off);
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}
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