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/* $OpenBSD: cmd-list.c,v 1.11 2013/03/22 15:49:55 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
struct cmd_list *
cmd_list_parse(int argc, char **argv, char **cause)
{
struct cmd_list *cmdlist;
struct cmd *cmd;
int i, lastsplit;
size_t arglen, new_argc;
char **copy_argv, **new_argv;
copy_argv = cmd_copy_argv(argc, argv);
cmdlist = xmalloc(sizeof *cmdlist);
cmdlist->references = 1;
TAILQ_INIT(&cmdlist->list);
lastsplit = 0;
for (i = 0; i < argc; i++) {
arglen = strlen(copy_argv[i]);
if (arglen == 0 || copy_argv[i][arglen - 1] != ';')
continue;
copy_argv[i][arglen - 1] = '\0';
if (arglen > 1 && copy_argv[i][arglen - 2] == '\\') {
copy_argv[i][arglen - 2] = ';';
continue;
}
new_argc = i - lastsplit;
new_argv = copy_argv + lastsplit;
if (arglen != 1)
new_argc++;
cmd = cmd_parse(new_argc, new_argv, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
lastsplit = i + 1;
}
if (lastsplit != argc) {
cmd = cmd_parse(argc - lastsplit, copy_argv + lastsplit, cause);
if (cmd == NULL)
goto bad;
TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
}
cmd_free_argv(argc, copy_argv);
return (cmdlist);
bad:
cmd_list_free(cmdlist);
cmd_free_argv(argc, copy_argv);
return (NULL);
}
enum cmd_retval
cmd_list_exec(struct cmd_list *cmdlist, struct cmd_ctx *ctx)
{
struct client *c = ctx->curclient;
struct cmd *cmd;
enum cmd_retval retval;
int guards, n;
guards = 0;
if (c != NULL && c->session != NULL)
guards = c->flags & CLIENT_CONTROL;
notify_disable();
retval = 0;
TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
if (guards)
ctx->print(ctx, "%%begin");
n = cmd->entry->exec(cmd, ctx);
if (guards)
ctx->print(ctx, "%%end");
switch (n)
{
case CMD_RETURN_ERROR:
return (CMD_RETURN_ERROR);
case CMD_RETURN_ATTACH:
/* Client is being attached (send MSG_READY). */
retval = CMD_RETURN_ATTACH;
/*
* Mangle the context to treat any following commands
* as if they were called from inside.
*/
if (ctx->curclient == NULL) {
ctx->curclient = ctx->cmdclient;
ctx->cmdclient = NULL;
ctx->error = key_bindings_error;
ctx->print = key_bindings_print;
ctx->info = key_bindings_info;
}
break;
case CMD_RETURN_YIELD:
if (retval == CMD_RETURN_NORMAL)
retval = CMD_RETURN_YIELD;
break;
case CMD_RETURN_NORMAL:
break;
}
}
notify_enable();
return (retval);
}
void
cmd_list_free(struct cmd_list *cmdlist)
{
struct cmd *cmd;
if (--cmdlist->references != 0)
return;
while (!TAILQ_EMPTY(&cmdlist->list)) {
cmd = TAILQ_FIRST(&cmdlist->list);
TAILQ_REMOVE(&cmdlist->list, cmd, qentry);
args_free(cmd->args);
free(cmd);
}
free(cmdlist);
}
size_t
cmd_list_print(struct cmd_list *cmdlist, char *buf, size_t len)
{
struct cmd *cmd;
size_t off;
off = 0;
TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
if (off >= len)
break;
off += cmd_print(cmd, buf + off, len - off);
if (off >= len)
break;
if (TAILQ_NEXT(cmd, qentry) != NULL)
off += xsnprintf(buf + off, len - off, " ; ");
}
return (off);
}
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