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tmux 2.4

    1: /* $OpenBSD$ */
    2: 
    3: /*
    4:  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
    5:  *
    6:  * Permission to use, copy, modify, and distribute this software for any
    7:  * purpose with or without fee is hereby granted, provided that the above
    8:  * copyright notice and this permission notice appear in all copies.
    9:  *
   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
   15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
   16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   17:  */
   18: 
   19: #include <sys/types.h>
   20: 
   21: #include <stdlib.h>
   22: #include <string.h>
   23: 
   24: #include "tmux.h"
   25: 
   26: struct cmd_list *
   27: cmd_list_parse(int argc, char **argv, const char *file, u_int line,
   28:     char **cause)
   29: {
   30: 	struct cmd_list	*cmdlist;
   31: 	struct cmd	*cmd;
   32: 	int		 i, lastsplit;
   33: 	size_t		 arglen, new_argc;
   34: 	char	       **copy_argv, **new_argv;
   35: 
   36: 	copy_argv = cmd_copy_argv(argc, argv);
   37: 
   38: 	cmdlist = xcalloc(1, sizeof *cmdlist);
   39: 	cmdlist->references = 1;
   40: 	TAILQ_INIT(&cmdlist->list);
   41: 
   42: 	lastsplit = 0;
   43: 	for (i = 0; i < argc; i++) {
   44: 		arglen = strlen(copy_argv[i]);
   45: 		if (arglen == 0 || copy_argv[i][arglen - 1] != ';')
   46: 			continue;
   47: 		copy_argv[i][arglen - 1] = '\0';
   48: 
   49: 		if (arglen > 1 && copy_argv[i][arglen - 2] == '\\') {
   50: 			copy_argv[i][arglen - 2] = ';';
   51: 			continue;
   52: 		}
   53: 
   54: 		new_argc = i - lastsplit;
   55: 		new_argv = copy_argv + lastsplit;
   56: 		if (arglen != 1)
   57: 			new_argc++;
   58: 
   59: 		cmd = cmd_parse(new_argc, new_argv, file, line, cause);
   60: 		if (cmd == NULL)
   61: 			goto bad;
   62: 		TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
   63: 
   64: 		lastsplit = i + 1;
   65: 	}
   66: 
   67: 	if (lastsplit != argc) {
   68: 		cmd = cmd_parse(argc - lastsplit, copy_argv + lastsplit,
   69: 		    file, line, cause);
   70: 		if (cmd == NULL)
   71: 			goto bad;
   72: 		TAILQ_INSERT_TAIL(&cmdlist->list, cmd, qentry);
   73: 	}
   74: 
   75: 	cmd_free_argv(argc, copy_argv);
   76: 	return (cmdlist);
   77: 
   78: bad:
   79: 	cmd_list_free(cmdlist);
   80: 	cmd_free_argv(argc, copy_argv);
   81: 	return (NULL);
   82: }
   83: 
   84: void
   85: cmd_list_free(struct cmd_list *cmdlist)
   86: {
   87: 	struct cmd	*cmd, *cmd1;
   88: 
   89: 	if (--cmdlist->references != 0)
   90: 		return;
   91: 
   92: 	TAILQ_FOREACH_SAFE(cmd, &cmdlist->list, qentry, cmd1) {
   93: 		TAILQ_REMOVE(&cmdlist->list, cmd, qentry);
   94: 		args_free(cmd->args);
   95: 		free(cmd->file);
   96: 		free(cmd);
   97: 	}
   98: 
   99: 	free(cmdlist);
  100: }
  101: 
  102: char *
  103: cmd_list_print(struct cmd_list *cmdlist)
  104: {
  105: 	struct cmd	*cmd;
  106: 	char		*buf, *this;
  107: 	size_t		 len;
  108: 
  109: 	len = 1;
  110: 	buf = xcalloc(1, len);
  111: 
  112: 	TAILQ_FOREACH(cmd, &cmdlist->list, qentry) {
  113: 		this = cmd_print(cmd);
  114: 
  115: 		len += strlen(this) + 3;
  116: 		buf = xrealloc(buf, len);
  117: 
  118: 		strlcat(buf, this, len);
  119: 		if (TAILQ_NEXT(cmd, qentry) != NULL)
  120: 			strlcat(buf, " ; ", len);
  121: 
  122: 		free(this);
  123: 	}
  124: 
  125: 	return (buf);
  126: }