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Annotation of embedaddon/tmux/cmd-list.c, revision 1.1

1.1     ! misho       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: }