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Annotation of src/usr.bin/tmux/cmd-show-prompt-history.c, Revision 1.1

1.1     ! nicm        1: /* $OpenBSD$ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 2021 Anindya Mukherjee <anindya49@hotmail.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 "tmux.h"
        !            20:
        !            21: #include <stdlib.h>
        !            22:
        !            23: /*
        !            24:  * Show or clear prompt history.
        !            25:  */
        !            26:
        !            27: static enum cmd_retval cmd_show_prompt_history_exec(struct cmd *,
        !            28:                            struct cmdq_item *);
        !            29:
        !            30: const struct cmd_entry cmd_show_prompt_history_entry = {
        !            31:        .name = "show-prompt-history",
        !            32:        .alias = "showphist",
        !            33:
        !            34:        .args = { "T:", 0, 0 },
        !            35:        .usage = "[-T type]",
        !            36:
        !            37:        .flags = CMD_AFTERHOOK,
        !            38:        .exec = cmd_show_prompt_history_exec
        !            39: };
        !            40:
        !            41: const struct cmd_entry cmd_clear_prompt_history_entry = {
        !            42:        .name = "clear-prompt-history",
        !            43:        .alias = "clearphist",
        !            44:
        !            45:        .args = { "T:", 0, 0 },
        !            46:        .usage = "[-T type]",
        !            47:
        !            48:        .flags = CMD_AFTERHOOK,
        !            49:        .exec = cmd_show_prompt_history_exec
        !            50: };
        !            51:
        !            52: static enum cmd_retval
        !            53: cmd_show_prompt_history_exec(struct cmd *self, struct cmdq_item *item)
        !            54: {
        !            55:        struct args             *args = cmd_get_args(self);
        !            56:        const char              *typestr = args_get(args, 'T');
        !            57:        enum prompt_type         type;
        !            58:        u_int                    tidx, hidx;
        !            59:
        !            60:        if (cmd_get_entry(self) == &cmd_clear_prompt_history_entry) {
        !            61:                if (typestr == NULL) {
        !            62:                        for (tidx = 0; tidx < PROMPT_NTYPES; tidx++) {
        !            63:                                free(status_prompt_hlist[tidx]);
        !            64:                                status_prompt_hlist[tidx] = NULL;
        !            65:                                status_prompt_hsize[tidx] = 0;
        !            66:                        }
        !            67:                } else {
        !            68:                        type = status_prompt_type(typestr);
        !            69:                        if (type == PROMPT_TYPE_INVALID) {
        !            70:                                cmdq_error(item, "invalid type: %s", typestr);
        !            71:                                return (CMD_RETURN_ERROR);
        !            72:                        }
        !            73:                        free(status_prompt_hlist[type]);
        !            74:                        status_prompt_hlist[type] = NULL;
        !            75:                        status_prompt_hsize[type] = 0;
        !            76:                }
        !            77:
        !            78:                return (CMD_RETURN_NORMAL);
        !            79:        }
        !            80:
        !            81:        if (typestr == NULL) {
        !            82:                for (tidx = 0; tidx < PROMPT_NTYPES; tidx++) {
        !            83:                        cmdq_print(item, "History for %s:\n",
        !            84:                            status_prompt_type_string(tidx));
        !            85:                        for (hidx = 0; hidx < status_prompt_hsize[tidx];
        !            86:                            hidx++) {
        !            87:                                cmdq_print(item, "%d: %s", hidx + 1,
        !            88:                                    status_prompt_hlist[tidx][hidx]);
        !            89:                        }
        !            90:                        cmdq_print(item, "%s", "");
        !            91:                }
        !            92:        } else {
        !            93:                type = status_prompt_type(typestr);
        !            94:                if (type == PROMPT_TYPE_INVALID) {
        !            95:                        cmdq_error(item, "invalid type: %s", typestr);
        !            96:                        return (CMD_RETURN_ERROR);
        !            97:                }
        !            98:                cmdq_print(item, "History for %s:\n",
        !            99:                    status_prompt_type_string(type));
        !           100:                for (hidx = 0; hidx < status_prompt_hsize[type]; hidx++) {
        !           101:                        cmdq_print(item, "%d: %s", hidx + 1,
        !           102:                            status_prompt_hlist[type][hidx]);
        !           103:                }
        !           104:                cmdq_print(item, "%s", "");
        !           105:        }
        !           106:
        !           107:        return (CMD_RETURN_NORMAL);
        !           108: }