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Annotation of src/usr.bin/tmux/cmd-show-prompt-history.c, Revision 1.2

1.2     ! nicm        1: /* $OpenBSD: cmd-show-prompt-history.c,v 1.1 2021/06/10 07:50:03 nicm Exp $ */
1.1       nicm        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:
1.2     ! nicm       34:        .args = { "T:", 0, 0, NULL },
1.1       nicm       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:
1.2     ! nicm       45:        .args = { "T:", 0, 0, NULL },
1.1       nicm       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: }