cmd-show-prompt-history.c

   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, NULL },
  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, NULL },
  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 }