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      1 /* $OpenBSD$ */
      2 
      3 /*
      4  * Copyright (c) 2021 Anindya Mukherjee <anindya49 (at) 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 prompt-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 prompt-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 }
    109