1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2008 Nicholas Marriott <[email protected]>
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 <ctype.h>
22#include <stdlib.h>
23#include <string.h>
24#include <time.h>
25
26#include "tmux.h"
27
28/*
29 * Prompt for command in client.
30 */
31
32static enum cmd_retval cmd_command_prompt_exec(struct cmd *,
33 struct cmdq_item *);
34
35static int cmd_command_prompt_callback(struct client *, void *,
36 const char *, int);
37static void cmd_command_prompt_free(void *);
38
39const struct cmd_entry cmd_command_prompt_entry = {
40 .name = "command-prompt",
41 .alias = NULL,
42
43 .args = { "1kiI:Np:t:", 0, 1 },
44 .usage = "[-1kiN] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
45 "[template]",
46
47 .flags = 0,
48 .exec = cmd_command_prompt_exec
49};
50
51struct cmd_command_prompt_cdata {
52 int flags;
53
54 char *inputs;
55 char *next_input;
56
57 char *prompts;
58 char *next_prompt;
59
60 char *template;
61 int idx;
62};
63
64static enum cmd_retval
65cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
66{
67 struct args *args = self->args;
68 const char *inputs, *prompts;
69 struct cmd_command_prompt_cdata *cdata;
70 struct client *c;
71 char *prompt, *ptr, *input = NULL;
72 size_t n;
73
74 if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
75 return (CMD_RETURN_ERROR);
76
77 if (c->prompt_string != NULL)
78 return (CMD_RETURN_NORMAL);
79
80 cdata = xcalloc(1, sizeof *cdata);
81
82 cdata->inputs = NULL;
83 cdata->next_input = NULL;
84
85 cdata->prompts = NULL;
86 cdata->next_prompt = NULL;
87
88 cdata->template = NULL;
89 cdata->idx = 1;
90
91 if (args->argc != 0)
92 cdata->template = xstrdup(args->argv[0]);
93 else
94 cdata->template = xstrdup("%1");
95
96 if ((prompts = args_get(args, 'p')) != NULL)
97 cdata->prompts = xstrdup(prompts);
98 else if (args->argc != 0) {
99 n = strcspn(cdata->template, " ,");
100 xasprintf(&cdata->prompts, "(%.*s) ", (int) n, cdata->template);
101 } else
102 cdata->prompts = xstrdup(":");
103
104 /* Get first prompt. */
105 cdata->next_prompt = cdata->prompts;
106 ptr = strsep(&cdata->next_prompt, ",");
107 if (prompts == NULL)
108 prompt = xstrdup(ptr);
109 else
110 xasprintf(&prompt, "%s ", ptr);
111
112 /* Get initial prompt input. */
113 if ((inputs = args_get(args, 'I')) != NULL) {
114 cdata->inputs = xstrdup(inputs);
115 cdata->next_input = cdata->inputs;
116 input = strsep(&cdata->next_input, ",");
117 }
118
119 if (args_has(args, '1'))
120 cdata->flags |= PROMPT_SINGLE;
121 else if (args_has(args, 'N'))
122 cdata->flags |= PROMPT_NUMERIC;
123 else if (args_has(args, 'i'))
124 cdata->flags |= PROMPT_INCREMENTAL;
125 else if (args_has(args, 'k'))
126 cdata->flags |= PROMPT_KEY;
127 status_prompt_set(c, prompt, input, cmd_command_prompt_callback,
128 cmd_command_prompt_free, cdata, cdata->flags);
129 free(prompt);
130
131 return (CMD_RETURN_NORMAL);
132}
133
134static int
135cmd_command_prompt_callback(struct client *c, void *data, const char *s,
136 int done)
137{
138 struct cmd_command_prompt_cdata *cdata = data;
139 struct cmdq_item *new_item;
140 char *new_template, *prompt, *ptr;
141 char *input = NULL;
142 struct cmd_parse_result *pr;
143
144 if (s == NULL)
145 return (0);
146 if (done && (cdata->flags & PROMPT_INCREMENTAL))
147 return (0);
148
149 new_template = cmd_template_replace(cdata->template, s, cdata->idx);
150 if (done) {
151 free(cdata->template);
152 cdata->template = new_template;
153 }
154
155 /*
156 * Check if there are more prompts; if so, get its respective input
157 * and update the prompt data.
158 */
159 if (done && (ptr = strsep(&cdata->next_prompt, ",")) != NULL) {
160 xasprintf(&prompt, "%s ", ptr);
161 input = strsep(&cdata->next_input, ",");
162 status_prompt_update(c, prompt, input);
163
164 free(prompt);
165 cdata->idx++;
166 return (1);
167 }
168
169 pr = cmd_parse_from_string(new_template, NULL);
170 switch (pr->status) {
171 case CMD_PARSE_EMPTY:
172 new_item = NULL;
173 break;
174 case CMD_PARSE_ERROR:
175 new_item = cmdq_get_error(pr->error);
176 free(pr->error);
177 cmdq_append(c, new_item);
178 break;
179 case CMD_PARSE_SUCCESS:
180 new_item = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
181 cmd_list_free(pr->cmdlist);
182 cmdq_append(c, new_item);
183 break;
184 }
185
186 if (!done)
187 free(new_template);
188 if (c->prompt_inputcb != cmd_command_prompt_callback)
189 return (1);
190 return (0);
191}
192
193static void
194cmd_command_prompt_free(void *data)
195{
196 struct cmd_command_prompt_cdata *cdata = data;
197
198 free(cdata->inputs);
199 free(cdata->prompts);
200 free(cdata->template);
201 free(cdata);
202}
203