1: /* $OpenBSD$ */
2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.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 <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:
32: static enum cmd_retval cmd_command_prompt_exec(struct cmd *,
33: struct cmdq_item *);
34:
35: static int cmd_command_prompt_callback(void *, const char *, int);
36: static void cmd_command_prompt_free(void *);
37:
38: const struct cmd_entry cmd_command_prompt_entry = {
39: .name = "command-prompt",
40: .alias = NULL,
41:
42: .args = { "1iI:Np:t:", 0, 1 },
43: .usage = "[-1Ni] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
44: "[template]",
45:
46: .tflag = CMD_CLIENT,
47:
48: .flags = 0,
49: .exec = cmd_command_prompt_exec
50: };
51:
52: struct cmd_command_prompt_cdata {
53: struct client *c;
54: int flags;
55:
56: char *inputs;
57: char *next_input;
58:
59: char *prompts;
60: char *next_prompt;
61:
62: char *template;
63: int idx;
64: };
65:
66: static enum cmd_retval
67: cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
68: {
69: struct args *args = self->args;
70: const char *inputs, *prompts;
71: struct cmd_command_prompt_cdata *cdata;
72: struct client *c = item->state.c;
73: char *prompt, *ptr, *input = NULL;
74: size_t n;
75:
76: if (c->prompt_string != NULL)
77: return (CMD_RETURN_NORMAL);
78:
79: cdata = xcalloc(1, sizeof *cdata);
80: cdata->c = c;
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: status_prompt_set(c, prompt, input, cmd_command_prompt_callback,
126: cmd_command_prompt_free, cdata, cdata->flags);
127: free(prompt);
128:
129: return (CMD_RETURN_NORMAL);
130: }
131:
132: static enum cmd_retval
133: cmd_command_prompt_error(struct cmdq_item *item, void *data)
134: {
135: char *error = data;
136:
137: cmdq_error(item, "%s", error);
138: free(error);
139:
140: return (CMD_RETURN_NORMAL);
141: }
142:
143: static int
144: cmd_command_prompt_callback(void *data, const char *s, int done)
145: {
146: struct cmd_command_prompt_cdata *cdata = data;
147: struct client *c = cdata->c;
148: struct cmd_list *cmdlist;
149: struct cmdq_item *new_item;
150: char *cause, *new_template, *prompt, *ptr;
151: char *input = NULL;
152:
153: if (s == NULL)
154: return (0);
155: if (done && (cdata->flags & PROMPT_INCREMENTAL))
156: return (0);
157:
158: new_template = cmd_template_replace(cdata->template, s, cdata->idx);
159: if (done) {
160: free(cdata->template);
161: cdata->template = new_template;
162: }
163:
164: /*
165: * Check if there are more prompts; if so, get its respective input
166: * and update the prompt data.
167: */
168: if (done && (ptr = strsep(&cdata->next_prompt, ",")) != NULL) {
169: xasprintf(&prompt, "%s ", ptr);
170: input = strsep(&cdata->next_input, ",");
171: status_prompt_update(c, prompt, input);
172:
173: free(prompt);
174: cdata->idx++;
175: return (1);
176: }
177:
178: cmdlist = cmd_string_parse(new_template, NULL, 0, &cause);
179: if (cmdlist == NULL) {
180: if (cause != NULL) {
181: new_item = cmdq_get_callback(cmd_command_prompt_error,
182: cause);
183: } else
184: new_item = NULL;
185: } else {
186: new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
187: cmd_list_free(cmdlist);
188: }
189:
190: if (new_item != NULL)
191: cmdq_append(c, new_item);
192:
193: if (!done)
194: free(new_template);
195: if (c->prompt_callbackfn != (void *)&cmd_command_prompt_callback)
196: return (1);
197: return (0);
198: }
199:
200: static void
201: cmd_command_prompt_free(void *data)
202: {
203: struct cmd_command_prompt_cdata *cdata = data;
204:
205: free(cdata->inputs);
206: free(cdata->prompts);
207: free(cdata->template);
208: free(cdata);
209: }
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