Annotation of src/usr.bin/tmux/cmd-command-prompt.c, Revision 1.42
1.42 ! nicm 1: /* $OpenBSD: cmd-command-prompt.c,v 1.41 2017/01/15 22:00:56 nicm Exp $ */
1.1 nicm 2:
3: /*
1.33 nicm 4: * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.20 nicm 22: #include <stdlib.h>
1.1 nicm 23: #include <string.h>
1.17 nicm 24: #include <time.h>
1.1 nicm 25:
26: #include "tmux.h"
27:
28: /*
29: * Prompt for command in client.
30: */
31:
1.38 nicm 32: static enum cmd_retval cmd_command_prompt_exec(struct cmd *,
33: struct cmdq_item *);
1.8 nicm 34:
1.39 nicm 35: static int cmd_command_prompt_callback(void *, const char *, int);
1.34 nicm 36: static void cmd_command_prompt_free(void *);
1.1 nicm 37:
38: const struct cmd_entry cmd_command_prompt_entry = {
1.31 nicm 39: .name = "command-prompt",
40: .alias = NULL,
41:
1.39 nicm 42: .args = { "1iI:Np:t:", 0, 1 },
43: .usage = "[-1Ni] [-I inputs] [-p prompts] " CMD_TARGET_CLIENT_USAGE " "
1.31 nicm 44: "[template]",
45:
1.32 nicm 46: .tflag = CMD_CLIENT,
47:
48: .flags = 0,
1.31 nicm 49: .exec = cmd_command_prompt_exec
1.8 nicm 50: };
51:
52: struct cmd_command_prompt_cdata {
1.1 nicm 53: struct client *c;
1.39 nicm 54: int flags;
55:
1.17 nicm 56: char *inputs;
57: char *next_input;
1.39 nicm 58:
59: char *prompts;
1.8 nicm 60: char *next_prompt;
1.39 nicm 61:
1.1 nicm 62: char *template;
1.8 nicm 63: int idx;
1.1 nicm 64: };
65:
1.34 nicm 66: static enum cmd_retval
1.38 nicm 67: cmd_command_prompt_exec(struct cmd *self, struct cmdq_item *item)
1.1 nicm 68: {
1.14 nicm 69: struct args *args = self->args;
1.17 nicm 70: const char *inputs, *prompts;
1.8 nicm 71: struct cmd_command_prompt_cdata *cdata;
1.38 nicm 72: struct client *c = item->state.c;
1.19 nicm 73: char *prompt, *ptr, *input = NULL;
1.8 nicm 74: size_t n;
1.1 nicm 75:
76: if (c->prompt_string != NULL)
1.21 nicm 77: return (CMD_RETURN_NORMAL);
1.1 nicm 78:
1.39 nicm 79: cdata = xcalloc(1, sizeof *cdata);
1.1 nicm 80: cdata->c = c;
1.39 nicm 81:
1.17 nicm 82: cdata->inputs = NULL;
83: cdata->next_input = NULL;
1.39 nicm 84:
85: cdata->prompts = NULL;
1.8 nicm 86: cdata->next_prompt = NULL;
1.39 nicm 87:
1.8 nicm 88: cdata->template = NULL;
1.39 nicm 89: cdata->idx = 1;
1.8 nicm 90:
1.14 nicm 91: if (args->argc != 0)
92: cdata->template = xstrdup(args->argv[0]);
1.8 nicm 93: else
94: cdata->template = xstrdup("%1");
1.14 nicm 95:
1.17 nicm 96: if ((prompts = args_get(args, 'p')) != NULL)
1.14 nicm 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);
1.8 nicm 101: } else
102: cdata->prompts = xstrdup(":");
103:
1.17 nicm 104: /* Get first prompt. */
1.8 nicm 105: cdata->next_prompt = cdata->prompts;
106: ptr = strsep(&cdata->next_prompt, ",");
1.14 nicm 107: if (prompts == NULL)
1.8 nicm 108: prompt = xstrdup(ptr);
1.19 nicm 109: else
110: xasprintf(&prompt, "%s ", ptr);
1.17 nicm 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;
1.19 nicm 116: input = strsep(&cdata->next_input, ",");
1.17 nicm 117: }
118:
1.35 nicm 119: if (args_has(args, '1'))
1.39 nicm 120: cdata->flags |= PROMPT_SINGLE;
1.36 nicm 121: else if (args_has(args, 'N'))
1.39 nicm 122: cdata->flags |= PROMPT_NUMERIC;
123: else if (args_has(args, 'i'))
124: cdata->flags |= PROMPT_INCREMENTAL;
1.17 nicm 125: status_prompt_set(c, prompt, input, cmd_command_prompt_callback,
1.39 nicm 126: cmd_command_prompt_free, cdata, cdata->flags);
1.20 nicm 127: free(prompt);
1.1 nicm 128:
1.21 nicm 129: return (CMD_RETURN_NORMAL);
1.1 nicm 130: }
131:
1.37 nicm 132: static enum cmd_retval
1.38 nicm 133: cmd_command_prompt_error(struct cmdq_item *item, void *data)
1.37 nicm 134: {
135: char *error = data;
136:
1.38 nicm 137: cmdq_error(item, "%s", error);
1.37 nicm 138: free(error);
139:
140: return (CMD_RETURN_NORMAL);
141: }
142:
1.34 nicm 143: static int
1.39 nicm 144: cmd_command_prompt_callback(void *data, const char *s, int done)
1.1 nicm 145: {
1.8 nicm 146: struct cmd_command_prompt_cdata *cdata = data;
1.1 nicm 147: struct client *c = cdata->c;
148: struct cmd_list *cmdlist;
1.38 nicm 149: struct cmdq_item *new_item;
1.19 nicm 150: char *cause, *new_template, *prompt, *ptr;
151: char *input = NULL;
1.1 nicm 152:
1.8 nicm 153: if (s == NULL)
1.1 nicm 154: return (0);
1.39 nicm 155: if (done && (cdata->flags & PROMPT_INCREMENTAL))
156: return (0);
1.1 nicm 157:
1.17 nicm 158: new_template = cmd_template_replace(cdata->template, s, cdata->idx);
1.39 nicm 159: if (done) {
160: free(cdata->template);
161: cdata->template = new_template;
162: }
1.8 nicm 163:
1.17 nicm 164: /*
165: * Check if there are more prompts; if so, get its respective input
166: * and update the prompt data.
167: */
1.39 nicm 168: if (done && (ptr = strsep(&cdata->next_prompt, ",")) != NULL) {
1.19 nicm 169: xasprintf(&prompt, "%s ", ptr);
170: input = strsep(&cdata->next_input, ",");
1.17 nicm 171: status_prompt_update(c, prompt, input);
172:
1.20 nicm 173: free(prompt);
1.8 nicm 174: cdata->idx++;
175: return (1);
176: }
1.1 nicm 177:
1.41 nicm 178: cmdlist = cmd_string_parse(new_template, NULL, 0, &cause);
179: if (cmdlist == NULL) {
1.8 nicm 180: if (cause != NULL) {
1.38 nicm 181: new_item = cmdq_get_callback(cmd_command_prompt_error,
1.37 nicm 182: cause);
183: } else
1.38 nicm 184: new_item = NULL;
1.37 nicm 185: } else {
1.38 nicm 186: new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
1.37 nicm 187: cmd_list_free(cmdlist);
1.1 nicm 188: }
189:
1.38 nicm 190: if (new_item != NULL)
191: cmdq_append(c, new_item);
1.1 nicm 192:
1.39 nicm 193: if (!done)
194: free(new_template);
1.42 ! nicm 195: if (c->prompt_callbackfn != cmd_command_prompt_callback)
1.1 nicm 196: return (1);
197: return (0);
1.4 nicm 198: }
199:
1.34 nicm 200: static void
1.14 nicm 201: cmd_command_prompt_free(void *data)
1.4 nicm 202: {
1.8 nicm 203: struct cmd_command_prompt_cdata *cdata = data;
1.4 nicm 204:
1.20 nicm 205: free(cdata->inputs);
206: free(cdata->prompts);
207: free(cdata->template);
208: free(cdata);
1.1 nicm 209: }
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