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tmux 2.4

    1: /* $OpenBSD$ */
    2: 
    3: /*
    4:  * Copyright (c) 2007 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 <stdlib.h>
   22: #include <string.h>
   23: 
   24: #include "tmux.h"
   25: 
   26: /*
   27:  * Show options.
   28:  */
   29: 
   30: static enum cmd_retval	cmd_show_options_exec(struct cmd *, struct cmdq_item *);
   31: 
   32: static enum cmd_retval	cmd_show_options_one(struct cmd *, struct cmdq_item *,
   33: 			    struct options *);
   34: static enum cmd_retval	cmd_show_options_all(struct cmd *, struct cmdq_item *,
   35: 		    	    struct options *);
   36: 
   37: const struct cmd_entry cmd_show_options_entry = {
   38: 	.name = "show-options",
   39: 	.alias = "show",
   40: 
   41: 	.args = { "gqst:vw", 0, 1 },
   42: 	.usage = "[-gqsvw] [-t target-session|target-window] [option]",
   43: 
   44: 	.tflag = CMD_WINDOW_CANFAIL,
   45: 
   46: 	.flags = CMD_AFTERHOOK,
   47: 	.exec = cmd_show_options_exec
   48: };
   49: 
   50: const struct cmd_entry cmd_show_window_options_entry = {
   51: 	.name = "show-window-options",
   52: 	.alias = "showw",
   53: 
   54: 	.args = { "gvt:", 0, 1 },
   55: 	.usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]",
   56: 
   57: 	.tflag = CMD_WINDOW_CANFAIL,
   58: 
   59: 	.flags = CMD_AFTERHOOK,
   60: 	.exec = cmd_show_options_exec
   61: };
   62: 
   63: static enum cmd_retval
   64: cmd_show_options_exec(struct cmd *self, struct cmdq_item *item)
   65: {
   66: 	struct args			*args = self->args;
   67: 	struct cmd_find_state		*fs = &item->state.tflag;
   68: 	struct options			*oo;
   69: 	enum options_table_scope	 scope;
   70: 	char				*cause;
   71: 	int				 window;
   72: 
   73: 	window = (self->entry == &cmd_show_window_options_entry);
   74: 	scope = options_scope_from_flags(args, window, fs, &oo, &cause);
   75: 	if (scope == OPTIONS_TABLE_NONE) {
   76: 		cmdq_error(item, "%s", cause);
   77: 		free(cause);
   78: 		return (CMD_RETURN_ERROR);
   79: 	}
   80: 
   81: 	if (args->argc == 0)
   82: 		return (cmd_show_options_all(self, item, oo));
   83: 	else
   84: 		return (cmd_show_options_one(self, item, oo));
   85: }
   86: 
   87: static void
   88: cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
   89:     struct options_entry *o, int idx)
   90: {
   91: 	const char	*name;
   92: 	const char	*value;
   93: 	char		*tmp, *escaped;
   94: 	u_int		 size, i;
   95: 
   96: 	if (idx != -1) {
   97: 		xasprintf(&tmp, "%s[%d]", options_name(o), idx);
   98: 		name = tmp;
   99: 	} else {
  100: 		if (options_array_size(o, &size) != -1) {
  101: 			for (i = 0; i < size; i++) {
  102: 				if (options_array_get(o, i) == NULL)
  103: 					continue;
  104: 				cmd_show_options_print(self, item, o, i);
  105: 			}
  106: 			return;
  107: 		}
  108: 		tmp = NULL;
  109: 		name = options_name(o);
  110: 	}
  111: 
  112: 	value = options_tostring(o, idx, 0);
  113: 	if (args_has(self->args, 'v'))
  114: 		cmdq_print(item, "%s", value);
  115: 	else if (options_isstring(o)) {
  116: 		utf8_stravis(&escaped, value, VIS_OCTAL|VIS_TAB|VIS_NL|VIS_DQ);
  117: 		cmdq_print(item, "%s \"%s\"", name, escaped);
  118: 		free(escaped);
  119: 	} else
  120: 		cmdq_print(item, "%s %s", name, value);
  121: 
  122: 	free(tmp);
  123: }
  124: 
  125: static enum cmd_retval
  126: cmd_show_options_one(struct cmd *self, struct cmdq_item *item,
  127:     struct options *oo)
  128: {
  129: 	struct args		*args = self->args;
  130: 	struct options_entry	*o;
  131: 	int			 idx, ambiguous;
  132: 	const char		*name = args->argv[0];
  133: 
  134: 	o = options_match_get(oo, name, &idx, 1, &ambiguous);
  135: 	if (o == NULL) {
  136: 		if (args_has(args, 'q'))
  137: 			return (CMD_RETURN_NORMAL);
  138: 		if (ambiguous) {
  139: 			cmdq_error(item, "ambiguous option: %s", name);
  140: 			return (CMD_RETURN_ERROR);
  141: 		}
  142: 		if (*name != '@' &&
  143: 		    options_match_get(oo, name, &idx, 0, &ambiguous) != NULL)
  144: 			return (CMD_RETURN_NORMAL);
  145: 		cmdq_error(item, "unknown option: %s", name);
  146: 		return (CMD_RETURN_ERROR);
  147: 	}
  148: 	cmd_show_options_print(self, item, o, idx);
  149: 	return (CMD_RETURN_NORMAL);
  150: }
  151: 
  152: static enum cmd_retval
  153: cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
  154:     struct options *oo)
  155: {
  156: 	struct options_entry			 *o;
  157: 	const struct options_table_entry	*oe;
  158: 	u_int					 size, idx;
  159: 
  160: 	o = options_first(oo);
  161: 	while (o != NULL) {
  162: 		oe = options_table_entry(o);
  163: 		if (oe != NULL && oe->style != NULL) {
  164: 			o = options_next(o);
  165: 			continue;
  166: 		}
  167: 		if (options_array_size(o, &size) == -1)
  168: 			cmd_show_options_print(self, item, o, -1);
  169: 		else {
  170: 			for (idx = 0; idx < size; idx++) {
  171: 				if (options_array_get(o, idx) == NULL)
  172: 					continue;
  173: 				cmd_show_options_print(self, item, o, idx);
  174: 			}
  175: 		}
  176: 		o = options_next(o);
  177: 	}
  178: 	return (CMD_RETURN_NORMAL);
  179: }