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Annotation of src/usr.bin/tmux/cmd-show-options.c, Revision 1.43

1.43    ! nicm        1: /* $OpenBSD: cmd-show-options.c,v 1.42 2017/05/10 13:05:41 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.30      nicm        4:  * Copyright (c) 2007 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 <stdlib.h>
                     22: #include <string.h>
1.35      nicm       23: #include <vis.h>
1.1       nicm       24:
                     25: #include "tmux.h"
                     26:
                     27: /*
                     28:  * Show options.
                     29:  */
                     30:
1.34      nicm       31: static enum cmd_retval cmd_show_options_exec(struct cmd *, struct cmdq_item *);
1.1       nicm       32:
1.34      nicm       33: static enum cmd_retval cmd_show_options_one(struct cmd *, struct cmdq_item *,
1.35      nicm       34:                            struct options *);
1.34      nicm       35: static enum cmd_retval cmd_show_options_all(struct cmd *, struct cmdq_item *,
1.35      nicm       36:                            struct options *);
1.18      nicm       37:
1.1       nicm       38: const struct cmd_entry cmd_show_options_entry = {
1.28      nicm       39:        .name = "show-options",
                     40:        .alias = "show",
                     41:
                     42:        .args = { "gqst:vw", 0, 1 },
                     43:        .usage = "[-gqsvw] [-t target-session|target-window] [option]",
                     44:
1.41      nicm       45:        .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
1.29      nicm       46:
1.33      nicm       47:        .flags = CMD_AFTERHOOK,
1.28      nicm       48:        .exec = cmd_show_options_exec
1.1       nicm       49: };
                     50:
1.13      nicm       51: const struct cmd_entry cmd_show_window_options_entry = {
1.28      nicm       52:        .name = "show-window-options",
                     53:        .alias = "showw",
                     54:
                     55:        .args = { "gvt:", 0, 1 },
                     56:        .usage = "[-gv] " CMD_TARGET_WINDOW_USAGE " [option]",
                     57:
1.41      nicm       58:        .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
1.29      nicm       59:
1.33      nicm       60:        .flags = CMD_AFTERHOOK,
1.28      nicm       61:        .exec = cmd_show_options_exec
1.13      nicm       62: };
                     63:
1.32      nicm       64: static enum cmd_retval
1.34      nicm       65: cmd_show_options_exec(struct cmd *self, struct cmdq_item *item)
1.1       nicm       66: {
1.31      nicm       67:        struct args                     *args = self->args;
1.41      nicm       68:        struct cmd_find_state           *fs = &item->target;
1.31      nicm       69:        struct options                  *oo;
                     70:        enum options_table_scope         scope;
1.35      nicm       71:        char                            *cause;
                     72:        int                              window;
1.1       nicm       73:
1.35      nicm       74:        window = (self->entry == &cmd_show_window_options_entry);
                     75:        scope = options_scope_from_flags(args, window, fs, &oo, &cause);
                     76:        if (scope == OPTIONS_TABLE_NONE) {
                     77:                cmdq_error(item, "%s", cause);
                     78:                free(cause);
                     79:                return (CMD_RETURN_ERROR);
1.1       nicm       80:        }
                     81:
1.20      nicm       82:        if (args->argc == 0)
1.35      nicm       83:                return (cmd_show_options_all(self, item, oo));
1.18      nicm       84:        else
1.35      nicm       85:                return (cmd_show_options_one(self, item, oo));
                     86: }
                     87:
                     88: static void
                     89: cmd_show_options_print(struct cmd *self, struct cmdq_item *item,
1.36      nicm       90:     struct options_entry *o, int idx)
1.35      nicm       91: {
1.43    ! nicm       92:        struct options_array_item       *a;
        !            93:        const char                      *name, *value;
        !            94:        char                            *tmp, *escaped;
1.35      nicm       95:
                     96:        if (idx != -1) {
                     97:                xasprintf(&tmp, "%s[%d]", options_name(o), idx);
                     98:                name = tmp;
                     99:        } else {
1.43    ! nicm      100:                if (options_isarray(o)) {
        !           101:                        a = options_array_first(o);
        !           102:                        while (a != NULL) {
        !           103:                                idx = options_array_item_index(a);
        !           104:                                cmd_show_options_print(self, item, o, idx);
        !           105:                                a = options_array_next(a);
1.39      nicm      106:                        }
                    107:                        return;
                    108:                }
1.35      nicm      109:                tmp = NULL;
                    110:                name = options_name(o);
                    111:        }
                    112:
1.40      nicm      113:        value = options_tostring(o, idx, 0);
1.35      nicm      114:        if (args_has(self->args, 'v'))
                    115:                cmdq_print(item, "%s", value);
                    116:        else if (options_isstring(o)) {
1.38      nicm      117:                utf8_stravis(&escaped, value, VIS_OCTAL|VIS_TAB|VIS_NL|VIS_DQ);
1.35      nicm      118:                cmdq_print(item, "%s \"%s\"", name, escaped);
                    119:                free(escaped);
                    120:        } else
                    121:                cmdq_print(item, "%s %s", name, value);
                    122:
                    123:        free(tmp);
1.18      nicm      124: }
                    125:
1.32      nicm      126: static enum cmd_retval
1.34      nicm      127: cmd_show_options_one(struct cmd *self, struct cmdq_item *item,
1.35      nicm      128:     struct options *oo)
1.18      nicm      129: {
1.36      nicm      130:        struct args             *args = self->args;
1.42      nicm      131:        struct client           *c = cmd_find_client(item, NULL, 1);
                    132:        struct session          *s = item->target.s;
                    133:        struct winlink          *wl = item->target.wl;
1.36      nicm      134:        struct options_entry    *o;
                    135:        int                      idx, ambiguous;
1.42      nicm      136:        char                    *name;
1.35      nicm      137:
1.42      nicm      138:        name = format_single(item, args->argv[0], c, s, wl, NULL);
1.35      nicm      139:        o = options_match_get(oo, name, &idx, 1, &ambiguous);
                    140:        if (o == NULL) {
1.42      nicm      141:                if (args_has(args, 'q')) {
                    142:                        free(name);
1.35      nicm      143:                        return (CMD_RETURN_NORMAL);
1.42      nicm      144:                }
1.35      nicm      145:                if (ambiguous) {
                    146:                        cmdq_error(item, "ambiguous option: %s", name);
1.42      nicm      147:                        free(name);
1.16      nicm      148:                        return (CMD_RETURN_ERROR);
1.15      nicm      149:                }
1.37      nicm      150:                if (*name != '@' &&
1.42      nicm      151:                    options_match_get(oo, name, &idx, 0, &ambiguous) != NULL) {
                    152:                        free(name);
1.25      nicm      153:                        return (CMD_RETURN_NORMAL);
1.42      nicm      154:                }
1.34      nicm      155:                cmdq_error(item, "unknown option: %s", name);
1.42      nicm      156:                free(name);
1.18      nicm      157:                return (CMD_RETURN_ERROR);
                    158:        }
1.35      nicm      159:        cmd_show_options_print(self, item, o, idx);
1.42      nicm      160:        free(name);
1.18      nicm      161:        return (CMD_RETURN_NORMAL);
                    162: }
                    163:
1.32      nicm      164: static enum cmd_retval
1.34      nicm      165: cmd_show_options_all(struct cmd *self, struct cmdq_item *item,
1.35      nicm      166:     struct options *oo)
1.18      nicm      167: {
1.43    ! nicm      168:        struct options_entry                    *o;
1.36      nicm      169:        const struct options_table_entry        *oe;
1.43    ! nicm      170:        struct options_array_item               *a;
        !           171:        u_int                                    idx;
1.18      nicm      172:
1.24      nicm      173:        o = options_first(oo);
                    174:        while (o != NULL) {
1.35      nicm      175:                oe = options_table_entry(o);
                    176:                if (oe != NULL && oe->style != NULL) {
                    177:                        o = options_next(o);
                    178:                        continue;
                    179:                }
1.43    ! nicm      180:                if (!options_isarray(o))
1.35      nicm      181:                        cmd_show_options_print(self, item, o, -1);
                    182:                else {
1.43    ! nicm      183:                        a = options_array_first(o);
        !           184:                        while (a != NULL) {
        !           185:                                idx = options_array_item_index(a);
1.35      nicm      186:                                cmd_show_options_print(self, item, o, idx);
1.43    ! nicm      187:                                a = options_array_next(a);
1.35      nicm      188:                        }
1.15      nicm      189:                }
1.24      nicm      190:                o = options_next(o);
1.18      nicm      191:        }
1.16      nicm      192:        return (CMD_RETURN_NORMAL);
1.1       nicm      193: }