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Annotation of src/usr.bin/tmux/cmd-list-keys.c, Revision 1.12

1.12    ! nicm        1: /* $OpenBSD: cmd-list-keys.c,v 1.11 2009/12/03 22:50:10 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
                      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:
1.3       nicm       21: #include <string.h>
                     22:
1.1       nicm       23: #include "tmux.h"
                     24:
                     25: /*
                     26:  * List key bindings.
                     27:  */
                     28:
                     29: int    cmd_list_keys_exec(struct cmd *, struct cmd_ctx *);
                     30:
1.6       nicm       31: int    cmd_list_keys_table(struct cmd *, struct cmd_ctx *);
                     32:
1.1       nicm       33: const struct cmd_entry cmd_list_keys_entry = {
                     34:        "list-keys", "lsk",
1.6       nicm       35:        "[-t key-table]",
1.9       nicm       36:        0, "",
1.6       nicm       37:        cmd_target_init,
                     38:        cmd_target_parse,
1.1       nicm       39:        cmd_list_keys_exec,
1.6       nicm       40:        cmd_target_free,
                     41:        cmd_target_print
1.1       nicm       42: };
                     43:
                     44: int
1.6       nicm       45: cmd_list_keys_exec(struct cmd *self, struct cmd_ctx *ctx)
1.1       nicm       46: {
1.6       nicm       47:        struct cmd_target_data  *data = self->data;
1.1       nicm       48:        struct key_binding      *bd;
                     49:        const char              *key;
1.8       nicm       50:        char                     tmp[BUFSIZ];
                     51:        size_t                   used;
1.4       nicm       52:        int                      width, keywidth;
1.3       nicm       53:
1.6       nicm       54:        if (data->target != NULL)
                     55:                return (cmd_list_keys_table(self, ctx));
                     56:
1.3       nicm       57:        width = 0;
                     58:        SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
1.4       nicm       59:                key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
                     60:                if (key == NULL)
1.3       nicm       61:                        continue;
                     62:
                     63:                keywidth = strlen(key) + 1;
1.4       nicm       64:                if (!(bd->key & KEYC_PREFIX))
                     65:                        keywidth += 2;
1.3       nicm       66:                if (keywidth > width)
                     67:                        width = keywidth;
                     68:        }
                     69:
1.1       nicm       70:        SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
1.4       nicm       71:                key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
                     72:                if (key == NULL)
1.1       nicm       73:                        continue;
1.10      nicm       74:                used = xsnprintf(tmp, sizeof tmp, "%*s: ", width, key);
1.8       nicm       75:                if (used >= sizeof tmp)
                     76:                        continue;
1.1       nicm       77:
1.11      nicm       78:                if (!(bd->key & KEYC_PREFIX)) {
1.10      nicm       79:                        used = strlcat(tmp, "(no prefix) ", sizeof tmp);
1.12    ! nicm       80:                        if (used >= sizeof tmp)
        !            81:                                continue;
        !            82:                }
        !            83:                if (bd->can_repeat) {
        !            84:                        used = strlcat(tmp, "(repeat) ", sizeof tmp);
1.10      nicm       85:                        if (used >= sizeof tmp)
                     86:                                continue;
                     87:                }
1.8       nicm       88:                cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
                     89:                ctx->print(ctx, "%s", tmp);
1.6       nicm       90:        }
                     91:
                     92:        return (0);
                     93: }
                     94:
                     95: int
                     96: cmd_list_keys_table(struct cmd *self, struct cmd_ctx *ctx)
                     97: {
                     98:        struct cmd_target_data          *data = self->data;
                     99:        const struct mode_key_table     *mtab;
                    100:        struct mode_key_binding         *mbind;
                    101:        const char                      *key, *cmdstr, *mode;
                    102:        int                              width, keywidth;
                    103:
1.7       nicm      104:        if ((mtab = mode_key_findtable(data->target)) == NULL) {
1.6       nicm      105:                ctx->error(ctx, "unknown key table: %s", data->target);
                    106:                return (-1);
                    107:        }
                    108:
                    109:        width = 0;
                    110:        SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
                    111:                key = key_string_lookup_key(mbind->key);
                    112:                if (key == NULL)
                    113:                        continue;
                    114:
                    115:                keywidth = strlen(key) + 1;
                    116:                if (keywidth > width)
                    117:                        width = keywidth;
                    118:        }
                    119:
                    120:        SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
                    121:                key = key_string_lookup_key(mbind->key);
                    122:                if (key == NULL)
                    123:                        continue;
                    124:
                    125:                mode = "";
                    126:                if (mbind->mode != 0)
                    127:                        mode = "(command mode) ";
                    128:                cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
                    129:                if (cmdstr != NULL)
                    130:                        ctx->print(ctx, "%*s: %s%s", width, key, mode, cmdstr);
1.1       nicm      131:        }
                    132:
                    133:        return (0);
                    134: }