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https://github.com/tmux/tmux.git
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03758a50dc
command execution is not needed.
743 lines
18 KiB
C
743 lines
18 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2011 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <ctype.h>
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#include <errno.h>
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#include <netdb.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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* Build a list of key-value pairs and use them to expand #{key} entries in a
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* string.
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*/
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int format_replace(struct format_tree *, const char *, size_t, char **,
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size_t *, size_t *);
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char *format_get_command(struct window_pane *);
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void format_defaults_pane_tabs(struct format_tree *, struct window_pane *);
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void format_defaults_session(struct format_tree *, struct session *);
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void format_defaults_client(struct format_tree *, struct client *);
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void format_defaults_winlink(struct format_tree *, struct session *,
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struct winlink *);
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/* Entry in format tree. */
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struct format_entry {
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char *key;
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char *value;
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RB_ENTRY(format_entry) entry;
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};
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/* Tree of format entries. */
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struct format_tree {
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struct window *w;
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struct session *s;
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RB_HEAD(format_rb_tree, format_entry) tree;
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};
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/* Format key-value replacement entry. */
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int format_cmp(struct format_entry *, struct format_entry *);
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RB_PROTOTYPE(format_rb_tree, format_entry, entry, format_cmp);
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RB_GENERATE(format_rb_tree, format_entry, entry, format_cmp);
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/* Format tree comparison function. */
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int
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format_cmp(struct format_entry *fe1, struct format_entry *fe2)
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{
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return (strcmp(fe1->key, fe2->key));
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}
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/* Single-character uppercase aliases. */
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const char *format_upper[] = {
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NULL, /* A */
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NULL, /* B */
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NULL, /* C */
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"pane_id", /* D */
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NULL, /* E */
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"window_flags", /* F */
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NULL, /* G */
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"host", /* H */
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"window_index", /* I */
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NULL, /* J */
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NULL, /* K */
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NULL, /* L */
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NULL, /* M */
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NULL, /* N */
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NULL, /* O */
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"pane_index", /* P */
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NULL, /* Q */
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NULL, /* R */
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"session_name", /* S */
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"pane_title", /* T */
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NULL, /* U */
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NULL, /* V */
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"window_name", /* W */
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NULL, /* X */
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NULL, /* Y */
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NULL /* Z */
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};
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/* Single-character lowercase aliases. */
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const char *format_lower[] = {
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NULL, /* a */
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NULL, /* b */
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NULL, /* c */
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NULL, /* d */
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NULL, /* e */
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NULL, /* f */
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NULL, /* g */
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"host_short", /* h */
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NULL, /* i */
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NULL, /* j */
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NULL, /* k */
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NULL, /* l */
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NULL, /* m */
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NULL, /* n */
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NULL, /* o */
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NULL, /* p */
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NULL, /* q */
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NULL, /* r */
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NULL, /* s */
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NULL, /* t */
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NULL, /* u */
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NULL, /* v */
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NULL, /* w */
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NULL, /* x */
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NULL, /* y */
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NULL /* z */
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};
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/* Create a new tree. */
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struct format_tree *
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format_create(void)
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{
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struct format_tree *ft;
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char host[HOST_NAME_MAX+1], *ptr;
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ft = xcalloc(1, sizeof *ft);
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RB_INIT(&ft->tree);
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if (gethostname(host, sizeof host) == 0) {
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format_add(ft, "host", "%s", host);
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if ((ptr = strchr(host, '.')) != NULL)
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*ptr = '\0';
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format_add(ft, "host_short", "%s", host);
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}
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return (ft);
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}
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/* Free a tree. */
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void
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format_free(struct format_tree *ft)
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{
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struct format_entry *fe, *fe1;
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RB_FOREACH_SAFE(fe, format_rb_tree, &ft->tree, fe1) {
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RB_REMOVE(format_rb_tree, &ft->tree, fe);
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free(fe->value);
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free(fe->key);
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free(fe);
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}
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free(ft);
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}
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/* Add a key-value pair. */
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void
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format_add(struct format_tree *ft, const char *key, const char *fmt, ...)
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{
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struct format_entry *fe;
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struct format_entry *fe_now;
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va_list ap;
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fe = xmalloc(sizeof *fe);
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fe->key = xstrdup(key);
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va_start(ap, fmt);
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xvasprintf(&fe->value, fmt, ap);
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va_end(ap);
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fe_now = RB_INSERT(format_rb_tree, &ft->tree, fe);
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if (fe_now != NULL) {
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free(fe_now->value);
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fe_now->value = fe->value;
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free(fe->key);
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free(fe);
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}
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}
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/* Find a format entry. */
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const char *
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format_find(struct format_tree *ft, const char *key)
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{
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struct format_entry *fe, fe_find;
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struct options_entry *o;
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static char s[16];
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o = options_find(&global_options, key);
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if (o == NULL && ft->w != NULL)
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o = options_find(&ft->w->options, key);
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if (o == NULL)
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o = options_find(&global_w_options, key);
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if (o == NULL && ft->s != NULL)
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o = options_find(&ft->s->options, key);
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if (o == NULL)
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o = options_find(&global_s_options, key);
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if (o != NULL) {
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switch (o->type) {
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case OPTIONS_STRING:
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return (o->str);
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case OPTIONS_NUMBER:
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snprintf(s, sizeof s, "%lld", o->num);
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return (s);
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case OPTIONS_STYLE:
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return (style_tostring(&o->style));
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}
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}
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fe_find.key = (char *) key;
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fe = RB_FIND(format_rb_tree, &ft->tree, &fe_find);
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if (fe == NULL)
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return (NULL);
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return (fe->value);
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}
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/*
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* Replace a key/value pair in buffer. #{blah} is expanded directly,
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* #{?blah,a,b} is replace with a if blah exists and is nonzero else b.
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*/
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int
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format_replace(struct format_tree *ft, const char *key, size_t keylen,
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char **buf, size_t *len, size_t *off)
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{
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char *copy, *copy0, *endptr, *ptr, *saved, *trimmed;
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const char *value;
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size_t valuelen;
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u_long limit = 0;
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/* Make a copy of the key. */
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copy0 = copy = xmalloc(keylen + 1);
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memcpy(copy, key, keylen);
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copy[keylen] = '\0';
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/* Is there a length limit or whatnot? */
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if (!islower((u_char) *copy) && *copy != '@' && *copy != '?') {
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while (*copy != ':' && *copy != '\0') {
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switch (*copy) {
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case '=':
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errno = 0;
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limit = strtoul(copy + 1, &endptr, 10);
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if (errno == ERANGE && limit == ULONG_MAX)
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goto fail;
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copy = endptr;
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break;
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default:
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copy++;
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break;
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}
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}
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if (*copy != ':')
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goto fail;
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copy++;
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}
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/*
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* Is this a conditional? If so, check it exists and extract either the
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* first or second element. If not, look up the key directly.
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*/
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if (*copy == '?') {
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ptr = strchr(copy, ',');
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if (ptr == NULL)
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goto fail;
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*ptr = '\0';
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value = format_find(ft, copy + 1);
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if (value != NULL && *value != '\0' &&
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(value[0] != '0' || value[1] != '\0')) {
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value = ptr + 1;
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ptr = strchr(value, ',');
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if (ptr == NULL)
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goto fail;
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*ptr = '\0';
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} else {
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ptr = strchr(ptr + 1, ',');
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if (ptr == NULL)
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goto fail;
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value = ptr + 1;
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}
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saved = format_expand(ft, value);
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value = saved;
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} else {
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value = format_find(ft, copy);
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if (value == NULL)
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value = "";
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saved = NULL;
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}
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/* Truncate the value if needed. */
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if (limit != 0) {
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value = trimmed = utf8_trimcstr(value, limit);
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free(saved);
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saved = trimmed;
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}
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valuelen = strlen(value);
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/* Expand the buffer and copy in the value. */
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while (*len - *off < valuelen + 1) {
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*buf = xreallocarray(*buf, 2, *len);
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*len *= 2;
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}
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memcpy(*buf + *off, value, valuelen);
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*off += valuelen;
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free(saved);
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free(copy0);
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return (0);
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fail:
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free(copy0);
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return (-1);
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}
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/* Expand keys in a template, passing through strftime first. */
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char *
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format_expand_time(struct format_tree *ft, const char *fmt, time_t t)
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{
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char *tmp, *expanded;
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size_t tmplen;
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struct tm *tm;
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if (fmt == NULL)
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return (xstrdup(""));
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tm = localtime(&t);
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tmp = NULL;
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tmplen = strlen(fmt);
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do {
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tmp = xreallocarray(tmp, 2, tmplen);
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tmplen *= 2;
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} while (strftime(tmp, tmplen, fmt, tm) == 0);
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expanded = format_expand(ft, tmp);
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free(tmp);
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return (expanded);
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}
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/* Expand keys in a template. */
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char *
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format_expand(struct format_tree *ft, const char *fmt)
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{
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char *buf;
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const char *ptr, *s;
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size_t off, len, n;
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int ch, brackets;
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if (fmt == NULL)
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return (xstrdup(""));
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len = 64;
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buf = xmalloc(len);
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off = 0;
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while (*fmt != '\0') {
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if (*fmt != '#') {
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while (len - off < 2) {
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buf = xreallocarray(buf, 2, len);
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len *= 2;
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}
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buf[off++] = *fmt++;
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continue;
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}
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fmt++;
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ch = (u_char) *fmt++;
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switch (ch) {
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case '{':
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brackets = 1;
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for (ptr = fmt; *ptr != '\0'; ptr++) {
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if (*ptr == '{')
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brackets++;
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if (*ptr == '}' && --brackets == 0)
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break;
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}
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if (*ptr != '}' || brackets != 0)
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break;
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n = ptr - fmt;
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if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
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break;
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fmt += n + 1;
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continue;
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case '#':
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while (len - off < 2) {
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buf = xreallocarray(buf, 2, len);
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len *= 2;
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}
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buf[off++] = '#';
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continue;
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default:
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s = NULL;
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if (ch >= 'A' && ch <= 'Z')
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s = format_upper[ch - 'A'];
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else if (ch >= 'a' && ch <= 'z')
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s = format_lower[ch - 'a'];
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if (s == NULL) {
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while (len - off < 3) {
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buf = xreallocarray(buf, 2, len);
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len *= 2;
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}
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buf[off++] = '#';
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buf[off++] = ch;
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continue;
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}
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n = strlen(s);
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if (format_replace(ft, s, n, &buf, &len, &off) != 0)
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break;
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continue;
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}
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break;
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}
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buf[off] = '\0';
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return (buf);
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}
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/* Get command name for format. */
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char *
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format_get_command(struct window_pane *wp)
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{
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char *cmd, *out;
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cmd = get_proc_name(wp->fd, wp->tty);
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if (cmd == NULL || *cmd == '\0') {
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free(cmd);
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cmd = cmd_stringify_argv(wp->argc, wp->argv);
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if (cmd == NULL || *cmd == '\0') {
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free(cmd);
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cmd = xstrdup(wp->shell);
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}
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}
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out = parse_window_name(cmd);
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free(cmd);
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return (out);
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}
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/* Set defaults for any of arguments that are not NULL. */
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void
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format_defaults(struct format_tree *ft, struct client *c, struct session *s,
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struct winlink *wl, struct window_pane *wp)
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{
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if (s == NULL && c != NULL)
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s = c->session;
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if (wl == NULL && s != NULL)
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wl = s->curw;
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if (wp == NULL && wl != NULL)
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wp = wl->window->active;
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if (c != NULL)
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format_defaults_client(ft, c);
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if (s != NULL)
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format_defaults_session(ft, s);
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if (s != NULL && wl != NULL)
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format_defaults_winlink(ft, s, wl);
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if (wp != NULL)
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format_defaults_pane(ft, wp);
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}
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|
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/* Set default format keys for a session. */
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void
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format_defaults_session(struct format_tree *ft, struct session *s)
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{
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struct session_group *sg;
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char *tim;
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time_t t;
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ft->s = s;
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format_add(ft, "session_name", "%s", s->name);
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format_add(ft, "session_windows", "%u", winlink_count(&s->windows));
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format_add(ft, "session_width", "%u", s->sx);
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format_add(ft, "session_height", "%u", s->sy);
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format_add(ft, "session_id", "$%u", s->id);
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sg = session_group_find(s);
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format_add(ft, "session_grouped", "%d", sg != NULL);
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if (sg != NULL)
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format_add(ft, "session_group", "%u", session_group_index(sg));
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|
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t = s->creation_time.tv_sec;
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format_add(ft, "session_created", "%lld", (long long) t);
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tim = ctime(&t);
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*strchr(tim, '\n') = '\0';
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format_add(ft, "session_created_string", "%s", tim);
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format_add(ft, "session_attached", "%u", s->attached);
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format_add(ft, "session_many_attached", "%u", s->attached > 1);
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}
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|
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/* Set default format keys for a client. */
|
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void
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format_defaults_client(struct format_tree *ft, struct client *c)
|
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{
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char *tim;
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time_t t;
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struct session *s;
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|
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if (ft->s == NULL)
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ft->s = c->session;
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format_add(ft, "client_height", "%u", c->tty.sy);
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format_add(ft, "client_width", "%u", c->tty.sx);
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if (c->tty.path != NULL)
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format_add(ft, "client_tty", "%s", c->tty.path);
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if (c->tty.termname != NULL)
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format_add(ft, "client_termname", "%s", c->tty.termname);
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t = c->creation_time.tv_sec;
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format_add(ft, "client_created", "%lld", (long long) t);
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tim = ctime(&t);
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*strchr(tim, '\n') = '\0';
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format_add(ft, "client_created_string", "%s", tim);
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|
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t = c->activity_time.tv_sec;
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format_add(ft, "client_activity", "%lld", (long long) t);
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tim = ctime(&t);
|
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*strchr(tim, '\n') = '\0';
|
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format_add(ft, "client_activity_string", "%s", tim);
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|
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format_add(ft, "client_prefix", "%d", !!(c->flags & CLIENT_PREFIX));
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|
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if (c->tty.flags & TTY_UTF8)
|
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format_add(ft, "client_utf8", "%d", 1);
|
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else
|
|
format_add(ft, "client_utf8", "%d", 0);
|
|
|
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if (c->flags & CLIENT_READONLY)
|
|
format_add(ft, "client_readonly", "%d", 1);
|
|
else
|
|
format_add(ft, "client_readonly", "%d", 0);
|
|
|
|
s = c->session;
|
|
if (s != NULL)
|
|
format_add(ft, "client_session", "%s", s->name);
|
|
s = c->last_session;
|
|
if (s != NULL && session_alive(s))
|
|
format_add(ft, "client_last_session", "%s", s->name);
|
|
}
|
|
|
|
/* Set default format keys for a window. */
|
|
void
|
|
format_defaults_window(struct format_tree *ft, struct window *w)
|
|
{
|
|
char *layout;
|
|
|
|
ft->w = w;
|
|
|
|
layout = layout_dump(w);
|
|
|
|
format_add(ft, "window_id", "@%u", w->id);
|
|
format_add(ft, "window_name", "%s", w->name);
|
|
format_add(ft, "window_width", "%u", w->sx);
|
|
format_add(ft, "window_height", "%u", w->sy);
|
|
format_add(ft, "window_layout", "%s", layout);
|
|
format_add(ft, "window_panes", "%u", window_count_panes(w));
|
|
format_add(ft, "window_zoomed_flag", "%u",
|
|
!!(w->flags & WINDOW_ZOOMED));
|
|
|
|
free(layout);
|
|
}
|
|
|
|
/* Set default format keys for a winlink. */
|
|
void
|
|
format_defaults_winlink(struct format_tree *ft, struct session *s,
|
|
struct winlink *wl)
|
|
{
|
|
struct window *w = wl->window;
|
|
char *flags;
|
|
|
|
if (ft->w == NULL)
|
|
ft->w = wl->window;
|
|
|
|
flags = window_printable_flags(s, wl);
|
|
|
|
format_defaults_window(ft, w);
|
|
|
|
format_add(ft, "window_index", "%d", wl->idx);
|
|
format_add(ft, "window_flags", "%s", flags);
|
|
format_add(ft, "window_active", "%d", wl == s->curw);
|
|
|
|
format_add(ft, "window_bell_flag", "%u",
|
|
!!(wl->flags & WINLINK_BELL));
|
|
format_add(ft, "window_activity_flag", "%u",
|
|
!!(wl->flags & WINLINK_ACTIVITY));
|
|
format_add(ft, "window_silence_flag", "%u",
|
|
!!(wl->flags & WINLINK_SILENCE));
|
|
format_add(ft, "window_last_flag", "%u",
|
|
!!(wl == TAILQ_FIRST(&s->lastw)));
|
|
|
|
free(flags);
|
|
}
|
|
|
|
/* Add window pane tabs. */
|
|
void
|
|
format_defaults_pane_tabs(struct format_tree *ft, struct window_pane *wp)
|
|
{
|
|
struct evbuffer *buffer;
|
|
u_int i;
|
|
|
|
buffer = evbuffer_new();
|
|
for (i = 0; i < wp->base.grid->sx; i++) {
|
|
if (!bit_test(wp->base.tabs, i))
|
|
continue;
|
|
|
|
if (EVBUFFER_LENGTH(buffer) > 0)
|
|
evbuffer_add(buffer, ",", 1);
|
|
evbuffer_add_printf(buffer, "%d", i);
|
|
}
|
|
|
|
format_add(ft, "pane_tabs", "%.*s", (int) EVBUFFER_LENGTH(buffer),
|
|
EVBUFFER_DATA(buffer));
|
|
evbuffer_free(buffer);
|
|
}
|
|
|
|
/* Set default format keys for a window pane. */
|
|
void
|
|
format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
|
|
{
|
|
struct grid *gd = wp->base.grid;
|
|
struct grid_line *gl;
|
|
unsigned long long size;
|
|
u_int i, idx;
|
|
char *cmd;
|
|
int status;
|
|
|
|
if (ft->w == NULL)
|
|
ft->w = wp->window;
|
|
|
|
size = 0;
|
|
for (i = 0; i < gd->hsize; i++) {
|
|
gl = &gd->linedata[i];
|
|
size += gl->cellsize * sizeof *gl->celldata;
|
|
}
|
|
size += gd->hsize * sizeof *gd->linedata;
|
|
format_add(ft, "history_size", "%u", gd->hsize);
|
|
format_add(ft, "history_limit", "%u", gd->hlimit);
|
|
format_add(ft, "history_bytes", "%llu", size);
|
|
|
|
if (window_pane_index(wp, &idx) != 0)
|
|
fatalx("index not found");
|
|
format_add(ft, "pane_index", "%u", idx);
|
|
|
|
format_add(ft, "pane_width", "%u", wp->sx);
|
|
format_add(ft, "pane_height", "%u", wp->sy);
|
|
format_add(ft, "pane_title", "%s", wp->base.title);
|
|
format_add(ft, "pane_id", "%%%u", wp->id);
|
|
format_add(ft, "pane_active", "%d", wp == wp->window->active);
|
|
format_add(ft, "pane_input_off", "%d", !!(wp->flags & PANE_INPUTOFF));
|
|
|
|
status = wp->status;
|
|
if (wp->fd == -1 && WIFEXITED(status))
|
|
format_add(ft, "pane_dead_status", "%d", WEXITSTATUS(status));
|
|
format_add(ft, "pane_dead", "%d", wp->fd == -1);
|
|
|
|
if (window_pane_visible(wp)) {
|
|
format_add(ft, "pane_left", "%u", wp->xoff);
|
|
format_add(ft, "pane_top", "%u", wp->yoff);
|
|
format_add(ft, "pane_right", "%u", wp->xoff + wp->sx - 1);
|
|
format_add(ft, "pane_bottom", "%u", wp->yoff + wp->sy - 1);
|
|
}
|
|
|
|
format_add(ft, "pane_in_mode", "%d", wp->screen != &wp->base);
|
|
format_add(ft, "pane_synchronized", "%d",
|
|
!!options_get_number(&wp->window->options, "synchronize-panes"));
|
|
|
|
if (wp->tty != NULL)
|
|
format_add(ft, "pane_tty", "%s", wp->tty);
|
|
format_add(ft, "pane_pid", "%ld", (long) wp->pid);
|
|
if ((cmd = cmd_stringify_argv(wp->argc, wp->argv)) != NULL) {
|
|
format_add(ft, "pane_start_command", "%s", cmd);
|
|
free(cmd);
|
|
}
|
|
if ((cmd = format_get_command(wp)) != NULL) {
|
|
format_add(ft, "pane_current_command", "%s", cmd);
|
|
free(cmd);
|
|
}
|
|
|
|
format_add(ft, "cursor_x", "%d", wp->base.cx);
|
|
format_add(ft, "cursor_y", "%d", wp->base.cy);
|
|
format_add(ft, "scroll_region_upper", "%d", wp->base.rupper);
|
|
format_add(ft, "scroll_region_lower", "%d", wp->base.rlower);
|
|
format_add(ft, "saved_cursor_x", "%d", wp->ictx.old_cx);
|
|
format_add(ft, "saved_cursor_y", "%d", wp->ictx.old_cy);
|
|
|
|
format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
|
|
format_add(ft, "alternate_saved_x", "%d", wp->saved_cx);
|
|
format_add(ft, "alternate_saved_y", "%d", wp->saved_cy);
|
|
|
|
format_add(ft, "cursor_flag", "%d",
|
|
!!(wp->base.mode & MODE_CURSOR));
|
|
format_add(ft, "insert_flag", "%d",
|
|
!!(wp->base.mode & MODE_INSERT));
|
|
format_add(ft, "keypad_cursor_flag", "%d",
|
|
!!(wp->base.mode & MODE_KCURSOR));
|
|
format_add(ft, "keypad_flag", "%d",
|
|
!!(wp->base.mode & MODE_KKEYPAD));
|
|
format_add(ft, "wrap_flag", "%d",
|
|
!!(wp->base.mode & MODE_WRAP));
|
|
|
|
format_add(ft, "mouse_standard_flag", "%d",
|
|
!!(wp->base.mode & MODE_MOUSE_STANDARD));
|
|
format_add(ft, "mouse_button_flag", "%d",
|
|
!!(wp->base.mode & MODE_MOUSE_BUTTON));
|
|
format_add(ft, "mouse_utf8_flag", "%d",
|
|
!!(wp->base.mode & MODE_MOUSE_UTF8));
|
|
|
|
format_defaults_pane_tabs(ft, wp);
|
|
}
|
|
|
|
/* Set default format keys for paste buffer. */
|
|
void
|
|
format_defaults_paste_buffer(struct format_tree *ft, struct paste_buffer *pb,
|
|
int utf8flag)
|
|
{
|
|
char *s;
|
|
|
|
format_add(ft, "buffer_size", "%zu", pb->size);
|
|
format_add(ft, "buffer_name", "%s", pb->name);
|
|
|
|
s = paste_make_sample(pb, utf8flag);
|
|
format_add(ft, "buffer_sample", "%s", s);
|
|
free(s);
|
|
}
|