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tmux/tty-term.c

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/* $OpenBSD$ */
/*
* Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <curses.h>
#include <fnmatch.h>
#include <stdlib.h>
#include <string.h>
#include <term.h>
#include <vis.h>
#include "tmux.h"
static void tty_term_override(struct tty_term *, const char *);
static char *tty_term_strip(const char *);
struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
enum tty_code_type {
TTYCODE_NONE = 0,
TTYCODE_STRING,
TTYCODE_NUMBER,
TTYCODE_FLAG,
};
struct tty_code {
enum tty_code_type type;
union {
char *string;
int number;
int flag;
} value;
};
struct tty_term_code_entry {
enum tty_code_type type;
const char *name;
};
static const struct tty_term_code_entry tty_term_codes[] = {
[TTYC_ACSC] = { TTYCODE_STRING, "acsc" },
[TTYC_AX] = { TTYCODE_FLAG, "AX" },
[TTYC_BCE] = { TTYCODE_FLAG, "bce" },
[TTYC_BEL] = { TTYCODE_STRING, "bel" },
[TTYC_BLINK] = { TTYCODE_STRING, "blink" },
[TTYC_BOLD] = { TTYCODE_STRING, "bold" },
[TTYC_CIVIS] = { TTYCODE_STRING, "civis" },
[TTYC_CLEAR] = { TTYCODE_STRING, "clear" },
[TTYC_CNORM] = { TTYCODE_STRING, "cnorm" },
[TTYC_COLORS] = { TTYCODE_NUMBER, "colors" },
[TTYC_CR] = { TTYCODE_STRING, "Cr" },
[TTYC_CS] = { TTYCODE_STRING, "Cs" },
[TTYC_CSR] = { TTYCODE_STRING, "csr" },
[TTYC_CUB] = { TTYCODE_STRING, "cub" },
[TTYC_CUB1] = { TTYCODE_STRING, "cub1" },
[TTYC_CUD] = { TTYCODE_STRING, "cud" },
[TTYC_CUD1] = { TTYCODE_STRING, "cud1" },
[TTYC_CUF] = { TTYCODE_STRING, "cuf" },
[TTYC_CUF1] = { TTYCODE_STRING, "cuf1" },
[TTYC_CUP] = { TTYCODE_STRING, "cup" },
[TTYC_CUU] = { TTYCODE_STRING, "cuu" },
[TTYC_CUU1] = { TTYCODE_STRING, "cuu1" },
[TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" },
[TTYC_DCH] = { TTYCODE_STRING, "dch" },
[TTYC_DCH1] = { TTYCODE_STRING, "dch1" },
[TTYC_DIM] = { TTYCODE_STRING, "dim" },
[TTYC_DL] = { TTYCODE_STRING, "dl" },
[TTYC_DL1] = { TTYCODE_STRING, "dl1" },
[TTYC_E3] = { TTYCODE_STRING, "E3" },
[TTYC_ECH] = { TTYCODE_STRING, "ech" },
[TTYC_EL] = { TTYCODE_STRING, "el" },
[TTYC_EL1] = { TTYCODE_STRING, "el1" },
[TTYC_ENACS] = { TTYCODE_STRING, "enacs" },
[TTYC_FSL] = { TTYCODE_STRING, "fsl" },
[TTYC_HOME] = { TTYCODE_STRING, "home" },
[TTYC_HPA] = { TTYCODE_STRING, "hpa" },
[TTYC_ICH] = { TTYCODE_STRING, "ich" },
[TTYC_ICH1] = { TTYCODE_STRING, "ich1" },
[TTYC_IL] = { TTYCODE_STRING, "il" },
[TTYC_IL1] = { TTYCODE_STRING, "il1" },
[TTYC_INVIS] = { TTYCODE_STRING, "invis" },
[TTYC_IS1] = { TTYCODE_STRING, "is1" },
[TTYC_IS2] = { TTYCODE_STRING, "is2" },
[TTYC_IS3] = { TTYCODE_STRING, "is3" },
[TTYC_KCBT] = { TTYCODE_STRING, "kcbt" },
[TTYC_KCUB1] = { TTYCODE_STRING, "kcub1" },
[TTYC_KCUD1] = { TTYCODE_STRING, "kcud1" },
[TTYC_KCUF1] = { TTYCODE_STRING, "kcuf1" },
[TTYC_KCUU1] = { TTYCODE_STRING, "kcuu1" },
[TTYC_KDC2] = { TTYCODE_STRING, "kDC" },
[TTYC_KDC3] = { TTYCODE_STRING, "kDC3" },
[TTYC_KDC4] = { TTYCODE_STRING, "kDC4" },
[TTYC_KDC5] = { TTYCODE_STRING, "kDC5" },
[TTYC_KDC6] = { TTYCODE_STRING, "kDC6" },
[TTYC_KDC7] = { TTYCODE_STRING, "kDC7" },
[TTYC_KDCH1] = { TTYCODE_STRING, "kdch1" },
[TTYC_KDN2] = { TTYCODE_STRING, "kDN" },
[TTYC_KDN3] = { TTYCODE_STRING, "kDN3" },
[TTYC_KDN4] = { TTYCODE_STRING, "kDN4" },
[TTYC_KDN5] = { TTYCODE_STRING, "kDN5" },
[TTYC_KDN6] = { TTYCODE_STRING, "kDN6" },
[TTYC_KDN7] = { TTYCODE_STRING, "kDN7" },
[TTYC_KEND] = { TTYCODE_STRING, "kend" },
[TTYC_KEND2] = { TTYCODE_STRING, "kEND" },
[TTYC_KEND3] = { TTYCODE_STRING, "kEND3" },
[TTYC_KEND4] = { TTYCODE_STRING, "kEND4" },
[TTYC_KEND5] = { TTYCODE_STRING, "kEND5" },
[TTYC_KEND6] = { TTYCODE_STRING, "kEND6" },
[TTYC_KEND7] = { TTYCODE_STRING, "kEND7" },
[TTYC_KF1] = { TTYCODE_STRING, "kf1" },
[TTYC_KF10] = { TTYCODE_STRING, "kf10" },
[TTYC_KF11] = { TTYCODE_STRING, "kf11" },
[TTYC_KF12] = { TTYCODE_STRING, "kf12" },
[TTYC_KF13] = { TTYCODE_STRING, "kf13" },
[TTYC_KF14] = { TTYCODE_STRING, "kf14" },
[TTYC_KF15] = { TTYCODE_STRING, "kf15" },
[TTYC_KF16] = { TTYCODE_STRING, "kf16" },
[TTYC_KF17] = { TTYCODE_STRING, "kf17" },
[TTYC_KF18] = { TTYCODE_STRING, "kf18" },
[TTYC_KF19] = { TTYCODE_STRING, "kf19" },
[TTYC_KF2] = { TTYCODE_STRING, "kf2" },
[TTYC_KF20] = { TTYCODE_STRING, "kf20" },
[TTYC_KF21] = { TTYCODE_STRING, "kf21" },
[TTYC_KF22] = { TTYCODE_STRING, "kf22" },
[TTYC_KF23] = { TTYCODE_STRING, "kf23" },
[TTYC_KF24] = { TTYCODE_STRING, "kf24" },
[TTYC_KF25] = { TTYCODE_STRING, "kf25" },
[TTYC_KF26] = { TTYCODE_STRING, "kf26" },
[TTYC_KF27] = { TTYCODE_STRING, "kf27" },
[TTYC_KF28] = { TTYCODE_STRING, "kf28" },
[TTYC_KF29] = { TTYCODE_STRING, "kf29" },
[TTYC_KF3] = { TTYCODE_STRING, "kf3" },
[TTYC_KF30] = { TTYCODE_STRING, "kf30" },
[TTYC_KF31] = { TTYCODE_STRING, "kf31" },
[TTYC_KF32] = { TTYCODE_STRING, "kf32" },
[TTYC_KF33] = { TTYCODE_STRING, "kf33" },
[TTYC_KF34] = { TTYCODE_STRING, "kf34" },
[TTYC_KF35] = { TTYCODE_STRING, "kf35" },
[TTYC_KF36] = { TTYCODE_STRING, "kf36" },
[TTYC_KF37] = { TTYCODE_STRING, "kf37" },
[TTYC_KF38] = { TTYCODE_STRING, "kf38" },
[TTYC_KF39] = { TTYCODE_STRING, "kf39" },
[TTYC_KF4] = { TTYCODE_STRING, "kf4" },
[TTYC_KF40] = { TTYCODE_STRING, "kf40" },
[TTYC_KF41] = { TTYCODE_STRING, "kf41" },
[TTYC_KF42] = { TTYCODE_STRING, "kf42" },
[TTYC_KF43] = { TTYCODE_STRING, "kf43" },
[TTYC_KF44] = { TTYCODE_STRING, "kf44" },
[TTYC_KF45] = { TTYCODE_STRING, "kf45" },
[TTYC_KF46] = { TTYCODE_STRING, "kf46" },
[TTYC_KF47] = { TTYCODE_STRING, "kf47" },
[TTYC_KF48] = { TTYCODE_STRING, "kf48" },
[TTYC_KF49] = { TTYCODE_STRING, "kf49" },
[TTYC_KF5] = { TTYCODE_STRING, "kf5" },
[TTYC_KF50] = { TTYCODE_STRING, "kf50" },
[TTYC_KF51] = { TTYCODE_STRING, "kf51" },
[TTYC_KF52] = { TTYCODE_STRING, "kf52" },
[TTYC_KF53] = { TTYCODE_STRING, "kf53" },
[TTYC_KF54] = { TTYCODE_STRING, "kf54" },
[TTYC_KF55] = { TTYCODE_STRING, "kf55" },
[TTYC_KF56] = { TTYCODE_STRING, "kf56" },
[TTYC_KF57] = { TTYCODE_STRING, "kf57" },
[TTYC_KF58] = { TTYCODE_STRING, "kf58" },
[TTYC_KF59] = { TTYCODE_STRING, "kf59" },
[TTYC_KF6] = { TTYCODE_STRING, "kf6" },
[TTYC_KF60] = { TTYCODE_STRING, "kf60" },
[TTYC_KF61] = { TTYCODE_STRING, "kf61" },
[TTYC_KF62] = { TTYCODE_STRING, "kf62" },
[TTYC_KF63] = { TTYCODE_STRING, "kf63" },
[TTYC_KF7] = { TTYCODE_STRING, "kf7" },
[TTYC_KF8] = { TTYCODE_STRING, "kf8" },
[TTYC_KF9] = { TTYCODE_STRING, "kf9" },
[TTYC_KHOM2] = { TTYCODE_STRING, "kHOM" },
[TTYC_KHOM3] = { TTYCODE_STRING, "kHOM3" },
[TTYC_KHOM4] = { TTYCODE_STRING, "kHOM4" },
[TTYC_KHOM5] = { TTYCODE_STRING, "kHOM5" },
[TTYC_KHOM6] = { TTYCODE_STRING, "kHOM6" },
[TTYC_KHOM7] = { TTYCODE_STRING, "kHOM7" },
[TTYC_KHOME] = { TTYCODE_STRING, "khome" },
[TTYC_KIC2] = { TTYCODE_STRING, "kIC" },
[TTYC_KIC3] = { TTYCODE_STRING, "kIC3" },
[TTYC_KIC4] = { TTYCODE_STRING, "kIC4" },
[TTYC_KIC5] = { TTYCODE_STRING, "kIC5" },
[TTYC_KIC6] = { TTYCODE_STRING, "kIC6" },
[TTYC_KIC7] = { TTYCODE_STRING, "kIC7" },
[TTYC_KICH1] = { TTYCODE_STRING, "kich1" },
[TTYC_KLFT2] = { TTYCODE_STRING, "kLFT" },
[TTYC_KLFT3] = { TTYCODE_STRING, "kLFT3" },
[TTYC_KLFT4] = { TTYCODE_STRING, "kLFT4" },
[TTYC_KLFT5] = { TTYCODE_STRING, "kLFT5" },
[TTYC_KLFT6] = { TTYCODE_STRING, "kLFT6" },
[TTYC_KLFT7] = { TTYCODE_STRING, "kLFT7" },
[TTYC_KMOUS] = { TTYCODE_STRING, "kmous" },
[TTYC_KNP] = { TTYCODE_STRING, "knp" },
[TTYC_KNXT2] = { TTYCODE_STRING, "kNXT" },
[TTYC_KNXT3] = { TTYCODE_STRING, "kNXT3" },
[TTYC_KNXT4] = { TTYCODE_STRING, "kNXT4" },
[TTYC_KNXT5] = { TTYCODE_STRING, "kNXT5" },
[TTYC_KNXT6] = { TTYCODE_STRING, "kNXT6" },
[TTYC_KNXT7] = { TTYCODE_STRING, "kNXT7" },
[TTYC_KPP] = { TTYCODE_STRING, "kpp" },
[TTYC_KPRV2] = { TTYCODE_STRING, "kPRV" },
[TTYC_KPRV3] = { TTYCODE_STRING, "kPRV3" },
[TTYC_KPRV4] = { TTYCODE_STRING, "kPRV4" },
[TTYC_KPRV5] = { TTYCODE_STRING, "kPRV5" },
[TTYC_KPRV6] = { TTYCODE_STRING, "kPRV6" },
[TTYC_KPRV7] = { TTYCODE_STRING, "kPRV7" },
[TTYC_KRIT2] = { TTYCODE_STRING, "kRIT" },
[TTYC_KRIT3] = { TTYCODE_STRING, "kRIT3" },
[TTYC_KRIT4] = { TTYCODE_STRING, "kRIT4" },
[TTYC_KRIT5] = { TTYCODE_STRING, "kRIT5" },
[TTYC_KRIT6] = { TTYCODE_STRING, "kRIT6" },
[TTYC_KRIT7] = { TTYCODE_STRING, "kRIT7" },
[TTYC_KUP2] = { TTYCODE_STRING, "kUP" },
[TTYC_KUP3] = { TTYCODE_STRING, "kUP3" },
[TTYC_KUP4] = { TTYCODE_STRING, "kUP4" },
[TTYC_KUP5] = { TTYCODE_STRING, "kUP5" },
[TTYC_KUP6] = { TTYCODE_STRING, "kUP6" },
[TTYC_KUP7] = { TTYCODE_STRING, "kUP7" },
[TTYC_MS] = { TTYCODE_STRING, "Ms" },
[TTYC_OP] = { TTYCODE_STRING, "op" },
[TTYC_REV] = { TTYCODE_STRING, "rev" },
[TTYC_RI] = { TTYCODE_STRING, "ri" },
[TTYC_RMACS] = { TTYCODE_STRING, "rmacs" },
[TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" },
[TTYC_RMKX] = { TTYCODE_STRING, "rmkx" },
[TTYC_SE] = { TTYCODE_STRING, "Se" },
[TTYC_SETAB] = { TTYCODE_STRING, "setab" },
[TTYC_SETAF] = { TTYCODE_STRING, "setaf" },
[TTYC_SGR0] = { TTYCODE_STRING, "sgr0" },
[TTYC_SITM] = { TTYCODE_STRING, "sitm" },
[TTYC_SMACS] = { TTYCODE_STRING, "smacs" },
[TTYC_SMCUP] = { TTYCODE_STRING, "smcup" },
[TTYC_SMKX] = { TTYCODE_STRING, "smkx" },
[TTYC_SMSO] = { TTYCODE_STRING, "smso" },
[TTYC_SMUL] = { TTYCODE_STRING, "smul" },
[TTYC_SS] = { TTYCODE_STRING, "Ss" },
[TTYC_TC] = { TTYCODE_FLAG, "Tc" },
[TTYC_TSL] = { TTYCODE_STRING, "tsl" },
[TTYC_VPA] = { TTYCODE_STRING, "vpa" },
[TTYC_XENL] = { TTYCODE_FLAG, "xenl" },
[TTYC_XT] = { TTYCODE_FLAG, "XT" },
};
u_int
tty_term_ncodes(void)
{
return (nitems(tty_term_codes));
}
static char *
tty_term_strip(const char *s)
{
const char *ptr;
static char buf[BUFSIZ];
size_t len;
/* Ignore strings with no padding. */
if (strchr(s, '$') == NULL)
return (xstrdup(s));
len = 0;
for (ptr = s; *ptr != '\0'; ptr++) {
if (*ptr == '$' && *(ptr + 1) == '<') {
while (*ptr != '\0' && *ptr != '>')
ptr++;
if (*ptr == '>')
ptr++;
}
buf[len++] = *ptr;
if (len == (sizeof buf) - 1)
break;
}
buf[len] = '\0';
return (xstrdup(buf));
}
static void
tty_term_override(struct tty_term *term, const char *overrides)
{
const struct tty_term_code_entry *ent;
struct tty_code *code;
char *termnext, *termstr;
char *entnext, *entstr;
char *s, *ptr, *val;
const char *errstr;
u_int i;
int n, removeflag;
s = xstrdup(overrides);
termnext = s;
while ((termstr = strsep(&termnext, ",")) != NULL) {
entnext = termstr;
entstr = strsep(&entnext, ":");
if (entstr == NULL || entnext == NULL)
continue;
if (fnmatch(entstr, term->name, 0) != 0)
continue;
while ((entstr = strsep(&entnext, ":")) != NULL) {
if (*entstr == '\0')
continue;
val = NULL;
removeflag = 0;
if ((ptr = strchr(entstr, '=')) != NULL) {
*ptr++ = '\0';
val = xstrdup(ptr);
if (strunvis(val, ptr) == -1) {
free(val);
val = xstrdup(ptr);
}
} else if (entstr[strlen(entstr) - 1] == '@') {
entstr[strlen(entstr) - 1] = '\0';
removeflag = 1;
} else
val = xstrdup("");
log_debug("%s override: %s %s",
term->name, entstr, removeflag ? "@" : val);
for (i = 0; i < tty_term_ncodes(); i++) {
ent = &tty_term_codes[i];
if (strcmp(entstr, ent->name) != 0)
continue;
code = &term->codes[i];
if (removeflag) {
code->type = TTYCODE_NONE;
continue;
}
switch (ent->type) {
case TTYCODE_NONE:
break;
case TTYCODE_STRING:
if (code->type == TTYCODE_STRING)
free(code->value.string);
code->value.string = xstrdup(val);
code->type = ent->type;
break;
case TTYCODE_NUMBER:
n = strtonum(val, 0, INT_MAX, &errstr);
if (errstr != NULL)
break;
code->value.number = n;
code->type = ent->type;
break;
case TTYCODE_FLAG:
code->value.flag = 1;
code->type = ent->type;
break;
}
}
free(val);
}
}
free(s);
}
struct tty_term *
tty_term_find(char *name, int fd, char **cause)
{
struct tty_term *term;
const struct tty_term_code_entry *ent;
struct tty_code *code;
u_int i;
int n, error;
char *s;
const char *acs;
LIST_FOREACH(term, &tty_terms, entry) {
if (strcmp(term->name, name) == 0) {
term->references++;
return (term);
}
}
log_debug("new term: %s", name);
term = xmalloc(sizeof *term);
term->name = xstrdup(name);
term->references = 1;
term->flags = 0;
term->codes = xcalloc (tty_term_ncodes(), sizeof *term->codes);
LIST_INSERT_HEAD(&tty_terms, term, entry);
/* Set up curses terminal. */
if (setupterm(name, fd, &error) != OK) {
switch (error) {
case 1:
xasprintf(cause, "can't use hardcopy terminal: %s",
name);
break;
case 0:
xasprintf(cause, "missing or unsuitable terminal: %s",
name);
break;
case -1:
xasprintf(cause, "can't find terminfo database");
break;
default:
xasprintf(cause, "unknown error");
break;
}
goto error;
}
/* Fill in codes. */
for (i = 0; i < tty_term_ncodes(); i++) {
ent = &tty_term_codes[i];
code = &term->codes[i];
code->type = TTYCODE_NONE;
switch (ent->type) {
case TTYCODE_NONE:
break;
case TTYCODE_STRING:
s = tigetstr((char *) ent->name);
if (s == NULL || s == (char *) -1)
break;
code->type = TTYCODE_STRING;
code->value.string = tty_term_strip(s);
break;
case TTYCODE_NUMBER:
n = tigetnum((char *) ent->name);
if (n == -1 || n == -2)
break;
code->type = TTYCODE_NUMBER;
code->value.number = n;
break;
case TTYCODE_FLAG:
n = tigetflag((char *) ent->name);
if (n == -1)
break;
code->type = TTYCODE_FLAG;
code->value.flag = n;
break;
}
}
/* Apply terminal overrides. */
s = options_get_string(global_options, "terminal-overrides");
tty_term_override(term, s);
/* Delete curses data. */
del_curterm(cur_term);
/* These are always required. */
if (!tty_term_has(term, TTYC_CLEAR)) {
xasprintf(cause, "terminal does not support clear");
goto error;
}
if (!tty_term_has(term, TTYC_CUP)) {
xasprintf(cause, "terminal does not support cup");
goto error;
}
/* These can be emulated so one of the two is required. */
if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
xasprintf(cause, "terminal does not support cud1 or cud");
goto error;
}
/* Figure out if we have 256. */
if (tty_term_number(term, TTYC_COLORS) == 256)
term->flags |= TERM_256COLOURS;
/*
* Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
* rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
*
* This is irritating, most notably because it is impossible to write
* to the very bottom-right of the screen without scrolling.
*
* Flag the terminal here and apply some workarounds in other places to
* do the best possible.
*/
if (!tty_term_flag(term, TTYC_XENL))
term->flags |= TERM_EARLYWRAP;
/* Generate ACS table. If none is present, use nearest ASCII. */
memset(term->acs, 0, sizeof term->acs);
if (tty_term_has(term, TTYC_ACSC))
acs = tty_term_string(term, TTYC_ACSC);
else
acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
term->acs[(u_char) acs[0]][0] = acs[1];
/* On terminals with xterm titles (XT), fill in tsl and fsl. */
if (tty_term_flag(term, TTYC_XT) &&
!tty_term_has(term, TTYC_TSL) &&
!tty_term_has(term, TTYC_FSL)) {
code = &term->codes[TTYC_TSL];
code->value.string = xstrdup("\033]0;");
code->type = TTYCODE_STRING;
code = &term->codes[TTYC_FSL];
code->value.string = xstrdup("\007");
code->type = TTYCODE_STRING;
}
return (term);
error:
tty_term_free(term);
return (NULL);
}
void
tty_term_free(struct tty_term *term)
{
u_int i;
if (--term->references != 0)
return;
LIST_REMOVE(term, entry);
for (i = 0; i < tty_term_ncodes(); i++) {
if (term->codes[i].type == TTYCODE_STRING)
free(term->codes[i].value.string);
}
free(term->codes);
free(term->name);
free(term);
}
int
tty_term_has(struct tty_term *term, enum tty_code_code code)
{
return (term->codes[code].type != TTYCODE_NONE);
}
const char *
tty_term_string(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return ("");
if (term->codes[code].type != TTYCODE_STRING)
fatalx("not a string: %d", code);
return (term->codes[code].value.string);
}
const char *
tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
{
return (tparm((char *) tty_term_string(term, code), a));
}
const char *
tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
{
return (tparm((char *) tty_term_string(term, code), a, b));
}
const char *
tty_term_ptr1(struct tty_term *term, enum tty_code_code code, const void *a)
{
return (tparm((char *) tty_term_string(term, code), a));
}
const char *
tty_term_ptr2(struct tty_term *term, enum tty_code_code code, const void *a,
const void *b)
{
return (tparm((char *) tty_term_string(term, code), a, b));
}
int
tty_term_number(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return (0);
if (term->codes[code].type != TTYCODE_NUMBER)
fatalx("not a number: %d", code);
return (term->codes[code].value.number);
}
int
tty_term_flag(struct tty_term *term, enum tty_code_code code)
{
if (!tty_term_has(term, code))
return (0);
if (term->codes[code].type != TTYCODE_FLAG)
fatalx("not a flag: %d", code);
return (term->codes[code].value.flag);
}
const char *
tty_term_describe(struct tty_term *term, enum tty_code_code code)
{
static char s[256];
char out[128];
switch (term->codes[code].type) {
case TTYCODE_NONE:
xsnprintf(s, sizeof s, "%4u: %s: [missing]",
code, tty_term_codes[code].name);
break;
case TTYCODE_STRING:
strnvis(out, term->codes[code].value.string, sizeof out,
VIS_OCTAL|VIS_TAB|VIS_NL);
xsnprintf(s, sizeof s, "%4u: %s: (string) %s",
code, tty_term_codes[code].name,
out);
break;
case TTYCODE_NUMBER:
xsnprintf(s, sizeof s, "%4u: %s: (number) %d",
code, tty_term_codes[code].name,
term->codes[code].value.number);
break;
case TTYCODE_FLAG:
xsnprintf(s, sizeof s, "%4u: %s: (flag) %s",
code, tty_term_codes[code].name,
term->codes[code].value.flag ? "true" : "false");
break;
}
return (s);
}
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