diff options
Diffstat (limited to '')
| -rw-r--r-- | tty-term.c | 844 |
1 files changed, 844 insertions, 0 deletions
diff --git a/tty-term.c b/tty-term.c new file mode 100644 index 0000000..fdf0c4f --- /dev/null +++ b/tty-term.c @@ -0,0 +1,844 @@ +/* $OpenBSD$ */ + +/* + * 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> + +#if defined(HAVE_CURSES_H) +#include <curses.h> +#elif defined(HAVE_NCURSES_H) +#include <ncurses.h> +#endif +#include <fnmatch.h> +#include <stdlib.h> +#include <string.h> +#include <term.h> + +#include "tmux.h" + +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_AM] = { TTYCODE_FLAG, "am" }, + [TTYC_AX] = { TTYCODE_FLAG, "AX" }, + [TTYC_BCE] = { TTYCODE_FLAG, "bce" }, + [TTYC_BEL] = { TTYCODE_STRING, "bel" }, + [TTYC_BIDI] = { TTYCODE_STRING, "Bidi" }, + [TTYC_BLINK] = { TTYCODE_STRING, "blink" }, + [TTYC_BOLD] = { TTYCODE_STRING, "bold" }, + [TTYC_CIVIS] = { TTYCODE_STRING, "civis" }, + [TTYC_CLEAR] = { TTYCODE_STRING, "clear" }, + [TTYC_CLMG] = { TTYCODE_STRING, "Clmg" }, + [TTYC_CMG] = { TTYCODE_STRING, "Cmg" }, + [TTYC_CNORM] = { TTYCODE_STRING, "cnorm" }, + [TTYC_COLORS] = { TTYCODE_NUMBER, "colors" }, + [TTYC_CR] = { TTYCODE_STRING, "Cr" }, + [TTYC_CSR] = { TTYCODE_STRING, "csr" }, + [TTYC_CS] = { TTYCODE_STRING, "Cs" }, + [TTYC_CUB1] = { TTYCODE_STRING, "cub1" }, + [TTYC_CUB] = { TTYCODE_STRING, "cub" }, + [TTYC_CUD1] = { TTYCODE_STRING, "cud1" }, + [TTYC_CUD] = { TTYCODE_STRING, "cud" }, + [TTYC_CUF1] = { TTYCODE_STRING, "cuf1" }, + [TTYC_CUF] = { TTYCODE_STRING, "cuf" }, + [TTYC_CUP] = { TTYCODE_STRING, "cup" }, + [TTYC_CUU1] = { TTYCODE_STRING, "cuu1" }, + [TTYC_CUU] = { TTYCODE_STRING, "cuu" }, + [TTYC_CVVIS] = { TTYCODE_STRING, "cvvis" }, + [TTYC_DCH1] = { TTYCODE_STRING, "dch1" }, + [TTYC_DCH] = { TTYCODE_STRING, "dch" }, + [TTYC_DIM] = { TTYCODE_STRING, "dim" }, + [TTYC_DL1] = { TTYCODE_STRING, "dl1" }, + [TTYC_DL] = { TTYCODE_STRING, "dl" }, + [TTYC_DSEKS] = { TTYCODE_STRING, "Dseks" }, + [TTYC_DSFCS] = { TTYCODE_STRING, "Dsfcs" }, + [TTYC_DSBP] = { TTYCODE_STRING, "Dsbp" }, + [TTYC_DSMG] = { TTYCODE_STRING, "Dsmg" }, + [TTYC_E3] = { TTYCODE_STRING, "E3" }, + [TTYC_ECH] = { TTYCODE_STRING, "ech" }, + [TTYC_ED] = { TTYCODE_STRING, "ed" }, + [TTYC_EL1] = { TTYCODE_STRING, "el1" }, + [TTYC_EL] = { TTYCODE_STRING, "el" }, + [TTYC_ENACS] = { TTYCODE_STRING, "enacs" }, + [TTYC_ENBP] = { TTYCODE_STRING, "Enbp" }, + [TTYC_ENEKS] = { TTYCODE_STRING, "Eneks" }, + [TTYC_ENFCS] = { TTYCODE_STRING, "Enfcs" }, + [TTYC_ENMG] = { TTYCODE_STRING, "Enmg" }, + [TTYC_FSL] = { TTYCODE_STRING, "fsl" }, + [TTYC_HOME] = { TTYCODE_STRING, "home" }, + [TTYC_HPA] = { TTYCODE_STRING, "hpa" }, + [TTYC_ICH1] = { TTYCODE_STRING, "ich1" }, + [TTYC_ICH] = { TTYCODE_STRING, "ich" }, + [TTYC_IL1] = { TTYCODE_STRING, "il1" }, + [TTYC_IL] = { TTYCODE_STRING, "il" }, + [TTYC_INDN] = { TTYCODE_STRING, "indn" }, + [TTYC_INVIS] = { TTYCODE_STRING, "invis" }, + [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" }, /* not kDN2 */ + [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_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_KEND] = { TTYCODE_STRING, "kend" }, + [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_KF1] = { TTYCODE_STRING, "kf1" }, + [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_KF2] = { TTYCODE_STRING, "kf2" }, + [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_KF3] = { TTYCODE_STRING, "kf3" }, + [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_KF4] = { TTYCODE_STRING, "kf4" }, + [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_KF5] = { TTYCODE_STRING, "kf5" }, + [TTYC_KF60] = { TTYCODE_STRING, "kf60" }, + [TTYC_KF61] = { TTYCODE_STRING, "kf61" }, + [TTYC_KF62] = { TTYCODE_STRING, "kf62" }, + [TTYC_KF63] = { TTYCODE_STRING, "kf63" }, + [TTYC_KF6] = { TTYCODE_STRING, "kf6" }, + [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_KIND] = { TTYCODE_STRING, "kind" }, + [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_KRI] = { TTYCODE_STRING, "kri" }, + [TTYC_KUP2] = { TTYCODE_STRING, "kUP" }, /* not kUP2 */ + [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_OL] = { TTYCODE_STRING, "ol" }, + [TTYC_OP] = { TTYCODE_STRING, "op" }, + [TTYC_RECT] = { TTYCODE_STRING, "Rect" }, + [TTYC_REV] = { TTYCODE_STRING, "rev" }, + [TTYC_RGB] = { TTYCODE_FLAG, "RGB" }, + [TTYC_RIN] = { TTYCODE_STRING, "rin" }, + [TTYC_RI] = { TTYCODE_STRING, "ri" }, + [TTYC_RMACS] = { TTYCODE_STRING, "rmacs" }, + [TTYC_RMCUP] = { TTYCODE_STRING, "rmcup" }, + [TTYC_RMKX] = { TTYCODE_STRING, "rmkx" }, + [TTYC_SETAB] = { TTYCODE_STRING, "setab" }, + [TTYC_SETAF] = { TTYCODE_STRING, "setaf" }, + [TTYC_SETAL] = { TTYCODE_STRING, "setal" }, + [TTYC_SETRGBB] = { TTYCODE_STRING, "setrgbb" }, + [TTYC_SETRGBF] = { TTYCODE_STRING, "setrgbf" }, + [TTYC_SETULC] = { TTYCODE_STRING, "Setulc" }, + [TTYC_SE] = { TTYCODE_STRING, "Se" }, + [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_SMOL] = { TTYCODE_STRING, "Smol" }, + [TTYC_SMSO] = { TTYCODE_STRING, "smso" }, + [TTYC_SMULX] = { TTYCODE_STRING, "Smulx" }, + [TTYC_SMUL] = { TTYCODE_STRING, "smul" }, + [TTYC_SMXX] = { TTYCODE_STRING, "smxx" }, + [TTYC_SS] = { TTYCODE_STRING, "Ss" }, + [TTYC_SWD] = { TTYCODE_STRING, "Swd" }, + [TTYC_SYNC] = { TTYCODE_STRING, "Sync" }, + [TTYC_TC] = { TTYCODE_FLAG, "Tc" }, + [TTYC_TSL] = { TTYCODE_STRING, "tsl" }, + [TTYC_U8] = { TTYCODE_NUMBER, "U8" }, + [TTYC_VPA] = { TTYCODE_STRING, "vpa" }, + [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[8192]; + 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++; + if (*ptr == '\0') + break; + } + + buf[len++] = *ptr; + if (len == (sizeof buf) - 1) + break; + } + buf[len] = '\0'; + + return (xstrdup(buf)); +} + +static char * +tty_term_override_next(const char *s, size_t *offset) +{ + static char value[8192]; + size_t n = 0, at = *offset; + + if (s[at] == '\0') + return (NULL); + + while (s[at] != '\0') { + if (s[at] == ':') { + if (s[at + 1] == ':') { + value[n++] = ':'; + at += 2; + } else + break; + } else { + value[n++] = s[at]; + at++; + } + if (n == (sizeof value) - 1) + return (NULL); + } + if (s[at] != '\0') + *offset = at + 1; + else + *offset = at; + value[n] = '\0'; + return (value); +} + +void +tty_term_apply(struct tty_term *term, const char *capabilities, int quiet) +{ + const struct tty_term_code_entry *ent; + struct tty_code *code; + size_t offset = 0; + char *cp, *value, *s; + const char *errstr, *name = term->name; + u_int i; + int n, remove; + + while ((s = tty_term_override_next(capabilities, &offset)) != NULL) { + if (*s == '\0') + continue; + value = NULL; + + remove = 0; + if ((cp = strchr(s, '=')) != NULL) { + *cp++ = '\0'; + value = xstrdup(cp); + if (strunvis(value, cp) == -1) { + free(value); + value = xstrdup(cp); + } + } else if (s[strlen(s) - 1] == '@') { + s[strlen(s) - 1] = '\0'; + remove = 1; + } else + value = xstrdup(""); + + if (!quiet) { + if (remove) + log_debug("%s override: %s@", name, s); + else if (*value == '\0') + log_debug("%s override: %s", name, s); + else + log_debug("%s override: %s=%s", name, s, value); + } + + for (i = 0; i < tty_term_ncodes(); i++) { + ent = &tty_term_codes[i]; + if (strcmp(s, ent->name) != 0) + continue; + code = &term->codes[i]; + + if (remove) { + 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(value); + code->type = ent->type; + break; + case TTYCODE_NUMBER: + n = strtonum(value, 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(value); + } +} + +void +tty_term_apply_overrides(struct tty_term *term) +{ + struct options_entry *o; + struct options_array_item *a; + union options_value *ov; + const char *s, *acs; + size_t offset; + char *first; + + /* Update capabilities from the option. */ + o = options_get_only(global_options, "terminal-overrides"); + a = options_array_first(o); + while (a != NULL) { + ov = options_array_item_value(a); + s = ov->string; + + offset = 0; + first = tty_term_override_next(s, &offset); + if (first != NULL && fnmatch(first, term->name, 0) == 0) + tty_term_apply(term, s + offset, 0); + a = options_array_next(a); + } + + /* Update the RGB flag if the terminal has RGB colours. */ + if (tty_term_has(term, TTYC_SETRGBF) && + tty_term_has(term, TTYC_SETRGBB)) + term->flags |= TERM_RGBCOLOURS; + else + term->flags &= ~TERM_RGBCOLOURS; + log_debug("RGBCOLOURS flag is %d", !!(term->flags & TERM_RGBCOLOURS)); + + /* + * Set or clear the DECSLRM flag if the terminal has the margin + * capabilities. + */ + if (tty_term_has(term, TTYC_CMG) && tty_term_has(term, TTYC_CLMG)) + term->flags |= TERM_DECSLRM; + else + term->flags &= ~TERM_DECSLRM; + log_debug("DECSLRM flag is %d", !!(term->flags & TERM_DECSLRM)); + + /* + * Set or clear the DECFRA flag if the terminal has the rectangle + * capability. + */ + if (tty_term_has(term, TTYC_RECT)) + term->flags |= TERM_DECFRA; + else + term->flags &= ~TERM_DECFRA; + log_debug("DECFRA flag is %d", !!(term->flags & TERM_DECFRA)); + + /* + * Terminals without am (auto right margin) wrap at at $COLUMNS - 1 + * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1). + * + * Terminals without xenl (eat newline glitch) ignore a newline beyond + * the right edge of the terminal, but tmux doesn't care about this - + * it always uses absolute only moves the cursor with a newline when + * also sending a linefeed. + * + * This is irritating, most notably because it is painful 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_AM)) + term->flags |= TERM_NOAM; + else + term->flags &= ~TERM_NOAM; + log_debug("NOAM flag is %d", !!(term->flags & TERM_NOAM)); + + /* 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]; +} + +struct tty_term * +tty_term_create(struct tty *tty, char *name, char **caps, u_int ncaps, + int *feat, char **cause) +{ + struct tty_term *term; + const struct tty_term_code_entry *ent; + struct tty_code *code; + struct options_entry *o; + struct options_array_item *a; + union options_value *ov; + u_int i, j; + const char *s, *value; + size_t offset, namelen; + char *first; + + log_debug("adding term %s", name); + + term = xcalloc(1, sizeof *term); + term->tty = tty; + term->name = xstrdup(name); + term->codes = xcalloc(tty_term_ncodes(), sizeof *term->codes); + LIST_INSERT_HEAD(&tty_terms, term, entry); + + /* Fill in codes. */ + for (i = 0; i < ncaps; i++) { + namelen = strcspn(caps[i], "="); + if (namelen == 0) + continue; + value = caps[i] + namelen + 1; + + for (j = 0; j < tty_term_ncodes(); j++) { + ent = &tty_term_codes[j]; + if (strncmp(ent->name, caps[i], namelen) != 0) + continue; + if (ent->name[namelen] != '\0') + continue; + + code = &term->codes[j]; + code->type = TTYCODE_NONE; + switch (ent->type) { + case TTYCODE_NONE: + break; + case TTYCODE_STRING: + code->type = TTYCODE_STRING; + code->value.string = tty_term_strip(value); + break; + case TTYCODE_NUMBER: + code->type = TTYCODE_NUMBER; + code->value.number = atoi(value); + break; + case TTYCODE_FLAG: + code->type = TTYCODE_FLAG; + code->value.flag = (*value == '1'); + break; + } + } + } + + /* Apply terminal features. */ + o = options_get_only(global_options, "terminal-features"); + a = options_array_first(o); + while (a != NULL) { + ov = options_array_item_value(a); + s = ov->string; + + offset = 0; + first = tty_term_override_next(s, &offset); + if (first != NULL && fnmatch(first, term->name, 0) == 0) + tty_add_features(feat, s + offset, ":"); + a = options_array_next(a); + } + + /* Delete curses data. */ +#if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ + (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) + del_curterm(cur_term); +#endif + + /* Apply overrides so any capabilities used for features are changed. */ + tty_term_apply_overrides(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; + } + + /* + * If TERM has XT or clear starts with CSI then it is safe to assume + * the terminal is derived from the VT100. This controls whether device + * attributes requests are sent to get more information. + * + * This is a bit of a hack but there aren't that many alternatives. + * Worst case tmux will just fall back to using whatever terminfo(5) + * says without trying to correct anything that is missing. + * + * Also add few features that VT100-like terminals should either + * support or safely ignore. + */ + s = tty_term_string(term, TTYC_CLEAR); + if (tty_term_flag(term, TTYC_XT) || strncmp(s, "\033[", 2) == 0) { + term->flags |= TERM_VT100LIKE; + tty_add_features(feat, "bpaste,focus,title", ","); + } + + /* Add RGB feature if terminal has RGB colours. */ + if ((tty_term_flag(term, TTYC_TC) || tty_term_has(term, TTYC_RGB)) && + (!tty_term_has(term, TTYC_SETRGBF) || + !tty_term_has(term, TTYC_SETRGBB))) + tty_add_features(feat, "RGB", ","); + + /* Apply the features and overrides again. */ + if (tty_apply_features(term, *feat)) + tty_term_apply_overrides(term); + + /* Log the capabilities. */ + for (i = 0; i < tty_term_ncodes(); i++) + log_debug("%s%s", name, tty_term_describe(term, i)); + + return (term); + +error: + tty_term_free(term); + return (NULL); +} + +void +tty_term_free(struct tty_term *term) +{ + u_int i; + + log_debug("removing term %s", term->name); + + for (i = 0; i < tty_term_ncodes(); i++) { + if (term->codes[i].type == TTYCODE_STRING) + free(term->codes[i].value.string); + } + free(term->codes); + + LIST_REMOVE(term, entry); + free(term->name); + free(term); +} + +int +tty_term_read_list(const char *name, int fd, char ***caps, u_int *ncaps, + char **cause) +{ + const struct tty_term_code_entry *ent; + int error, n; + u_int i; + const char *s; + char tmp[11]; + + if (setupterm((char *)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; + } + return (-1); + } + + *ncaps = 0; + *caps = NULL; + + for (i = 0; i < tty_term_ncodes(); i++) { + ent = &tty_term_codes[i]; + switch (ent->type) { + case TTYCODE_NONE: + continue; + case TTYCODE_STRING: + s = tigetstr((char *)ent->name); + if (s == NULL || s == (char *)-1) + continue; + break; + case TTYCODE_NUMBER: + n = tigetnum((char *)ent->name); + if (n == -1 || n == -2) + continue; + xsnprintf(tmp, sizeof tmp, "%d", n); + s = tmp; + break; + case TTYCODE_FLAG: + n = tigetflag((char *) ent->name); + if (n == -1) + continue; + if (n) + s = "1"; + else + s = "0"; + break; + } + *caps = xreallocarray(*caps, (*ncaps) + 1, sizeof **caps); + xasprintf(&(*caps)[*ncaps], "%s=%s", ent->name, s); + (*ncaps)++; + } + +#if !defined(NCURSES_VERSION_MAJOR) || NCURSES_VERSION_MAJOR > 5 || \ + (NCURSES_VERSION_MAJOR == 5 && NCURSES_VERSION_MINOR > 6) + del_curterm(cur_term); +#endif + return (0); +} + +void +tty_term_free_list(char **caps, u_int ncaps) +{ + u_int i; + + for (i = 0; i < ncaps; i++) + free(caps[i]); + free(caps); +} + +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, 0, 0, 0, 0, 0, 0, 0, 0)); +} + +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, 0, 0, 0, 0, 0, 0, 0)); +} + +const char * +tty_term_string3(struct tty_term *term, enum tty_code_code code, int a, int b, + int c) +{ + return (tparm((char *) tty_term_string(term, code), a, b, c, 0, 0, 0, 0, 0, 0)); +} + +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), (long)a, 0, 0, 0, 0, 0, 0, 0, 0)); +} + +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), (long)a, (long)b, 0, 0, 0, 0, 0, 0, 0)); +} + +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_CSTYLE|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); +} |