diff options
Diffstat (limited to 'usr.bin/tmux/input.c')
| -rw-r--r-- | usr.bin/tmux/input.c | 1276 |
1 files changed, 1276 insertions, 0 deletions
diff --git a/usr.bin/tmux/input.c b/usr.bin/tmux/input.c new file mode 100644 index 00000000000..2f7105fb7af --- /dev/null +++ b/usr.bin/tmux/input.c @@ -0,0 +1,1276 @@ +/* $OpenBSD: input.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */ + +/* + * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> + * + * 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 <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "tmux.h" + +#define INPUT_C0CONTROL(ch) (ch <= 0x1f) +#define INPUT_INTERMEDIATE(ch) (ch == 0xa0 || (ch >= 0x20 && ch <= 0x2f)) +#define INPUT_PARAMETER(ch) (ch >= 0x30 && ch <= 0x3f) +#define INPUT_UPPERCASE(ch) (ch >= 0x40 && ch <= 0x5f) +#define INPUT_LOWERCASE(ch) (ch >= 0x60 && ch <= 0x7e) +#define INPUT_DELETE(ch) (ch == 0x7f) +#define INPUT_C1CONTROL(ch) (ch >= 0x80 && ch <= 0x9f) +#define INPUT_G1DISPLAYABLE(ch) (ch >= 0xa1 && ch <= 0xfe) +#define INPUT_SPECIAL(ch) (ch == 0xff) + +int input_get_argument(struct input_ctx *, u_int, uint16_t *, uint16_t); +int input_new_argument(struct input_ctx *); +int input_add_argument(struct input_ctx *, u_char); + +void input_start_string(struct input_ctx *, int); +void input_abort_string(struct input_ctx *); +int input_add_string(struct input_ctx *, u_char); +char *input_get_string(struct input_ctx *); + +void input_state(struct input_ctx *, void *); + +void input_state_first(u_char, struct input_ctx *); +void input_state_escape(u_char, struct input_ctx *); +void input_state_intermediate(u_char, struct input_ctx *); +void input_state_sequence_first(u_char, struct input_ctx *); +void input_state_sequence_next(u_char, struct input_ctx *); +void input_state_sequence_intermediate(u_char, struct input_ctx *); +void input_state_string_next(u_char, struct input_ctx *); +void input_state_string_escape(u_char, struct input_ctx *); +void input_state_utf8(u_char, struct input_ctx *); + +void input_handle_character(u_char, struct input_ctx *); +void input_handle_c0_control(u_char, struct input_ctx *); +void input_handle_c1_control(u_char, struct input_ctx *); +void input_handle_private_two(u_char, struct input_ctx *); +void input_handle_standard_two(u_char, struct input_ctx *); +void input_handle_sequence(u_char, struct input_ctx *); + +void input_handle_sequence_cuu(struct input_ctx *); +void input_handle_sequence_cud(struct input_ctx *); +void input_handle_sequence_cuf(struct input_ctx *); +void input_handle_sequence_cub(struct input_ctx *); +void input_handle_sequence_dch(struct input_ctx *); +void input_handle_sequence_dl(struct input_ctx *); +void input_handle_sequence_ich(struct input_ctx *); +void input_handle_sequence_il(struct input_ctx *); +void input_handle_sequence_vpa(struct input_ctx *); +void input_handle_sequence_hpa(struct input_ctx *); +void input_handle_sequence_cup(struct input_ctx *); +void input_handle_sequence_cup(struct input_ctx *); +void input_handle_sequence_ed(struct input_ctx *); +void input_handle_sequence_el(struct input_ctx *); +void input_handle_sequence_sm(struct input_ctx *); +void input_handle_sequence_rm(struct input_ctx *); +void input_handle_sequence_decstbm(struct input_ctx *); +void input_handle_sequence_sgr(struct input_ctx *); +void input_handle_sequence_dsr(struct input_ctx *); + +int input_sequence_cmp(const void *, const void *); + +struct input_sequence_entry { + u_char ch; + void (*fn)(struct input_ctx *); +}; +const struct input_sequence_entry input_sequence_table[] = { + { '@', input_handle_sequence_ich }, + { 'A', input_handle_sequence_cuu }, + { 'B', input_handle_sequence_cud }, + { 'C', input_handle_sequence_cuf }, + { 'D', input_handle_sequence_cub }, + { 'G', input_handle_sequence_hpa }, + { 'H', input_handle_sequence_cup }, + { 'J', input_handle_sequence_ed }, + { 'K', input_handle_sequence_el }, + { 'L', input_handle_sequence_il }, + { 'M', input_handle_sequence_dl }, + { 'P', input_handle_sequence_dch }, + { 'd', input_handle_sequence_vpa }, + { 'f', input_handle_sequence_cup }, + { 'h', input_handle_sequence_sm }, + { 'l', input_handle_sequence_rm }, + { 'm', input_handle_sequence_sgr }, + { 'n', input_handle_sequence_dsr }, + { 'r', input_handle_sequence_decstbm }, +}; + +int +input_sequence_cmp(const void *a, const void *b) +{ + int ai = ((const struct input_sequence_entry *) a)->ch; + int bi = ((const struct input_sequence_entry *) b)->ch; + + return (ai - bi); +} + +int +input_new_argument(struct input_ctx *ictx) +{ + struct input_arg *arg; + + ARRAY_EXPAND(&ictx->args, 1); + + arg = &ARRAY_LAST(&ictx->args); + arg->used = 0; + + return (0); +} + +int +input_add_argument(struct input_ctx *ictx, u_char ch) +{ + struct input_arg *arg; + + if (ARRAY_LENGTH(&ictx->args) == 0) + return (0); + + arg = &ARRAY_LAST(&ictx->args); + if (arg->used > (sizeof arg->data) - 1) + return (-1); + arg->data[arg->used++] = ch; + + return (0); +} + +int +input_get_argument(struct input_ctx *ictx, u_int i, uint16_t *n, uint16_t d) +{ + struct input_arg *arg; + const char *errstr; + + *n = d; + if (i >= ARRAY_LENGTH(&ictx->args)) + return (0); + + arg = &ARRAY_ITEM(&ictx->args, i); + if (*arg->data == '\0') + return (0); + + *n = strtonum(arg->data, 0, UINT16_MAX, &errstr); + if (errstr != NULL) + return (-1); + return (0); +} + +void +input_start_string(struct input_ctx *ictx, int type) +{ + ictx->string_type = type; + ictx->string_len = 0; +} + +void +input_abort_string(struct input_ctx *ictx) +{ + if (ictx->string_buf != NULL) + xfree(ictx->string_buf); + ictx->string_buf = NULL; +} + +int +input_add_string(struct input_ctx *ictx, u_char ch) +{ + ictx->string_buf = xrealloc(ictx->string_buf, 1, ictx->string_len + 1); + ictx->string_buf[ictx->string_len++] = ch; + + if (ictx->string_len >= MAXSTRINGLEN) { + input_abort_string(ictx); + return (1); + } + + return (0); +} + +char * +input_get_string(struct input_ctx *ictx) +{ + char *s; + + if (ictx->string_buf == NULL || input_add_string(ictx, '\0') != 0) + return (xstrdup("")); + + s = ictx->string_buf; + ictx->string_buf = NULL; + return (s); +} + +void +input_state(struct input_ctx *ictx, void *state) +{ + ictx->state = state; +} + +void +input_init(struct window_pane *wp) +{ + struct input_ctx *ictx = &wp->ictx; + + ARRAY_INIT(&ictx->args); + + ictx->string_len = 0; + ictx->string_buf = NULL; + + memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell); + + memcpy(&ictx->saved_cell, &grid_default_cell, sizeof ictx->saved_cell); + ictx->saved_cx = 0; + ictx->saved_cy = 0; + + input_state(ictx, input_state_first); +} + +void +input_free(struct window_pane *wp) +{ + if (wp->ictx.string_buf != NULL) + xfree(wp->ictx.string_buf); + + ARRAY_FREE(&wp->ictx.args); +} + +void +input_parse(struct window_pane *wp) +{ + struct input_ctx *ictx = &wp->ictx; + u_char ch; + + if (BUFFER_USED(wp->in) == 0) + return; + + ictx->buf = BUFFER_OUT(wp->in); + ictx->len = BUFFER_USED(wp->in); + ictx->off = 0; + + ictx->wp = wp; + + log_debug2("entry; buffer=%zu", ictx->len); + + if (wp->mode == NULL) + screen_write_start(&ictx->ctx, wp, &wp->base); + else + screen_write_start(&ictx->ctx, NULL, &wp->base); + + if (ictx->off != ictx->len) + wp->window->flags |= WINDOW_ACTIVITY; + while (ictx->off < ictx->len) { + ch = ictx->buf[ictx->off++]; + ictx->state(ch, ictx); + } + + screen_write_stop(&ictx->ctx); + + buffer_remove(wp->in, ictx->len); +} + +void +input_state_first(u_char ch, struct input_ctx *ictx) +{ + ictx->intermediate = '\0'; + + if (INPUT_C0CONTROL(ch)) { + if (ch == 0x1b) + input_state(ictx, input_state_escape); + else + input_handle_c0_control(ch, ictx); + return; + } + +#if 0 + if (INPUT_C1CONTROL(ch)) { + ch -= 0x40; + if (ch == '[') + input_state(ictx, input_state_sequence_first); + else if (ch == ']') { + input_start_string(ictx, STRING_SYSTEM); + input_state(ictx, input_state_string_next); + } else if (ch == '_') { + input_start_string(ictx, STRING_APPLICATION); + input_state(ictx, input_state_string_next); + } else + input_handle_c1_control(ch, ictx); + return; + } +#endif + + if (INPUT_DELETE(ch)) + return; + + input_handle_character(ch, ictx); +} + +void +input_state_escape(u_char ch, struct input_ctx *ictx) +{ + /* Treat C1 control and G1 displayable as 7-bit equivalent. */ + if (INPUT_C1CONTROL(ch) || INPUT_G1DISPLAYABLE(ch)) + ch &= 0x7f; + + if (INPUT_C0CONTROL(ch)) { + input_handle_c0_control(ch, ictx); + return; + } + + if (INPUT_INTERMEDIATE(ch)) { + log_debug2(":: in1 %zu: %hhu (%c)", ictx->off, ch, ch); + ictx->intermediate = ch; + input_state(ictx, input_state_intermediate); + return; + } + + if (INPUT_PARAMETER(ch)) { + input_state(ictx, input_state_first); + input_handle_private_two(ch, ictx); + return; + } + + if (INPUT_UPPERCASE(ch)) { + if (ch == '[') + input_state(ictx, input_state_sequence_first); + else if (ch == ']') { + input_start_string(ictx, STRING_SYSTEM); + input_state(ictx, input_state_string_next); + } else if (ch == '_') { + input_start_string(ictx, STRING_APPLICATION); + input_state(ictx, input_state_string_next); + } else { + input_state(ictx, input_state_first); + input_handle_c1_control(ch, ictx); + } + return; + } + + if (INPUT_LOWERCASE(ch)) { + input_state(ictx, input_state_first); + input_handle_standard_two(ch, ictx); + return; + } + + input_state(ictx, input_state_first); +} + +void +input_state_intermediate(u_char ch, struct input_ctx *ictx) +{ + if (INPUT_INTERMEDIATE(ch)) { + /* Multiple intermediates currently ignored. */ + log_debug2(":: in2 %zu: %hhu (%c)", ictx->off, ch, ch); + return; + } + + if (INPUT_PARAMETER(ch)) { + input_state(ictx, input_state_first); + input_handle_private_two(ch, ictx); + return; + } + + if (INPUT_UPPERCASE(ch) || INPUT_LOWERCASE(ch)) { + input_state(ictx, input_state_first); + input_handle_standard_two(ch, ictx); + return; + } + + input_state(ictx, input_state_first); +} + +void +input_state_sequence_first(u_char ch, struct input_ctx *ictx) +{ + ictx->private = '\0'; + ARRAY_CLEAR(&ictx->args); + + input_state(ictx, input_state_sequence_next); + + if (INPUT_PARAMETER(ch)) { + input_new_argument(ictx); + if (ch >= 0x3c && ch <= 0x3f) { + /* Private control sequence. */ + ictx->private = ch; + return; + } + } + + /* Pass character on directly. */ + input_state_sequence_next(ch, ictx); +} + +void +input_state_sequence_next(u_char ch, struct input_ctx *ictx) +{ + if (INPUT_INTERMEDIATE(ch)) { + if (input_add_argument(ictx, '\0') != 0) + input_state(ictx, input_state_first); + else { + log_debug2(":: si1 %zu: %hhu (%c)", ictx->off, ch, ch); + input_state(ictx, input_state_sequence_intermediate); + } + return; + } + + if (INPUT_PARAMETER(ch)) { + if (ch == ';') { + if (input_add_argument(ictx, '\0') != 0) + input_state(ictx, input_state_first); + else + input_new_argument(ictx); + } else if (input_add_argument(ictx, ch) != 0) + input_state(ictx, input_state_first); + return; + } + + if (INPUT_UPPERCASE(ch) || INPUT_LOWERCASE(ch)) { + if (input_add_argument(ictx, '\0') != 0) + input_state(ictx, input_state_first); + else { + input_state(ictx, input_state_first); + input_handle_sequence(ch, ictx); + } + return; + } + + input_state(ictx, input_state_first); +} + +void +input_state_sequence_intermediate(u_char ch, struct input_ctx *ictx) +{ + if (INPUT_INTERMEDIATE(ch)) { + log_debug2(":: si2 %zu: %hhu (%c)", ictx->off, ch, ch); + return; + } + + if (INPUT_UPPERCASE(ch) || INPUT_LOWERCASE(ch)) { + input_state(ictx, input_state_first); + input_handle_sequence(ch, ictx); + return; + } + + input_state(ictx, input_state_first); +} + +void +input_state_string_next(u_char ch, struct input_ctx *ictx) +{ + if (ch == 0x1b) { + input_state(ictx, input_state_string_escape); + return; + } + if (ch == 0x07) { + input_state_string_escape(ch, ictx); + return; + } + + if (ch >= 0x20 && ch != 0x7f) { + if (input_add_string(ictx, ch) != 0) + input_state(ictx, input_state_first); + return; + } +} + +void +input_state_string_escape(u_char ch, struct input_ctx *ictx) +{ + char *s; + + if (ch == '\007' || ch == '\\') { + input_state(ictx, input_state_first); + switch (ictx->string_type) { + case STRING_SYSTEM: + if (ch != '\007') + return; + s = input_get_string(ictx); + if ((s[0] != '0' && s[0] != '2') || s[1] != ';') { + xfree(s); + return; + } + screen_set_title(ictx->ctx.s, s + 2); + server_status_window(ictx->wp->window); + xfree(s); + break; + case STRING_APPLICATION: + if (ch != '\\') + return; + s = input_get_string(ictx); + screen_set_title(ictx->ctx.s, s); + server_status_window(ictx->wp->window); + xfree(s); + break; + case STRING_NAME: + if (ch != '\\') + return; + xfree(ictx->wp->window->name); + ictx->wp->window->name = input_get_string(ictx); + server_status_window(ictx->wp->window); + break; + } + return; + } + + input_state(ictx, input_state_string_next); + input_state_string_next(ch, ictx); +} + +void +input_state_utf8(u_char ch, struct input_ctx *ictx) +{ + log_debug2("-- un %zu: %hhu (%c)", ictx->off, ch, ch); + + ictx->utf8_buf[ictx->utf8_off++] = ch; + if (--ictx->utf8_len != 0) + return; + input_state(ictx, input_state_first); + + ictx->cell.flags |= GRID_FLAG_UTF8; + screen_write_cell(&ictx->ctx, &ictx->cell, ictx->utf8_buf); + ictx->cell.flags &= ~GRID_FLAG_UTF8; +} + +void +input_handle_character(u_char ch, struct input_ctx *ictx) +{ + struct window_pane *wp = ictx->wp; + + if (ch > 0x7f && options_get_number(&wp->window->options, "utf8")) { + /* + * UTF-8 sequence. + * + * 11000010-11011111 C2-DF start of 2-byte sequence + * 11100000-11101111 E0-EF start of 3-byte sequence + * 11110000-11110100 F0-F4 start of 4-byte sequence + */ + memset(ictx->utf8_buf, 0xff, sizeof ictx->utf8_buf); + ictx->utf8_buf[0] = ch; + ictx->utf8_off = 1; + + if (ch >= 0xc2 && ch <= 0xdf) { + log_debug2("-- u2 %zu: %hhu (%c)", ictx->off, ch, ch); + input_state(ictx, input_state_utf8); + ictx->utf8_len = 1; + return; + } + if (ch >= 0xe0 && ch <= 0xef) { + log_debug2("-- u3 %zu: %hhu (%c)", ictx->off, ch, ch); + input_state(ictx, input_state_utf8); + ictx->utf8_len = 2; + return; + } + if (ch >= 0xf0 && ch <= 0xf4) { + log_debug2("-- u4 %zu: %hhu (%c)", ictx->off, ch, ch); + input_state(ictx, input_state_utf8); + ictx->utf8_len = 3; + return; + } + } + log_debug2("-- ch %zu: %hhu (%c)", ictx->off, ch, ch); + + ictx->cell.data = ch; + screen_write_cell(&ictx->ctx, &ictx->cell, ictx->utf8_buf); +} + +void +input_handle_c0_control(u_char ch, struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + + log_debug2("-- c0 %zu: %hhu", ictx->off, ch); + + switch (ch) { + case '\0': /* NUL */ + break; + case '\n': /* LF */ + screen_write_linefeed(&ictx->ctx); + break; + case '\r': /* CR */ + screen_write_carriagereturn(&ictx->ctx); + break; + case '\007': /* BELL */ + ictx->wp->window->flags |= WINDOW_BELL; + break; + case '\010': /* BS */ + screen_write_cursorleft(&ictx->ctx, 1); + break; + case '\011': /* TAB */ + s->cx = ((s->cx / 8) * 8) + 8; + if (s->cx > screen_size_x(s) - 1) { + s->cx = 0; + screen_write_cursordown(&ictx->ctx, 1); + } + screen_write_cursormove(&ictx->ctx, s->cx, s->cy); + break; + case '\016': /* SO */ + ictx->cell.attr |= GRID_ATTR_CHARSET; + break; + case '\017': /* SI */ + ictx->cell.attr &= ~GRID_ATTR_CHARSET; + break; + default: + log_debug("unknown c0: %hhu", ch); + break; + } +} + +void +input_handle_c1_control(u_char ch, struct input_ctx *ictx) +{ + log_debug2("-- c1 %zu: %hhu (%c)", ictx->off, ch, ch); + + switch (ch) { + case 'E': /* NEL */ + screen_write_carriagereturn(&ictx->ctx); + screen_write_linefeed(&ictx->ctx); + break; + case 'M': /* RI */ + screen_write_reverseindex(&ictx->ctx); + break; + default: + log_debug("unknown c1: %hhu", ch); + break; + } +} + +void +input_handle_private_two(u_char ch, struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + + log_debug2( + "-- p2 %zu: %hhu (%c) %hhu", ictx->off, ch, ch, ictx->intermediate); + + switch (ch) { + case '0': /* Dscs (graphics) */ + /* + * Not really supported, but fake it up enough for those that + * use it to switch character sets (by redefining G0 to + * graphics set, rather than switching to G1). + */ + switch (ictx->intermediate) { + case '(': /* G0 */ + ictx->cell.attr |= GRID_ATTR_CHARSET; + break; + } + break; + case '=': /* DECKPAM */ + screen_write_kkeypadmode(&ictx->ctx, 1); + log_debug("kkeypad on (application mode)"); + break; + case '>': /* DECKPNM */ + screen_write_kkeypadmode(&ictx->ctx, 0); + log_debug("kkeypad off (number mode)"); + break; + case '7': /* DECSC */ + memcpy(&ictx->saved_cell, &ictx->cell, sizeof ictx->saved_cell); + ictx->saved_cx = s->cx; + ictx->saved_cy = s->cy; + break; + case '8': /* DECRC */ + memcpy(&ictx->cell, &ictx->saved_cell, sizeof ictx->cell); + screen_write_cursormove( + &ictx->ctx, ictx->saved_cx, ictx->saved_cy); + break; + default: + log_debug("unknown p2: %hhu", ch); + break; + } +} + +void +input_handle_standard_two(u_char ch, struct input_ctx *ictx) +{ + log_debug2( + "-- s2 %zu: %hhu (%c) %hhu", ictx->off, ch, ch, ictx->intermediate); + + switch (ch) { + case 'B': /* Dscs (ASCII) */ + /* + * Not really supported, but fake it up enough for those that + * use it to switch character sets (by redefining G0 to + * graphics set, rather than switching to G1). + */ + switch (ictx->intermediate) { + case '(': /* G0 */ + ictx->cell.attr &= ~GRID_ATTR_CHARSET; + break; + } + break; + case 'c': /* RIS */ + memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell); + + memcpy(&ictx->saved_cell, &ictx->cell, sizeof ictx->saved_cell); + ictx->saved_cx = 0; + ictx->saved_cy = 0; + + screen_write_scrollregion( + &ictx->ctx, 0, screen_size_y(ictx->ctx.s) - 1); + + screen_write_insertmode(&ictx->ctx, 0); + screen_write_kcursormode(&ictx->ctx, 0); + screen_write_kkeypadmode(&ictx->ctx, 0); + screen_write_mousemode(&ictx->ctx, 0); + + screen_write_clearscreen(&ictx->ctx); + screen_write_cursormove(&ictx->ctx, 0, 0); + break; + case 'k': + input_start_string(ictx, STRING_NAME); + input_state(ictx, input_state_string_next); + break; + default: + log_debug("unknown s2: %hhu", ch); + break; + } +} + +void +input_handle_sequence(u_char ch, struct input_ctx *ictx) +{ + struct input_sequence_entry *entry, find; + struct screen *s = ictx->ctx.s; + u_int i; + struct input_arg *iarg; + + log_debug2("-- sq %zu: %hhu (%c): %u [sx=%u, sy=%u, cx=%u, cy=%u, " + "ru=%u, rl=%u]", ictx->off, ch, ch, ARRAY_LENGTH(&ictx->args), + screen_size_x(s), screen_size_y(s), s->cx, s->cy, s->rupper, + s->rlower); + for (i = 0; i < ARRAY_LENGTH(&ictx->args); i++) { + iarg = &ARRAY_ITEM(&ictx->args, i); + if (*iarg->data != '\0') + log_debug2(" ++ %u: %s", i, iarg->data); + } + + find.ch = ch; + entry = bsearch(&find, + input_sequence_table, nitems(input_sequence_table), + sizeof input_sequence_table[0], input_sequence_cmp); + if (entry != NULL) + entry->fn(ictx); + else + log_debug("unknown sq: %c (%hhu %hhu)", ch, ch, ictx->private); +} + +void +input_handle_sequence_cuu(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursorup(&ictx->ctx, n); +} + +void +input_handle_sequence_cud(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursordown(&ictx->ctx, n); +} + +void +input_handle_sequence_cuf(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursorright(&ictx->ctx, n); +} + +void +input_handle_sequence_cub(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursorleft(&ictx->ctx, n); +} + +void +input_handle_sequence_dch(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_deletecharacter(&ictx->ctx, n); +} + +void +input_handle_sequence_dl(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_deleteline(&ictx->ctx, n); +} + +void +input_handle_sequence_ich(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_insertcharacter(&ictx->ctx, n); +} + +void +input_handle_sequence_il(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_insertline(&ictx->ctx, n); +} + +void +input_handle_sequence_vpa(struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursormove(&ictx->ctx, s->cx, n - 1); +} + +void +input_handle_sequence_hpa(struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (n == 0) + n = 1; + + screen_write_cursormove(&ictx->ctx, n - 1, s->cy); +} + +void +input_handle_sequence_cup(struct input_ctx *ictx) +{ + uint16_t n, m; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 2) + return; + if (input_get_argument(ictx, 0, &n, 1) != 0) + return; + if (input_get_argument(ictx, 1, &m, 1) != 0) + return; + if (n == 0) + n = 1; + if (m == 0) + m = 1; + + screen_write_cursormove(&ictx->ctx, m - 1, n - 1); +} + +void +input_handle_sequence_ed(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + if (n > 2) + return; + + switch (n) { + case 0: + screen_write_clearendofscreen(&ictx->ctx); + break; + case 1: + screen_write_clearstartofscreen(&ictx->ctx); + break; + case 2: + screen_write_clearscreen(&ictx->ctx); + break; + } +} + +void +input_handle_sequence_el(struct input_ctx *ictx) +{ + uint16_t n; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + if (n > 2) + return; + + switch (n) { + case 0: + screen_write_clearendofline(&ictx->ctx); + break; + case 1: + screen_write_clearstartofline(&ictx->ctx); + break; + case 2: + screen_write_clearline(&ictx->ctx); + break; + } +} + +void +input_handle_sequence_sm(struct input_ctx *ictx) +{ + uint16_t n; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + + if (ictx->private == '?') { + switch (n) { + case 1: /* GATM */ + screen_write_kcursormode(&ictx->ctx, 1); + log_debug("kcursor on"); + break; + case 25: /* TCEM */ + screen_write_cursormode(&ictx->ctx, 1); + log_debug("cursor on"); + break; + case 1000: + screen_write_mousemode(&ictx->ctx, 1); + log_debug("mouse on"); + break; + default: + log_debug("unknown SM [%hhu]: %u", ictx->private, n); + break; + } + } else { + switch (n) { + case 4: /* IRM */ + screen_write_insertmode(&ictx->ctx, 1); + log_debug("insert on"); + break; + case 34: + /* Cursor high visibility not supported. */ + break; + default: + log_debug("unknown SM [%hhu]: %u", ictx->private, n); + break; + } + } +} + +void +input_handle_sequence_rm(struct input_ctx *ictx) +{ + uint16_t n; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + + if (ictx->private == '?') { + switch (n) { + case 1: /* GATM */ + screen_write_kcursormode(&ictx->ctx, 0); + log_debug("kcursor off"); + break; + case 25: /* TCEM */ + screen_write_cursormode(&ictx->ctx, 0); + log_debug("cursor off"); + break; + case 1000: + screen_write_mousemode(&ictx->ctx, 0); + log_debug("mouse off"); + break; + default: + log_debug("unknown RM [%hhu]: %u", ictx->private, n); + break; + } + } else if (ictx->private == '\0') { + switch (n) { + case 4: /* IRM */ + screen_write_insertmode(&ictx->ctx, 0); + log_debug("insert off"); + break; + case 34: + /* Cursor high visibility not supported. */ + break; + default: + log_debug("unknown RM [%hhu]: %u", ictx->private, n); + break; + } + } +} + +void +input_handle_sequence_dsr(struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + uint16_t n; + char reply[32]; + + if (ARRAY_LENGTH(&ictx->args) > 1) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + + if (ictx->private == '\0') { + switch (n) { + case 6: /* cursor position */ + xsnprintf(reply, sizeof reply, + "\033[%u;%uR", s->cy + 1, s->cx + 1); + log_debug("cursor request, reply: %s", reply); + buffer_write(ictx->wp->out, reply, strlen(reply)); + break; + } + } + +} + +void +input_handle_sequence_decstbm(struct input_ctx *ictx) +{ + struct screen *s = ictx->ctx.s; + uint16_t n, m; + + if (ictx->private != '\0') + return; + + if (ARRAY_LENGTH(&ictx->args) > 2) + return; + if (input_get_argument(ictx, 0, &n, 0) != 0) + return; + if (input_get_argument(ictx, 1, &m, 0) != 0) + return; + if (n == 0) + n = 1; + if (m == 0) + m = screen_size_y(s); + + screen_write_scrollregion(&ictx->ctx, n - 1, m - 1); +} + +void +input_handle_sequence_sgr(struct input_ctx *ictx) +{ + struct grid_cell *gc = &ictx->cell; + u_int i; + uint16_t m, o; + u_char attr; + + if (ARRAY_LENGTH(&ictx->args) == 0) { + attr = gc->attr; + memcpy(gc, &grid_default_cell, sizeof *gc); + gc->attr |= (attr & GRID_ATTR_CHARSET); + return; + } + + for (i = 0; i < ARRAY_LENGTH(&ictx->args); i++) { + if (input_get_argument(ictx, i, &m, 0) != 0) + return; + + if (m == 38 || m == 48) { + i++; + if (input_get_argument(ictx, i, &o, 0) != 0) + return; + if (o != 5) + continue; + + i++; + if (input_get_argument(ictx, i, &o, 0) != 0) + return; + if (m == 38) { + gc->flags |= GRID_FLAG_FG256; + gc->fg = o; + } else if (m == 48) { + gc->flags |= GRID_FLAG_BG256; + gc->bg = o; + } + continue; + } + + switch (m) { + case 0: + case 10: + attr = gc->attr; + memcpy(gc, &grid_default_cell, sizeof *gc); + gc->attr |= (attr & GRID_ATTR_CHARSET); + break; + case 1: + gc->attr |= GRID_ATTR_BRIGHT; + break; + case 2: + gc->attr |= GRID_ATTR_DIM; + break; + case 3: + gc->attr |= GRID_ATTR_ITALICS; + break; + case 4: + gc->attr |= GRID_ATTR_UNDERSCORE; + break; + case 5: + gc->attr |= GRID_ATTR_BLINK; + break; + case 7: + gc->attr |= GRID_ATTR_REVERSE; + break; + case 8: + gc->attr |= GRID_ATTR_HIDDEN; + break; + case 22: + gc->attr &= ~(GRID_ATTR_BRIGHT|GRID_ATTR_DIM); + break; + case 23: + gc->attr &= ~GRID_ATTR_ITALICS; + break; + case 24: + gc->attr &= ~GRID_ATTR_UNDERSCORE; + break; + case 25: + gc->attr &= ~GRID_ATTR_BLINK; + break; + case 27: + gc->attr &= ~GRID_ATTR_REVERSE; + break; + case 30: + case 31: + case 32: + case 33: + case 34: + case 35: + case 36: + case 37: + gc->flags &= ~GRID_FLAG_FG256; + gc->fg = m - 30; + break; + case 39: + gc->flags &= ~GRID_FLAG_FG256; + gc->fg = 8; + break; + case 40: + case 41: + case 42: + case 43: + case 44: + case 45: + case 46: + case 47: + gc->flags &= ~GRID_FLAG_BG256; + gc->bg = m - 40; + break; + case 49: + gc->flags &= ~GRID_FLAG_BG256; + gc->bg = 8; + break; + } + } +} |