mirror of
https://github.com/mintsuki/flanterm
synced 2024-11-27 07:09:40 +03:00
1356 lines
44 KiB
C
1356 lines
44 KiB
C
/* Copyright (C) 2022-2024 mintsuki and contributors.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include "flanterm.h"
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// Tries to implement this standard for terminfo
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// https://man7.org/linux/man-pages/man4/console_codes.4.html
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static const uint32_t col256[] = {
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0x000000, 0x00005f, 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
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0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, 0x008787, 0x0087af,
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0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
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0x00d700, 0x00d75f, 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
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0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
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0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
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0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
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0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
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0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
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0x870000, 0x87005f, 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
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0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, 0x878787, 0x8787af,
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0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
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0x87d700, 0x87d75f, 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
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0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
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0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
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0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
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0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
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0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
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0xd70000, 0xd7005f, 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
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0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
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0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
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0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
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0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, 0xff0087, 0xff00af,
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0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
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0xff8700, 0xff875f, 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
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0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
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0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
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0x080808, 0x121212, 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
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0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
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0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
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};
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#define CHARSET_DEFAULT 0
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#define CHARSET_DEC_SPECIAL 1
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void flanterm_context_reinit(struct flanterm_context *ctx) {
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ctx->tab_size = 8;
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ctx->autoflush = true;
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ctx->cursor_enabled = true;
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ctx->scroll_enabled = true;
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ctx->control_sequence = false;
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ctx->csi = false;
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ctx->escape = false;
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ctx->osc = false;
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ctx->osc_escape = false;
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ctx->rrr = false;
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ctx->discard_next = false;
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ctx->bold = false;
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ctx->bg_bold = false;
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ctx->reverse_video = false;
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ctx->dec_private = false;
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ctx->insert_mode = false;
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ctx->unicode_remaining = 0;
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ctx->g_select = 0;
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ctx->charsets[0] = CHARSET_DEFAULT;
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ctx->charsets[1] = CHARSET_DEC_SPECIAL;
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ctx->current_charset = 0;
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ctx->escape_offset = 0;
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ctx->esc_values_i = 0;
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ctx->saved_cursor_x = 0;
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ctx->saved_cursor_y = 0;
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ctx->current_primary = (size_t)-1;
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ctx->current_bg = (size_t)-1;
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ctx->scroll_top_margin = 0;
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ctx->scroll_bottom_margin = ctx->rows;
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ctx->oob_output = FLANTERM_OOB_OUTPUT_ONLCR;
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}
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static void flanterm_putchar(struct flanterm_context *ctx, uint8_t c);
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void flanterm_write(struct flanterm_context *ctx, const char *buf, size_t count) {
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for (size_t i = 0; i < count; i++) {
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flanterm_putchar(ctx, buf[i]);
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}
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if (ctx->autoflush) {
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ctx->double_buffer_flush(ctx);
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}
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}
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static void sgr(struct flanterm_context *ctx) {
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size_t i = 0;
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if (!ctx->esc_values_i)
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goto def;
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for (; i < ctx->esc_values_i; i++) {
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size_t offset;
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if (ctx->esc_values[i] == 0) {
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def:
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if (ctx->reverse_video) {
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ctx->reverse_video = false;
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ctx->swap_palette(ctx);
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}
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ctx->bold = false;
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ctx->bg_bold = false;
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ctx->current_primary = (size_t)-1;
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ctx->current_bg = (size_t)-1;
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ctx->set_text_bg_default(ctx);
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ctx->set_text_fg_default(ctx);
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continue;
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}
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else if (ctx->esc_values[i] == 1) {
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ctx->bold = true;
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if (ctx->current_primary != (size_t)-1) {
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if (!ctx->reverse_video) {
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ctx->set_text_fg_bright(ctx, ctx->current_primary);
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} else {
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ctx->set_text_bg_bright(ctx, ctx->current_primary);
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}
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} else {
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if (!ctx->reverse_video) {
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ctx->set_text_fg_default_bright(ctx);
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} else {
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ctx->set_text_bg_default_bright(ctx);
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}
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}
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continue;
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}
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else if (ctx->esc_values[i] == 5) {
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ctx->bg_bold = true;
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if (ctx->current_bg != (size_t)-1) {
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if (!ctx->reverse_video) {
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ctx->set_text_bg_bright(ctx, ctx->current_bg);
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} else {
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ctx->set_text_fg_bright(ctx, ctx->current_bg);
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}
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} else {
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if (!ctx->reverse_video) {
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ctx->set_text_bg_default_bright(ctx);
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} else {
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ctx->set_text_fg_default_bright(ctx);
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}
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}
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continue;
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}
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else if (ctx->esc_values[i] == 22) {
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ctx->bold = false;
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if (ctx->current_primary != (size_t)-1) {
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if (!ctx->reverse_video) {
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ctx->set_text_fg(ctx, ctx->current_primary);
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} else {
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ctx->set_text_bg(ctx, ctx->current_primary);
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}
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} else {
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if (!ctx->reverse_video) {
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ctx->set_text_fg_default(ctx);
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} else {
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ctx->set_text_bg_default(ctx);
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}
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}
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continue;
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}
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else if (ctx->esc_values[i] == 25) {
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ctx->bg_bold = false;
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if (ctx->current_bg != (size_t)-1) {
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if (!ctx->reverse_video) {
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ctx->set_text_bg(ctx, ctx->current_bg);
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} else {
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ctx->set_text_fg(ctx, ctx->current_bg);
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}
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} else {
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if (!ctx->reverse_video) {
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ctx->set_text_bg_default(ctx);
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} else {
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ctx->set_text_fg_default(ctx);
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}
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}
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continue;
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}
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else if (ctx->esc_values[i] >= 30 && ctx->esc_values[i] <= 37) {
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offset = 30;
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ctx->current_primary = ctx->esc_values[i] - offset;
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if (ctx->reverse_video) {
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goto set_bg;
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}
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set_fg:
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if ((ctx->bold && !ctx->reverse_video)
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|| (ctx->bg_bold && ctx->reverse_video)) {
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ctx->set_text_fg_bright(ctx, ctx->esc_values[i] - offset);
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} else {
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ctx->set_text_fg(ctx, ctx->esc_values[i] - offset);
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}
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continue;
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}
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else if (ctx->esc_values[i] >= 40 && ctx->esc_values[i] <= 47) {
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offset = 40;
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ctx->current_bg = ctx->esc_values[i] - offset;
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if (ctx->reverse_video) {
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goto set_fg;
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}
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set_bg:
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if ((ctx->bold && ctx->reverse_video)
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|| (ctx->bg_bold && !ctx->reverse_video)) {
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ctx->set_text_bg_bright(ctx, ctx->esc_values[i] - offset);
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} else {
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ctx->set_text_bg(ctx, ctx->esc_values[i] - offset);
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}
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continue;
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}
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else if (ctx->esc_values[i] >= 90 && ctx->esc_values[i] <= 97) {
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offset = 90;
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ctx->current_primary = ctx->esc_values[i] - offset;
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if (ctx->reverse_video) {
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goto set_bg_bright;
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}
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set_fg_bright:
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ctx->set_text_fg_bright(ctx, ctx->esc_values[i] - offset);
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continue;
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}
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else if (ctx->esc_values[i] >= 100 && ctx->esc_values[i] <= 107) {
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offset = 100;
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ctx->current_bg = ctx->esc_values[i] - offset;
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if (ctx->reverse_video) {
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goto set_fg_bright;
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}
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set_bg_bright:
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ctx->set_text_bg_bright(ctx, ctx->esc_values[i] - offset);
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continue;
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}
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else if (ctx->esc_values[i] == 39) {
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ctx->current_primary = (size_t)-1;
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if (ctx->reverse_video) {
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ctx->swap_palette(ctx);
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}
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if (!ctx->bold) {
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ctx->set_text_fg_default(ctx);
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} else {
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ctx->set_text_fg_default_bright(ctx);
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}
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if (ctx->reverse_video) {
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ctx->swap_palette(ctx);
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}
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continue;
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}
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else if (ctx->esc_values[i] == 49) {
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ctx->current_bg = (size_t)-1;
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if (ctx->reverse_video) {
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ctx->swap_palette(ctx);
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}
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if (!ctx->bg_bold) {
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ctx->set_text_bg_default(ctx);
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} else {
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ctx->set_text_bg_default_bright(ctx);
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}
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if (ctx->reverse_video) {
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ctx->swap_palette(ctx);
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}
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continue;
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}
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else if (ctx->esc_values[i] == 7) {
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if (!ctx->reverse_video) {
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ctx->reverse_video = true;
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ctx->swap_palette(ctx);
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}
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continue;
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}
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else if (ctx->esc_values[i] == 27) {
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if (ctx->reverse_video) {
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ctx->reverse_video = false;
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ctx->swap_palette(ctx);
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}
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continue;
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}
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// 256/RGB
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else if (ctx->esc_values[i] == 38 || ctx->esc_values[i] == 48) {
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bool fg = ctx->esc_values[i] == 38;
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i++;
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if (i >= ctx->esc_values_i) {
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break;
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}
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switch (ctx->esc_values[i]) {
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case 2: { // RGB
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if (i + 3 >= ctx->esc_values_i) {
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goto out;
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}
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uint32_t rgb_value = 0;
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rgb_value |= ctx->esc_values[i + 1] << 16;
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rgb_value |= ctx->esc_values[i + 2] << 8;
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rgb_value |= ctx->esc_values[i + 3];
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i += 3;
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(fg ? ctx->set_text_fg_rgb : ctx->set_text_bg_rgb)(ctx, rgb_value);
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break;
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}
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case 5: { // 256 colors
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if (i + 1 >= ctx->esc_values_i) {
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goto out;
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}
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uint32_t col = ctx->esc_values[i + 1];
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i++;
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if (col < 8) {
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(fg ? ctx->set_text_fg : ctx->set_text_bg)(ctx, col);
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} else if (col < 16) {
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(fg ? ctx->set_text_fg_bright : ctx->set_text_bg_bright)(ctx, col - 8);
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} else if (col < 256) {
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uint32_t rgb_value = col256[col - 16];
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(fg ? ctx->set_text_fg_rgb : ctx->set_text_bg_rgb)(ctx, rgb_value);
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}
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|
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break;
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}
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default: continue;
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}
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}
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}
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out:;
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}
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static void dec_private_parse(struct flanterm_context *ctx, uint8_t c) {
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ctx->dec_private = false;
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|
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if (ctx->esc_values_i == 0) {
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return;
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}
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|
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bool set;
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|
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switch (c) {
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case 'h':
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set = true; break;
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case 'l':
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set = false; break;
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default:
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return;
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}
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|
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switch (ctx->esc_values[0]) {
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case 25: {
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if (set) {
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ctx->cursor_enabled = true;
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} else {
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ctx->cursor_enabled = false;
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}
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return;
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}
|
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}
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|
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if (ctx->callback != NULL) {
|
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ctx->callback(ctx, FLANTERM_CB_DEC, ctx->esc_values_i, (uintptr_t)ctx->esc_values, c);
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}
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}
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|
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static void linux_private_parse(struct flanterm_context *ctx) {
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if (ctx->esc_values_i == 0) {
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return;
|
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}
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|
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if (ctx->callback != NULL) {
|
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ctx->callback(ctx, FLANTERM_CB_LINUX, ctx->esc_values_i, (uintptr_t)ctx->esc_values, 0);
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}
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}
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|
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static void mode_toggle(struct flanterm_context *ctx, uint8_t c) {
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if (ctx->esc_values_i == 0) {
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return;
|
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}
|
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|
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bool set;
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|
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switch (c) {
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case 'h':
|
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set = true; break;
|
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case 'l':
|
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set = false; break;
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default:
|
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return;
|
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}
|
|
|
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switch (ctx->esc_values[0]) {
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case 4:
|
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ctx->insert_mode = set; return;
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}
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|
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if (ctx->callback != NULL) {
|
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ctx->callback(ctx, FLANTERM_CB_MODE, ctx->esc_values_i, (uintptr_t)ctx->esc_values, c);
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}
|
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}
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|
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static void osc_parse(struct flanterm_context *ctx, uint8_t c) {
|
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if (ctx->osc_escape && c == '\\') {
|
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goto cleanup;
|
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}
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|
|
ctx->osc_escape = false;
|
|
|
|
switch (c) {
|
|
case 0x1b:
|
|
ctx->osc_escape = true;
|
|
break;
|
|
case '\a':
|
|
goto cleanup;
|
|
}
|
|
|
|
return;
|
|
|
|
cleanup:
|
|
ctx->osc_escape = false;
|
|
ctx->osc = false;
|
|
ctx->escape = false;
|
|
}
|
|
|
|
static void control_sequence_parse(struct flanterm_context *ctx, uint8_t c) {
|
|
if (ctx->escape_offset == 2) {
|
|
switch (c) {
|
|
case '[':
|
|
ctx->discard_next = true;
|
|
goto cleanup;
|
|
case '?':
|
|
ctx->dec_private = true;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (c >= '0' && c <= '9') {
|
|
if (ctx->esc_values_i == FLANTERM_MAX_ESC_VALUES) {
|
|
return;
|
|
}
|
|
ctx->rrr = true;
|
|
ctx->esc_values[ctx->esc_values_i] *= 10;
|
|
ctx->esc_values[ctx->esc_values_i] += c - '0';
|
|
return;
|
|
}
|
|
|
|
if (ctx->rrr == true) {
|
|
ctx->esc_values_i++;
|
|
ctx->rrr = false;
|
|
if (c == ';')
|
|
return;
|
|
} else if (c == ';') {
|
|
if (ctx->esc_values_i == FLANTERM_MAX_ESC_VALUES) {
|
|
return;
|
|
}
|
|
ctx->esc_values[ctx->esc_values_i] = 0;
|
|
ctx->esc_values_i++;
|
|
return;
|
|
}
|
|
|
|
size_t esc_default;
|
|
switch (c) {
|
|
case 'J': case 'K': case 'q':
|
|
esc_default = 0; break;
|
|
default:
|
|
esc_default = 1; break;
|
|
}
|
|
|
|
for (size_t i = ctx->esc_values_i; i < FLANTERM_MAX_ESC_VALUES; i++) {
|
|
ctx->esc_values[i] = esc_default;
|
|
}
|
|
|
|
if (ctx->dec_private == true) {
|
|
dec_private_parse(ctx, c);
|
|
goto cleanup;
|
|
}
|
|
|
|
bool r = ctx->scroll_enabled;
|
|
ctx->scroll_enabled = false;
|
|
size_t x, y;
|
|
ctx->get_cursor_pos(ctx, &x, &y);
|
|
|
|
switch (c) {
|
|
case 'F':
|
|
x = 0;
|
|
// FALLTHRU
|
|
case 'A': {
|
|
if (ctx->esc_values[0] > y)
|
|
ctx->esc_values[0] = y;
|
|
size_t orig_y = y;
|
|
size_t dest_y = y - ctx->esc_values[0];
|
|
bool will_be_in_scroll_region = false;
|
|
if ((ctx->scroll_top_margin >= dest_y && ctx->scroll_top_margin <= orig_y)
|
|
|| (ctx->scroll_bottom_margin >= dest_y && ctx->scroll_bottom_margin <= orig_y)) {
|
|
will_be_in_scroll_region = true;
|
|
}
|
|
if (will_be_in_scroll_region && dest_y < ctx->scroll_top_margin) {
|
|
dest_y = ctx->scroll_top_margin;
|
|
}
|
|
ctx->set_cursor_pos(ctx, x, dest_y);
|
|
break;
|
|
}
|
|
case 'E':
|
|
x = 0;
|
|
// FALLTHRU
|
|
case 'e':
|
|
case 'B': {
|
|
if (y + ctx->esc_values[0] > ctx->rows - 1)
|
|
ctx->esc_values[0] = (ctx->rows - 1) - y;
|
|
size_t orig_y = y;
|
|
size_t dest_y = y + ctx->esc_values[0];
|
|
bool will_be_in_scroll_region = false;
|
|
if ((ctx->scroll_top_margin >= orig_y && ctx->scroll_top_margin <= dest_y)
|
|
|| (ctx->scroll_bottom_margin >= orig_y && ctx->scroll_bottom_margin <= dest_y)) {
|
|
will_be_in_scroll_region = true;
|
|
}
|
|
if (will_be_in_scroll_region && dest_y >= ctx->scroll_bottom_margin) {
|
|
dest_y = ctx->scroll_bottom_margin - 1;
|
|
}
|
|
ctx->set_cursor_pos(ctx, x, dest_y);
|
|
break;
|
|
}
|
|
case 'a':
|
|
case 'C':
|
|
if (x + ctx->esc_values[0] > ctx->cols - 1)
|
|
ctx->esc_values[0] = (ctx->cols - 1) - x;
|
|
ctx->set_cursor_pos(ctx, x + ctx->esc_values[0], y);
|
|
break;
|
|
case 'D':
|
|
if (ctx->esc_values[0] > x)
|
|
ctx->esc_values[0] = x;
|
|
ctx->set_cursor_pos(ctx, x - ctx->esc_values[0], y);
|
|
break;
|
|
case 'c':
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_PRIVATE_ID, 0, 0, 0);
|
|
}
|
|
break;
|
|
case 'd':
|
|
ctx->esc_values[0] -= 1;
|
|
if (ctx->esc_values[0] >= ctx->rows)
|
|
ctx->esc_values[0] = ctx->rows - 1;
|
|
ctx->set_cursor_pos(ctx, x, ctx->esc_values[0]);
|
|
break;
|
|
case 'G':
|
|
case '`':
|
|
ctx->esc_values[0] -= 1;
|
|
if (ctx->esc_values[0] >= ctx->cols)
|
|
ctx->esc_values[0] = ctx->cols - 1;
|
|
ctx->set_cursor_pos(ctx, ctx->esc_values[0], y);
|
|
break;
|
|
case 'H':
|
|
case 'f':
|
|
if (ctx->esc_values[0] != 0) {
|
|
ctx->esc_values[0]--;
|
|
}
|
|
if (ctx->esc_values[1] != 0) {
|
|
ctx->esc_values[1]--;
|
|
}
|
|
if (ctx->esc_values[1] >= ctx->cols)
|
|
ctx->esc_values[1] = ctx->cols - 1;
|
|
if (ctx->esc_values[0] >= ctx->rows)
|
|
ctx->esc_values[0] = ctx->rows - 1;
|
|
ctx->set_cursor_pos(ctx, ctx->esc_values[1], ctx->esc_values[0]);
|
|
break;
|
|
case 'M': {
|
|
size_t count = ctx->esc_values[0] > ctx->rows ? ctx->rows : ctx->esc_values[0];
|
|
for (size_t i = 0; i < count; i++) {
|
|
ctx->scroll(ctx);
|
|
}
|
|
break;
|
|
}
|
|
case 'L': {
|
|
size_t old_scroll_top_margin = ctx->scroll_top_margin;
|
|
ctx->scroll_top_margin = y;
|
|
size_t count = ctx->esc_values[0] > ctx->rows ? ctx->rows : ctx->esc_values[0];
|
|
for (size_t i = 0; i < count; i++) {
|
|
ctx->revscroll(ctx);
|
|
}
|
|
ctx->scroll_top_margin = old_scroll_top_margin;
|
|
break;
|
|
}
|
|
case 'n':
|
|
switch (ctx->esc_values[0]) {
|
|
case 5:
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_STATUS_REPORT, 0, 0, 0);
|
|
}
|
|
break;
|
|
case 6:
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_POS_REPORT, x + 1, y + 1, 0);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
case 'q':
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_KBD_LEDS, ctx->esc_values[0], 0, 0);
|
|
}
|
|
break;
|
|
case 'J':
|
|
switch (ctx->esc_values[0]) {
|
|
case 0: {
|
|
size_t rows_remaining = ctx->rows - (y + 1);
|
|
size_t cols_diff = ctx->cols - (x + 1);
|
|
size_t to_clear = rows_remaining * ctx->cols + cols_diff + 1;
|
|
for (size_t i = 0; i < to_clear; i++) {
|
|
ctx->raw_putchar(ctx, ' ');
|
|
}
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
break;
|
|
}
|
|
case 1: {
|
|
ctx->set_cursor_pos(ctx, 0, 0);
|
|
bool b = false;
|
|
for (size_t yc = 0; yc < ctx->rows; yc++) {
|
|
for (size_t xc = 0; xc < ctx->cols; xc++) {
|
|
ctx->raw_putchar(ctx, ' ');
|
|
if (xc == x && yc == y) {
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
b = true;
|
|
break;
|
|
}
|
|
}
|
|
if (b == true)
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case 2:
|
|
case 3:
|
|
ctx->clear(ctx, false);
|
|
break;
|
|
}
|
|
break;
|
|
case '@':
|
|
for (size_t i = ctx->cols - 1; ; i--) {
|
|
ctx->move_character(ctx, i + ctx->esc_values[0], y, i, y);
|
|
ctx->set_cursor_pos(ctx, i, y);
|
|
ctx->raw_putchar(ctx, ' ');
|
|
if (i == x) {
|
|
break;
|
|
}
|
|
}
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
break;
|
|
case 'P':
|
|
for (size_t i = x + ctx->esc_values[0]; i < ctx->cols; i++)
|
|
ctx->move_character(ctx, i - ctx->esc_values[0], y, i, y);
|
|
ctx->set_cursor_pos(ctx, ctx->cols - ctx->esc_values[0], y);
|
|
// FALLTHRU
|
|
case 'X': {
|
|
size_t count = ctx->esc_values[0] > ctx->cols ? ctx->cols : ctx->esc_values[0];
|
|
for (size_t i = 0; i < count; i++)
|
|
ctx->raw_putchar(ctx, ' ');
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
break;
|
|
}
|
|
case 'm':
|
|
sgr(ctx);
|
|
break;
|
|
case 's':
|
|
ctx->get_cursor_pos(ctx, &ctx->saved_cursor_x, &ctx->saved_cursor_y);
|
|
break;
|
|
case 'u':
|
|
ctx->set_cursor_pos(ctx, ctx->saved_cursor_x, ctx->saved_cursor_y);
|
|
break;
|
|
case 'K':
|
|
switch (ctx->esc_values[0]) {
|
|
case 0: {
|
|
for (size_t i = x; i < ctx->cols; i++)
|
|
ctx->raw_putchar(ctx, ' ');
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
break;
|
|
}
|
|
case 1: {
|
|
ctx->set_cursor_pos(ctx, 0, y);
|
|
for (size_t i = 0; i < x; i++)
|
|
ctx->raw_putchar(ctx, ' ');
|
|
break;
|
|
}
|
|
case 2: {
|
|
ctx->set_cursor_pos(ctx, 0, y);
|
|
for (size_t i = 0; i < ctx->cols; i++)
|
|
ctx->raw_putchar(ctx, ' ');
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 'r':
|
|
if (ctx->esc_values[0] == 0) {
|
|
ctx->esc_values[0] = 1;
|
|
}
|
|
if (ctx->esc_values[1] == 0) {
|
|
ctx->esc_values[1] = 1;
|
|
}
|
|
ctx->scroll_top_margin = 0;
|
|
ctx->scroll_bottom_margin = ctx->rows;
|
|
if (ctx->esc_values_i > 0) {
|
|
ctx->scroll_top_margin = ctx->esc_values[0] - 1;
|
|
}
|
|
if (ctx->esc_values_i > 1) {
|
|
ctx->scroll_bottom_margin = ctx->esc_values[1];
|
|
}
|
|
if (ctx->scroll_top_margin >= ctx->rows
|
|
|| ctx->scroll_bottom_margin > ctx->rows
|
|
|| ctx->scroll_top_margin >= (ctx->scroll_bottom_margin - 1)) {
|
|
ctx->scroll_top_margin = 0;
|
|
ctx->scroll_bottom_margin = ctx->rows;
|
|
}
|
|
ctx->set_cursor_pos(ctx, 0, 0);
|
|
break;
|
|
case 'l':
|
|
case 'h':
|
|
mode_toggle(ctx, c);
|
|
break;
|
|
case ']':
|
|
linux_private_parse(ctx);
|
|
break;
|
|
}
|
|
|
|
ctx->scroll_enabled = r;
|
|
|
|
cleanup:
|
|
ctx->control_sequence = false;
|
|
ctx->escape = false;
|
|
}
|
|
|
|
static void restore_state(struct flanterm_context *ctx) {
|
|
ctx->bold = ctx->saved_state_bold;
|
|
ctx->bg_bold = ctx->saved_state_bg_bold;
|
|
ctx->reverse_video = ctx->saved_state_reverse_video;
|
|
ctx->current_charset = ctx->saved_state_current_charset;
|
|
ctx->current_primary = ctx->saved_state_current_primary;
|
|
ctx->current_bg = ctx->saved_state_current_bg;
|
|
|
|
ctx->restore_state(ctx);
|
|
}
|
|
|
|
static void save_state(struct flanterm_context *ctx) {
|
|
ctx->save_state(ctx);
|
|
|
|
ctx->saved_state_bold = ctx->bold;
|
|
ctx->saved_state_bg_bold = ctx->bg_bold;
|
|
ctx->saved_state_reverse_video = ctx->reverse_video;
|
|
ctx->saved_state_current_charset = ctx->current_charset;
|
|
ctx->saved_state_current_primary = ctx->current_primary;
|
|
ctx->saved_state_current_bg = ctx->current_bg;
|
|
}
|
|
|
|
static void escape_parse(struct flanterm_context *ctx, uint8_t c) {
|
|
ctx->escape_offset++;
|
|
|
|
if (ctx->osc == true) {
|
|
osc_parse(ctx, c);
|
|
return;
|
|
}
|
|
|
|
if (ctx->control_sequence == true) {
|
|
control_sequence_parse(ctx, c);
|
|
return;
|
|
}
|
|
|
|
if (ctx->csi == true) {
|
|
ctx->csi = false;
|
|
goto is_csi;
|
|
}
|
|
|
|
size_t x, y;
|
|
ctx->get_cursor_pos(ctx, &x, &y);
|
|
|
|
switch (c) {
|
|
case ']':
|
|
ctx->osc_escape = false;
|
|
ctx->osc = true;
|
|
return;
|
|
case '[':
|
|
is_csi:
|
|
for (size_t i = 0; i < FLANTERM_MAX_ESC_VALUES; i++)
|
|
ctx->esc_values[i] = 0;
|
|
ctx->esc_values_i = 0;
|
|
ctx->rrr = false;
|
|
ctx->control_sequence = true;
|
|
return;
|
|
case '7':
|
|
save_state(ctx);
|
|
break;
|
|
case '8':
|
|
restore_state(ctx);
|
|
break;
|
|
case 'c':
|
|
flanterm_context_reinit(ctx);
|
|
ctx->clear(ctx, true);
|
|
break;
|
|
case 'D':
|
|
if (y == ctx->scroll_bottom_margin - 1) {
|
|
ctx->scroll(ctx);
|
|
ctx->set_cursor_pos(ctx, x, y);
|
|
} else {
|
|
ctx->set_cursor_pos(ctx, x, y + 1);
|
|
}
|
|
break;
|
|
case 'E':
|
|
if (y == ctx->scroll_bottom_margin - 1) {
|
|
ctx->scroll(ctx);
|
|
ctx->set_cursor_pos(ctx, 0, y);
|
|
} else {
|
|
ctx->set_cursor_pos(ctx, 0, y + 1);
|
|
}
|
|
break;
|
|
case 'M':
|
|
// "Reverse linefeed"
|
|
if (y == ctx->scroll_top_margin) {
|
|
ctx->revscroll(ctx);
|
|
ctx->set_cursor_pos(ctx, 0, y);
|
|
} else {
|
|
ctx->set_cursor_pos(ctx, 0, y - 1);
|
|
}
|
|
break;
|
|
case 'Z':
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_PRIVATE_ID, 0, 0, 0);
|
|
}
|
|
break;
|
|
case '(':
|
|
case ')':
|
|
ctx->g_select = c - '\'';
|
|
break;
|
|
}
|
|
|
|
ctx->escape = false;
|
|
}
|
|
|
|
static bool dec_special_print(struct flanterm_context *ctx, uint8_t c) {
|
|
#define FLANTERM_DEC_SPCL_PRN(C) ctx->raw_putchar(ctx, (C)); return true;
|
|
switch (c) {
|
|
case '`': FLANTERM_DEC_SPCL_PRN(0x04)
|
|
case '0': FLANTERM_DEC_SPCL_PRN(0xdb)
|
|
case '-': FLANTERM_DEC_SPCL_PRN(0x18)
|
|
case ',': FLANTERM_DEC_SPCL_PRN(0x1b)
|
|
case '.': FLANTERM_DEC_SPCL_PRN(0x19)
|
|
case 'a': FLANTERM_DEC_SPCL_PRN(0xb1)
|
|
case 'f': FLANTERM_DEC_SPCL_PRN(0xf8)
|
|
case 'g': FLANTERM_DEC_SPCL_PRN(0xf1)
|
|
case 'h': FLANTERM_DEC_SPCL_PRN(0xb0)
|
|
case 'j': FLANTERM_DEC_SPCL_PRN(0xd9)
|
|
case 'k': FLANTERM_DEC_SPCL_PRN(0xbf)
|
|
case 'l': FLANTERM_DEC_SPCL_PRN(0xda)
|
|
case 'm': FLANTERM_DEC_SPCL_PRN(0xc0)
|
|
case 'n': FLANTERM_DEC_SPCL_PRN(0xc5)
|
|
case 'q': FLANTERM_DEC_SPCL_PRN(0xc4)
|
|
case 's': FLANTERM_DEC_SPCL_PRN(0x5f)
|
|
case 't': FLANTERM_DEC_SPCL_PRN(0xc3)
|
|
case 'u': FLANTERM_DEC_SPCL_PRN(0xb4)
|
|
case 'v': FLANTERM_DEC_SPCL_PRN(0xc1)
|
|
case 'w': FLANTERM_DEC_SPCL_PRN(0xc2)
|
|
case 'x': FLANTERM_DEC_SPCL_PRN(0xb3)
|
|
case 'y': FLANTERM_DEC_SPCL_PRN(0xf3)
|
|
case 'z': FLANTERM_DEC_SPCL_PRN(0xf2)
|
|
case '~': FLANTERM_DEC_SPCL_PRN(0xfa)
|
|
case '_': FLANTERM_DEC_SPCL_PRN(0xff)
|
|
case '+': FLANTERM_DEC_SPCL_PRN(0x1a)
|
|
case '{': FLANTERM_DEC_SPCL_PRN(0xe3)
|
|
case '}': FLANTERM_DEC_SPCL_PRN(0x9c)
|
|
}
|
|
#undef FLANTERM_DEC_SPCL_PRN
|
|
|
|
return false;
|
|
}
|
|
|
|
// Following wcwidth related code inherited from:
|
|
// https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
|
|
|
|
struct interval {
|
|
uint32_t first;
|
|
uint32_t last;
|
|
};
|
|
|
|
/* auxiliary function for binary search in interval table */
|
|
static int bisearch(uint32_t ucs, const struct interval *table, int max) {
|
|
int min = 0;
|
|
int mid;
|
|
|
|
if (ucs < table[0].first || ucs > table[max].last)
|
|
return 0;
|
|
while (max >= min) {
|
|
mid = (min + max) / 2;
|
|
if (ucs > table[mid].last)
|
|
min = mid + 1;
|
|
else if (ucs < table[mid].first)
|
|
max = mid - 1;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mk_wcwidth(uint32_t ucs) {
|
|
/* sorted list of non-overlapping intervals of non-spacing characters */
|
|
/* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c" */
|
|
static const struct interval combining[] = {
|
|
{ 0x0300, 0x036F }, { 0x0483, 0x0486 }, { 0x0488, 0x0489 },
|
|
{ 0x0591, 0x05BD }, { 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 },
|
|
{ 0x05C4, 0x05C5 }, { 0x05C7, 0x05C7 }, { 0x0600, 0x0603 },
|
|
{ 0x0610, 0x0615 }, { 0x064B, 0x065E }, { 0x0670, 0x0670 },
|
|
{ 0x06D6, 0x06E4 }, { 0x06E7, 0x06E8 }, { 0x06EA, 0x06ED },
|
|
{ 0x070F, 0x070F }, { 0x0711, 0x0711 }, { 0x0730, 0x074A },
|
|
{ 0x07A6, 0x07B0 }, { 0x07EB, 0x07F3 }, { 0x0901, 0x0902 },
|
|
{ 0x093C, 0x093C }, { 0x0941, 0x0948 }, { 0x094D, 0x094D },
|
|
{ 0x0951, 0x0954 }, { 0x0962, 0x0963 }, { 0x0981, 0x0981 },
|
|
{ 0x09BC, 0x09BC }, { 0x09C1, 0x09C4 }, { 0x09CD, 0x09CD },
|
|
{ 0x09E2, 0x09E3 }, { 0x0A01, 0x0A02 }, { 0x0A3C, 0x0A3C },
|
|
{ 0x0A41, 0x0A42 }, { 0x0A47, 0x0A48 }, { 0x0A4B, 0x0A4D },
|
|
{ 0x0A70, 0x0A71 }, { 0x0A81, 0x0A82 }, { 0x0ABC, 0x0ABC },
|
|
{ 0x0AC1, 0x0AC5 }, { 0x0AC7, 0x0AC8 }, { 0x0ACD, 0x0ACD },
|
|
{ 0x0AE2, 0x0AE3 }, { 0x0B01, 0x0B01 }, { 0x0B3C, 0x0B3C },
|
|
{ 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B43 }, { 0x0B4D, 0x0B4D },
|
|
{ 0x0B56, 0x0B56 }, { 0x0B82, 0x0B82 }, { 0x0BC0, 0x0BC0 },
|
|
{ 0x0BCD, 0x0BCD }, { 0x0C3E, 0x0C40 }, { 0x0C46, 0x0C48 },
|
|
{ 0x0C4A, 0x0C4D }, { 0x0C55, 0x0C56 }, { 0x0CBC, 0x0CBC },
|
|
{ 0x0CBF, 0x0CBF }, { 0x0CC6, 0x0CC6 }, { 0x0CCC, 0x0CCD },
|
|
{ 0x0CE2, 0x0CE3 }, { 0x0D41, 0x0D43 }, { 0x0D4D, 0x0D4D },
|
|
{ 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 }, { 0x0DD6, 0x0DD6 },
|
|
{ 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A }, { 0x0E47, 0x0E4E },
|
|
{ 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EB9 }, { 0x0EBB, 0x0EBC },
|
|
{ 0x0EC8, 0x0ECD }, { 0x0F18, 0x0F19 }, { 0x0F35, 0x0F35 },
|
|
{ 0x0F37, 0x0F37 }, { 0x0F39, 0x0F39 }, { 0x0F71, 0x0F7E },
|
|
{ 0x0F80, 0x0F84 }, { 0x0F86, 0x0F87 }, { 0x0F90, 0x0F97 },
|
|
{ 0x0F99, 0x0FBC }, { 0x0FC6, 0x0FC6 }, { 0x102D, 0x1030 },
|
|
{ 0x1032, 0x1032 }, { 0x1036, 0x1037 }, { 0x1039, 0x1039 },
|
|
{ 0x1058, 0x1059 }, { 0x1160, 0x11FF }, { 0x135F, 0x135F },
|
|
{ 0x1712, 0x1714 }, { 0x1732, 0x1734 }, { 0x1752, 0x1753 },
|
|
{ 0x1772, 0x1773 }, { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD },
|
|
{ 0x17C6, 0x17C6 }, { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD },
|
|
{ 0x180B, 0x180D }, { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 },
|
|
{ 0x1927, 0x1928 }, { 0x1932, 0x1932 }, { 0x1939, 0x193B },
|
|
{ 0x1A17, 0x1A18 }, { 0x1B00, 0x1B03 }, { 0x1B34, 0x1B34 },
|
|
{ 0x1B36, 0x1B3A }, { 0x1B3C, 0x1B3C }, { 0x1B42, 0x1B42 },
|
|
{ 0x1B6B, 0x1B73 }, { 0x1DC0, 0x1DCA }, { 0x1DFE, 0x1DFF },
|
|
{ 0x200B, 0x200F }, { 0x202A, 0x202E }, { 0x2060, 0x2063 },
|
|
{ 0x206A, 0x206F }, { 0x20D0, 0x20EF }, { 0x302A, 0x302F },
|
|
{ 0x3099, 0x309A }, { 0xA806, 0xA806 }, { 0xA80B, 0xA80B },
|
|
{ 0xA825, 0xA826 }, { 0xFB1E, 0xFB1E }, { 0xFE00, 0xFE0F },
|
|
{ 0xFE20, 0xFE23 }, { 0xFEFF, 0xFEFF }, { 0xFFF9, 0xFFFB },
|
|
{ 0x10A01, 0x10A03 }, { 0x10A05, 0x10A06 }, { 0x10A0C, 0x10A0F },
|
|
{ 0x10A38, 0x10A3A }, { 0x10A3F, 0x10A3F }, { 0x1D167, 0x1D169 },
|
|
{ 0x1D173, 0x1D182 }, { 0x1D185, 0x1D18B }, { 0x1D1AA, 0x1D1AD },
|
|
{ 0x1D242, 0x1D244 }, { 0xE0001, 0xE0001 }, { 0xE0020, 0xE007F },
|
|
{ 0xE0100, 0xE01EF }
|
|
};
|
|
|
|
/* test for 8-bit control characters */
|
|
if (ucs == 0)
|
|
return 0;
|
|
if (ucs < 32 || (ucs >= 0x7f && ucs < 0xa0))
|
|
return 1;
|
|
|
|
/* binary search in table of non-spacing characters */
|
|
if (bisearch(ucs, combining,
|
|
sizeof(combining) / sizeof(struct interval) - 1))
|
|
return 0;
|
|
|
|
/* if we arrive here, ucs is not a combining or C0/C1 control character */
|
|
|
|
return 1 +
|
|
(ucs >= 0x1100 &&
|
|
(ucs <= 0x115f || /* Hangul Jamo init. consonants */
|
|
ucs == 0x2329 || ucs == 0x232a ||
|
|
(ucs >= 0x2e80 && ucs <= 0xa4cf &&
|
|
ucs != 0x303f) || /* CJK ... Yi */
|
|
(ucs >= 0xac00 && ucs <= 0xd7a3) || /* Hangul Syllables */
|
|
(ucs >= 0xf900 && ucs <= 0xfaff) || /* CJK Compatibility Ideographs */
|
|
(ucs >= 0xfe10 && ucs <= 0xfe19) || /* Vertical forms */
|
|
(ucs >= 0xfe30 && ucs <= 0xfe6f) || /* CJK Compatibility Forms */
|
|
(ucs >= 0xff00 && ucs <= 0xff60) || /* Fullwidth Forms */
|
|
(ucs >= 0xffe0 && ucs <= 0xffe6) ||
|
|
(ucs >= 0x20000 && ucs <= 0x2fffd) ||
|
|
(ucs >= 0x30000 && ucs <= 0x3fffd)));
|
|
}
|
|
|
|
// End of https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c inherited code
|
|
|
|
static int unicode_to_cp437(uint64_t code_point) {
|
|
switch (code_point) {
|
|
case 0x263a: return 1;
|
|
case 0x263b: return 2;
|
|
case 0x2665: return 3;
|
|
case 0x2666: return 4;
|
|
case 0x2663: return 5;
|
|
case 0x2660: return 6;
|
|
case 0x2022: return 7;
|
|
case 0x25d8: return 8;
|
|
case 0x25cb: return 9;
|
|
case 0x25d9: return 10;
|
|
case 0x2642: return 11;
|
|
case 0x2640: return 12;
|
|
case 0x266a: return 13;
|
|
case 0x266b: return 14;
|
|
case 0x263c: return 15;
|
|
case 0x25ba: return 16;
|
|
case 0x25c4: return 17;
|
|
case 0x2195: return 18;
|
|
case 0x203c: return 19;
|
|
case 0x00b6: return 20;
|
|
case 0x00a7: return 21;
|
|
case 0x25ac: return 22;
|
|
case 0x21a8: return 23;
|
|
case 0x2191: return 24;
|
|
case 0x2193: return 25;
|
|
case 0x2192: return 26;
|
|
case 0x2190: return 27;
|
|
case 0x221f: return 28;
|
|
case 0x2194: return 29;
|
|
case 0x25b2: return 30;
|
|
case 0x25bc: return 31;
|
|
|
|
case 0x2302: return 127;
|
|
case 0x00c7: return 128;
|
|
case 0x00fc: return 129;
|
|
case 0x00e9: return 130;
|
|
case 0x00e2: return 131;
|
|
case 0x00e4: return 132;
|
|
case 0x00e0: return 133;
|
|
case 0x00e5: return 134;
|
|
case 0x00e7: return 135;
|
|
case 0x00ea: return 136;
|
|
case 0x00eb: return 137;
|
|
case 0x00e8: return 138;
|
|
case 0x00ef: return 139;
|
|
case 0x00ee: return 140;
|
|
case 0x00ec: return 141;
|
|
case 0x00c4: return 142;
|
|
case 0x00c5: return 143;
|
|
case 0x00c9: return 144;
|
|
case 0x00e6: return 145;
|
|
case 0x00c6: return 146;
|
|
case 0x00f4: return 147;
|
|
case 0x00f6: return 148;
|
|
case 0x00f2: return 149;
|
|
case 0x00fb: return 150;
|
|
case 0x00f9: return 151;
|
|
case 0x00ff: return 152;
|
|
case 0x00d6: return 153;
|
|
case 0x00dc: return 154;
|
|
case 0x00a2: return 155;
|
|
case 0x00a3: return 156;
|
|
case 0x00a5: return 157;
|
|
case 0x20a7: return 158;
|
|
case 0x0192: return 159;
|
|
case 0x00e1: return 160;
|
|
case 0x00ed: return 161;
|
|
case 0x00f3: return 162;
|
|
case 0x00fa: return 163;
|
|
case 0x00f1: return 164;
|
|
case 0x00d1: return 165;
|
|
case 0x00aa: return 166;
|
|
case 0x00ba: return 167;
|
|
case 0x00bf: return 168;
|
|
case 0x2310: return 169;
|
|
case 0x00ac: return 170;
|
|
case 0x00bd: return 171;
|
|
case 0x00bc: return 172;
|
|
case 0x00a1: return 173;
|
|
case 0x00ab: return 174;
|
|
case 0x00bb: return 175;
|
|
case 0x2591: return 176;
|
|
case 0x2592: return 177;
|
|
case 0x2593: return 178;
|
|
case 0x2502: return 179;
|
|
case 0x2524: return 180;
|
|
case 0x2561: return 181;
|
|
case 0x2562: return 182;
|
|
case 0x2556: return 183;
|
|
case 0x2555: return 184;
|
|
case 0x2563: return 185;
|
|
case 0x2551: return 186;
|
|
case 0x2557: return 187;
|
|
case 0x255d: return 188;
|
|
case 0x255c: return 189;
|
|
case 0x255b: return 190;
|
|
case 0x2510: return 191;
|
|
case 0x2514: return 192;
|
|
case 0x2534: return 193;
|
|
case 0x252c: return 194;
|
|
case 0x251c: return 195;
|
|
case 0x2500: return 196;
|
|
case 0x253c: return 197;
|
|
case 0x255e: return 198;
|
|
case 0x255f: return 199;
|
|
case 0x255a: return 200;
|
|
case 0x2554: return 201;
|
|
case 0x2569: return 202;
|
|
case 0x2566: return 203;
|
|
case 0x2560: return 204;
|
|
case 0x2550: return 205;
|
|
case 0x256c: return 206;
|
|
case 0x2567: return 207;
|
|
case 0x2568: return 208;
|
|
case 0x2564: return 209;
|
|
case 0x2565: return 210;
|
|
case 0x2559: return 211;
|
|
case 0x2558: return 212;
|
|
case 0x2552: return 213;
|
|
case 0x2553: return 214;
|
|
case 0x256b: return 215;
|
|
case 0x256a: return 216;
|
|
case 0x2518: return 217;
|
|
case 0x250c: return 218;
|
|
case 0x2588: return 219;
|
|
case 0x2584: return 220;
|
|
case 0x258c: return 221;
|
|
case 0x2590: return 222;
|
|
case 0x2580: return 223;
|
|
case 0x03b1: return 224;
|
|
case 0x00df: return 225;
|
|
case 0x0393: return 226;
|
|
case 0x03c0: return 227;
|
|
case 0x03a3: return 228;
|
|
case 0x03c3: return 229;
|
|
case 0x00b5: return 230;
|
|
case 0x03c4: return 231;
|
|
case 0x03a6: return 232;
|
|
case 0x0398: return 233;
|
|
case 0x03a9: return 234;
|
|
case 0x03b4: return 235;
|
|
case 0x221e: return 236;
|
|
case 0x03c6: return 237;
|
|
case 0x03b5: return 238;
|
|
case 0x2229: return 239;
|
|
case 0x2261: return 240;
|
|
case 0x00b1: return 241;
|
|
case 0x2265: return 242;
|
|
case 0x2264: return 243;
|
|
case 0x2320: return 244;
|
|
case 0x2321: return 245;
|
|
case 0x00f7: return 246;
|
|
case 0x2248: return 247;
|
|
case 0x00b0: return 248;
|
|
case 0x2219: return 249;
|
|
case 0x00b7: return 250;
|
|
case 0x221a: return 251;
|
|
case 0x207f: return 252;
|
|
case 0x00b2: return 253;
|
|
case 0x25a0: return 254;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void flanterm_putchar(struct flanterm_context *ctx, uint8_t c) {
|
|
if (ctx->discard_next || (c == 0x18 || c == 0x1a)) {
|
|
ctx->discard_next = false;
|
|
ctx->escape = false;
|
|
ctx->csi = false;
|
|
ctx->control_sequence = false;
|
|
ctx->unicode_remaining = 0;
|
|
ctx->osc = false;
|
|
ctx->osc_escape = false;
|
|
ctx->g_select = 0;
|
|
return;
|
|
}
|
|
|
|
if (ctx->unicode_remaining != 0) {
|
|
if ((c & 0xc0) != 0x80) {
|
|
ctx->unicode_remaining = 0;
|
|
goto unicode_error;
|
|
}
|
|
|
|
ctx->unicode_remaining--;
|
|
ctx->code_point |= (uint64_t)(c & 0x3f) << (6 * ctx->unicode_remaining);
|
|
if (ctx->unicode_remaining != 0) {
|
|
return;
|
|
}
|
|
|
|
int cc = unicode_to_cp437(ctx->code_point);
|
|
|
|
if (cc == -1) {
|
|
size_t replacement_width = (size_t)mk_wcwidth(ctx->code_point);
|
|
if (replacement_width > 0) {
|
|
ctx->raw_putchar(ctx, 0xfe);
|
|
}
|
|
for (size_t i = 1; i < replacement_width; i++) {
|
|
ctx->raw_putchar(ctx, ' ');
|
|
}
|
|
} else {
|
|
ctx->raw_putchar(ctx, cc);
|
|
}
|
|
return;
|
|
}
|
|
|
|
unicode_error:
|
|
if (c >= 0xc0 && c <= 0xf7) {
|
|
if (c >= 0xc0 && c <= 0xdf) {
|
|
ctx->unicode_remaining = 1;
|
|
ctx->code_point = (uint64_t)(c & 0x1f) << 6;
|
|
} else if (c >= 0xe0 && c <= 0xef) {
|
|
ctx->unicode_remaining = 2;
|
|
ctx->code_point = (uint64_t)(c & 0x0f) << (6 * 2);
|
|
} else if (c >= 0xf0 && c <= 0xf7) {
|
|
ctx->unicode_remaining = 3;
|
|
ctx->code_point = (uint64_t)(c & 0x07) << (6 * 3);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (ctx->escape == true) {
|
|
escape_parse(ctx, c);
|
|
return;
|
|
}
|
|
|
|
if (ctx->g_select) {
|
|
ctx->g_select--;
|
|
switch (c) {
|
|
case 'B':
|
|
ctx->charsets[ctx->g_select] = CHARSET_DEFAULT; break;
|
|
case '0':
|
|
ctx->charsets[ctx->g_select] = CHARSET_DEC_SPECIAL; break;
|
|
}
|
|
ctx->g_select = 0;
|
|
return;
|
|
}
|
|
|
|
size_t x, y;
|
|
ctx->get_cursor_pos(ctx, &x, &y);
|
|
|
|
switch (c) {
|
|
case 0x00:
|
|
case 0x7f:
|
|
return;
|
|
case 0x9b:
|
|
ctx->csi = true;
|
|
// FALLTHRU
|
|
case 0x1b:
|
|
ctx->escape_offset = 0;
|
|
ctx->escape = true;
|
|
return;
|
|
case '\t':
|
|
if ((x / ctx->tab_size + 1) >= ctx->cols) {
|
|
ctx->set_cursor_pos(ctx, ctx->cols - 1, y);
|
|
return;
|
|
}
|
|
ctx->set_cursor_pos(ctx, (x / ctx->tab_size + 1) * ctx->tab_size, y);
|
|
return;
|
|
case 0x0b:
|
|
case 0x0c:
|
|
case '\n':
|
|
if (y == ctx->scroll_bottom_margin - 1) {
|
|
ctx->scroll(ctx);
|
|
ctx->set_cursor_pos(ctx, (ctx->oob_output & FLANTERM_OOB_OUTPUT_ONLCR) ? 0 : x, y);
|
|
} else {
|
|
ctx->set_cursor_pos(ctx, (ctx->oob_output & FLANTERM_OOB_OUTPUT_ONLCR) ? 0 : x, y + 1);
|
|
}
|
|
return;
|
|
case '\b':
|
|
ctx->set_cursor_pos(ctx, x - 1, y);
|
|
return;
|
|
case '\r':
|
|
ctx->set_cursor_pos(ctx, 0, y);
|
|
return;
|
|
case '\a':
|
|
// The bell is handled by the kernel
|
|
if (ctx->callback != NULL) {
|
|
ctx->callback(ctx, FLANTERM_CB_BELL, 0, 0, 0);
|
|
}
|
|
return;
|
|
case 14:
|
|
// Move to G1 set
|
|
ctx->current_charset = 1;
|
|
return;
|
|
case 15:
|
|
// Move to G0 set
|
|
ctx->current_charset = 0;
|
|
return;
|
|
}
|
|
|
|
if (ctx->insert_mode == true) {
|
|
for (size_t i = ctx->cols - 1; ; i--) {
|
|
ctx->move_character(ctx, i + 1, y, i, y);
|
|
if (i == x) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Translate character set
|
|
switch (ctx->charsets[ctx->current_charset]) {
|
|
case CHARSET_DEFAULT:
|
|
break;
|
|
case CHARSET_DEC_SPECIAL:
|
|
if (dec_special_print(ctx, c)) {
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (c >= 0x20 && c <= 0x7e) {
|
|
ctx->raw_putchar(ctx, c);
|
|
}
|
|
}
|