mirror of
https://github.com/tmate-io/tmate.git
synced 2024-12-27 00:58:56 +01:00
219442cff7
Support for UTF-8 mouse input (\033[1005h). This was added in xterm 262 and supports larger terminals than the older way. If the new mouse-utf8 option is on, UTF-8 mouse input is enabled for all UTF-8 terminals. The option defaults to on if LANG etc are set in the same manner as the utf8 option. With help and based on code from hsim at gmx.li.
354 lines
10 KiB
C
354 lines
10 KiB
C
/* $Id: utf8.c,v 1.12 2011-01-07 14:34:45 tcunha Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2008 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 <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
struct utf8_width_entry {
|
|
u_int first;
|
|
u_int last;
|
|
|
|
int width;
|
|
|
|
struct utf8_width_entry *left;
|
|
struct utf8_width_entry *right;
|
|
};
|
|
|
|
/* Random order. Not optimal but it'll do for now... */
|
|
struct utf8_width_entry utf8_width_table[] = {
|
|
{ 0x00951, 0x00954, 0, NULL, NULL },
|
|
{ 0x00ccc, 0x00ccd, 0, NULL, NULL },
|
|
{ 0x0fff9, 0x0fffb, 0, NULL, NULL },
|
|
{ 0x20000, 0x2fffd, 2, NULL, NULL },
|
|
{ 0x00ebb, 0x00ebc, 0, NULL, NULL },
|
|
{ 0x01932, 0x01932, 0, NULL, NULL },
|
|
{ 0x0070f, 0x0070f, 0, NULL, NULL },
|
|
{ 0x00a70, 0x00a71, 0, NULL, NULL },
|
|
{ 0x02329, 0x02329, 2, NULL, NULL },
|
|
{ 0x00acd, 0x00acd, 0, NULL, NULL },
|
|
{ 0x00ac7, 0x00ac8, 0, NULL, NULL },
|
|
{ 0x00a3c, 0x00a3c, 0, NULL, NULL },
|
|
{ 0x009cd, 0x009cd, 0, NULL, NULL },
|
|
{ 0x00591, 0x005bd, 0, NULL, NULL },
|
|
{ 0x01058, 0x01059, 0, NULL, NULL },
|
|
{ 0x0ffe0, 0x0ffe6, 2, NULL, NULL },
|
|
{ 0x01100, 0x0115f, 2, NULL, NULL },
|
|
{ 0x0fe20, 0x0fe23, 0, NULL, NULL },
|
|
{ 0x0302a, 0x0302f, 0, NULL, NULL },
|
|
{ 0x01772, 0x01773, 0, NULL, NULL },
|
|
{ 0x005bf, 0x005bf, 0, NULL, NULL },
|
|
{ 0x006ea, 0x006ed, 0, NULL, NULL },
|
|
{ 0x00bc0, 0x00bc0, 0, NULL, NULL },
|
|
{ 0x00962, 0x00963, 0, NULL, NULL },
|
|
{ 0x01732, 0x01734, 0, NULL, NULL },
|
|
{ 0x00d41, 0x00d43, 0, NULL, NULL },
|
|
{ 0x01b42, 0x01b42, 0, NULL, NULL },
|
|
{ 0x00a41, 0x00a42, 0, NULL, NULL },
|
|
{ 0x00eb4, 0x00eb9, 0, NULL, NULL },
|
|
{ 0x00b01, 0x00b01, 0, NULL, NULL },
|
|
{ 0x00e34, 0x00e3a, 0, NULL, NULL },
|
|
{ 0x03040, 0x03098, 2, NULL, NULL },
|
|
{ 0x0093c, 0x0093c, 0, NULL, NULL },
|
|
{ 0x00c4a, 0x00c4d, 0, NULL, NULL },
|
|
{ 0x01032, 0x01032, 0, NULL, NULL },
|
|
{ 0x00f37, 0x00f37, 0, NULL, NULL },
|
|
{ 0x00901, 0x00902, 0, NULL, NULL },
|
|
{ 0x00cbf, 0x00cbf, 0, NULL, NULL },
|
|
{ 0x0a806, 0x0a806, 0, NULL, NULL },
|
|
{ 0x00dd2, 0x00dd4, 0, NULL, NULL },
|
|
{ 0x00f71, 0x00f7e, 0, NULL, NULL },
|
|
{ 0x01752, 0x01753, 0, NULL, NULL },
|
|
{ 0x1d242, 0x1d244, 0, NULL, NULL },
|
|
{ 0x005c1, 0x005c2, 0, NULL, NULL },
|
|
{ 0x0309b, 0x0a4cf, 2, NULL, NULL },
|
|
{ 0xe0100, 0xe01ef, 0, NULL, NULL },
|
|
{ 0x017dd, 0x017dd, 0, NULL, NULL },
|
|
{ 0x00600, 0x00603, 0, NULL, NULL },
|
|
{ 0x009e2, 0x009e3, 0, NULL, NULL },
|
|
{ 0x00cc6, 0x00cc6, 0, NULL, NULL },
|
|
{ 0x0a80b, 0x0a80b, 0, NULL, NULL },
|
|
{ 0x01712, 0x01714, 0, NULL, NULL },
|
|
{ 0x00b3c, 0x00b3c, 0, NULL, NULL },
|
|
{ 0x01b00, 0x01b03, 0, NULL, NULL },
|
|
{ 0x007eb, 0x007f3, 0, NULL, NULL },
|
|
{ 0xe0001, 0xe0001, 0, NULL, NULL },
|
|
{ 0x1d185, 0x1d18b, 0, NULL, NULL },
|
|
{ 0x0feff, 0x0feff, 0, NULL, NULL },
|
|
{ 0x01b36, 0x01b3a, 0, NULL, NULL },
|
|
{ 0x01920, 0x01922, 0, NULL, NULL },
|
|
{ 0x00670, 0x00670, 0, NULL, NULL },
|
|
{ 0x00f90, 0x00f97, 0, NULL, NULL },
|
|
{ 0x01927, 0x01928, 0, NULL, NULL },
|
|
{ 0x0200b, 0x0200f, 0, NULL, NULL },
|
|
{ 0x0ff00, 0x0ff60, 2, NULL, NULL },
|
|
{ 0x0f900, 0x0faff, 2, NULL, NULL },
|
|
{ 0x0fb1e, 0x0fb1e, 0, NULL, NULL },
|
|
{ 0x00cbc, 0x00cbc, 0, NULL, NULL },
|
|
{ 0x00eb1, 0x00eb1, 0, NULL, NULL },
|
|
{ 0x10a38, 0x10a3a, 0, NULL, NULL },
|
|
{ 0x007a6, 0x007b0, 0, NULL, NULL },
|
|
{ 0x00f80, 0x00f84, 0, NULL, NULL },
|
|
{ 0x005c4, 0x005c5, 0, NULL, NULL },
|
|
{ 0x0ac00, 0x0d7a3, 2, NULL, NULL },
|
|
{ 0x017c9, 0x017d3, 0, NULL, NULL },
|
|
{ 0x00d4d, 0x00d4d, 0, NULL, NULL },
|
|
{ 0x1d167, 0x1d169, 0, NULL, NULL },
|
|
{ 0x01036, 0x01037, 0, NULL, NULL },
|
|
{ 0xe0020, 0xe007f, 0, NULL, NULL },
|
|
{ 0x00f35, 0x00f35, 0, NULL, NULL },
|
|
{ 0x017b4, 0x017b5, 0, NULL, NULL },
|
|
{ 0x0206a, 0x0206f, 0, NULL, NULL },
|
|
{ 0x00c46, 0x00c48, 0, NULL, NULL },
|
|
{ 0x01939, 0x0193b, 0, NULL, NULL },
|
|
{ 0x01dc0, 0x01dca, 0, NULL, NULL },
|
|
{ 0x10a0c, 0x10a0f, 0, NULL, NULL },
|
|
{ 0x0102d, 0x01030, 0, NULL, NULL },
|
|
{ 0x017c6, 0x017c6, 0, NULL, NULL },
|
|
{ 0x00ec8, 0x00ecd, 0, NULL, NULL },
|
|
{ 0x00b41, 0x00b43, 0, NULL, NULL },
|
|
{ 0x017b7, 0x017bd, 0, NULL, NULL },
|
|
{ 0x1d173, 0x1d182, 0, NULL, NULL },
|
|
{ 0x00a47, 0x00a48, 0, NULL, NULL },
|
|
{ 0x0232a, 0x0232a, 2, NULL, NULL },
|
|
{ 0x01b3c, 0x01b3c, 0, NULL, NULL },
|
|
{ 0x10a01, 0x10a03, 0, NULL, NULL },
|
|
{ 0x00ae2, 0x00ae3, 0, NULL, NULL },
|
|
{ 0x00483, 0x00486, 0, NULL, NULL },
|
|
{ 0x0135f, 0x0135f, 0, NULL, NULL },
|
|
{ 0x01a17, 0x01a18, 0, NULL, NULL },
|
|
{ 0x006e7, 0x006e8, 0, NULL, NULL },
|
|
{ 0x03099, 0x0309a, 0, NULL, NULL },
|
|
{ 0x00b4d, 0x00b4d, 0, NULL, NULL },
|
|
{ 0x00ce2, 0x00ce3, 0, NULL, NULL },
|
|
{ 0x00bcd, 0x00bcd, 0, NULL, NULL },
|
|
{ 0x00610, 0x00615, 0, NULL, NULL },
|
|
{ 0x00f99, 0x00fbc, 0, NULL, NULL },
|
|
{ 0x009c1, 0x009c4, 0, NULL, NULL },
|
|
{ 0x00730, 0x0074a, 0, NULL, NULL },
|
|
{ 0x00300, 0x0036f, 0, NULL, NULL },
|
|
{ 0x03030, 0x0303e, 2, NULL, NULL },
|
|
{ 0x01b34, 0x01b34, 0, NULL, NULL },
|
|
{ 0x1d1aa, 0x1d1ad, 0, NULL, NULL },
|
|
{ 0x00dca, 0x00dca, 0, NULL, NULL },
|
|
{ 0x006d6, 0x006e4, 0, NULL, NULL },
|
|
{ 0x00f86, 0x00f87, 0, NULL, NULL },
|
|
{ 0x00b3f, 0x00b3f, 0, NULL, NULL },
|
|
{ 0x0fe30, 0x0fe6f, 2, NULL, NULL },
|
|
{ 0x01039, 0x01039, 0, NULL, NULL },
|
|
{ 0x0094d, 0x0094d, 0, NULL, NULL },
|
|
{ 0x00c55, 0x00c56, 0, NULL, NULL },
|
|
{ 0x00488, 0x00489, 0, NULL, NULL },
|
|
{ 0x00e47, 0x00e4e, 0, NULL, NULL },
|
|
{ 0x00a81, 0x00a82, 0, NULL, NULL },
|
|
{ 0x00ac1, 0x00ac5, 0, NULL, NULL },
|
|
{ 0x0202a, 0x0202e, 0, NULL, NULL },
|
|
{ 0x00dd6, 0x00dd6, 0, NULL, NULL },
|
|
{ 0x018a9, 0x018a9, 0, NULL, NULL },
|
|
{ 0x0064b, 0x0065e, 0, NULL, NULL },
|
|
{ 0x00abc, 0x00abc, 0, NULL, NULL },
|
|
{ 0x00b82, 0x00b82, 0, NULL, NULL },
|
|
{ 0x00f39, 0x00f39, 0, NULL, NULL },
|
|
{ 0x020d0, 0x020ef, 0, NULL, NULL },
|
|
{ 0x01dfe, 0x01dff, 0, NULL, NULL },
|
|
{ 0x30000, 0x3fffd, 2, NULL, NULL },
|
|
{ 0x00711, 0x00711, 0, NULL, NULL },
|
|
{ 0x0fe00, 0x0fe0f, 0, NULL, NULL },
|
|
{ 0x01160, 0x011ff, 0, NULL, NULL },
|
|
{ 0x0180b, 0x0180d, 0, NULL, NULL },
|
|
{ 0x10a3f, 0x10a3f, 0, NULL, NULL },
|
|
{ 0x00981, 0x00981, 0, NULL, NULL },
|
|
{ 0x0a825, 0x0a826, 0, NULL, NULL },
|
|
{ 0x00941, 0x00948, 0, NULL, NULL },
|
|
{ 0x01b6b, 0x01b73, 0, NULL, NULL },
|
|
{ 0x00e31, 0x00e31, 0, NULL, NULL },
|
|
{ 0x0fe10, 0x0fe19, 2, NULL, NULL },
|
|
{ 0x00a01, 0x00a02, 0, NULL, NULL },
|
|
{ 0x00a4b, 0x00a4d, 0, NULL, NULL },
|
|
{ 0x00f18, 0x00f19, 0, NULL, NULL },
|
|
{ 0x00fc6, 0x00fc6, 0, NULL, NULL },
|
|
{ 0x02e80, 0x03029, 2, NULL, NULL },
|
|
{ 0x00b56, 0x00b56, 0, NULL, NULL },
|
|
{ 0x009bc, 0x009bc, 0, NULL, NULL },
|
|
{ 0x005c7, 0x005c7, 0, NULL, NULL },
|
|
{ 0x02060, 0x02063, 0, NULL, NULL },
|
|
{ 0x00c3e, 0x00c40, 0, NULL, NULL },
|
|
{ 0x10a05, 0x10a06, 0, NULL, NULL },
|
|
};
|
|
|
|
struct utf8_width_entry *utf8_width_root = NULL;
|
|
|
|
int utf8_overlap(struct utf8_width_entry *, struct utf8_width_entry *);
|
|
u_int utf8_combine(const struct utf8_data *);
|
|
u_int utf8_width(const struct utf8_data *);
|
|
|
|
/*
|
|
* Open 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
|
|
*
|
|
* Returns 1 if more UTF-8 to come, 0 if not UTF-8.
|
|
*/
|
|
int
|
|
utf8_open(struct utf8_data *utf8data, u_char ch)
|
|
{
|
|
memset(utf8data, 0, sizeof *utf8data);
|
|
if (ch >= 0xc2 && ch <= 0xdf)
|
|
utf8data->size = 2;
|
|
else if (ch >= 0xe0 && ch <= 0xef)
|
|
utf8data->size = 3;
|
|
else if (ch >= 0xf0 && ch <= 0xf4)
|
|
utf8data->size = 4;
|
|
else
|
|
return (0);
|
|
utf8_append(utf8data, ch);
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Append character to UTF-8, closing if finished.
|
|
*
|
|
* Returns 1 if more UTF-8 data to come, 0 if finished.
|
|
*/
|
|
int
|
|
utf8_append(struct utf8_data *utf8data, u_char ch)
|
|
{
|
|
if (utf8data->have >= utf8data->size)
|
|
fatalx("UTF-8 character overflow");
|
|
if (utf8data->size > sizeof utf8data->data)
|
|
fatalx("UTF-8 character size too large");
|
|
|
|
utf8data->data[utf8data->have++] = ch;
|
|
if (utf8data->have != utf8data->size)
|
|
return (1);
|
|
|
|
utf8data->width = utf8_width(utf8data);
|
|
return (0);
|
|
}
|
|
|
|
/* Check if two width tree entries overlap. */
|
|
int
|
|
utf8_overlap(
|
|
struct utf8_width_entry *item1, struct utf8_width_entry *item2)
|
|
{
|
|
if (item1->first >= item2->first && item1->first <= item2->last)
|
|
return (1);
|
|
if (item1->last >= item2->first && item1->last <= item2->last)
|
|
return (1);
|
|
if (item2->first >= item1->first && item2->first <= item1->last)
|
|
return (1);
|
|
if (item2->last >= item1->first && item2->last <= item1->last)
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
/* Build UTF-8 width tree. */
|
|
void
|
|
utf8_build(void)
|
|
{
|
|
struct utf8_width_entry **ptr, *item, *node;
|
|
u_int i, j;
|
|
|
|
for (i = 0; i < nitems(utf8_width_table); i++) {
|
|
item = &utf8_width_table[i];
|
|
|
|
for (j = 0; j < nitems(utf8_width_table); j++) {
|
|
if (i != j && utf8_overlap(item, &utf8_width_table[j]))
|
|
log_fatalx("utf8 overlap: %u %u", i, j);
|
|
}
|
|
|
|
ptr = &utf8_width_root;
|
|
while (*ptr != NULL) {
|
|
node = *ptr;
|
|
if (item->last < node->first)
|
|
ptr = &(node->left);
|
|
else if (item->first > node->last)
|
|
ptr = &(node->right);
|
|
}
|
|
*ptr = item;
|
|
}
|
|
}
|
|
|
|
/* Combine UTF-8 into 32-bit Unicode. */
|
|
u_int
|
|
utf8_combine(const struct utf8_data *utf8data)
|
|
{
|
|
u_int value;
|
|
|
|
value = 0xff;
|
|
switch (utf8data->size) {
|
|
case 1:
|
|
value = utf8data->data[0];
|
|
break;
|
|
case 2:
|
|
value = utf8data->data[1] & 0x3f;
|
|
value |= (utf8data->data[0] & 0x1f) << 6;
|
|
break;
|
|
case 3:
|
|
value = utf8data->data[2] & 0x3f;
|
|
value |= (utf8data->data[1] & 0x3f) << 6;
|
|
value |= (utf8data->data[0] & 0x0f) << 12;
|
|
break;
|
|
case 4:
|
|
value = utf8data->data[3] & 0x3f;
|
|
value |= (utf8data->data[2] & 0x3f) << 6;
|
|
value |= (utf8data->data[1] & 0x3f) << 12;
|
|
value |= (utf8data->data[0] & 0x3f) << 18;
|
|
break;
|
|
}
|
|
return (value);
|
|
}
|
|
|
|
/* Split a two-byte UTF-8 character. */
|
|
u_int
|
|
utf8_split2(u_int uc, u_char *ptr)
|
|
{
|
|
if (uc > 0x7f) {
|
|
ptr[0] = (uc >> 6) | 0xc0;
|
|
ptr[1] = (uc & 0x3f) | 0x80;
|
|
return (2);
|
|
}
|
|
ptr[0] = uc;
|
|
return (1);
|
|
}
|
|
|
|
/* Lookup width of UTF-8 data in tree. */
|
|
u_int
|
|
utf8_width(const struct utf8_data *utf8data)
|
|
{
|
|
struct utf8_width_entry *item;
|
|
u_int value;
|
|
|
|
value = utf8_combine(utf8data);
|
|
|
|
item = utf8_width_root;
|
|
while (item != NULL) {
|
|
if (value < item->first)
|
|
item = item->left;
|
|
else if (value > item->last)
|
|
item = item->right;
|
|
else
|
|
return (item->width);
|
|
}
|
|
return (1);
|
|
}
|