vim: src/libvterm/src/encoding.c annotate

annotate src/libvterm/src/encoding.c @ 20518:a4652d7ec99f v8.2.0813

patch 8.2.0813: libvterm code is slightly different from upstream Commit: https://github.com/vim/vim/commit/591cec8366e87a172495c362477cbf5de8d399f0 Author: Bram Moolenaar <Bram@vim.org> Date: Fri May 22 22:06:06 2020 +0200 patch 8.2.0813: libvterm code is slightly different from upstream Problem: libvterm code is slightly different from upstream. Solution: Use upstream text to avoid future merge problems. Mainly comment style changes.

author	Bram Moolenaar <Bram@vim.org>
date	Fri, 22 May 2020 22:15:04 +0200
parents	811a12a78164
children	82336c3b679d

rev	line source
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	1 #include "vterm_internal.h"
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	2
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	3 #define UNICODE_INVALID 0xFFFD
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	4
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	5 #if defined(DEBUG) && DEBUG > 1
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	6 # define DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	7 #endif
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	9 struct UTF8DecoderData {
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	10 // number of bytes remaining in this codepoint
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	11 int bytes_remaining;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	12
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	13 // number of bytes total in this codepoint once it's finished
2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	14 // (for detecting overlongs)
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	15 int bytes_total;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	16
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	17 int this_cp;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	18 };
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	19
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	20 static void init_utf8(VTermEncoding enc UNUSED, void data_)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	21 {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	22 struct UTF8DecoderData *data = data_;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	23
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	24 data->bytes_remaining = 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	25 data->bytes_total = 0;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	26 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	27
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	28 static void decode_utf8(VTermEncoding enc UNUSED, void data_,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	29 uint32_t cp[], int *cpi, int cplen,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	30 const char bytes[], size_t *pos, size_t bytelen)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	31 {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	32 struct UTF8DecoderData *data = data_;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	33
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	34 #ifdef DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	35 printf("BEGIN UTF-8\n");
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	36 #endif
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	37
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	38 for(; pos < bytelen && cpi < cplen; (*pos)++) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	39 unsigned char c = bytes[*pos];
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	40
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	41 #ifdef DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	42 printf(" pos=%zd c=%02x rem=%d\n", *pos, c, data->bytes_remaining);
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	43 #endif
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	44
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	45 if(c < 0x20) // C0
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	46 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	47
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	48 else if(c >= 0x20 && c < 0x7f) {
13186 dc39ef257b60 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Christian Brabandt <cb@256bit.org> parents: 11776 diff changeset	49 if(data->bytes_remaining) {
dc39ef257b60 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Christian Brabandt <cb@256bit.org> parents: 11776 diff changeset	50 data->bytes_remaining = 0;
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	51 cp[(*cpi)++] = UNICODE_INVALID;
13186 dc39ef257b60 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Christian Brabandt <cb@256bit.org> parents: 11776 diff changeset	52 if (*cpi >= cplen)
dc39ef257b60 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Christian Brabandt <cb@256bit.org> parents: 11776 diff changeset	53 break;
dc39ef257b60 patch 8.0.1467: libvterm doesn't handle illegal byte sequence correctly Christian Brabandt <cb@256bit.org> parents: 11776 diff changeset	54 }
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	55 cp[(*cpi)++] = c;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	56 #ifdef DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	57 printf(" UTF-8 char: U+%04x\n", c);
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	58 #endif
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	59 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	60
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	61 else if(c == 0x7f) // DEL
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	62 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	63
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	64 else if(c >= 0x80 && c < 0xc0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	65 if(!data->bytes_remaining) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	66 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	67 continue;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	68 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	69
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	70 data->this_cp <<= 6;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	71 data->this_cp \|= c & 0x3f;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	72 data->bytes_remaining--;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	73
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	74 if(!data->bytes_remaining) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	75 #ifdef DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	76 printf(" UTF-8 raw char U+%04x bytelen=%d ", data->this_cp, data->bytes_total);
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	77 #endif
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	78 // Check for overlong sequences
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	79 switch(data->bytes_total) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	80 case 2:
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	81 if(data->this_cp < 0x0080) data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	82 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	83 case 3:
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	84 if(data->this_cp < 0x0800) data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	85 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	86 case 4:
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	87 if(data->this_cp < 0x10000) data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	88 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	89 case 5:
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	90 if(data->this_cp < 0x200000) data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	91 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	92 case 6:
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	93 if(data->this_cp < 0x4000000) data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	94 break;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	95 }
13770 2449b6ce1456 patch 8.0.1757: unnecessary changes in libvterm Christian Brabandt <cb@256bit.org> parents: 13186 diff changeset	96 // Now look for plain invalid ones
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	97 if((data->this_cp >= 0xD800 && data->this_cp <= 0xDFFF) \|\|
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	98 data->this_cp == 0xFFFE \|\|
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	99 data->this_cp == 0xFFFF)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	100 data->this_cp = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	101 #ifdef DEBUG_PRINT_UTF8
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	102 printf(" char: U+%04x\n", data->this_cp);
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	103 #endif
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	104 cp[(*cpi)++] = data->this_cp;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	105 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	106 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	107
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	108 else if(c >= 0xc0 && c < 0xe0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	109 if(data->bytes_remaining)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	110 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	111
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	112 data->this_cp = c & 0x1f;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	113 data->bytes_total = 2;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	114 data->bytes_remaining = 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	115 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	116
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	117 else if(c >= 0xe0 && c < 0xf0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	118 if(data->bytes_remaining)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	119 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	120
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	121 data->this_cp = c & 0x0f;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	122 data->bytes_total = 3;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	123 data->bytes_remaining = 2;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	124 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	125
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	126 else if(c >= 0xf0 && c < 0xf8) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	127 if(data->bytes_remaining)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	128 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	129
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	130 data->this_cp = c & 0x07;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	131 data->bytes_total = 4;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	132 data->bytes_remaining = 3;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	133 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	134
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	135 else if(c >= 0xf8 && c < 0xfc) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	136 if(data->bytes_remaining)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	137 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	138
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	139 data->this_cp = c & 0x03;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	140 data->bytes_total = 5;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	141 data->bytes_remaining = 4;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	142 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	143
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	144 else if(c >= 0xfc && c < 0xfe) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	145 if(data->bytes_remaining)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	146 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	147
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	148 data->this_cp = c & 0x01;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	149 data->bytes_total = 6;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	150 data->bytes_remaining = 5;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	151 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	152
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	153 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	154 cp[(*cpi)++] = UNICODE_INVALID;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	155 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	156 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	157 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	158
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	159 static VTermEncoding encoding_utf8 = {
17777 811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent Bram Moolenaar <Bram@vim.org> parents: 13770 diff changeset	160 &init_utf8, // init
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent Bram Moolenaar <Bram@vim.org> parents: 13770 diff changeset	161 &decode_utf8 // decode
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	162 };
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	163
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	164 static void decode_usascii(VTermEncoding enc UNUSED, void data UNUSED,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	165 uint32_t cp[], int *cpi, int cplen,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	166 const char bytes[], size_t *pos, size_t bytelen)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	167 {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	168 int is_gr = bytes[*pos] & 0x80;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	169
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	170 for(; pos < bytelen && cpi < cplen; (*pos)++) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	171 unsigned char c = bytes[*pos] ^ is_gr;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	172
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	173 if(c < 0x20 \|\| c == 0x7f \|\| c >= 0x80)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	174 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	175
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	176 cp[(*cpi)++] = c;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	177 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	178 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	179
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	180 static VTermEncoding encoding_usascii = {
17777 811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent Bram Moolenaar <Bram@vim.org> parents: 13770 diff changeset	181 NULL, // init
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent Bram Moolenaar <Bram@vim.org> parents: 13770 diff changeset	182 &decode_usascii // decode
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	183 };
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	184
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	185 struct StaticTableEncoding {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	186 const VTermEncoding enc;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	187 const uint32_t chars[128];
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	188 };
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	189
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	190 static void decode_table(VTermEncoding enc, void data UNUSED,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	191 uint32_t cp[], int *cpi, int cplen,
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	192 const char bytes[], size_t *pos, size_t bytelen)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	193 {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	194 struct StaticTableEncoding table = (struct StaticTableEncoding )enc;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	195 int is_gr = bytes[*pos] & 0x80;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	196
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	197 for(; pos < bytelen && cpi < cplen; (*pos)++) {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	198 unsigned char c = bytes[*pos] ^ is_gr;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	199
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	200 if(c < 0x20 \|\| c == 0x7f \|\| c >= 0x80)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	201 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	202
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	203 if(table->chars[c])
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	204 cp[(*cpi)++] = table->chars[c];
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	205 else
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	206 cp[(*cpi)++] = c;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	207 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	208 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	209
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	210 #include "encoding/DECdrawing.inc"
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	211 #include "encoding/uk.inc"
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	212
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	213 static struct {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	214 VTermEncodingType type;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	215 char designation;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	216 VTermEncoding *enc;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	217 }
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	218 encodings[] = {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	219 { ENC_UTF8, 'u', &encoding_utf8 },
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	220 { ENC_SINGLE_94, '0', (VTermEncoding*)&encoding_DECdrawing },
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	221 { ENC_SINGLE_94, 'A', (VTermEncoding*)&encoding_uk },
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	222 { ENC_SINGLE_94, 'B', &encoding_usascii },
11776 562fa0b252c5 patch 8.0.0770: compiler warning for missing field initializer Christian Brabandt <cb@256bit.org> parents: 11621 diff changeset	223 { 0, 0, NULL },
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	224 };
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	225
20518 a4652d7ec99f patch 8.2.0813: libvterm code is slightly different from upstream Bram Moolenaar <Bram@vim.org> parents: 17777 diff changeset	226 /* This ought to be INTERNAL but isn't because it's used by unit testing */
11621 b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	227 VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	228 {
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	229 int i;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	230 for(i = 0; encodings[i].designation; i++)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	231 if(encodings[i].type == type && encodings[i].designation == designation)
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	232 return encodings[i].enc;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	233 return NULL;
b8299e742f41 patch 8.0.0693: no terminal emulator support Christian Brabandt <cb@256bit.org> parents: diff changeset	234 }

Mercurial > vim

annotate src/libvterm/src/encoding.c @ 20518:a4652d7ec99f v8.2.0813