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More display update + add UTF8 -> CP1252

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philippe44
2020-01-27 20:34:03 -08:00
parent 89f15619c7
commit 4857ec39db
12 changed files with 407 additions and 496 deletions
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components/tools/utf8.c Normal file
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// Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
// Copyright (c) 2017 ZephRay <zephray@outlook.com>
//
// utf8to1252 - almost equivalent to iconv -f utf-8 -t windows-1252, but better
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "esp_log.h"
#define TAG "aa"
#define UTF8_ACCEPT 0
#define UTF8_REJECT 1
static const uint8_t utf8d[] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..1f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 20..3f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 40..5f
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 60..7f
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, // 80..9f
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, // a0..bf
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // c0..df
0xa,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x3,0x3, // e0..ef
0xb,0x6,0x6,0x6,0x5,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8, // f0..ff
0x0,0x1,0x2,0x3,0x5,0x8,0x7,0x1,0x1,0x1,0x4,0x6,0x1,0x1,0x1,0x1, // s0..s0
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1, // s1..s2
1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1, // s3..s4
1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1,3,1,1,1,1,1,1, // s5..s6
1,3,1,1,1,1,1,3,1,3,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1, // s7..s8
};
static uint32_t decode(uint32_t* state, uint32_t* codep, uint32_t byte) {
uint32_t type = utf8d[byte];
*codep = (*state != UTF8_ACCEPT) ?
(byte & 0x3fu) | (*codep << 6) :
(0xff >> type) & (byte);
*state = utf8d[256 + *state*16 + type];
return *state;
}
static uint8_t UNICODEtoCP1252(uint16_t chr) {
if (chr <= 0xff)
return (chr&0xff);
else {
ESP_LOGI(TAG, "some multi-byte %hx", chr);
switch(chr) {
case 0x20ac: return 0x80; break;
case 0x201a: return 0x82; break;
case 0x0192: return 0x83; break;
case 0x201e: return 0x84; break;
case 0x2026: return 0x85; break;
case 0x2020: return 0x86; break;
case 0x2021: return 0x87; break;
case 0x02c6: return 0x88; break;
case 0x2030: return 0x89; break;
case 0x0160: return 0x8a; break;
case 0x2039: return 0x8b; break;
case 0x0152: return 0x8c; break;
case 0x017d: return 0x8e; break;
case 0x2018: return 0x91; break;
case 0x2019: return 0x92; break;
case 0x201c: return 0x93; break;
case 0x201d: return 0x94; break;
case 0x2022: return 0x95; break;
case 0x2013: return 0x96; break;
case 0x2014: return 0x97; break;
case 0x02dc: return 0x98; break;
case 0x2122: return 0x99; break;
case 0x0161: return 0x9a; break;
case 0x203a: return 0x9b; break;
case 0x0153: return 0x9c; break;
case 0x017e: return 0x9e; break;
case 0x0178: return 0x9f; break;
default: return 0x00; break;
}
}
}
void utf8_decode(char *src) {
uint32_t codep = 0, state = UTF8_ACCEPT;
char *dst = src;
while (src && *src) {
if (!decode(&state, &codep, *src++)) *dst++ = UNICODEtoCP1252(codep);
}
*dst = '\0';
}