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unicode: Unify check for UTF-16 BOM

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Adds utf16_has_bom function

Change-Id: I67ea474c9cf6ca6e6684351c2f54131164b7903c
This commit is contained in:
Roman Artiukhin 2024-12-11 16:00:55 +02:00
parent 11fbbc7826
commit a23002cd5e
4 changed files with 43 additions and 33 deletions
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2
firmware/include/rbunicode.h
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@ -29,6 +29,7 @@
#define _RBUNICODE_H_
#include "config.h"
#include <stdbool.h>
#define MASK 0xC0 /* 11000000 */
#define COMP 0x80 /* 10x */
@ -58,6 +59,7 @@ unsigned char* utf8encode(unsigned long ucs, unsigned char *utf8);
unsigned char* iso_decode(const unsigned char *latin1, unsigned char *utf8, int cp, int count);
unsigned char* utf16LEdecode(const unsigned char *utf16, unsigned char *utf8, int count);
unsigned char* utf16BEdecode(const unsigned char *utf16, unsigned char *utf8, int count);
bool utf16_has_bom(const unsigned char *utf16, bool *le);
unsigned long utf8length(const unsigned char *utf8);
const unsigned char* utf8decode(const unsigned char *utf8, unsigned short *ucs);
void set_codepage(int cp);