/usr/include/ptexenc/unicode.h is in libptexenc-dev 2013.20130729.30972-2ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | /*
unicode.h -- utilities for Unicode
written by N. Tsuchimura
*/
#ifndef PTEXENC_UNICODE_H
#define PTEXENC_UNICODE_H
#include <kpathsea/types.h>
#include <ptexenc/ptexenc.h> /* for PTENCDLL */
/* determine if UTF-8 character or not */
extern boolean isUTF8(int length, int nth, int c);
extern int UTF8length(int first_byte);
extern int UTF8Slength(unsigned char *buff, int buff_len);
extern long UTF8StoUCS(unsigned char *s);
extern long PTENCDLL UCStoUTF8(long ucs);
extern long UCStoUPTEX(long ucs);
extern long UPTEXtoUCS(long uptex);
#define LONG(a,b,c,d) ( ((long)(a)<<24) | ((long)(b)<<16) | ((c)<<8) | (d) )
#define BYTE1(x) (((x)>>24) & 0xff)
#define BYTE2(x) (((x)>>16) & 0xff)
#define BYTE3(x) (((x)>> 8) & 0xff)
#define BYTE4(x) ( (x) & 0xff)
/* UTF-8 -> UCS */
#define UTF8BtoUCS(a,b) ((((a)&0x1f) << 6) | ((b)&0x3f))
#define UTF8CtoUCS(a,b,c) ((((a)&0x0f) <<12) | (((b)&0x3f) << 6) | ((c)&0x3f))
#define UTF8DtoUCS(a,b,c,d) ((((long)(a)&0x07) <<18) | \
(((long)(b)&0x3f) <<12) | \
(((long)(c)&0x3f) << 6) | ((d)&0x3f))
/* UCS -> UTF-8 */
#define UCStoUTF8B1(x) (0xc0 + (((x) >> 6) & 0x1f))
#define UCStoUTF8B2(x) (0x80 + (((x) ) & 0x3f))
#define UCStoUTF8C1(x) (0xe0 + (((x) >> 12) & 0x0f))
#define UCStoUTF8C2(x) (0x80 + (((x) >> 6) & 0x3f))
#define UCStoUTF8C3(x) (0x80 + (((x) ) & 0x3f))
#define UCStoUTF8D1(x) (0xf0 + (((x) >> 18) & 0x07))
#define UCStoUTF8D2(x) (0x80 + (((x) >> 12) & 0x3f))
#define UCStoUTF8D3(x) (0x80 + (((x) >> 6) & 0x3f))
#define UCStoUTF8D4(x) (0x80 + (((x) ) & 0x3f))
/* UTF-32 over U+FFFF -> UTF-16 surrogate pair */
#define UTF32toUTF16HS(x) (0xd800 + ((((x)-0x10000) >> 10) & 0x3ff))
#define UTF32toUTF16LS(x) (0xdc00 + ( (x) & 0x3ff))
#endif /* PTEXENC_UNICODE_H */
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