vrshoot
diff libs/assimp/ConvertUTF/ConvertUTF.h @ 0:b2f14e535253
initial commit
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Sat, 01 Feb 2014 19:58:19 +0200 |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/libs/assimp/ConvertUTF/ConvertUTF.h Sat Feb 01 19:58:19 2014 +0200 1.3 @@ -0,0 +1,151 @@ 1.4 +/* 1.5 + * Copyright 2001-2004 Unicode, Inc. 1.6 + * 1.7 + * Disclaimer 1.8 + * 1.9 + * This source code is provided as is by Unicode, Inc. No claims are 1.10 + * made as to fitness for any particular purpose. No warranties of any 1.11 + * kind are expressed or implied. The recipient agrees to determine 1.12 + * applicability of information provided. If this file has been 1.13 + * purchased on magnetic or optical media from Unicode, Inc., the 1.14 + * sole remedy for any claim will be exchange of defective media 1.15 + * within 90 days of receipt. 1.16 + * 1.17 + * Limitations on Rights to Redistribute This Code 1.18 + * 1.19 + * Unicode, Inc. hereby grants the right to freely use the information 1.20 + * supplied in this file in the creation of products supporting the 1.21 + * Unicode Standard, and to make copies of this file in any form 1.22 + * for internal or external distribution as long as this notice 1.23 + * remains attached. 1.24 + */ 1.25 +#ifndef CONVERTUTF_H 1.26 +#define CONVERTUTF_H 1.27 +/* --------------------------------------------------------------------- 1.28 + 1.29 + Conversions between UTF32, UTF-16, and UTF-8. Header file. 1.30 + 1.31 + Several funtions are included here, forming a complete set of 1.32 + conversions between the three formats. UTF-7 is not included 1.33 + here, but is handled in a separate source file. 1.34 + 1.35 + Each of these routines takes pointers to input buffers and output 1.36 + buffers. The input buffers are const. 1.37 + 1.38 + Each routine converts the text between *sourceStart and sourceEnd, 1.39 + putting the result into the buffer between *targetStart and 1.40 + targetEnd. Note: the end pointers are *after* the last item: e.g. 1.41 + *(sourceEnd - 1) is the last item. 1.42 + 1.43 + The return result indicates whether the conversion was successful, 1.44 + and if not, whether the problem was in the source or target buffers. 1.45 + (Only the first encountered problem is indicated.) 1.46 + 1.47 + After the conversion, *sourceStart and *targetStart are both 1.48 + updated to point to the end of last text successfully converted in 1.49 + the respective buffers. 1.50 + 1.51 + Input parameters: 1.52 + sourceStart - pointer to a pointer to the source buffer. 1.53 + The contents of this are modified on return so that 1.54 + it points at the next thing to be converted. 1.55 + targetStart - similarly, pointer to pointer to the target buffer. 1.56 + sourceEnd, targetEnd - respectively pointers to the ends of the 1.57 + two buffers, for overflow checking only. 1.58 + 1.59 + These conversion functions take a ConversionFlags argument. When this 1.60 + flag is set to strict, both irregular sequences and isolated surrogates 1.61 + will cause an error. When the flag is set to lenient, both irregular 1.62 + sequences and isolated surrogates are converted. 1.63 + 1.64 + Whether the flag is strict or lenient, all illegal sequences will cause 1.65 + an error return. This includes sequences such as: <F4 90 80 80>, <C0 80>, 1.66 + or <A0> in UTF-8, and values above 0x10FFFF in UTF-32. Conformant code 1.67 + must check for illegal sequences. 1.68 + 1.69 + When the flag is set to lenient, characters over 0x10FFFF are converted 1.70 + to the replacement character; otherwise (when the flag is set to strict) 1.71 + they constitute an error. 1.72 + 1.73 + Output parameters: 1.74 + The value "sourceIllegal" is returned from some routines if the input 1.75 + sequence is malformed. When "sourceIllegal" is returned, the source 1.76 + value will point to the illegal value that caused the problem. E.g., 1.77 + in UTF-8 when a sequence is malformed, it points to the start of the 1.78 + malformed sequence. 1.79 + 1.80 + Author: Mark E. Davis, 1994. 1.81 + Rev History: Rick McGowan, fixes & updates May 2001. 1.82 + Fixes & updates, Sept 2001. 1.83 + 1.84 +------------------------------------------------------------------------ */ 1.85 + 1.86 +/* --------------------------------------------------------------------- 1.87 + The following 4 definitions are compiler-specific. 1.88 + The C standard does not guarantee that wchar_t has at least 1.89 + 16 bits, so wchar_t is no less portable than unsigned short! 1.90 + All should be unsigned values to avoid sign extension during 1.91 + bit mask & shift operations. 1.92 +------------------------------------------------------------------------ */ 1.93 + 1.94 +typedef unsigned long UTF32; /* at least 32 bits */ 1.95 +typedef unsigned short UTF16; /* at least 16 bits */ 1.96 +typedef unsigned char UTF8; /* typically 8 bits */ 1.97 +typedef unsigned char Boolean; /* 0 or 1 */ 1.98 + 1.99 +/* Some fundamental constants */ 1.100 +#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD 1.101 +#define UNI_MAX_BMP (UTF32)0x0000FFFF 1.102 +#define UNI_MAX_UTF16 (UTF32)0x0010FFFF 1.103 +#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF 1.104 +#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF 1.105 + 1.106 +typedef enum { 1.107 + conversionOK, /* conversion successful */ 1.108 + sourceExhausted, /* partial character in source, but hit end */ 1.109 + targetExhausted, /* insuff. room in target for conversion */ 1.110 + sourceIllegal /* source sequence is illegal/malformed */ 1.111 +} ConversionResult; 1.112 + 1.113 +typedef enum { 1.114 + strictConversion = 0, 1.115 + lenientConversion 1.116 +} ConversionFlags; 1.117 + 1.118 +/* This is for C++ and does no harm in C */ 1.119 +#ifdef __cplusplus 1.120 +extern "C" { 1.121 +#endif 1.122 + 1.123 +ConversionResult ConvertUTF8toUTF16 ( 1.124 + const UTF8** sourceStart, const UTF8* sourceEnd, 1.125 + UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags); 1.126 + 1.127 +ConversionResult ConvertUTF16toUTF8 ( 1.128 + const UTF16** sourceStart, const UTF16* sourceEnd, 1.129 + UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags); 1.130 + 1.131 +ConversionResult ConvertUTF8toUTF32 ( 1.132 + const UTF8** sourceStart, const UTF8* sourceEnd, 1.133 + UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags); 1.134 + 1.135 +ConversionResult ConvertUTF32toUTF8 ( 1.136 + const UTF32** sourceStart, const UTF32* sourceEnd, 1.137 + UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags); 1.138 + 1.139 +ConversionResult ConvertUTF16toUTF32 ( 1.140 + const UTF16** sourceStart, const UTF16* sourceEnd, 1.141 + UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags); 1.142 + 1.143 +ConversionResult ConvertUTF32toUTF16 ( 1.144 + const UTF32** sourceStart, const UTF32* sourceEnd, 1.145 + UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags); 1.146 + 1.147 +Boolean isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd); 1.148 + 1.149 +#ifdef __cplusplus 1.150 +} 1.151 +#endif 1.152 + 1.153 +/* --------------------------------------------------------------------- */ 1.154 +#endif // CONVERTUTF_H