+++ /dev/null
-
-#ifndef _CONVERTUTF_H_
-#define _CONVERTUTF_H_
-
-/*
- * Copyright 2001-2004 Unicode, Inc.
- *
- * Disclaimer
- *
- * This source code is provided as is by Unicode, Inc. No claims are
- * made as to fitness for any particular purpose. No warranties of any
- * kind are expressed or implied. The recipient agrees to determine
- * applicability of information provided. If this file has been
- * purchased on magnetic or optical media from Unicode, Inc., the
- * sole remedy for any claim will be exchange of defective media
- * within 90 days of receipt.
- *
- * Limitations on Rights to Redistribute This Code
- *
- * Unicode, Inc. hereby grants the right to freely use the information
- * supplied in this file in the creation of products supporting the
- * Unicode Standard, and to make copies of this file in any form
- * for internal or external distribution as long as this notice
- * remains attached.
- */
-
-/* ---------------------------------------------------------------------
-
- Conversions between UTF32, UTF-16, and UTF-8. Header file.
-
- Several funtions are included here, forming a complete set of
- conversions between the three formats. UTF-7 is not included
- here, but is handled in a separate source file.
-
- Each of these routines takes pointers to input buffers and output
- buffers. The input buffers are const.
-
- Each routine converts the text between *sourceStart and sourceEnd,
- putting the result into the buffer between *targetStart and
- targetEnd. Note: the end pointers are *after* the last item: e.g.
- *(sourceEnd - 1) is the last item.
-
- The return result indicates whether the conversion was successful,
- and if not, whether the problem was in the source or target buffers.
- (Only the first encountered problem is indicated.)
-
- After the conversion, *sourceStart and *targetStart are both
- updated to point to the end of last text successfully converted in
- the respective buffers.
-
- Input parameters:
- sourceStart - pointer to a pointer to the source buffer.
- The contents of this are modified on return so that
- it points at the next thing to be converted.
- targetStart - similarly, pointer to pointer to the target buffer.
- sourceEnd, targetEnd - respectively pointers to the ends of the
- two buffers, for overflow checking only.
-
- These conversion functions take a ConversionFlags argument. When this
- flag is set to strict, both irregular sequences and isolated surrogates
- will cause an error. When the flag is set to lenient, both irregular
- sequences and isolated surrogates are converted.
-
- Whether the flag is strict or lenient, all illegal sequences will cause
- an error return. This includes sequences such as: <F4 90 80 80>, <C0 80>,
- or <A0> in UTF-8, and values above 0x10FFFF in UTF-32. Conformant code
- must check for illegal sequences.
-
- When the flag is set to lenient, characters over 0x10FFFF are converted
- to the replacement character; otherwise (when the flag is set to strict)
- they constitute an error.
-
- Output parameters:
- The value "sourceIllegal" is returned from some routines if the input
- sequence is malformed. When "sourceIllegal" is returned, the source
- value will point to the illegal value that caused the problem. E.g.,
- in UTF-8 when a sequence is malformed, it points to the start of the
- malformed sequence.
-
- Author: Mark E. Davis, 1994.
- Rev History: Rick McGowan, fixes & updates May 2001.
- Fixes & updates, Sept 2001.
-
------------------------------------------------------------------------- */
-
-/* ---------------------------------------------------------------------
- The following 4 definitions are compiler-specific.
- The C standard does not guarantee that wchar_t has at least
- 16 bits, so wchar_t is no less portable than unsigned short!
- All should be unsigned values to avoid sign extension during
- bit mask & shift operations.
------------------------------------------------------------------------- */
-
-#include <stdint.h>
-#include <stdbool.h>
-
-typedef uint32_t UTF32; /* exactly 32 bits */
-typedef uint16_t UTF16; /* exactly 16 bits */
-typedef uint8_t UTF8; /* exactly 8 bits */
-
-/* Some fundamental constants */
-#define UNI_REPLACEMENT_CHAR (UTF32)0x0000FFFD
-#define UNI_MAX_BMP (UTF32)0x0000FFFF
-#define UNI_MAX_UTF16 (UTF32)0x0010FFFF
-#define UNI_MAX_UTF32 (UTF32)0x7FFFFFFF
-#define UNI_MAX_LEGAL_UTF32 (UTF32)0x0010FFFF
-
-typedef enum {
- conversionOK, /* conversion successful */
- sourceExhausted, /* partial character in source, but hit end */
- targetExhausted, /* insuff. room in target for conversion */
- sourceIllegal /* source sequence is illegal/malformed */
-} ConversionResult;
-
-typedef enum {
- strictConversion = 0,
- lenientConversion
-} ConversionFlags;
-
-/* This is for C++ and does no harm in C */
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-ConversionResult ConvertUTF8toUTF16 (
- const UTF8** sourceStart, const UTF8* sourceEnd,
- UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags);
-
-ConversionResult ConvertUTF16toUTF8 (
- const UTF16** sourceStart, const UTF16* sourceEnd,
- UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags);
-
-ConversionResult ConvertUTF8toUTF32 (
- const UTF8** sourceStart, const UTF8* sourceEnd,
- UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags);
-
-ConversionResult ConvertUTF32toUTF8 (
- const UTF32** sourceStart, const UTF32* sourceEnd,
- UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags);
-
-ConversionResult ConvertUTF16toUTF32 (
- const UTF16** sourceStart, const UTF16* sourceEnd,
- UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags);
-
-ConversionResult ConvertUTF32toUTF16 (
- const UTF32** sourceStart, const UTF32* sourceEnd,
- UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags);
-
-bool isLegalUTF8Sequence(const UTF8 *source, const UTF8 *sourceEnd);
-
-#ifdef __cplusplus
-}
-#endif
-
-/* --------------------------------------------------------------------- */
-
-#endif // _CONVERTUTF_H_
-
projects / chaz / yoink / blobdiff