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Diffstat (limited to 'vendor/icu/src/ustr_imp.h')
-rw-r--r-- | vendor/icu/src/ustr_imp.h | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/vendor/icu/src/ustr_imp.h b/vendor/icu/src/ustr_imp.h deleted file mode 100644 index 258e49dc49..0000000000 --- a/vendor/icu/src/ustr_imp.h +++ /dev/null @@ -1,143 +0,0 @@ -// © 2016 and later: Unicode, Inc. and others. -// License & terms of use: http://www.unicode.org/copyright.html -/* -********************************************************************** -* Copyright (C) 1999-2015, International Business Machines -* Corporation and others. All Rights Reserved. -********************************************************************** -* file name: ustr_imp.h -* encoding: UTF-8 -* tab size: 8 (not used) -* indentation:4 -* -* created on: 2001jan30 -* created by: Markus W. Scherer -*/ - -#ifndef __USTR_IMP_H__ -#define __USTR_IMP_H__ - -#include <unicode/utypes.h> -#include <unicode/utf8.h> - -/** - * Internal option for unorm_cmpEquivFold() for strncmp style. - * If set, checks for both string length and terminating NUL. - */ -#define _STRNCMP_STYLE 0x1000 - -/** - * Compare two strings in code point order or code unit order. - * Works in strcmp style (both lengths -1), - * strncmp style (lengths equal and >=0, flag TRUE), - * and memcmp/UnicodeString style (at least one length >=0). - */ -U_CFUNC int32_t U_EXPORT2 -uprv_strCompare(const UChar *s1, int32_t length1, - const UChar *s2, int32_t length2, - UBool strncmpStyle, UBool codePointOrder); - -U_CAPI int32_t U_EXPORT2 -ustr_hashUCharsN(const UChar *str, int32_t length); - -U_CAPI int32_t U_EXPORT2 -ustr_hashCharsN(const char *str, int32_t length); - -U_CAPI int32_t U_EXPORT2 -ustr_hashICharsN(const char *str, int32_t length); - -/** - * NUL-terminate a UChar * string if possible. - * If length < destCapacity then NUL-terminate. - * If length == destCapacity then do not terminate but set U_STRING_NOT_TERMINATED_WARNING. - * If length > destCapacity then do not terminate but set U_BUFFER_OVERFLOW_ERROR. - * - * @param dest Destination buffer, can be NULL if destCapacity==0. - * @param destCapacity Number of UChars available at dest. - * @param length Number of UChars that were (to be) written to dest. - * @param pErrorCode ICU error code. - * @return length - */ -U_CAPI int32_t U_EXPORT2 -u_terminateUChars(UChar *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode); - -/** - * NUL-terminate a char * string if possible. - * Same as u_terminateUChars() but for a different string type. - */ -U_CAPI int32_t U_EXPORT2 -u_terminateChars(char *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode); - -/** - * NUL-terminate a UChar32 * string if possible. - * Same as u_terminateUChars() but for a different string type. - */ -U_CAPI int32_t U_EXPORT2 -u_terminateUChar32s(UChar32 *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode); - -/** - * NUL-terminate a wchar_t * string if possible. - * Same as u_terminateUChars() but for a different string type. - */ -U_CAPI int32_t U_EXPORT2 -u_terminateWChars(wchar_t *dest, int32_t destCapacity, int32_t length, UErrorCode *pErrorCode); - -/** - * Counts the bytes of any whole valid sequence for a UTF-8 lead byte. - * Returns 1 for ASCII 0..0x7f. - * Returns 0 for 0x80..0xc1 as well as for 0xf5..0xff. - * leadByte might be evaluated multiple times. - * - * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff. - * @return 0..4 - */ -#define U8_COUNT_BYTES(leadByte) \ - (U8_IS_SINGLE(leadByte) ? 1 : U8_COUNT_BYTES_NON_ASCII(leadByte)) - -/** - * Counts the bytes of any whole valid sequence for a UTF-8 lead byte. - * Returns 0 for 0x00..0xc1 as well as for 0xf5..0xff. - * leadByte might be evaluated multiple times. - * - * @param leadByte The first byte of a UTF-8 sequence. Must be 0..0xff. - * @return 0 or 2..4 - */ -#define U8_COUNT_BYTES_NON_ASCII(leadByte) \ - (U8_IS_LEAD(leadByte) ? ((uint8_t)(leadByte)>=0xe0)+((uint8_t)(leadByte)>=0xf0)+2 : 0) - -#ifdef __cplusplus - -U_NAMESPACE_BEGIN - -class UTF8 { -public: - UTF8() = delete; // all static - - /** - * Is t a valid UTF-8 trail byte? - * - * @param prev Must be the preceding lead byte if i==1 and length>=3; - * otherwise ignored. - * @param t The i-th byte following the lead byte. - * @param i The index (1..3) of byte t in the byte sequence. 0<i<length - * @param length The length (2..4) of the byte sequence according to the lead byte. - * @return TRUE if t is a valid trail byte in this context. - */ - static inline UBool isValidTrail(int32_t prev, uint8_t t, int32_t i, int32_t length) { - // The first trail byte after a 3- or 4-byte lead byte - // needs to be validated together with its lead byte. - if (length <= 2 || i > 1) { - return U8_IS_TRAIL(t); - } else if (length == 3) { - return U8_IS_VALID_LEAD3_AND_T1(prev, t); - } else { // length == 4 - return U8_IS_VALID_LEAD4_AND_T1(prev, t); - } - } -}; - -U_NAMESPACE_END - -#endif // __cplusplus - -#endif |