diff options
Diffstat (limited to 'deps/icu-small/source/common/ustr_imp.h')
| -rw-r--r-- | deps/icu-small/source/common/ustr_imp.h | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/deps/icu-small/source/common/ustr_imp.h b/deps/icu-small/source/common/ustr_imp.h new file mode 100644 index 0000000000..6881bce6a9 --- /dev/null +++ b/deps/icu-small/source/common/ustr_imp.h @@ -0,0 +1,266 @@ +/* +********************************************************************** +* Copyright (C) 1999-2015, International Business Machines +* Corporation and others. All Rights Reserved. +********************************************************************** +* file name: ustr_imp.h +* encoding: US-ASCII +* 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/uiter.h" +#include "ucase.h" + +/** Simple declaration to avoid including unicode/ubrk.h. */ +#ifndef UBRK_TYPEDEF_UBREAK_ITERATOR +# define UBRK_TYPEDEF_UBREAK_ITERATOR + typedef struct UBreakIterator UBreakIterator; +#endif + +#ifndef U_COMPARE_IGNORE_CASE +/* see also unorm.h */ +/** + * Option bit for unorm_compare: + * Perform case-insensitive comparison. + */ +#define U_COMPARE_IGNORE_CASE 0x10000 +#endif + +/** + * 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); + +/** + * Internal API, used by u_strcasecmp() etc. + * Compare strings case-insensitively, + * in code point order or code unit order. + */ +U_CFUNC int32_t +u_strcmpFold(const UChar *s1, int32_t length1, + const UChar *s2, int32_t length2, + uint32_t options, + UErrorCode *pErrorCode); + +/** + * Interanl API, used for detecting length of + * shared prefix case-insensitively. + * @param s1 input string 1 + * @param length1 length of string 1, or -1 (NULL terminated) + * @param s2 input string 2 + * @param length2 length of string 2, or -1 (NULL terminated) + * @param options compare options + * @param matchLen1 (output) length of partial prefix match in s1 + * @param matchLen2 (output) length of partial prefix match in s2 + * @param pErrorCode receives error status + */ +U_CAPI void +u_caseInsensitivePrefixMatch(const UChar *s1, int32_t length1, + const UChar *s2, int32_t length2, + uint32_t options, + int32_t *matchLen1, int32_t *matchLen2, + UErrorCode *pErrorCode); + +/** + * Are the Unicode properties loaded? + * This must be used before internal functions are called that do + * not perform this check. + * Generate a debug assertion failure if data is not loaded. + */ +U_CFUNC UBool +uprv_haveProperties(UErrorCode *pErrorCode); + +/** + * Load the Unicode property data. + * Intended primarily for use from u_init(). + * Has no effect if property data is already loaded. + * NOT thread safe. + */ +/*U_CFUNC int8_t +uprv_loadPropsData(UErrorCode *errorCode);*/ + +/* + * Internal string casing functions implementing + * ustring.h/ustrcase.c and UnicodeString case mapping functions. + */ + +struct UCaseMap { + const UCaseProps *csp; +#if !UCONFIG_NO_BREAK_ITERATION + UBreakIterator *iter; /* We adopt the iterator, so we own it. */ +#endif + char locale[32]; + int32_t locCache; + uint32_t options; +}; + +#ifndef __UCASEMAP_H__ +typedef struct UCaseMap UCaseMap; +#endif + +#if UCONFIG_NO_BREAK_ITERATION +# define UCASEMAP_INITIALIZER { NULL, { 0 }, 0, 0 } +#else +# define UCASEMAP_INITIALIZER { NULL, NULL, { 0 }, 0, 0 } +#endif + +U_CFUNC void +ustrcase_setTempCaseMapLocale(UCaseMap *csm, const char *locale); + +#ifndef U_STRING_CASE_MAPPER_DEFINED +#define U_STRING_CASE_MAPPER_DEFINED + +/** + * String case mapping function type, used by ustrcase_map(). + * All error checking must be done. + * The UCaseMap must be fully initialized, with locale and/or iter set as needed. + * src and dest must not overlap. + */ +typedef int32_t U_CALLCONV +UStringCaseMapper(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UErrorCode *pErrorCode); + +#endif + +/** Implements UStringCaseMapper. */ +U_CFUNC int32_t U_CALLCONV +ustrcase_internalToLower(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UErrorCode *pErrorCode); + +/** Implements UStringCaseMapper. */ +U_CFUNC int32_t U_CALLCONV +ustrcase_internalToUpper(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UErrorCode *pErrorCode); + +#if !UCONFIG_NO_BREAK_ITERATION + +/** Implements UStringCaseMapper. */ +U_CFUNC int32_t U_CALLCONV +ustrcase_internalToTitle(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UErrorCode *pErrorCode); + +#endif + +/** Implements UStringCaseMapper. */ +U_CFUNC int32_t U_CALLCONV +ustrcase_internalFold(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UErrorCode *pErrorCode); + +/** + * Implements argument checking and buffer handling + * for string case mapping as a common function. + */ +U_CFUNC int32_t +ustrcase_map(const UCaseMap *csm, + UChar *dest, int32_t destCapacity, + const UChar *src, int32_t srcLength, + UStringCaseMapper *stringCaseMapper, + UErrorCode *pErrorCode); + +/** + * UTF-8 string case mapping function type, used by ucasemap_mapUTF8(). + * UTF-8 version of UStringCaseMapper. + * All error checking must be done. + * The UCaseMap must be fully initialized, with locale and/or iter set as needed. + * src and dest must not overlap. + */ +typedef int32_t U_CALLCONV +UTF8CaseMapper(const UCaseMap *csm, + uint8_t *dest, int32_t destCapacity, + const uint8_t *src, int32_t srcLength, + UErrorCode *pErrorCode); + +/** Implements UTF8CaseMapper. */ +U_CFUNC int32_t U_CALLCONV +ucasemap_internalUTF8ToTitle(const UCaseMap *csm, + uint8_t *dest, int32_t destCapacity, + const uint8_t *src, int32_t srcLength, + UErrorCode *pErrorCode); + +/** + * Implements argument checking and buffer handling + * for UTF-8 string case mapping as a common function. + */ +U_CFUNC int32_t +ucasemap_mapUTF8(const UCaseMap *csm, + uint8_t *dest, int32_t destCapacity, + const uint8_t *src, int32_t srcLength, + UTF8CaseMapper *stringCaseMapper, + UErrorCode *pErrorCode); + +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); + +#endif |