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"Smart pointer" class, closes a URegularExpression via uregex_close().

C++ API: "Smart pointers" for use with and in ICU4C C++ code.

#define U_DEFINE_LOCAL_OPEN_POINTER(LocalPointerClassName, Type, closeFunction)

"Smart pointer" definition macro, deletes objects via the closeFunction.

C API: Parse Error Information.

#define U_CALLCONV

Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary in callback function typedefs to ma...

A UParseError struct is used to returned detailed information about parsing errors.

UText struct.

#define U_CDECL_END

This is used to end a declaration of a library private ICU C API.

int8_t UBool

The ICU boolean type, a signed-byte integer.

#define U_CAPI

This is used to declare a function as a public ICU C API.

char16_t UChar

The base type for UTF-16 code units and pointers.

#define U_CDECL_BEGIN

This is used to begin a declaration of a library private ICU C API.

UBool URegexFindProgressCallback(const void *context, int64_t matchIndex)

Function pointer for a regular expression find callback function.

U_CAPI UBool uregex_find64(URegularExpression *regexp, int64_t startIndex, UErrorCode *status)

64bit version of uregex_find.

U_CAPI UText * uregex_patternUText(const URegularExpression *regexp, UErrorCode *status)

Returns the source text of the pattern for this regular expression.

UBool URegexMatchCallback(const void *context, int32_t steps)

Function pointer for a regular expression matching callback function.

U_CAPI const UChar * uregex_pattern(const URegularExpression *regexp, int32_t *patLength, UErrorCode *status)

Returns a pointer to the source form of the pattern for this regular expression.

U_CAPI int32_t uregex_regionEnd(const URegularExpression *regexp, UErrorCode *status)

Reports the end index (exclusive) of the matching region for this URegularExpression.

U_CAPI void uregex_appendReplacementUText(URegularExpression *regexp, UText *replacementText, UText *dest, UErrorCode *status)

Implements a replace operation intended to be used as part of an incremental find-and-replace.

U_CAPI UText * uregex_replaceAllUText(URegularExpression *regexp, UText *replacement, UText *dest, UErrorCode *status)

Replaces every substring of the input that matches the pattern with the given replacement string.

U_CAPI URegularExpression * uregex_openUText(UText *pattern, uint32_t flags, UParseError *pe, UErrorCode *status)

Open (compile) an ICU regular expression.

U_CAPI void uregex_reset64(URegularExpression *regexp, int64_t index, UErrorCode *status)

64bit version of uregex_reset.

U_CAPI int64_t uregex_start64(URegularExpression *regexp, int32_t groupNum, UErrorCode *status)

64bit version of uregex_start.

U_CAPI void uregex_setRegionAndStart(URegularExpression *regexp, int64_t regionStart, int64_t regionLimit, int64_t startIndex, UErrorCode *status)

Set the matching region and the starting index for subsequent matches in a single operation.

U_CAPI int32_t uregex_appendReplacement(URegularExpression *regexp, const UChar *replacementText, int32_t replacementLength, UChar **destBuf, int32_t *destCapacity, UErrorCode *status)

Implements a replace operation intended to be used as part of an incremental find-and-replace.

U_CAPI int32_t uregex_getTimeLimit(const URegularExpression *regexp, UErrorCode *status)

Get the time limit for for matches with this URegularExpression.

U_CAPI void uregex_useTransparentBounds(URegularExpression *regexp, UBool b, UErrorCode *status)

Sets the transparency of region bounds for this URegularExpression.

U_CAPI int32_t uregex_groupNumberFromCName(URegularExpression *regexp, const char *groupName, int32_t nameLength, UErrorCode *status)

Get the group number corresponding to a named capture group.

U_CAPI int32_t uregex_split(URegularExpression *regexp, UChar *destBuf, int32_t destCapacity, int32_t *requiredCapacity, UChar *destFields[], int32_t destFieldsCapacity, UErrorCode *status)

Split a string into fields.

U_CAPI UBool uregex_matches64(URegularExpression *regexp, int64_t startIndex, UErrorCode *status)

64bit version of uregex_matches.

U_CAPI void uregex_reset(URegularExpression *regexp, int32_t index, UErrorCode *status)

Reset any saved state from the previous match.

U_CAPI int32_t uregex_flags(const URegularExpression *regexp, UErrorCode *status)

Get the match mode flags that were specified when compiling this regular expression.

U_CAPI UText * uregex_groupUText(URegularExpression *regexp, int32_t groupNum, UText *dest, int64_t *groupLength, UErrorCode *status)

Returns a shallow immutable clone of the entire input string with the current index set to the beginn...

U_CAPI int64_t uregex_regionStart64(const URegularExpression *regexp, UErrorCode *status)

64bit version of uregex_regionStart.

U_CAPI void uregex_setUText(URegularExpression *regexp, UText *text, UErrorCode *status)

Set the subject text string upon which the regular expression will look for matches.

U_CAPI void uregex_setRegion64(URegularExpression *regexp, int64_t regionStart, int64_t regionLimit, UErrorCode *status)

64bit version of uregex_setRegion.

U_CAPI int64_t uregex_end64(URegularExpression *regexp, int32_t groupNum, UErrorCode *status)

64bit version of uregex_end.

struct URegularExpression URegularExpression

Structure representing a compiled regular expression, plus the results of a match operation.

U_CAPI UBool uregex_find(URegularExpression *regexp, int32_t startIndex, UErrorCode *status)

Find the first matching substring of the input string that matches the pattern.

U_CAPI const UChar * uregex_getText(URegularExpression *regexp, int32_t *textLength, UErrorCode *status)

Get the subject text that is currently associated with this regular expression object.

U_CAPI void uregex_useAnchoringBounds(URegularExpression *regexp, UBool b, UErrorCode *status)

Set whether this URegularExpression is using Anchoring Bounds for its region.

U_CAPI URegularExpression * uregex_open(const UChar *pattern, int32_t patternLength, uint32_t flags, UParseError *pe, UErrorCode *status)

Open (compile) an ICU regular expression.

U_CAPI int32_t uregex_appendTail(URegularExpression *regexp, UChar **destBuf, int32_t *destCapacity, UErrorCode *status)

As the final step in a find-and-replace operation, append the remainder of the input string,...

U_CAPI void uregex_close(URegularExpression *regexp)

Close the regular expression, recovering all resources (memory) it was holding.

U_CAPI URegularExpression * uregex_openC(const char *pattern, uint32_t flags, UParseError *pe, UErrorCode *status)

Open (compile) an ICU regular expression.

U_CAPI UBool uregex_lookingAt(URegularExpression *regexp, int32_t startIndex, UErrorCode *status)

Attempts to match the input string, starting from the specified index, against the pattern.

URegexpFlag

Constants for Regular Expression Match Modes.

@ UREGEX_DOTALL

If set, '.

@ UREGEX_COMMENTS

Allow white space and comments within patterns.

@ UREGEX_MULTILINE

Control behavior of "$" and "^" If set, recognize line terminators within string, otherwise,...

@ UREGEX_LITERAL

If set, treat the entire pattern as a literal string.

@ UREGEX_CASE_INSENSITIVE

Enable case insensitive matching.

@ UREGEX_CANON_EQ

Forces normalization of pattern and strings.

@ UREGEX_ERROR_ON_UNKNOWN_ESCAPES

Error on Unrecognized backslash escapes.

@ UREGEX_UWORD

Unicode word boundaries.

@ UREGEX_UNIX_LINES

Unix-only line endings.

U_CAPI UBool uregex_findNext(URegularExpression *regexp, UErrorCode *status)

Find the next pattern match in the input string.

U_CAPI UText * uregex_getUText(URegularExpression *regexp, UText *dest, UErrorCode *status)

Get the subject text that is currently associated with this regular expression object.

U_CAPI UBool uregex_requireEnd(const URegularExpression *regexp, UErrorCode *status)

Return true the most recent match succeeded and additional input could cause it to fail.

U_CAPI int32_t uregex_groupCount(URegularExpression *regexp, UErrorCode *status)

Get the number of capturing groups in this regular expression's pattern.

U_CAPI void uregex_refreshUText(URegularExpression *regexp, UText *text, UErrorCode *status)

Set the subject text string upon which the regular expression is looking for matches without changing...

U_CAPI int32_t uregex_getStackLimit(const URegularExpression *regexp, UErrorCode *status)

Get the size of the heap storage available for use by the back tracking stack.

U_CAPI int32_t uregex_replaceFirst(URegularExpression *regexp, const UChar *replacementText, int32_t replacementLength, UChar *destBuf, int32_t destCapacity, UErrorCode *status)

Replaces the first substring of the input that matches the pattern with the given replacement string.

U_CAPI int32_t uregex_regionStart(const URegularExpression *regexp, UErrorCode *status)

Reports the start index of the matching region.

U_CAPI int32_t uregex_start(URegularExpression *regexp, int32_t groupNum, UErrorCode *status)

Returns the index in the input string of the start of the text matched by the specified capture group...

U_CAPI int64_t uregex_regionEnd64(const URegularExpression *regexp, UErrorCode *status)

64bit version of uregex_regionEnd.

U_CAPI UText * uregex_appendTailUText(URegularExpression *regexp, UText *dest, UErrorCode *status)

As the final step in a find-and-replace operation, append the remainder of the input string,...

U_CAPI URegularExpression * uregex_clone(const URegularExpression *regexp, UErrorCode *status)

Make a copy of a compiled regular expression.

U_CAPI void uregex_setText(URegularExpression *regexp, const UChar *text, int32_t textLength, UErrorCode *status)

Set the subject text string upon which the regular expression will look for matches.

U_CAPI int32_t uregex_replaceAll(URegularExpression *regexp, const UChar *replacementText, int32_t replacementLength, UChar *destBuf, int32_t destCapacity, UErrorCode *status)

Replaces every substring of the input that matches the pattern with the given replacement string.

U_CAPI void uregex_setStackLimit(URegularExpression *regexp, int32_t limit, UErrorCode *status)

Set the amount of heap storage available for use by the match backtracking stack.

U_CAPI void uregex_getMatchCallback(const URegularExpression *regexp, URegexMatchCallback **callback, const void **context, UErrorCode *status)

Get the callback function for this URegularExpression.

U_CAPI void uregex_setRegion(URegularExpression *regexp, int32_t regionStart, int32_t regionLimit, UErrorCode *status)

Sets the limits of the matching region for this URegularExpression.

U_CAPI int32_t uregex_group(URegularExpression *regexp, int32_t groupNum, UChar *dest, int32_t destCapacity, UErrorCode *status)

Extract the string for the specified matching expression or subexpression.

U_CAPI UBool uregex_hasAnchoringBounds(const URegularExpression *regexp, UErrorCode *status)

Return true if this URegularExpression is using anchoring bounds.

U_CAPI void uregex_setTimeLimit(URegularExpression *regexp, int32_t limit, UErrorCode *status)

Set a processing time limit for match operations with this URegularExpression.

U_CAPI UBool uregex_lookingAt64(URegularExpression *regexp, int64_t startIndex, UErrorCode *status)

64bit version of uregex_lookingAt.

U_CAPI void uregex_setFindProgressCallback(URegularExpression *regexp, URegexFindProgressCallback *callback, const void *context, UErrorCode *status)

Set the find progress callback function for this URegularExpression.

U_CAPI void uregex_setMatchCallback(URegularExpression *regexp, URegexMatchCallback *callback, const void *context, UErrorCode *status)

Set a callback function for this URegularExpression.

U_CAPI UText * uregex_replaceFirstUText(URegularExpression *regexp, UText *replacement, UText *dest, UErrorCode *status)

Replaces the first substring of the input that matches the pattern with the given replacement string.

U_CAPI int32_t uregex_end(URegularExpression *regexp, int32_t groupNum, UErrorCode *status)

Returns the index in the input string of the position following the end of the text matched by the sp...

U_CAPI void uregex_getFindProgressCallback(const URegularExpression *regexp, URegexFindProgressCallback **callback, const void **context, UErrorCode *status)

Get the find progress callback function for this URegularExpression.

U_CAPI UBool uregex_hasTransparentBounds(const URegularExpression *regexp, UErrorCode *status)

Queries the transparency of region bounds for this URegularExpression.

U_CAPI UBool uregex_hitEnd(const URegularExpression *regexp, UErrorCode *status)

Return true if the most recent matching operation touched the end of the text being processed.

U_CAPI UBool uregex_matches(URegularExpression *regexp, int32_t startIndex, UErrorCode *status)

Attempts to match the input string against the pattern.

U_CAPI int32_t uregex_groupNumberFromName(URegularExpression *regexp, const UChar *groupName, int32_t nameLength, UErrorCode *status)

Get the group number corresponding to a named capture group.

U_CAPI int32_t uregex_splitUText(URegularExpression *regexp, UText *destFields[], int32_t destFieldsCapacity, UErrorCode *status)

Split a string into fields.

C API: Abstract Unicode Text API.

Basic definitions for ICU, for both C and C++ APIs.

UErrorCode

Standard ICU4C error code type, a substitute for exceptions.