| // |
| // file: repattrn.cpp |
| // |
| /* |
| *************************************************************************** |
| * Copyright (C) 2002-2015 International Business Machines Corporation * |
| * and others. All rights reserved. * |
| *************************************************************************** |
| */ |
| |
| #include "unicode/utypes.h" |
| |
| #if !UCONFIG_NO_REGULAR_EXPRESSIONS |
| |
| #include "unicode/regex.h" |
| #include "unicode/uclean.h" |
| #include "uassert.h" |
| #include "uhash.h" |
| #include "uvector.h" |
| #include "uvectr32.h" |
| #include "uvectr64.h" |
| #include "regexcmp.h" |
| #include "regeximp.h" |
| #include "regexst.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| //-------------------------------------------------------------------------- |
| // |
| // RegexPattern Default Constructor |
| // |
| //-------------------------------------------------------------------------- |
| RegexPattern::RegexPattern() { |
| // Init all of this instances data. |
| init(); |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Copy Constructor Note: This is a rather inefficient implementation, |
| // but it probably doesn't matter. |
| // |
| //-------------------------------------------------------------------------- |
| RegexPattern::RegexPattern(const RegexPattern &other) : UObject(other) { |
| init(); |
| *this = other; |
| } |
| |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Assignment Operator |
| // |
| //-------------------------------------------------------------------------- |
| RegexPattern &RegexPattern::operator = (const RegexPattern &other) { |
| if (this == &other) { |
| // Source and destination are the same. Don't do anything. |
| return *this; |
| } |
| |
| // Clean out any previous contents of object being assigned to. |
| zap(); |
| |
| // Give target object a default initialization |
| init(); |
| |
| // Copy simple fields |
| fDeferredStatus = other.fDeferredStatus; |
| |
| if (U_FAILURE(fDeferredStatus)) { |
| return *this; |
| } |
| |
| if (other.fPatternString == NULL) { |
| fPatternString = NULL; |
| fPattern = utext_clone(fPattern, other.fPattern, FALSE, TRUE, &fDeferredStatus); |
| } else { |
| fPatternString = new UnicodeString(*(other.fPatternString)); |
| if (fPatternString == NULL) { |
| fDeferredStatus = U_MEMORY_ALLOCATION_ERROR; |
| } else { |
| fPattern = utext_openConstUnicodeString(NULL, fPatternString, &fDeferredStatus); |
| } |
| } |
| if (U_FAILURE(fDeferredStatus)) { |
| return *this; |
| } |
| |
| fFlags = other.fFlags; |
| fLiteralText = other.fLiteralText; |
| fMinMatchLen = other.fMinMatchLen; |
| fFrameSize = other.fFrameSize; |
| fDataSize = other.fDataSize; |
| fStaticSets = other.fStaticSets; |
| fStaticSets8 = other.fStaticSets8; |
| |
| fStartType = other.fStartType; |
| fInitialStringIdx = other.fInitialStringIdx; |
| fInitialStringLen = other.fInitialStringLen; |
| *fInitialChars = *other.fInitialChars; |
| fInitialChar = other.fInitialChar; |
| *fInitialChars8 = *other.fInitialChars8; |
| fNeedsAltInput = other.fNeedsAltInput; |
| |
| // Copy the pattern. It's just values, nothing deep to copy. |
| fCompiledPat->assign(*other.fCompiledPat, fDeferredStatus); |
| fGroupMap->assign(*other.fGroupMap, fDeferredStatus); |
| |
| // Copy the Unicode Sets. |
| // Could be made more efficient if the sets were reference counted and shared, |
| // but I doubt that pattern copying will be particularly common. |
| // Note: init() already added an empty element zero to fSets |
| int32_t i; |
| int32_t numSets = other.fSets->size(); |
| fSets8 = new Regex8BitSet[numSets]; |
| if (fSets8 == NULL) { |
| fDeferredStatus = U_MEMORY_ALLOCATION_ERROR; |
| return *this; |
| } |
| for (i=1; i<numSets; i++) { |
| if (U_FAILURE(fDeferredStatus)) { |
| return *this; |
| } |
| UnicodeSet *sourceSet = (UnicodeSet *)other.fSets->elementAt(i); |
| UnicodeSet *newSet = new UnicodeSet(*sourceSet); |
| if (newSet == NULL) { |
| fDeferredStatus = U_MEMORY_ALLOCATION_ERROR; |
| break; |
| } |
| fSets->addElement(newSet, fDeferredStatus); |
| fSets8[i] = other.fSets8[i]; |
| } |
| |
| // Copy the named capture group hash map. |
| int32_t hashPos = UHASH_FIRST; |
| while (const UHashElement *hashEl = uhash_nextElement(other.fNamedCaptureMap, &hashPos)) { |
| if (U_FAILURE(fDeferredStatus)) { |
| break; |
| } |
| const UnicodeString *name = (const UnicodeString *)hashEl->key.pointer; |
| UnicodeString *key = new UnicodeString(*name); |
| int32_t val = hashEl->value.integer; |
| if (key == NULL) { |
| fDeferredStatus = U_MEMORY_ALLOCATION_ERROR; |
| } else { |
| uhash_puti(fNamedCaptureMap, key, val, &fDeferredStatus); |
| } |
| } |
| return *this; |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // init Shared initialization for use by constructors. |
| // Bring an uninitialized RegexPattern up to a default state. |
| // |
| //-------------------------------------------------------------------------- |
| void RegexPattern::init() { |
| fFlags = 0; |
| fCompiledPat = 0; |
| fLiteralText.remove(); |
| fSets = NULL; |
| fSets8 = NULL; |
| fDeferredStatus = U_ZERO_ERROR; |
| fMinMatchLen = 0; |
| fFrameSize = 0; |
| fDataSize = 0; |
| fGroupMap = NULL; |
| fStaticSets = NULL; |
| fStaticSets8 = NULL; |
| fStartType = START_NO_INFO; |
| fInitialStringIdx = 0; |
| fInitialStringLen = 0; |
| fInitialChars = NULL; |
| fInitialChar = 0; |
| fInitialChars8 = NULL; |
| fNeedsAltInput = FALSE; |
| fNamedCaptureMap = NULL; |
| |
| fPattern = NULL; // will be set later |
| fPatternString = NULL; // may be set later |
| fCompiledPat = new UVector64(fDeferredStatus); |
| fGroupMap = new UVector32(fDeferredStatus); |
| fSets = new UVector(fDeferredStatus); |
| fInitialChars = new UnicodeSet; |
| fInitialChars8 = new Regex8BitSet; |
| fNamedCaptureMap = uhash_open(uhash_hashUnicodeString, // Key hash function |
| uhash_compareUnicodeString, // Key comparator function |
| uhash_compareLong, // Value comparator function |
| &fDeferredStatus); |
| if (U_FAILURE(fDeferredStatus)) { |
| return; |
| } |
| if (fCompiledPat == NULL || fGroupMap == NULL || fSets == NULL || |
| fInitialChars == NULL || fInitialChars8 == NULL || fNamedCaptureMap == NULL) { |
| fDeferredStatus = U_MEMORY_ALLOCATION_ERROR; |
| return; |
| } |
| |
| // Slot zero of the vector of sets is reserved. Fill it here. |
| fSets->addElement((int32_t)0, fDeferredStatus); |
| |
| // fNamedCaptureMap owns its key strings, type (UnicodeString *) |
| uhash_setKeyDeleter(fNamedCaptureMap, uprv_deleteUObject); |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // zap Delete everything owned by this RegexPattern. |
| // |
| //-------------------------------------------------------------------------- |
| void RegexPattern::zap() { |
| delete fCompiledPat; |
| fCompiledPat = NULL; |
| int i; |
| for (i=1; i<fSets->size(); i++) { |
| UnicodeSet *s; |
| s = (UnicodeSet *)fSets->elementAt(i); |
| if (s != NULL) { |
| delete s; |
| } |
| } |
| delete fSets; |
| fSets = NULL; |
| delete[] fSets8; |
| fSets8 = NULL; |
| delete fGroupMap; |
| fGroupMap = NULL; |
| delete fInitialChars; |
| fInitialChars = NULL; |
| delete fInitialChars8; |
| fInitialChars8 = NULL; |
| if (fPattern != NULL) { |
| utext_close(fPattern); |
| fPattern = NULL; |
| } |
| if (fPatternString != NULL) { |
| delete fPatternString; |
| fPatternString = NULL; |
| } |
| uhash_close(fNamedCaptureMap); |
| fNamedCaptureMap = NULL; |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Destructor |
| // |
| //-------------------------------------------------------------------------- |
| RegexPattern::~RegexPattern() { |
| zap(); |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // Clone |
| // |
| //-------------------------------------------------------------------------- |
| RegexPattern *RegexPattern::clone() const { |
| RegexPattern *copy = new RegexPattern(*this); |
| return copy; |
| } |
| |
| |
| //-------------------------------------------------------------------------- |
| // |
| // operator == (comparison) Consider to patterns to be == if the |
| // pattern strings and the flags are the same. |
| // Note that pattern strings with the same |
| // characters can still be considered different. |
| // |
| //-------------------------------------------------------------------------- |
| UBool RegexPattern::operator ==(const RegexPattern &other) const { |
| if (this->fFlags == other.fFlags && this->fDeferredStatus == other.fDeferredStatus) { |
| if (this->fPatternString != NULL && other.fPatternString != NULL) { |
| return *(this->fPatternString) == *(other.fPatternString); |
| } else if (this->fPattern == NULL) { |
| if (other.fPattern == NULL) { |
| return TRUE; |
| } |
| } else if (other.fPattern != NULL) { |
| UTEXT_SETNATIVEINDEX(this->fPattern, 0); |
| UTEXT_SETNATIVEINDEX(other.fPattern, 0); |
| return utext_equals(this->fPattern, other.fPattern); |
| } |
| } |
| return FALSE; |
| } |
| |
| //--------------------------------------------------------------------- |
| // |
| // compile |
| // |
| //--------------------------------------------------------------------- |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(const UnicodeString ®ex, |
| uint32_t flags, |
| UParseError &pe, |
| UErrorCode &status) |
| { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| const uint32_t allFlags = UREGEX_CANON_EQ | UREGEX_CASE_INSENSITIVE | UREGEX_COMMENTS | |
| UREGEX_DOTALL | UREGEX_MULTILINE | UREGEX_UWORD | |
| UREGEX_ERROR_ON_UNKNOWN_ESCAPES | UREGEX_UNIX_LINES | UREGEX_LITERAL; |
| |
| if ((flags & ~allFlags) != 0) { |
| status = U_REGEX_INVALID_FLAG; |
| return NULL; |
| } |
| |
| if ((flags & UREGEX_CANON_EQ) != 0) { |
| status = U_REGEX_UNIMPLEMENTED; |
| return NULL; |
| } |
| |
| RegexPattern *This = new RegexPattern; |
| if (This == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| if (U_FAILURE(This->fDeferredStatus)) { |
| status = This->fDeferredStatus; |
| delete This; |
| return NULL; |
| } |
| This->fFlags = flags; |
| |
| RegexCompile compiler(This, status); |
| compiler.compile(regex, pe, status); |
| |
| if (U_FAILURE(status)) { |
| delete This; |
| This = NULL; |
| } |
| |
| return This; |
| } |
| |
| |
| // |
| // compile, UText mode |
| // |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(UText *regex, |
| uint32_t flags, |
| UParseError &pe, |
| UErrorCode &status) |
| { |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| |
| const uint32_t allFlags = UREGEX_CANON_EQ | UREGEX_CASE_INSENSITIVE | UREGEX_COMMENTS | |
| UREGEX_DOTALL | UREGEX_MULTILINE | UREGEX_UWORD | |
| UREGEX_ERROR_ON_UNKNOWN_ESCAPES | UREGEX_UNIX_LINES | UREGEX_LITERAL; |
| |
| if ((flags & ~allFlags) != 0) { |
| status = U_REGEX_INVALID_FLAG; |
| return NULL; |
| } |
| |
| if ((flags & UREGEX_CANON_EQ) != 0) { |
| status = U_REGEX_UNIMPLEMENTED; |
| return NULL; |
| } |
| |
| RegexPattern *This = new RegexPattern; |
| if (This == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| if (U_FAILURE(This->fDeferredStatus)) { |
| status = This->fDeferredStatus; |
| delete This; |
| return NULL; |
| } |
| This->fFlags = flags; |
| |
| RegexCompile compiler(This, status); |
| compiler.compile(regex, pe, status); |
| |
| if (U_FAILURE(status)) { |
| delete This; |
| This = NULL; |
| } |
| |
| return This; |
| } |
| |
| // |
| // compile with default flags. |
| // |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(const UnicodeString ®ex, |
| UParseError &pe, |
| UErrorCode &err) |
| { |
| return compile(regex, 0, pe, err); |
| } |
| |
| |
| // |
| // compile with default flags, UText mode |
| // |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(UText *regex, |
| UParseError &pe, |
| UErrorCode &err) |
| { |
| return compile(regex, 0, pe, err); |
| } |
| |
| |
| // |
| // compile with no UParseErr parameter. |
| // |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(const UnicodeString ®ex, |
| uint32_t flags, |
| UErrorCode &err) |
| { |
| UParseError pe; |
| return compile(regex, flags, pe, err); |
| } |
| |
| |
| // |
| // compile with no UParseErr parameter, UText mode |
| // |
| RegexPattern * U_EXPORT2 |
| RegexPattern::compile(UText *regex, |
| uint32_t flags, |
| UErrorCode &err) |
| { |
| UParseError pe; |
| return compile(regex, flags, pe, err); |
| } |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // flags |
| // |
| //--------------------------------------------------------------------- |
| uint32_t RegexPattern::flags() const { |
| return fFlags; |
| } |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // matcher(UnicodeString, err) |
| // |
| //--------------------------------------------------------------------- |
| RegexMatcher *RegexPattern::matcher(const UnicodeString &input, |
| UErrorCode &status) const { |
| RegexMatcher *retMatcher = matcher(status); |
| if (retMatcher != NULL) { |
| retMatcher->fDeferredStatus = status; |
| retMatcher->reset(input); |
| } |
| return retMatcher; |
| } |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // matcher(status) |
| // |
| //--------------------------------------------------------------------- |
| RegexMatcher *RegexPattern::matcher(UErrorCode &status) const { |
| RegexMatcher *retMatcher = NULL; |
| |
| if (U_FAILURE(status)) { |
| return NULL; |
| } |
| if (U_FAILURE(fDeferredStatus)) { |
| status = fDeferredStatus; |
| return NULL; |
| } |
| |
| retMatcher = new RegexMatcher(this); |
| if (retMatcher == NULL) { |
| status = U_MEMORY_ALLOCATION_ERROR; |
| return NULL; |
| } |
| return retMatcher; |
| } |
| |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // matches Convenience function to test for a match, starting |
| // with a pattern string and a data string. |
| // |
| //--------------------------------------------------------------------- |
| UBool U_EXPORT2 RegexPattern::matches(const UnicodeString ®ex, |
| const UnicodeString &input, |
| UParseError &pe, |
| UErrorCode &status) { |
| |
| if (U_FAILURE(status)) {return FALSE;} |
| |
| UBool retVal; |
| RegexPattern *pat = NULL; |
| RegexMatcher *matcher = NULL; |
| |
| pat = RegexPattern::compile(regex, 0, pe, status); |
| matcher = pat->matcher(input, status); |
| retVal = matcher->matches(status); |
| |
| delete matcher; |
| delete pat; |
| return retVal; |
| } |
| |
| |
| // |
| // matches, UText mode |
| // |
| UBool U_EXPORT2 RegexPattern::matches(UText *regex, |
| UText *input, |
| UParseError &pe, |
| UErrorCode &status) { |
| |
| if (U_FAILURE(status)) {return FALSE;} |
| |
| UBool retVal = FALSE; |
| RegexPattern *pat = NULL; |
| RegexMatcher *matcher = NULL; |
| |
| pat = RegexPattern::compile(regex, 0, pe, status); |
| matcher = pat->matcher(status); |
| if (U_SUCCESS(status)) { |
| matcher->reset(input); |
| retVal = matcher->matches(status); |
| } |
| |
| delete matcher; |
| delete pat; |
| return retVal; |
| } |
| |
| |
| |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // pattern |
| // |
| //--------------------------------------------------------------------- |
| UnicodeString RegexPattern::pattern() const { |
| if (fPatternString != NULL) { |
| return *fPatternString; |
| } else if (fPattern == NULL) { |
| return UnicodeString(); |
| } else { |
| UErrorCode status = U_ZERO_ERROR; |
| int64_t nativeLen = utext_nativeLength(fPattern); |
| int32_t len16 = utext_extract(fPattern, 0, nativeLen, NULL, 0, &status); // buffer overflow error |
| UnicodeString result; |
| |
| status = U_ZERO_ERROR; |
| UChar *resultChars = result.getBuffer(len16); |
| utext_extract(fPattern, 0, nativeLen, resultChars, len16, &status); // unterminated warning |
| result.releaseBuffer(len16); |
| |
| return result; |
| } |
| } |
| |
| |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // patternText |
| // |
| //--------------------------------------------------------------------- |
| UText *RegexPattern::patternText(UErrorCode &status) const { |
| if (U_FAILURE(status)) {return NULL;} |
| status = U_ZERO_ERROR; |
| |
| if (fPattern != NULL) { |
| return fPattern; |
| } else { |
| RegexStaticSets::initGlobals(&status); |
| return RegexStaticSets::gStaticSets->fEmptyText; |
| } |
| } |
| |
| |
| //-------------------------------------------------------------------------------- |
| // |
| // groupNumberFromName() |
| // |
| //-------------------------------------------------------------------------------- |
| int32_t RegexPattern::groupNumberFromName(const UnicodeString &groupName, UErrorCode &status) const { |
| if (U_FAILURE(status)) { |
| return 0; |
| } |
| |
| // No need to explicitly check for syntactically valid names. |
| // Invalid ones will never be in the map, and the lookup will fail. |
| |
| int32_t number = uhash_geti(fNamedCaptureMap, &groupName); |
| if (number == 0) { |
| status = U_REGEX_INVALID_CAPTURE_GROUP_NAME; |
| } |
| return number; |
| } |
| |
| int32_t RegexPattern::groupNumberFromName(const char *groupName, int32_t nameLength, UErrorCode &status) const { |
| if (U_FAILURE(status)) { |
| return 0; |
| } |
| UnicodeString name(groupName, nameLength, US_INV); |
| return groupNumberFromName(name, status); |
| } |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // split |
| // |
| //--------------------------------------------------------------------- |
| int32_t RegexPattern::split(const UnicodeString &input, |
| UnicodeString dest[], |
| int32_t destCapacity, |
| UErrorCode &status) const |
| { |
| if (U_FAILURE(status)) { |
| return 0; |
| }; |
| |
| RegexMatcher m(this); |
| int32_t r = 0; |
| // Check m's status to make sure all is ok. |
| if (U_SUCCESS(m.fDeferredStatus)) { |
| r = m.split(input, dest, destCapacity, status); |
| } |
| return r; |
| } |
| |
| // |
| // split, UText mode |
| // |
| int32_t RegexPattern::split(UText *input, |
| UText *dest[], |
| int32_t destCapacity, |
| UErrorCode &status) const |
| { |
| if (U_FAILURE(status)) { |
| return 0; |
| }; |
| |
| RegexMatcher m(this); |
| int32_t r = 0; |
| // Check m's status to make sure all is ok. |
| if (U_SUCCESS(m.fDeferredStatus)) { |
| r = m.split(input, dest, destCapacity, status); |
| } |
| return r; |
| } |
| |
| |
| |
| //--------------------------------------------------------------------- |
| // |
| // dump Output the compiled form of the pattern. |
| // Debugging function only. |
| // |
| //--------------------------------------------------------------------- |
| void RegexPattern::dumpOp(int32_t index) const { |
| (void)index; // Suppress warnings in non-debug build. |
| #if defined(REGEX_DEBUG) |
| static const char * const opNames[] = {URX_OPCODE_NAMES}; |
| int32_t op = fCompiledPat->elementAti(index); |
| int32_t val = URX_VAL(op); |
| int32_t type = URX_TYPE(op); |
| int32_t pinnedType = type; |
| if ((uint32_t)pinnedType >= sizeof(opNames)/sizeof(char *)) { |
| pinnedType = 0; |
| } |
| |
| printf("%4d %08x %-15s ", index, op, opNames[pinnedType]); |
| switch (type) { |
| case URX_NOP: |
| case URX_DOTANY: |
| case URX_DOTANY_ALL: |
| case URX_FAIL: |
| case URX_CARET: |
| case URX_DOLLAR: |
| case URX_BACKSLASH_G: |
| case URX_BACKSLASH_X: |
| case URX_END: |
| case URX_DOLLAR_M: |
| case URX_CARET_M: |
| // Types with no operand field of interest. |
| break; |
| |
| case URX_RESERVED_OP: |
| case URX_START_CAPTURE: |
| case URX_END_CAPTURE: |
| case URX_STATE_SAVE: |
| case URX_JMP: |
| case URX_JMP_SAV: |
| case URX_JMP_SAV_X: |
| case URX_BACKSLASH_B: |
| case URX_BACKSLASH_BU: |
| case URX_BACKSLASH_D: |
| case URX_BACKSLASH_Z: |
| case URX_STRING_LEN: |
| case URX_CTR_INIT: |
| case URX_CTR_INIT_NG: |
| case URX_CTR_LOOP: |
| case URX_CTR_LOOP_NG: |
| case URX_RELOC_OPRND: |
| case URX_STO_SP: |
| case URX_LD_SP: |
| case URX_BACKREF: |
| case URX_STO_INP_LOC: |
| case URX_JMPX: |
| case URX_LA_START: |
| case URX_LA_END: |
| case URX_BACKREF_I: |
| case URX_LB_START: |
| case URX_LB_CONT: |
| case URX_LB_END: |
| case URX_LBN_CONT: |
| case URX_LBN_END: |
| case URX_LOOP_C: |
| case URX_LOOP_DOT_I: |
| case URX_BACKSLASH_H: |
| case URX_BACKSLASH_R: |
| case URX_BACKSLASH_V: |
| // types with an integer operand field. |
| printf("%d", val); |
| break; |
| |
| case URX_ONECHAR: |
| case URX_ONECHAR_I: |
| printf("%c", val<256?val:'?'); |
| break; |
| |
| case URX_STRING: |
| case URX_STRING_I: |
| { |
| int32_t lengthOp = fCompiledPat->elementAti(index+1); |
| U_ASSERT(URX_TYPE(lengthOp) == URX_STRING_LEN); |
| int32_t length = URX_VAL(lengthOp); |
| int32_t i; |
| for (i=val; i<val+length; i++) { |
| UChar c = fLiteralText[i]; |
| if (c < 32 || c >= 256) {c = '.';} |
| printf("%c", c); |
| } |
| } |
| break; |
| |
| case URX_SETREF: |
| case URX_LOOP_SR_I: |
| { |
| UnicodeString s; |
| UnicodeSet *set = (UnicodeSet *)fSets->elementAt(val); |
| set->toPattern(s, TRUE); |
| for (int32_t i=0; i<s.length(); i++) { |
| printf("%c", s.charAt(i)); |
| } |
| } |
| break; |
| |
| case URX_STATIC_SETREF: |
| case URX_STAT_SETREF_N: |
| { |
| UnicodeString s; |
| if (val & URX_NEG_SET) { |
| printf("NOT "); |
| val &= ~URX_NEG_SET; |
| } |
| UnicodeSet *set = fStaticSets[val]; |
| set->toPattern(s, TRUE); |
| for (int32_t i=0; i<s.length(); i++) { |
| printf("%c", s.charAt(i)); |
| } |
| } |
| break; |
| |
| |
| default: |
| printf("??????"); |
| break; |
| } |
| printf("\n"); |
| #endif |
| } |
| |
| |
| void RegexPattern::dumpPattern() const { |
| #if defined(REGEX_DEBUG) |
| // TODO: This function assumes an ASCII based charset. |
| int index; |
| int i; |
| |
| printf("Original Pattern: "); |
| UChar32 c = utext_next32From(fPattern, 0); |
| while (c != U_SENTINEL) { |
| if (c<32 || c>256) { |
| c = '.'; |
| } |
| printf("%c", c); |
| |
| c = UTEXT_NEXT32(fPattern); |
| } |
| printf("\n"); |
| printf(" Min Match Length: %d\n", fMinMatchLen); |
| printf(" Match Start Type: %s\n", START_OF_MATCH_STR(fStartType)); |
| if (fStartType == START_STRING) { |
| printf(" Initial match string: \""); |
| for (i=fInitialStringIdx; i<fInitialStringIdx+fInitialStringLen; i++) { |
| printf("%c", fLiteralText[i]); // TODO: non-printables, surrogates. |
| } |
| printf("\"\n"); |
| |
| } else if (fStartType == START_SET) { |
| int32_t numSetChars = fInitialChars->size(); |
| if (numSetChars > 20) { |
| numSetChars = 20; |
| } |
| printf(" Match First Chars : "); |
| for (i=0; i<numSetChars; i++) { |
| UChar32 c = fInitialChars->charAt(i); |
| if (0x20<c && c <0x7e) { |
| printf("%c ", c); |
| } else { |
| printf("%#x ", c); |
| } |
| } |
| if (numSetChars < fInitialChars->size()) { |
| printf(" ..."); |
| } |
| printf("\n"); |
| |
| } else if (fStartType == START_CHAR) { |
| printf(" First char of Match : "); |
| if (0x20 < fInitialChar && fInitialChar<0x7e) { |
| printf("%c\n", fInitialChar); |
| } else { |
| printf("%#x\n", fInitialChar); |
| } |
| } |
| |
| printf("Named Capture Groups:\n"); |
| if (uhash_count(fNamedCaptureMap) == 0) { |
| printf(" None\n"); |
| } else { |
| int32_t pos = UHASH_FIRST; |
| const UHashElement *el = NULL; |
| while ((el = uhash_nextElement(fNamedCaptureMap, &pos))) { |
| const UnicodeString *name = (const UnicodeString *)el->key.pointer; |
| char s[100]; |
| name->extract(0, 99, s, sizeof(s), US_INV); // capture group names are invariant. |
| int32_t number = el->value.integer; |
| printf(" %d\t%s\n", number, s); |
| } |
| } |
| |
| printf("\nIndex Binary Type Operand\n" \ |
| "-------------------------------------------\n"); |
| for (index = 0; index<fCompiledPat->size(); index++) { |
| dumpOp(index); |
| } |
| printf("\n\n"); |
| #endif |
| } |
| |
| |
| |
| UOBJECT_DEFINE_RTTI_IMPLEMENTATION(RegexPattern) |
| |
| U_NAMESPACE_END |
| #endif // !UCONFIG_NO_REGULAR_EXPRESSIONS |
