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openSUSE:Leap:42.3
icu
icu-CVE-2014-9654.patch
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File icu-CVE-2014-9654.patch of Package icu
Index: icu/source/common/unicode/utypes.h =================================================================== --- icu.orig/icu/source/common/unicode/utypes.h +++ icu/source/common/unicode/utypes.h @@ -647,6 +647,7 @@ typedef enum UErrorCode { U_REGEX_STACK_OVERFLOW, /**< Regular expression backtrack stack overflow. */ U_REGEX_TIME_OUT, /**< Maximum allowed match time exceeded */ U_REGEX_STOPPED_BY_CALLER, /**< Matching operation aborted by user callback fn. */ + U_REGEX_PATTERN_TOO_BIG, /**< Pattern exceeds limits on size or complexity. @draft ICU 55 */ U_REGEX_ERROR_LIMIT, /**< This must always be the last value to indicate the limit for regexp errors */ /* Index: icu/source/common/utypes.c =================================================================== --- icu.orig/icu/source/common/utypes.c +++ icu/source/common/utypes.c @@ -1,7 +1,7 @@ /* ****************************************************************************** * -* Copyright (C) 1997-2011, International Business Machines +* Copyright (C) 1997-2014, International Business Machines * Corporation and others. All Rights Reserved. * ****************************************************************************** @@ -165,7 +165,8 @@ _uRegexErrorName[U_REGEX_ERROR_LIMIT - U "U_REGEX_INVALID_RANGE", "U_REGEX_STACK_OVERFLOW", "U_REGEX_TIME_OUT", - "U_REGEX_STOPPED_BY_CALLER" + "U_REGEX_STOPPED_BY_CALLER", + "U_REGEX_PATTERN_TOO_BIG" }; static const char * const Index: icu/source/i18n/regexcmp.cpp =================================================================== --- icu.orig/icu/source/i18n/regexcmp.cpp +++ icu/source/i18n/regexcmp.cpp @@ -302,7 +302,7 @@ void RegexCompile::compile( // present in the saved state: the input string position (int64_t) and // the position in the compiled pattern. // - fRXPat->fFrameSize+=RESTACKFRAME_HDRCOUNT; + allocateStackData(RESTACKFRAME_HDRCOUNT); // // Optimization pass 1: NOPs, back-references, and case-folding @@ -368,9 +368,9 @@ UBool RegexCompile::doParseActions(int32 // the start of an ( grouping. //4 NOP Resreved, will be replaced by a save if there are // OR | operators at the top level - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_STATE_SAVE, 2), *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_JMP, 3), *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_FAIL, 0), *fStatus); + appendOp(URX_STATE_SAVE, 2); + appendOp(URX_JMP, 3); + appendOp(URX_FAIL, 0); // Standard open nonCapture paren action emits the two NOPs and // sets up the paren stack frame. @@ -393,7 +393,7 @@ UBool RegexCompile::doParseActions(int32 } // add the END operation to the compiled pattern. - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_END, 0), *fStatus); + appendOp(URX_END, 0); // Terminate the pattern compilation state machine. returnVal = FALSE; @@ -415,14 +415,13 @@ UBool RegexCompile::doParseActions(int32 int32_t savePosition = fParenStack.popi(); int32_t op = (int32_t)fRXPat->fCompiledPat->elementAti(savePosition); U_ASSERT(URX_TYPE(op) == URX_NOP); // original contents of reserved location - op = URX_BUILD(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+1); + op = buildOp(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+1); fRXPat->fCompiledPat->setElementAt(op, savePosition); // Append an JMP operation into the compiled pattern. The operand for // the JMP will eventually be the location following the ')' for the // group. This will be patched in later, when the ')' is encountered. - op = URX_BUILD(URX_JMP, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_JMP, 0); // Push the position of the newly added JMP op onto the parentheses stack. // This registers if for fixup when this block's close paren is encountered. @@ -431,7 +430,7 @@ UBool RegexCompile::doParseActions(int32 // Append a NOP to the compiled pattern. This is the slot reserved // for a SAVE in the event that there is yet another '|' following // this one. - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); + appendOp(URX_NOP, 0); fParenStack.push(fRXPat->fCompiledPat->size()-1, *fStatus); } break; @@ -457,12 +456,10 @@ UBool RegexCompile::doParseActions(int32 // END_CAPTURE is encountered. { fixLiterals(); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); - int32_t varsLoc = fRXPat->fFrameSize; // Reserve three slots in match stack frame. - fRXPat->fFrameSize += 3; - int32_t cop = URX_BUILD(URX_START_CAPTURE, varsLoc); - fRXPat->fCompiledPat->addElement(cop, *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); + appendOp(URX_NOP, 0); + int32_t varsLoc = allocateStackData(3); // Reserve three slots in match stack frame. + appendOp(URX_START_CAPTURE, varsLoc); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the two NOPs. Depending on what follows in the pattern, the @@ -487,8 +484,8 @@ UBool RegexCompile::doParseActions(int32 // is an '|' alternation within the parens. { fixLiterals(); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); + appendOp(URX_NOP, 0); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the two NOPs. @@ -510,12 +507,10 @@ UBool RegexCompile::doParseActions(int32 // is an '|' alternation within the parens. { fixLiterals(); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); - int32_t varLoc = fRXPat->fDataSize; // Reserve a data location for saving the - fRXPat->fDataSize += 1; // state stack ptr. - int32_t stoOp = URX_BUILD(URX_STO_SP, varLoc); - fRXPat->fCompiledPat->addElement(stoOp, *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); + appendOp(URX_NOP, 0); + int32_t varLoc = allocateData(1); // Reserve a data location for saving the state stack ptr. + appendOp(URX_STO_SP, varLoc); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the two NOPs. Depending on what follows in the pattern, the @@ -558,26 +553,14 @@ UBool RegexCompile::doParseActions(int32 // Two data slots are reserved, for saving the stack ptr and the input position. { fixLiterals(); - int32_t dataLoc = fRXPat->fDataSize; - fRXPat->fDataSize += 2; - int32_t op = URX_BUILD(URX_LA_START, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+ 2); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_JMP, fRXPat->fCompiledPat->size()+ 3); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_LA_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_BACKTRACK, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_NOP, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); - fRXPat->fCompiledPat->addElement(op, *fStatus); + int32_t dataLoc = allocateData(2); + appendOp(URX_LA_START, dataLoc); + appendOp(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+ 2); + appendOp(URX_JMP, fRXPat->fCompiledPat->size()+ 3); + appendOp(URX_LA_END, dataLoc); + appendOp(URX_BACKTRACK, 0); + appendOp(URX_NOP, 0); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the NOPs. @@ -602,16 +585,10 @@ UBool RegexCompile::doParseActions(int32 // an alternate (transparent) region. { fixLiterals(); - int32_t dataLoc = fRXPat->fDataSize; - fRXPat->fDataSize += 2; - int32_t op = URX_BUILD(URX_LA_START, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_STATE_SAVE, 0); // dest address will be patched later. - fRXPat->fCompiledPat->addElement(op, *fStatus); - - op = URX_BUILD(URX_NOP, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); + int32_t dataLoc = allocateData(2); + appendOp(URX_LA_START, dataLoc); + appendOp(URX_STATE_SAVE, 0); // dest address will be patched later. + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the StateSave and NOP. @@ -649,23 +626,19 @@ UBool RegexCompile::doParseActions(int32 fixLiterals(); // Allocate data space - int32_t dataLoc = fRXPat->fDataSize; - fRXPat->fDataSize += 4; + int32_t dataLoc = allocateData(4); // Emit URX_LB_START - int32_t op = URX_BUILD(URX_LB_START, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LB_START, dataLoc); // Emit URX_LB_CONT - op = URX_BUILD(URX_LB_CONT, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - fRXPat->fCompiledPat->addElement(0, *fStatus); // MinMatchLength. To be filled later. - fRXPat->fCompiledPat->addElement(0, *fStatus); // MaxMatchLength. To be filled later. - - // Emit the NOP - op = URX_BUILD(URX_NOP, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LB_CONT, dataLoc); + appendOp(URX_RESERVED_OP, 0); // MinMatchLength. To be filled later. + appendOp(URX_RESERVED_OP, 0); // MaxMatchLength. To be filled later. + + // Emit the NOPs + appendOp(URX_NOP, 0); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the URX_LB_CONT and the NOP. @@ -705,24 +678,20 @@ UBool RegexCompile::doParseActions(int32 fixLiterals(); // Allocate data space - int32_t dataLoc = fRXPat->fDataSize; - fRXPat->fDataSize += 4; + int32_t dataLoc = allocateData(4); // Emit URX_LB_START - int32_t op = URX_BUILD(URX_LB_START, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LB_START, dataLoc); // Emit URX_LBN_CONT - op = URX_BUILD(URX_LBN_CONT, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - fRXPat->fCompiledPat->addElement(0, *fStatus); // MinMatchLength. To be filled later. - fRXPat->fCompiledPat->addElement(0, *fStatus); // MaxMatchLength. To be filled later. - fRXPat->fCompiledPat->addElement(0, *fStatus); // Continue Loc. To be filled later. - - // Emit the NOP - op = URX_BUILD(URX_NOP, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LBN_CONT, dataLoc); + appendOp(URX_RESERVED_OP, 0); // MinMatchLength. To be filled later. + appendOp(URX_RESERVED_OP, 0); // MaxMatchLength. To be filled later. + appendOp(URX_RESERVED_OP, 0); // Continue Loc. To be filled later. + + // Emit the NOPs + appendOp(URX_NOP, 0); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the URX_LB_CONT and the NOP. @@ -792,12 +761,9 @@ UBool RegexCompile::doParseActions(int32 if (URX_TYPE(repeatedOp) == URX_SETREF) { // Emit optimized code for [char set]+ - int32_t loopOpI = URX_BUILD(URX_LOOP_SR_I, URX_VAL(repeatedOp)); - fRXPat->fCompiledPat->addElement(loopOpI, *fStatus); - frameLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; - int32_t loopOpC = URX_BUILD(URX_LOOP_C, frameLoc); - fRXPat->fCompiledPat->addElement(loopOpC, *fStatus); + appendOp(URX_LOOP_SR_I, URX_VAL(repeatedOp)); + frameLoc = allocateStackData(1); + appendOp(URX_LOOP_C, frameLoc); break; } @@ -805,7 +771,7 @@ UBool RegexCompile::doParseActions(int32 URX_TYPE(repeatedOp) == URX_DOTANY_ALL || URX_TYPE(repeatedOp) == URX_DOTANY_UNIX) { // Emit Optimized code for .+ operations. - int32_t loopOpI = URX_BUILD(URX_LOOP_DOT_I, 0); + int32_t loopOpI = buildOp(URX_LOOP_DOT_I, 0); if (URX_TYPE(repeatedOp) == URX_DOTANY_ALL) { // URX_LOOP_DOT_I operand is a flag indicating ". matches any" mode. loopOpI |= 1; @@ -813,11 +779,9 @@ UBool RegexCompile::doParseActions(int32 if (fModeFlags & UREGEX_UNIX_LINES) { loopOpI |= 2; } - fRXPat->fCompiledPat->addElement(loopOpI, *fStatus); - frameLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; - int32_t loopOpC = URX_BUILD(URX_LOOP_C, frameLoc); - fRXPat->fCompiledPat->addElement(loopOpC, *fStatus); + appendOp(loopOpI); + frameLoc = allocateStackData(1); + appendOp(URX_LOOP_C, frameLoc); break; } @@ -831,18 +795,15 @@ UBool RegexCompile::doParseActions(int32 // Zero length match is possible. // Emit the code sequence that can handle it. insertOp(topLoc); - frameLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; + frameLoc = allocateStackData(1); - int32_t op = URX_BUILD(URX_STO_INP_LOC, frameLoc); + int32_t op = buildOp(URX_STO_INP_LOC, frameLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc); - op = URX_BUILD(URX_JMP_SAV_X, topLoc+1); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_JMP_SAV_X, topLoc+1); } else { // Simpler code when the repeated body must match something non-empty - int32_t jmpOp = URX_BUILD(URX_JMP_SAV, topLoc); - fRXPat->fCompiledPat->addElement(jmpOp, *fStatus); + appendOp(URX_JMP_SAV, topLoc); } } break; @@ -854,8 +815,7 @@ UBool RegexCompile::doParseActions(int32 // 3. ... { int32_t topLoc = blockTopLoc(FALSE); - int32_t saveStateOp = URX_BUILD(URX_STATE_SAVE, topLoc); - fRXPat->fCompiledPat->addElement(saveStateOp, *fStatus); + appendOp(URX_STATE_SAVE, topLoc); } break; @@ -869,7 +829,7 @@ UBool RegexCompile::doParseActions(int32 // Insert the state save into the compiled pattern, and we're done. { int32_t saveStateLoc = blockTopLoc(TRUE); - int32_t saveStateOp = URX_BUILD(URX_STATE_SAVE, fRXPat->fCompiledPat->size()); + int32_t saveStateOp = buildOp(URX_STATE_SAVE, fRXPat->fCompiledPat->size()); fRXPat->fCompiledPat->setElementAt(saveStateOp, saveStateLoc); } break; @@ -888,14 +848,12 @@ UBool RegexCompile::doParseActions(int32 int32_t jmp1_loc = blockTopLoc(TRUE); int32_t jmp2_loc = fRXPat->fCompiledPat->size(); - int32_t jmp1_op = URX_BUILD(URX_JMP, jmp2_loc+1); + int32_t jmp1_op = buildOp(URX_JMP, jmp2_loc+1); fRXPat->fCompiledPat->setElementAt(jmp1_op, jmp1_loc); - int32_t jmp2_op = URX_BUILD(URX_JMP, jmp2_loc+2); - fRXPat->fCompiledPat->addElement(jmp2_op, *fStatus); + appendOp(URX_JMP, jmp2_loc+2); - int32_t save_op = URX_BUILD(URX_STATE_SAVE, jmp1_loc+1); - fRXPat->fCompiledPat->addElement(save_op, *fStatus); + appendOp(URX_STATE_SAVE, jmp1_loc+1); } break; @@ -935,12 +893,10 @@ UBool RegexCompile::doParseActions(int32 if (URX_TYPE(repeatedOp) == URX_SETREF) { // Emit optimized code for a [char set]* - int32_t loopOpI = URX_BUILD(URX_LOOP_SR_I, URX_VAL(repeatedOp)); + int32_t loopOpI = buildOp(URX_LOOP_SR_I, URX_VAL(repeatedOp)); fRXPat->fCompiledPat->setElementAt(loopOpI, topLoc); - dataLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; - int32_t loopOpC = URX_BUILD(URX_LOOP_C, dataLoc); - fRXPat->fCompiledPat->addElement(loopOpC, *fStatus); + dataLoc = allocateStackData(1); + appendOp(URX_LOOP_C, dataLoc); break; } @@ -948,7 +904,7 @@ UBool RegexCompile::doParseActions(int32 URX_TYPE(repeatedOp) == URX_DOTANY_ALL || URX_TYPE(repeatedOp) == URX_DOTANY_UNIX) { // Emit Optimized code for .* operations. - int32_t loopOpI = URX_BUILD(URX_LOOP_DOT_I, 0); + int32_t loopOpI = buildOp(URX_LOOP_DOT_I, 0); if (URX_TYPE(repeatedOp) == URX_DOTANY_ALL) { // URX_LOOP_DOT_I operand is a flag indicating . matches any mode. loopOpI |= 1; @@ -957,10 +913,8 @@ UBool RegexCompile::doParseActions(int32 loopOpI |= 2; } fRXPat->fCompiledPat->setElementAt(loopOpI, topLoc); - dataLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; - int32_t loopOpC = URX_BUILD(URX_LOOP_C, dataLoc); - fRXPat->fCompiledPat->addElement(loopOpC, *fStatus); + dataLoc = allocateStackData(1); + appendOp(URX_LOOP_C, dataLoc); break; } } @@ -969,30 +923,29 @@ UBool RegexCompile::doParseActions(int32 // The optimizations did not apply. int32_t saveStateLoc = blockTopLoc(TRUE); - int32_t jmpOp = URX_BUILD(URX_JMP_SAV, saveStateLoc+1); + int32_t jmpOp = buildOp(URX_JMP_SAV, saveStateLoc+1); // Check for minimum match length of zero, which requires // extra loop-breaking code. if (minMatchLength(saveStateLoc, fRXPat->fCompiledPat->size()-1) == 0) { insertOp(saveStateLoc); - dataLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; + dataLoc = allocateStackData(1); - int32_t op = URX_BUILD(URX_STO_INP_LOC, dataLoc); + int32_t op = buildOp(URX_STO_INP_LOC, dataLoc); fRXPat->fCompiledPat->setElementAt(op, saveStateLoc+1); - jmpOp = URX_BUILD(URX_JMP_SAV_X, saveStateLoc+2); + jmpOp = buildOp(URX_JMP_SAV_X, saveStateLoc+2); } // Locate the position in the compiled pattern where the match will continue // after completing the *. (4 or 5 in the comment above) int32_t continueLoc = fRXPat->fCompiledPat->size()+1; - // Put together the save state op store it into the compiled code. - int32_t saveStateOp = URX_BUILD(URX_STATE_SAVE, continueLoc); + // Put together the save state op and store it into the compiled code. + int32_t saveStateOp = buildOp(URX_STATE_SAVE, continueLoc); fRXPat->fCompiledPat->setElementAt(saveStateOp, saveStateLoc); // Append the URX_JMP_SAV or URX_JMPX operation to the compiled pattern. - fRXPat->fCompiledPat->addElement(jmpOp, *fStatus); + appendOp(jmpOp); } break; @@ -1006,10 +959,9 @@ UBool RegexCompile::doParseActions(int32 { int32_t jmpLoc = blockTopLoc(TRUE); // loc 1. int32_t saveLoc = fRXPat->fCompiledPat->size(); // loc 3. - int32_t jmpOp = URX_BUILD(URX_JMP, saveLoc); - int32_t stateSaveOp = URX_BUILD(URX_STATE_SAVE, jmpLoc+1); + int32_t jmpOp = buildOp(URX_JMP, saveLoc); fRXPat->fCompiledPat->setElementAt(jmpOp, jmpLoc); - fRXPat->fCompiledPat->addElement(stateSaveOp, *fStatus); + appendOp(URX_STATE_SAVE, jmpLoc+1); } break; @@ -1078,9 +1030,9 @@ UBool RegexCompile::doParseActions(int32 // First the STO_SP before the start of the loop insertOp(topLoc); - int32_t varLoc = fRXPat->fDataSize; // Reserve a data location for saving the - fRXPat->fDataSize += 1; // state stack ptr. - int32_t op = URX_BUILD(URX_STO_SP, varLoc); + + int32_t varLoc = allocateData(1); // Reserve a data location for saving the + int32_t op = buildOp(URX_STO_SP, varLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc); int32_t loopOp = (int32_t)fRXPat->fCompiledPat->popi(); @@ -1089,8 +1041,7 @@ UBool RegexCompile::doParseActions(int32 fRXPat->fCompiledPat->push(loopOp, *fStatus); // Then the LD_SP after the end of the loop - op = URX_BUILD(URX_LD_SP, varLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LD_SP, varLoc); } break; @@ -1126,55 +1077,49 @@ UBool RegexCompile::doParseActions(int32 // scanned a ".", match any single character. { fixLiterals(FALSE); - int32_t op; if (fModeFlags & UREGEX_DOTALL) { - op = URX_BUILD(URX_DOTANY_ALL, 0); + appendOp(URX_DOTANY_ALL, 0); } else if (fModeFlags & UREGEX_UNIX_LINES) { - op = URX_BUILD(URX_DOTANY_UNIX, 0); + appendOp(URX_DOTANY_UNIX, 0); } else { - op = URX_BUILD(URX_DOTANY, 0); + appendOp(URX_DOTANY, 0); } - fRXPat->fCompiledPat->addElement(op, *fStatus); } break; case doCaret: { fixLiterals(FALSE); - int32_t op = 0; if ( (fModeFlags & UREGEX_MULTILINE) == 0 && (fModeFlags & UREGEX_UNIX_LINES) == 0) { - op = URX_CARET; + appendOp(URX_CARET, 0); } else if ((fModeFlags & UREGEX_MULTILINE) != 0 && (fModeFlags & UREGEX_UNIX_LINES) == 0) { - op = URX_CARET_M; + appendOp(URX_CARET_M, 0); } else if ((fModeFlags & UREGEX_MULTILINE) == 0 && (fModeFlags & UREGEX_UNIX_LINES) != 0) { - op = URX_CARET; // Only testing true start of input. + appendOp(URX_CARET, 0); // Only testing true start of input. } else if ((fModeFlags & UREGEX_MULTILINE) != 0 && (fModeFlags & UREGEX_UNIX_LINES) != 0) { - op = URX_CARET_M_UNIX; + appendOp(URX_CARET_M_UNIX, 0); } - fRXPat->fCompiledPat->addElement(URX_BUILD(op, 0), *fStatus); } break; case doDollar: { fixLiterals(FALSE); - int32_t op = 0; if ( (fModeFlags & UREGEX_MULTILINE) == 0 && (fModeFlags & UREGEX_UNIX_LINES) == 0) { - op = URX_DOLLAR; + appendOp(URX_DOLLAR, 0); } else if ((fModeFlags & UREGEX_MULTILINE) != 0 && (fModeFlags & UREGEX_UNIX_LINES) == 0) { - op = URX_DOLLAR_M; + appendOp(URX_DOLLAR_M, 0); } else if ((fModeFlags & UREGEX_MULTILINE) == 0 && (fModeFlags & UREGEX_UNIX_LINES) != 0) { - op = URX_DOLLAR_D; + appendOp(URX_DOLLAR_D, 0); } else if ((fModeFlags & UREGEX_MULTILINE) != 0 && (fModeFlags & UREGEX_UNIX_LINES) != 0) { - op = URX_DOLLAR_MD; + appendOp(URX_DOLLAR_MD, 0); } - fRXPat->fCompiledPat->addElement(URX_BUILD(op, 0), *fStatus); } break; case doBackslashA: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_CARET, 0), *fStatus); + appendOp(URX_CARET, 0); break; case doBackslashB: @@ -1186,7 +1131,7 @@ UBool RegexCompile::doParseActions(int32 #endif fixLiterals(FALSE); int32_t op = (fModeFlags & UREGEX_UWORD)? URX_BACKSLASH_BU : URX_BACKSLASH_B; - fRXPat->fCompiledPat->addElement(URX_BUILD(op, 1), *fStatus); + appendOp(op, 1); } break; @@ -1199,63 +1144,59 @@ UBool RegexCompile::doParseActions(int32 #endif fixLiterals(FALSE); int32_t op = (fModeFlags & UREGEX_UWORD)? URX_BACKSLASH_BU : URX_BACKSLASH_B; - fRXPat->fCompiledPat->addElement(URX_BUILD(op, 0), *fStatus); + appendOp(op, 0); } break; case doBackslashD: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKSLASH_D, 1), *fStatus); + appendOp(URX_BACKSLASH_D, 1); break; case doBackslashd: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKSLASH_D, 0), *fStatus); + appendOp(URX_BACKSLASH_D, 0); break; case doBackslashG: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKSLASH_G, 0), *fStatus); + appendOp(URX_BACKSLASH_G, 0); break; case doBackslashS: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement( - URX_BUILD(URX_STAT_SETREF_N, URX_ISSPACE_SET), *fStatus); + appendOp(URX_STAT_SETREF_N, URX_ISSPACE_SET); break; case doBackslashs: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement( - URX_BUILD(URX_STATIC_SETREF, URX_ISSPACE_SET), *fStatus); + appendOp(URX_STATIC_SETREF, URX_ISSPACE_SET); break; case doBackslashW: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement( - URX_BUILD(URX_STAT_SETREF_N, URX_ISWORD_SET), *fStatus); + appendOp(URX_STAT_SETREF_N, URX_ISWORD_SET); break; case doBackslashw: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement( - URX_BUILD(URX_STATIC_SETREF, URX_ISWORD_SET), *fStatus); + appendOp(URX_STATIC_SETREF, URX_ISWORD_SET); break; case doBackslashX: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKSLASH_X, 0), *fStatus); + appendOp(URX_BACKSLASH_X, 0); break; case doBackslashZ: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_DOLLAR, 0), *fStatus); + appendOp(URX_DOLLAR, 0); break; case doBackslashz: fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKSLASH_Z, 0), *fStatus); + appendOp(URX_BACKSLASH_Z, 0); break; case doEscapeError: @@ -1315,13 +1256,11 @@ UBool RegexCompile::doParseActions(int32 U_ASSERT(groupNum > 0); // Shouldn't happen. '\0' begins an octal escape sequence, // and shouldn't enter this code path at all. fixLiterals(FALSE); - int32_t op; if (fModeFlags & UREGEX_CASE_INSENSITIVE) { - op = URX_BUILD(URX_BACKREF_I, groupNum); + appendOp(URX_BACKREF_I, groupNum); } else { - op = URX_BUILD(URX_BACKREF, groupNum); + appendOp(URX_BACKREF, groupNum); } - fRXPat->fCompiledPat->addElement(op, *fStatus); } break; @@ -1342,22 +1281,18 @@ UBool RegexCompile::doParseActions(int32 { // Emit the STO_SP int32_t topLoc = blockTopLoc(TRUE); - int32_t stoLoc = fRXPat->fDataSize; - fRXPat->fDataSize++; // Reserve the data location for storing save stack ptr. - int32_t op = URX_BUILD(URX_STO_SP, stoLoc); + int32_t stoLoc = allocateData(1); // Reserve the data location for storing save stack ptr. + int32_t op = buildOp(URX_STO_SP, stoLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc); // Emit the STATE_SAVE - op = URX_BUILD(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+2); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_STATE_SAVE, fRXPat->fCompiledPat->size()+2); // Emit the JMP - op = URX_BUILD(URX_JMP, topLoc+1); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_JMP, topLoc+1); // Emit the LD_SP - op = URX_BUILD(URX_LD_SP, stoLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LD_SP, stoLoc); } break; @@ -1377,23 +1312,20 @@ UBool RegexCompile::doParseActions(int32 insertOp(topLoc); // emit STO_SP loc - int32_t stoLoc = fRXPat->fDataSize; - fRXPat->fDataSize++; // Reserve the data location for storing save stack ptr. - int32_t op = URX_BUILD(URX_STO_SP, stoLoc); + int32_t stoLoc = allocateData(1); // Reserve the data location for storing save stack ptr. + int32_t op = buildOp(URX_STO_SP, stoLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc); // Emit the SAVE_STATE 5 int32_t L7 = fRXPat->fCompiledPat->size()+1; - op = URX_BUILD(URX_STATE_SAVE, L7); + op = buildOp(URX_STATE_SAVE, L7); fRXPat->fCompiledPat->setElementAt(op, topLoc+1); // Append the JMP operation. - op = URX_BUILD(URX_JMP, topLoc+1); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_JMP, topLoc+1); // Emit the LD_SP loc - op = URX_BUILD(URX_LD_SP, stoLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LD_SP, stoLoc); } break; @@ -1412,19 +1344,17 @@ UBool RegexCompile::doParseActions(int32 insertOp(topLoc); // Emit the STO_SP - int32_t stoLoc = fRXPat->fDataSize; - fRXPat->fDataSize++; // Reserve the data location for storing save stack ptr. - int32_t op = URX_BUILD(URX_STO_SP, stoLoc); + int32_t stoLoc = allocateData(1); // Reserve the data location for storing save stack ptr. + int32_t op = buildOp(URX_STO_SP, stoLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc); // Emit the SAVE_STATE int32_t continueLoc = fRXPat->fCompiledPat->size()+1; - op = URX_BUILD(URX_STATE_SAVE, continueLoc); + op = buildOp(URX_STATE_SAVE, continueLoc); fRXPat->fCompiledPat->setElementAt(op, topLoc+1); // Emit the LD_SP - op = URX_BUILD(URX_LD_SP, stoLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LD_SP, stoLoc); } break; @@ -1481,8 +1411,8 @@ UBool RegexCompile::doParseActions(int32 // is an '|' alternation within the parens. { fixLiterals(FALSE); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_NOP, 0), *fStatus); + appendOp(URX_NOP, 0); + appendOp(URX_NOP, 0); // On the Parentheses stack, start a new frame and add the postions // of the two NOPs (a normal non-capturing () frame, except for the @@ -1819,7 +1749,6 @@ void RegexCompile::literalChar(UChar32 c // //------------------------------------------------------------------------------ void RegexCompile::fixLiterals(UBool split) { - int32_t op = 0; // An op from/for the compiled pattern. // If no literal characters have been scanned but not yet had code generated // for them, nothing needs to be done. @@ -1858,23 +1787,23 @@ void RegexCompile::fixLiterals(UBool // Single character, emit a URX_ONECHAR op to match it. if ((fModeFlags & UREGEX_CASE_INSENSITIVE) && u_hasBinaryProperty(lastCodePoint, UCHAR_CASE_SENSITIVE)) { - op = URX_BUILD(URX_ONECHAR_I, lastCodePoint); + appendOp(URX_ONECHAR_I, lastCodePoint); } else { - op = URX_BUILD(URX_ONECHAR, lastCodePoint); + appendOp(URX_ONECHAR, lastCodePoint); } - fRXPat->fCompiledPat->addElement(op, *fStatus); } else { // Two or more chars, emit a URX_STRING to match them. + if (fLiteralChars.length() > 0x00ffffff || fRXPat->fLiteralText.length() > 0x00ffffff) { + error(U_REGEX_PATTERN_TOO_BIG); + } if (fModeFlags & UREGEX_CASE_INSENSITIVE) { - op = URX_BUILD(URX_STRING_I, fRXPat->fLiteralText.length()); + appendOp(URX_STRING_I, fRXPat->fLiteralText.length()); } else { // TODO here: add optimization to split case sensitive strings of length two // into two single char ops, for efficiency. - op = URX_BUILD(URX_STRING, fRXPat->fLiteralText.length()); + appendOp(URX_STRING, fRXPat->fLiteralText.length()); } - fRXPat->fCompiledPat->addElement(op, *fStatus); - op = URX_BUILD(URX_STRING_LEN, fLiteralChars.length()); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_STRING_LEN, fLiteralChars.length()); // Add this string into the accumulated strings of the compiled pattern. fRXPat->fLiteralText.append(fLiteralChars); @@ -1884,8 +1813,58 @@ void RegexCompile::fixLiterals(UBool } +int32_t RegexCompile::buildOp(int32_t type, int32_t val) { + if (U_FAILURE(*fStatus)) { + return 0; + } + if (type < 0 || type > 255) { + U_ASSERT(FALSE); + error(U_REGEX_INTERNAL_ERROR); + type = URX_RESERVED_OP; + } + if (val > 0x00ffffff) { + U_ASSERT(FALSE); + error(U_REGEX_INTERNAL_ERROR); + val = 0; + } + if (val < 0) { + if (!(type == URX_RESERVED_OP_N || type == URX_RESERVED_OP)) { + U_ASSERT(FALSE); + error(U_REGEX_INTERNAL_ERROR); + return -1; + } + if (URX_TYPE(val) != 0xff) { + U_ASSERT(FALSE); + error(U_REGEX_INTERNAL_ERROR); + return -1; + } + type = URX_RESERVED_OP_N; + } + return (type << 24) | val; +} + +//------------------------------------------------------------------------------ +// +// appendOp() Append a new instruction onto the compiled pattern +// Includes error checking, limiting the size of the +// pattern to lengths that can be represented in the +// 24 bit operand field of an instruction. +// +//------------------------------------------------------------------------------ +void RegexCompile::appendOp(int32_t op) { + if (U_FAILURE(*fStatus)) { + return; + } + fRXPat->fCompiledPat->addElement(op, *fStatus); + if ((fRXPat->fCompiledPat->size() > 0x00fffff0) && U_SUCCESS(*fStatus)) { + error(U_REGEX_PATTERN_TOO_BIG); + } +} +void RegexCompile::appendOp(int32_t type, int32_t val) { + appendOp(buildOp(type, val)); +} //------------------------------------------------------------------------------ @@ -1901,7 +1880,7 @@ void RegexCompile::insertOp(int32_t wh UVector64 *code = fRXPat->fCompiledPat; U_ASSERT(where>0 && where < code->size()); - int32_t nop = URX_BUILD(URX_NOP, 0); + int32_t nop = buildOp(URX_NOP, 0); code->insertElementAt(nop, where, *fStatus); // Walk through the pattern, looking for any ops with targets that @@ -1922,7 +1901,7 @@ void RegexCompile::insertOp(int32_t wh // Target location for this opcode is after the insertion point and // needs to be incremented to adjust for the insertion. opValue++; - op = URX_BUILD(opType, opValue); + op = buildOp(opType, opValue); code->setElementAt(op, loc); } } @@ -1947,6 +1926,58 @@ void RegexCompile::insertOp(int32_t wh } +//------------------------------------------------------------------------------ +// +// allocateData() Allocate storage in the matcher's static data area. +// Return the index for the newly allocated data. +// The storage won't actually exist until we are running a match +// operation, but the storage indexes are inserted into various +// opcodes while compiling the pattern. +// +//------------------------------------------------------------------------------ +int32_t RegexCompile::allocateData(int32_t size) { + if (U_FAILURE(*fStatus)) { + return 0; + } + if (size <= 0 || size > 0x100 || fRXPat->fDataSize < 0) { + error(U_REGEX_INTERNAL_ERROR); + return 0; + } + int32_t dataIndex = fRXPat->fDataSize; + fRXPat->fDataSize += size; + if (fRXPat->fDataSize >= 0x00fffff0) { + error(U_REGEX_INTERNAL_ERROR); + } + return dataIndex; +} + + +//------------------------------------------------------------------------------ +// +// allocateStackData() Allocate space in the back-tracking stack frame. +// Return the index for the newly allocated data. +// The frame indexes are inserted into various +// opcodes while compiling the pattern, meaning that frame +// size must be restricted to the size that will fit +// as an operand (24 bits). +// +//------------------------------------------------------------------------------ +int32_t RegexCompile::allocateStackData(int32_t size) { + if (U_FAILURE(*fStatus)) { + return 0; + } + if (size <= 0 || size > 0x100 || fRXPat->fFrameSize < 0) { + error(U_REGEX_INTERNAL_ERROR); + return 0; + } + int32_t dataIndex = fRXPat->fFrameSize; + fRXPat->fFrameSize += size; + if (fRXPat->fFrameSize >= 0x00fffff0) { + error(U_REGEX_PATTERN_TOO_BIG); + } + return dataIndex; +} + //------------------------------------------------------------------------------ // @@ -1989,7 +2020,7 @@ int32_t RegexCompile::blockTopLoc(UBoo theLoc--; } if (reserveLoc) { - int32_t nop = URX_BUILD(URX_NOP, 0); + int32_t nop = buildOp(URX_NOP, 0); fRXPat->fCompiledPat->insertElementAt(nop, theLoc, *fStatus); } } @@ -2064,8 +2095,7 @@ void RegexCompile::handleCloseParen() { U_ASSERT(URX_TYPE(captureOp) == URX_START_CAPTURE); int32_t frameVarLocation = URX_VAL(captureOp); - int32_t endCaptureOp = URX_BUILD(URX_END_CAPTURE, frameVarLocation); - fRXPat->fCompiledPat->addElement(endCaptureOp, *fStatus); + appendOp(URX_END_CAPTURE, frameVarLocation); } break; case atomic: @@ -2076,8 +2106,7 @@ void RegexCompile::handleCloseParen() { int32_t stoOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen+1); U_ASSERT(URX_TYPE(stoOp) == URX_STO_SP); int32_t stoLoc = URX_VAL(stoOp); - int32_t ldOp = URX_BUILD(URX_LD_SP, stoLoc); - fRXPat->fCompiledPat->addElement(ldOp, *fStatus); + appendOp(URX_LD_SP, stoLoc); } break; @@ -2086,8 +2115,7 @@ void RegexCompile::handleCloseParen() { int32_t startOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen-5); U_ASSERT(URX_TYPE(startOp) == URX_LA_START); int32_t dataLoc = URX_VAL(startOp); - int32_t op = URX_BUILD(URX_LA_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LA_END, dataLoc); } break; @@ -2097,19 +2125,16 @@ void RegexCompile::handleCloseParen() { int32_t startOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen-1); U_ASSERT(URX_TYPE(startOp) == URX_LA_START); int32_t dataLoc = URX_VAL(startOp); - int32_t op = URX_BUILD(URX_LA_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - op = URX_BUILD(URX_BACKTRACK, 0); - fRXPat->fCompiledPat->addElement(op, *fStatus); - op = URX_BUILD(URX_LA_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LA_END, dataLoc); + appendOp(URX_BACKTRACK, 0); + appendOp(URX_LA_END, dataLoc); // Patch the URX_SAVE near the top of the block. // The destination of the SAVE is the final LA_END that was just added. int32_t saveOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen); U_ASSERT(URX_TYPE(saveOp) == URX_STATE_SAVE); int32_t dest = fRXPat->fCompiledPat->size()-1; - saveOp = URX_BUILD(URX_STATE_SAVE, dest); + saveOp = buildOp(URX_STATE_SAVE, dest); fRXPat->fCompiledPat->setElementAt(saveOp, fMatchOpenParen); } break; @@ -2122,10 +2147,8 @@ void RegexCompile::handleCloseParen() { int32_t startOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen-4); U_ASSERT(URX_TYPE(startOp) == URX_LB_START); int32_t dataLoc = URX_VAL(startOp); - int32_t op = URX_BUILD(URX_LB_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); - op = URX_BUILD(URX_LA_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LB_END, dataLoc); + appendOp(URX_LA_END, dataLoc); // Determine the min and max bounds for the length of the // string that the pattern can match. @@ -2157,8 +2180,7 @@ void RegexCompile::handleCloseParen() { int32_t startOp = (int32_t)fRXPat->fCompiledPat->elementAti(fMatchOpenParen-5); U_ASSERT(URX_TYPE(startOp) == URX_LB_START); int32_t dataLoc = URX_VAL(startOp); - int32_t op = URX_BUILD(URX_LBN_END, dataLoc); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(URX_LBN_END, dataLoc); // Determine the min and max bounds for the length of the // string that the pattern can match. @@ -2179,7 +2201,7 @@ void RegexCompile::handleCloseParen() { // Insert the pattern location to continue at after a successful match // as the last operand of the URX_LBN_CONT - op = URX_BUILD(URX_RELOC_OPRND, fRXPat->fCompiledPat->size()); + int32_t op = buildOp(URX_RELOC_OPRND, fRXPat->fCompiledPat->size()); fRXPat->fCompiledPat->setElementAt(op, fMatchOpenParen-1); } break; @@ -2220,7 +2242,7 @@ void RegexCompile::compileSet(Uni case 0: { // Set of no elements. Always fails to match. - fRXPat->fCompiledPat->addElement(URX_BUILD(URX_BACKTRACK, 0), *fStatus); + appendOp(URX_BACKTRACK, 0); delete theSet; } break; @@ -2241,8 +2263,7 @@ void RegexCompile::compileSet(Uni // Put it into the compiled pattern as a set. int32_t setNumber = fRXPat->fSets->size(); fRXPat->fSets->addElement(theSet, *fStatus); - int32_t setOp = URX_BUILD(URX_SETREF, setNumber); - fRXPat->fCompiledPat->addElement(setOp, *fStatus); + appendOp(URX_SETREF, setNumber); } } } @@ -2281,13 +2302,10 @@ void RegexCompile::compileInterva // counterLoc --> Loop counter // +1 --> Input index (for breaking non-progressing loops) // (Only present if unbounded upper limit on loop) - int32_t counterLoc = fRXPat->fFrameSize; - fRXPat->fFrameSize++; - if (fIntervalUpper < 0) { - fRXPat->fFrameSize++; - } + int32_t dataSize = fIntervalUpper < 0 ? 2 : 1; + int32_t counterLoc = allocateStackData(dataSize); - int32_t op = URX_BUILD(InitOp, counterLoc); + int32_t op = buildOp(InitOp, counterLoc); fRXPat->fCompiledPat->setElementAt(op, topOfBlock); // The second operand of CTR_INIT is the location following the end of the loop. @@ -2295,7 +2313,7 @@ void RegexCompile::compileInterva // compilation of something later on causes the code to grow and the target // position to move. int32_t loopEnd = fRXPat->fCompiledPat->size(); - op = URX_BUILD(URX_RELOC_OPRND, loopEnd); + op = buildOp(URX_RELOC_OPRND, loopEnd); fRXPat->fCompiledPat->setElementAt(op, topOfBlock+1); // Followed by the min and max counts. @@ -2304,8 +2322,7 @@ void RegexCompile::compileInterva // Apend the CTR_LOOP op. The operand is the location of the CTR_INIT op. // Goes at end of the block being looped over, so just append to the code so far. - op = URX_BUILD(LoopOp, topOfBlock); - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(LoopOp, topOfBlock); if ((fIntervalLow & 0xff000000) != 0 || (fIntervalUpper > 0 && (fIntervalUpper & 0xff000000) != 0)) { @@ -2350,7 +2367,7 @@ UBool RegexCompile::compileInlineInterva // int32_t endOfSequenceLoc = fRXPat->fCompiledPat->size()-1 + fIntervalUpper + (fIntervalUpper-fIntervalLow); - int32_t saveOp = URX_BUILD(URX_STATE_SAVE, endOfSequenceLoc); + int32_t saveOp = buildOp(URX_STATE_SAVE, endOfSequenceLoc); if (fIntervalLow == 0) { insertOp(topOfBlock); fRXPat->fCompiledPat->setElementAt(saveOp, topOfBlock); @@ -2363,13 +2380,10 @@ UBool RegexCompile::compileInlineInterva // it was put there when it was originally encountered. int32_t i; for (i=1; i<fIntervalUpper; i++ ) { - if (i == fIntervalLow) { - fRXPat->fCompiledPat->addElement(saveOp, *fStatus); - } - if (i > fIntervalLow) { - fRXPat->fCompiledPat->addElement(saveOp, *fStatus); + if (i >= fIntervalLow) { + appendOp(saveOp); } - fRXPat->fCompiledPat->addElement(op, *fStatus); + appendOp(op); } return TRUE; } @@ -3500,7 +3514,7 @@ void RegexCompile::stripNOPs() { int32_t operandAddress = URX_VAL(op); U_ASSERT(operandAddress>=0 && operandAddress<deltas.size()); int32_t fixedOperandAddress = operandAddress - deltas.elementAti(operandAddress); - op = URX_BUILD(opType, fixedOperandAddress); + op = buildOp(opType, fixedOperandAddress); fRXPat->fCompiledPat->setElementAt(op, dst); dst++; break; @@ -3515,7 +3529,7 @@ void RegexCompile::stripNOPs() { break; } where = fRXPat->fGroupMap->elementAti(where-1); - op = URX_BUILD(opType, where); + op = buildOp(opType, where); fRXPat->fCompiledPat->setElementAt(op, dst); dst++; @@ -3867,7 +3881,7 @@ void RegexCompile::nextChar(RegexPattern //------------------------------------------------------------------------------ // // scanNamedChar - // Get a UChar32 from a \N{UNICODE CHARACTER NAME} in the pattern. +// Get a UChar32 from a \N{UNICODE CHARACTER NAME} in the pattern. // // The scan position will be at the 'N'. On return // the scan position should be just after the '}' Index: icu/source/i18n/regexcmp.h =================================================================== --- icu.orig/icu/source/i18n/regexcmp.h +++ icu/source/i18n/regexcmp.h @@ -103,6 +103,13 @@ private: void fixLiterals(UBool split=FALSE); // Generate code for pending literal characters. void insertOp(int32_t where); // Open up a slot for a new op in the // generated code at the specified location. + void appendOp(int32_t op); // Append a new op to the compiled pattern. + void appendOp(int32_t type, int32_t val); // Build & append a new op to the compiled pattern. + int32_t buildOp(int32_t type, int32_t val); // Construct a new pcode instruction. + int32_t allocateData(int32_t size); // Allocate space in the matcher data area. + // Return index of the newly allocated data. + int32_t allocateStackData(int32_t size); // Allocate space in the match back-track stack frame. + // Return offset index in the frame. int32_t minMatchLength(int32_t start, int32_t end); int32_t maxMatchLength(int32_t start, Index: icu/source/i18n/regeximp.h =================================================================== --- icu.orig/icu/source/i18n/regeximp.h +++ icu/source/i18n/regeximp.h @@ -254,7 +254,6 @@ enum { // // Convenience macros for assembling and disassembling a compiled operation. // -#define URX_BUILD(type, val) (int32_t)((type << 24) | (val)) #define URX_TYPE(x) ((uint32_t)(x) >> 24) #define URX_VAL(x) ((x) & 0xffffff) Index: icu/source/test/intltest/regextst.cpp =================================================================== --- icu.orig/icu/source/test/intltest/regextst.cpp +++ icu/source/test/intltest/regextst.cpp @@ -131,6 +131,9 @@ void RegexTest::runIndexedTest( int32_t case 21: name = "Bug 9283"; if (exec) Bug9283(); break; + case 22: name = "TestBug11371"; + if (exec) TestBug11371(); + break; default: name = ""; break; //needed to end loop @@ -5219,6 +5222,49 @@ void RegexTest::Bug9283() { } } +void RegexTest::TestBug11371() { + if (quick) { + logln("Skipping test. Runs in exhuastive mode only."); + return; + } + UErrorCode status = U_ZERO_ERROR; + UnicodeString patternString; + + for (int i=0; i<8000000; i++) { + patternString.append(UnicodeString("()")); + } + LocalPointer<RegexPattern> compiledPat(RegexPattern::compile(patternString, 0, status)); + if (status != U_REGEX_PATTERN_TOO_BIG) { + errln("File %s, line %d expected status=U_REGEX_PATTERN_TOO_BIG; got %s.", + __FILE__, __LINE__, u_errorName(status)); + } + + status = U_ZERO_ERROR; + patternString = "("; + for (int i=0; i<20000000; i++) { + patternString.append(UnicodeString("A++")); + } + patternString.append(UnicodeString("){0}B++")); + LocalPointer<RegexPattern> compiledPat2(RegexPattern::compile(patternString, 0, status)); + if (status != U_REGEX_PATTERN_TOO_BIG) { + errln("File %s, line %d expected status=U_REGEX_PATTERN_TOO_BIG; got %s.", + __FILE__, __LINE__, u_errorName(status)); + } + + // Pattern with too much string data, such that string indexes overflow operand data field size + // in compiled instruction. + status = U_ZERO_ERROR; + patternString = ""; + while (patternString.length() < 0x00ffffff) { + patternString.append(UnicodeString("stuff and things dont you know, these are a few of my favorite strings\n")); + } + patternString.append(UnicodeString("X? trailing string")); + LocalPointer<RegexPattern> compiledPat3(RegexPattern::compile(patternString, 0, status)); + if (status != U_REGEX_PATTERN_TOO_BIG) { + errln("File %s, line %d expected status=U_REGEX_PATTERN_TOO_BIG; got %s.", + __FILE__, __LINE__, u_errorName(status)); + } +} void RegexTest::CheckInvBufSize() { if(inv_next>=INV_BUFSIZ) { Index: icu/source/test/intltest/regextst.h =================================================================== --- icu.orig/icu/source/test/intltest/regextst.h +++ icu/source/test/intltest/regextst.h @@ -50,6 +50,7 @@ public: // The following functions are internal to the regexp tests. virtual void assertUText(const char *expected, UText *actual, const char *file, int line); + virtual void TestBug11371(); virtual void assertUTextInvariant(const char *invariant, UText *actual, const char *file, int line); virtual UBool doRegexLMTest(const char *pat, const char *text, UBool looking, UBool match, int32_t line); virtual UBool doRegexLMTestUTF8(const char *pat, const char *text, UBool looking, UBool match, int32_t line);
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