/*============================================================================ CMake - Cross Platform Makefile Generator Copyright 2000-2009 Kitware, Inc., Insight Software Consortium Distributed under the OSI-approved BSD License (the "License"); see accompanying file Copyright.txt for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more information. ============================================================================*/ #include "cmStringCommand.h" #include "cmCryptoHash.h" #include #include #include // required for atoi #include #include #include #include //---------------------------------------------------------------------------- bool cmStringCommand ::InitialPass(std::vector const& args, cmExecutionStatus &) { if(args.size() < 1) { this->SetError("must be called with at least one argument."); return false; } const std::string &subCommand = args[0]; if(subCommand == "REGEX") { return this->HandleRegexCommand(args); } else if(subCommand == "REPLACE") { return this->HandleReplaceCommand(args); } else if ( subCommand == "MD5" || subCommand == "SHA1" || subCommand == "SHA224" || subCommand == "SHA256" || subCommand == "SHA384" || subCommand == "SHA512" ) { return this->HandleHashCommand(args); } else if(subCommand == "TOLOWER") { return this->HandleToUpperLowerCommand(args, false); } else if(subCommand == "TOUPPER") { return this->HandleToUpperLowerCommand(args, true); } else if(subCommand == "COMPARE") { return this->HandleCompareCommand(args); } else if(subCommand == "ASCII") { return this->HandleAsciiCommand(args); } else if(subCommand == "CONFIGURE") { return this->HandleConfigureCommand(args); } else if(subCommand == "LENGTH") { return this->HandleLengthCommand(args); } else if(subCommand == "CONCAT") { return this->HandleConcatCommand(args); } else if(subCommand == "SUBSTRING") { return this->HandleSubstringCommand(args); } else if(subCommand == "STRIP") { return this->HandleStripCommand(args); } else if(subCommand == "RANDOM") { return this->HandleRandomCommand(args); } else if(subCommand == "FIND") { return this->HandleFindCommand(args); } else if(subCommand == "TIMESTAMP") { return this->HandleTimestampCommand(args); } else if(subCommand == "MAKE_C_IDENTIFIER") { return this->HandleMakeCIdentifierCommand(args); } else if(subCommand == "GENEX_STRIP") { return this->HandleGenexStripCommand(args); } else if(subCommand == "UUID") { return this->HandleUuidCommand(args); } std::string e = "does not recognize sub-command "+subCommand; this->SetError(e); return false; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleHashCommand(std::vector const& args) { #if defined(CMAKE_BUILD_WITH_CMAKE) if(args.size() != 3) { cmOStringStream e; e << args[0] << " requires an output variable and an input string"; this->SetError(e.str()); return false; } cmsys::auto_ptr hash(cmCryptoHash::New(args[0].c_str())); if(hash.get()) { std::string out = hash->HashString(args[2]); this->Makefile->AddDefinition(args[1], out.c_str()); return true; } return false; #else cmOStringStream e; e << args[0] << " not available during bootstrap"; this->SetError(e.str().c_str()); return false; #endif } //---------------------------------------------------------------------------- bool cmStringCommand::HandleToUpperLowerCommand( std::vector const& args, bool toUpper) { if ( args.size() < 3 ) { this->SetError("no output variable specified"); return false; } std::string outvar = args[2]; std::string output; if (toUpper) { output = cmSystemTools::UpperCase(args[1]); } else { output = cmSystemTools::LowerCase(args[1]); } // Store the output in the provided variable. this->Makefile->AddDefinition(outvar, output.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleAsciiCommand(std::vector const& args) { if ( args.size() < 3 ) { this->SetError("No output variable specified"); return false; } std::string::size_type cc; std::string outvar = args[args.size()-1]; std::string output = ""; for ( cc = 1; cc < args.size()-1; cc ++ ) { int ch = atoi(args[cc].c_str()); if ( ch > 0 && ch < 256 ) { output += static_cast(ch); } else { std::string error = "Character with code "; error += args[cc]; error += " does not exist."; this->SetError(error); return false; } } // Store the output in the provided variable. this->Makefile->AddDefinition(outvar, output.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleConfigureCommand( std::vector const& args) { if ( args.size() < 2 ) { this->SetError("No input string specified."); return false; } else if ( args.size() < 3 ) { this->SetError("No output variable specified."); return false; } // Parse options. bool escapeQuotes = false; bool atOnly = false; for(unsigned int i = 3; i < args.size(); ++i) { if(args[i] == "@ONLY") { atOnly = true; } else if(args[i] == "ESCAPE_QUOTES") { escapeQuotes = true; } else { cmOStringStream err; err << "Unrecognized argument \"" << args[i] << "\""; this->SetError(err.str()); return false; } } // Configure the string. std::string output; this->Makefile->ConfigureString(args[1], output, atOnly, escapeQuotes); // Store the output in the provided variable. this->Makefile->AddDefinition(args[2], output.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleRegexCommand(std::vector const& args) { if(args.size() < 2) { this->SetError("sub-command REGEX requires a mode to be specified."); return false; } std::string mode = args[1]; if(mode == "MATCH") { if(args.size() < 5) { this->SetError("sub-command REGEX, mode MATCH needs " "at least 5 arguments total to command."); return false; } return this->RegexMatch(args); } else if(mode == "MATCHALL") { if(args.size() < 5) { this->SetError("sub-command REGEX, mode MATCHALL needs " "at least 5 arguments total to command."); return false; } return this->RegexMatchAll(args); } else if(mode == "REPLACE") { if(args.size() < 6) { this->SetError("sub-command REGEX, mode REPLACE needs " "at least 6 arguments total to command."); return false; } return this->RegexReplace(args); } std::string e = "sub-command REGEX does not recognize mode "+mode; this->SetError(e); return false; } //---------------------------------------------------------------------------- bool cmStringCommand::RegexMatch(std::vector const& args) { //"STRING(REGEX MATCH // [...])\n"; std::string regex = args[2]; std::string outvar = args[3]; // Concatenate all the last arguments together. std::string input = args[4]; for(unsigned int i=5; i < args.size(); ++i) { input += args[i]; } this->ClearMatches(this->Makefile); // Compile the regular expression. cmsys::RegularExpression re; if(!re.compile(regex.c_str())) { std::string e = "sub-command REGEX, mode MATCH failed to compile regex \""+regex+"\"."; this->SetError(e); return false; } // Scan through the input for all matches. std::string output; if(re.find(input.c_str())) { this->StoreMatches(this->Makefile, re); std::string::size_type l = re.start(); std::string::size_type r = re.end(); if(r-l == 0) { std::string e = "sub-command REGEX, mode MATCH regex \""+regex+ "\" matched an empty string."; this->SetError(e); return false; } output = input.substr(l, r-l); } // Store the output in the provided variable. this->Makefile->AddDefinition(outvar, output.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::RegexMatchAll(std::vector const& args) { //"STRING(REGEX MATCHALL // [...])\n"; std::string regex = args[2]; std::string outvar = args[3]; // Concatenate all the last arguments together. std::string input = args[4]; for(unsigned int i=5; i < args.size(); ++i) { input += args[i]; } this->ClearMatches(this->Makefile); // Compile the regular expression. cmsys::RegularExpression re; if(!re.compile(regex.c_str())) { std::string e = "sub-command REGEX, mode MATCHALL failed to compile regex \""+ regex+"\"."; this->SetError(e); return false; } // Scan through the input for all matches. std::string output; const char* p = input.c_str(); while(re.find(p)) { this->StoreMatches(this->Makefile, re); std::string::size_type l = re.start(); std::string::size_type r = re.end(); if(r-l == 0) { std::string e = "sub-command REGEX, mode MATCHALL regex \""+ regex+"\" matched an empty string."; this->SetError(e); return false; } if(output.length() > 0) { output += ";"; } output += std::string(p+l, r-l); p += r; } // Store the output in the provided variable. this->Makefile->AddDefinition(outvar, output.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::RegexReplace(std::vector const& args) { //"STRING(REGEX REPLACE // [...])\n" std::string regex = args[2]; std::string replace = args[3]; std::string outvar = args[4]; // Pull apart the replace expression to find the escaped [0-9] values. std::vector replacement; std::string::size_type l = 0; while(l < replace.length()) { std::string::size_type r = replace.find("\\", l); if(r == std::string::npos) { r = replace.length(); replacement.push_back(replace.substr(l, r-l)); } else { if(r-l > 0) { replacement.push_back(replace.substr(l, r-l)); } if(r == (replace.length()-1)) { this->SetError("sub-command REGEX, mode REPLACE: " "replace-expression ends in a backslash."); return false; } if((replace[r+1] >= '0') && (replace[r+1] <= '9')) { replacement.push_back(replace[r+1]-'0'); } else if(replace[r+1] == 'n') { replacement.push_back("\n"); } else if(replace[r+1] == '\\') { replacement.push_back("\\"); } else { std::string e = "sub-command REGEX, mode REPLACE: Unknown escape \""; e += replace.substr(r, 2); e += "\" in replace-expression."; this->SetError(e); return false; } r += 2; } l = r; } // Concatenate all the last arguments together. std::string input = args[5]; for(unsigned int i=6; i < args.size(); ++i) { input += args[i]; } this->ClearMatches(this->Makefile); // Compile the regular expression. cmsys::RegularExpression re; if(!re.compile(regex.c_str())) { std::string e = "sub-command REGEX, mode REPLACE failed to compile regex \""+ regex+"\"."; this->SetError(e); return false; } // Scan through the input for all matches. std::string output; std::string::size_type base = 0; while(re.find(input.c_str()+base)) { this->StoreMatches(this->Makefile, re); std::string::size_type l2 = re.start(); std::string::size_type r = re.end(); // Concatenate the part of the input that was not matched. output += input.substr(base, l2); // Make sure the match had some text. if(r-l2 == 0) { std::string e = "sub-command REGEX, mode REPLACE regex \""+ regex+"\" matched an empty string."; this->SetError(e); return false; } // Concatenate the replacement for the match. for(unsigned int i=0; i < replacement.size(); ++i) { if(replacement[i].number < 0) { // This is just a plain-text part of the replacement. output += replacement[i].value; } else { // Replace with part of the match. int n = replacement[i].number; std::string::size_type start = re.start(n); std::string::size_type end = re.end(n); std::string::size_type len = input.length()-base; if((start != std::string::npos) && (end != std::string::npos) && (start <= len) && (end <= len)) { output += input.substr(base+start, end-start); } else { std::string e = "sub-command REGEX, mode REPLACE: replace expression \""+ replace+"\" contains an out-of-range escape for regex \""+ regex+"\"."; this->SetError(e); return false; } } } // Move past the match. base += r; } // Concatenate the text after the last match. output += input.substr(base, input.length()-base); // Store the output in the provided variable. this->Makefile->AddDefinition(outvar, output.c_str()); return true; } //---------------------------------------------------------------------------- void cmStringCommand::ClearMatches(cmMakefile* mf) { for (unsigned int i=0; i<10; i++) { char name[128]; sprintf(name, "CMAKE_MATCH_%d", i); const char* s = mf->GetDefinition(name); if(s && *s != 0) { mf->AddDefinition(name, ""); mf->MarkVariableAsUsed(name); } } } //---------------------------------------------------------------------------- void cmStringCommand::StoreMatches(cmMakefile* mf,cmsys::RegularExpression& re) { for (unsigned int i=0; i<10; i++) { std::string m = re.match(i); if(m.size() > 0) { char name[128]; sprintf(name, "CMAKE_MATCH_%d", i); mf->AddDefinition(name, re.match(i).c_str()); mf->MarkVariableAsUsed(name); } } } //---------------------------------------------------------------------------- bool cmStringCommand::HandleFindCommand(std::vector const& args) { // check if all required parameters were passed if(args.size() < 4 || args.size() > 5) { this->SetError("sub-command FIND requires 3 or 4 parameters."); return false; } // check if the reverse flag was set or not bool reverseMode = false; if(args.size() == 5 && args[4] == "REVERSE") { reverseMode = true; } // if we have 5 arguments the last one must be REVERSE if(args.size() == 5 && args[4] != "REVERSE") { this->SetError("sub-command FIND: unknown last parameter"); return false; } // local parameter names. const std::string& sstring = args[1]; const std::string& schar = args[2]; const std::string& outvar = args[3]; // ensure that the user cannot accidentally specify REVERSE as a variable if(outvar == "REVERSE") { this->SetError("sub-command FIND does not allow to select REVERSE as " "the output variable. " "Maybe you missed the actual output variable?"); return false; } // try to find the character and return its position size_t pos; if(!reverseMode) { pos = sstring.find(schar); } else { pos = sstring.rfind(schar); } if(std::string::npos != pos) { cmOStringStream s; s << pos; this->Makefile->AddDefinition(outvar, s.str().c_str()); return true; } // the character was not found, but this is not really an error this->Makefile->AddDefinition(outvar, "-1"); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleCompareCommand(std::vector const& args) { if(args.size() < 2) { this->SetError("sub-command COMPARE requires a mode to be specified."); return false; } std::string mode = args[1]; if((mode == "EQUAL") || (mode == "NOTEQUAL") || (mode == "LESS") || (mode == "GREATER")) { if(args.size() < 5) { std::string e = "sub-command COMPARE, mode "; e += mode; e += " needs at least 5 arguments total to command."; this->SetError(e); return false; } const std::string& left = args[2]; const std::string& right = args[3]; const std::string& outvar = args[4]; bool result; if(mode == "LESS") { result = (left < right); } else if(mode == "GREATER") { result = (left > right); } else if(mode == "EQUAL") { result = (left == right); } else // if(mode == "NOTEQUAL") { result = !(left == right); } if(result) { this->Makefile->AddDefinition(outvar, "1"); } else { this->Makefile->AddDefinition(outvar, "0"); } return true; } std::string e = "sub-command COMPARE does not recognize mode "+mode; this->SetError(e); return false; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleReplaceCommand(std::vector const& args) { if(args.size() < 5) { this->SetError("sub-command REPLACE requires at least four arguments."); return false; } const std::string& matchExpression = args[1]; const std::string& replaceExpression = args[2]; const std::string& variableName = args[3]; std::string input = args[4]; for(unsigned int i=5; i < args.size(); ++i) { input += args[i]; } cmsys::SystemTools::ReplaceString(input, matchExpression.c_str(), replaceExpression.c_str()); this->Makefile->AddDefinition(variableName, input.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleSubstringCommand(std::vector const& args) { if(args.size() != 5) { this->SetError("sub-command SUBSTRING requires four arguments."); return false; } const std::string& stringValue = args[1]; int begin = atoi(args[2].c_str()); int end = atoi(args[3].c_str()); const std::string& variableName = args[4]; size_t stringLength = stringValue.size(); int intStringLength = static_cast(stringLength); if ( begin < 0 || begin > intStringLength ) { cmOStringStream ostr; ostr << "begin index: " << begin << " is out of range 0 - " << stringLength; this->SetError(ostr.str()); return false; } int leftOverLength = intStringLength - begin; if ( end < -1 || end > leftOverLength ) { cmOStringStream ostr; ostr << "end index: " << end << " is out of range -1 - " << leftOverLength; this->SetError(ostr.str()); return false; } this->Makefile->AddDefinition(variableName, stringValue.substr(begin, end).c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleLengthCommand(std::vector const& args) { if(args.size() != 3) { this->SetError("sub-command LENGTH requires two arguments."); return false; } const std::string& stringValue = args[1]; const std::string& variableName = args[2]; size_t length = stringValue.size(); char buffer[1024]; sprintf(buffer, "%d", static_cast(length)); this->Makefile->AddDefinition(variableName, buffer); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleConcatCommand(std::vector const& args) { if(args.size() < 2) { this->SetError("sub-command CONCAT requires at least one argument."); return false; } std::string const& variableName = args[1]; std::string value; for(unsigned int i = 2; i < args.size(); ++i) { value += args[i]; } this->Makefile->AddDefinition(variableName, value.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleMakeCIdentifierCommand(std::vector const& args) { if(args.size() != 3) { this->SetError("sub-command MAKE_C_IDENTIFIER requires two arguments."); return false; } const std::string& input = args[1]; const std::string& variableName = args[2]; this->Makefile->AddDefinition(variableName, cmSystemTools::MakeCidentifier(input.c_str()).c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleGenexStripCommand(std::vector const& args) { if(args.size() != 3) { this->SetError("sub-command GENEX_STRIP requires two arguments."); return false; } const std::string& input = args[1]; std::string result = cmGeneratorExpression::Preprocess(input, cmGeneratorExpression::StripAllGeneratorExpressions); const std::string& variableName = args[2]; this->Makefile->AddDefinition(variableName, result.c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand::HandleStripCommand( std::vector const& args) { if(args.size() != 3) { this->SetError("sub-command STRIP requires two arguments."); return false; } const std::string& stringValue = args[1]; const std::string& variableName = args[2]; size_t inStringLength = stringValue.size(); size_t startPos = inStringLength + 1; size_t endPos = 0; const char* ptr = stringValue.c_str(); size_t cc; for ( cc = 0; cc < inStringLength; ++ cc ) { if ( !isspace(*ptr) ) { if ( startPos > inStringLength ) { startPos = cc; } endPos = cc; } ++ ptr; } size_t outLength = 0; // if the input string didn't contain any non-space characters, return // an empty string if (startPos > inStringLength) { outLength = 0; startPos = 0; } else { outLength=endPos - startPos + 1; } this->Makefile->AddDefinition(variableName, stringValue.substr(startPos, outLength).c_str()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleRandomCommand(std::vector const& args) { if(args.size() < 2 || args.size() == 3 || args.size() == 5) { this->SetError("sub-command RANDOM requires at least one argument."); return false; } static bool seeded = false; bool force_seed = false; unsigned int seed = 0; int length = 5; const char cmStringCommandDefaultAlphabet[] = "qwertyuiopasdfghjklzxcvbnm" "QWERTYUIOPASDFGHJKLZXCVBNM" "0123456789"; std::string alphabet; if ( args.size() > 3 ) { size_t i = 1; size_t stopAt = args.size() - 2; for ( ; i < stopAt; ++i ) { if ( args[i] == "LENGTH" ) { ++i; length = atoi(args[i].c_str()); } else if ( args[i] == "ALPHABET" ) { ++i; alphabet = args[i]; } else if ( args[i] == "RANDOM_SEED" ) { ++i; seed = static_cast(atoi(args[i].c_str())); force_seed = true; } } } if ( !alphabet.size() ) { alphabet = cmStringCommandDefaultAlphabet; } double sizeofAlphabet = static_cast(alphabet.size()); if ( sizeofAlphabet < 1 ) { this->SetError("sub-command RANDOM invoked with bad alphabet."); return false; } if ( length < 1 ) { this->SetError("sub-command RANDOM invoked with bad length."); return false; } const std::string& variableName = args[args.size()-1]; std::vector result; if (!seeded || force_seed) { seeded = true; srand(force_seed? seed : cmSystemTools::RandomSeed()); } const char* alphaPtr = alphabet.c_str(); int cc; for ( cc = 0; cc < length; cc ++ ) { int idx=(int) (sizeofAlphabet* rand()/(RAND_MAX+1.0)); result.push_back(*(alphaPtr + idx)); } result.push_back(0); this->Makefile->AddDefinition(variableName, &*result.begin()); return true; } //---------------------------------------------------------------------------- bool cmStringCommand ::HandleTimestampCommand(std::vector const& args) { if(args.size() < 2) { this->SetError("sub-command TIMESTAMP requires at least one argument."); return false; } else if(args.size() > 4) { this->SetError("sub-command TIMESTAMP takes at most three arguments."); return false; } unsigned int argsIndex = 1; const std::string &outputVariable = args[argsIndex++]; std::string formatString; if(args.size() > argsIndex && args[argsIndex] != "UTC") { formatString = args[argsIndex++]; } bool utcFlag = false; if(args.size() > argsIndex) { if(args[argsIndex] == "UTC") { utcFlag = true; } else { std::string e = " TIMESTAMP sub-command does not recognize option " + args[argsIndex] + "."; this->SetError(e); return false; } } cmTimestamp timestamp; std::string result = timestamp.CurrentTime(formatString, utcFlag); this->Makefile->AddDefinition(outputVariable, result.c_str()); return true; } bool cmStringCommand ::HandleUuidCommand(std::vector const& args) { #if defined(CMAKE_BUILD_WITH_CMAKE) unsigned int argsIndex = 1; if(args.size() < 2) { this->SetError("UUID sub-command requires an output variable."); return false; } const std::string &outputVariable = args[argsIndex++]; std::string uuidNamespaceString; std::string uuidName; std::string uuidType; bool uuidUpperCase = false; while(args.size() > argsIndex) { if(args[argsIndex] == "NAMESPACE") { ++argsIndex; if(argsIndex >= args.size()) { this->SetError("UUID sub-command, NAMESPACE requires a value."); return false; } uuidNamespaceString = args[argsIndex++]; } else if(args[argsIndex] == "NAME") { ++argsIndex; if(argsIndex >= args.size()) { this->SetError("UUID sub-command, NAME requires a value."); return false; } uuidName = args[argsIndex++]; } else if(args[argsIndex] == "TYPE") { ++argsIndex; if(argsIndex >= args.size()) { this->SetError("UUID sub-command, TYPE requires a value."); return false; } uuidType = args[argsIndex++]; } else if(args[argsIndex] == "UPPER") { ++argsIndex; uuidUpperCase = true; } else { std::string e = "UUID sub-command does not recognize option " + args[argsIndex] + "."; this->SetError(e); return false; } } std::string uuid; cmUuid uuidGenerator; std::vector uuidNamespace; if(!uuidGenerator.StringToBinary(uuidNamespaceString, uuidNamespace)) { this->SetError("UUID sub-command, malformed NAMESPACE UUID."); return false; } if(uuidType == "MD5") { uuid = uuidGenerator.FromMd5(uuidNamespace, uuidName); } else if(uuidType == "SHA1") { uuid = uuidGenerator.FromSha1(uuidNamespace, uuidName); } else { std::string e = "UUID sub-command, unknown TYPE '" + uuidType + "'."; this->SetError(e); return false; } if(uuid.empty()) { this->SetError("UUID sub-command, generation failed."); return false; } if(uuidUpperCase) { uuid = cmSystemTools::UpperCase(uuid); } this->Makefile->AddDefinition(outputVariable, uuid.c_str()); return true; #else cmOStringStream e; e << args[0] << " not available during bootstrap"; this->SetError(e.str().c_str()); return false; #endif }