| /*========================================================================= |
| |
| Program: CMake - Cross-Platform Makefile Generator |
| Module: $RCSfile$ |
| Language: C++ |
| Date: $Date$ |
| Version: $Revision$ |
| |
| Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. |
| See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. |
| |
| This software is distributed WITHOUT ANY WARRANTY; without even |
| the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| PURPOSE. See the above copyright notices for more information. |
| |
| =========================================================================*/ |
| #include "cmStringCommand.h" |
| #include <cmsys/RegularExpression.hxx> |
| #include <cmsys/SystemTools.hxx> |
| |
| #include <stdlib.h> // required for atoi |
| #include <ctype.h> |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::InitialPass(std::vector<std::string> const& args) |
| { |
| 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 == "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 == "SUBSTRING") |
| { |
| return this->HandleSubstringCommand(args); |
| } |
| |
| std::string e = "does not recognize sub-command "+subCommand; |
| this->SetError(e.c_str()); |
| return false; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleToUpperLowerCommand( |
| std::vector<std::string> 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.c_str(), output.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleAsciiCommand(std::vector<std::string> 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<char>(ch); |
| } |
| else |
| { |
| std::string error = "Character with code "; |
| error += ch; |
| error += " does not exist."; |
| this->SetError(error.c_str()); |
| return false; |
| } |
| } |
| // Store the output in the provided variable. |
| this->Makefile->AddDefinition(outvar.c_str(), output.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleConfigureCommand( |
| std::vector<std::string> 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().c_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].c_str(), output.c_str()); |
| |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleRegexCommand(std::vector<std::string> 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 MATCH 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.c_str()); |
| return false; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::RegexMatch(std::vector<std::string> const& args) |
| { |
| //"STRING(REGEX MATCH <regular_expression> <output variable> |
| // <input> [<input>...])\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]; |
| } |
| |
| // 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.c_str()); |
| return false; |
| } |
| |
| // Scan through the input for all matches. |
| std::string output; |
| if(re.find(input.c_str())) |
| { |
| 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.c_str()); |
| return false; |
| } |
| output = input.substr(l, r-l); |
| } |
| |
| // Store the output in the provided variable. |
| this->Makefile->AddDefinition(outvar.c_str(), output.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::RegexMatchAll(std::vector<std::string> const& args) |
| { |
| //"STRING(REGEX MATCHALL <regular_expression> <output variable> <input> |
| // [<input>...])\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]; |
| } |
| |
| // 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.c_str()); |
| return false; |
| } |
| |
| // Scan through the input for all matches. |
| std::string output; |
| const char* p = input.c_str(); |
| while(re.find(p)) |
| { |
| 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.c_str()); |
| 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.c_str(), output.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::RegexReplace(std::vector<std::string> const& args) |
| { |
| //"STRING(REGEX REPLACE <regular_expression> <replace_expression> |
| // <output variable> <input> [<input>...])\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<RegexReplacement> 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.c_str()); |
| 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]; |
| } |
| |
| // 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.c_str()); |
| 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)) |
| { |
| 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.c_str()); |
| 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.c_str()); |
| 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.c_str(), output.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleCompareCommand(std::vector<std::string> 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.c_str()); |
| 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.c_str(), "1"); |
| } |
| else |
| { |
| this->Makefile->AddDefinition(outvar.c_str(), "0"); |
| } |
| return true; |
| } |
| std::string e = "sub-command COMPARE does not recognize mode "+mode; |
| this->SetError(e.c_str()); |
| return false; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleReplaceCommand(std::vector<std::string> const& |
| args) |
| { |
| if(args.size() < 5) |
| { |
| this->SetError("sub-command REPLACE requires 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.c_str(), input.c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand::HandleSubstringCommand(std::vector<std::string> const& |
| args) |
| { |
| if(args.size() != 5) |
| { |
| this->SetError("sub-command REPLACE 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<int>(stringLength); |
| if ( begin < 0 || begin > intStringLength ) |
| { |
| cmOStringStream ostr; |
| ostr << "begin index: " << begin << " is out of range 0 - " |
| << stringLength; |
| this->SetError(ostr.str().c_str()); |
| return false; |
| } |
| int leftOverLength = intStringLength - begin; |
| if ( end < 0 || end > leftOverLength ) |
| { |
| cmOStringStream ostr; |
| ostr << "end index: " << end << " is out of range " << 0 << " - " |
| << leftOverLength; |
| this->SetError(ostr.str().c_str()); |
| return false; |
| } |
| |
| this->Makefile->AddDefinition(variableName.c_str(), |
| stringValue.substr(begin, end).c_str()); |
| return true; |
| } |
| |
| //---------------------------------------------------------------------------- |
| bool cmStringCommand |
| ::HandleLengthCommand(std::vector<std::string> 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<int>(length)); |
| |
| this->Makefile->AddDefinition(variableName.c_str(), buffer); |
| return true; |
| } |