diff options
| -rw-r--r-- | Source/cmSystemTools.cxx | 51 |
1 files changed, 18 insertions, 33 deletions
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx index ff05975..7cc63bb 100644 --- a/Source/cmSystemTools.cxx +++ b/Source/cmSystemTools.cxx @@ -1044,7 +1044,7 @@ void cmSystemTools::ExpandListArgument(const std::string& arg, bool emptyArgs) { // If argument is empty, it is an empty list. - if(arg.length() == 0 && !emptyArgs) + if(!emptyArgs && arg.empty()) { return; } @@ -1054,10 +1054,11 @@ void cmSystemTools::ExpandListArgument(const std::string& arg, newargs.push_back(arg); return; } - std::vector<char> newArgVec; + std::string newArg; + const char *last = arg.c_str(); // Break the string at non-escaped semicolons not nested in []. int squareNesting = 0; - for(const char* c = arg.c_str(); *c; ++c) + for(const char* c = last; *c; ++c) { switch(*c) { @@ -1065,34 +1066,21 @@ void cmSystemTools::ExpandListArgument(const std::string& arg, { // We only want to allow escaping of semicolons. Other // escapes should not be processed here. - ++c; - if(*c == ';') - { - newArgVec.push_back(*c); - } - else + const char* next = c + 1; + if(*next == ';') { - newArgVec.push_back('\\'); - if(*c) - { - newArgVec.push_back(*c); - } - else - { - // Terminate the loop properly. - --c; - } + newArg.append(last, c - last); + // Skip over the escape character + last = c = next; } } break; case '[': { ++squareNesting; - newArgVec.push_back(*c); } break; case ']': { --squareNesting; - newArgVec.push_back(*c); } break; case ';': { @@ -1100,31 +1088,28 @@ void cmSystemTools::ExpandListArgument(const std::string& arg, // brackets. if(squareNesting == 0) { - if ( newArgVec.size() || emptyArgs ) + newArg.append(last, c - last); + // Skip over the semicolon + last = c + 1; + if ( !newArg.empty() || emptyArgs ) { // Add the last argument if the string is not empty. - newArgVec.push_back(0); - newargs.push_back(&*newArgVec.begin()); - newArgVec.clear(); + newargs.push_back(newArg); + newArg = ""; } } - else - { - newArgVec.push_back(*c); - } } break; default: { // Just append this character. - newArgVec.push_back(*c); } break; } } - if ( newArgVec.size() || emptyArgs ) + newArg.append(last); + if ( !newArg.empty() || emptyArgs ) { // Add the last argument if the string is not empty. - newArgVec.push_back(0); - newargs.push_back(&*newArgVec.begin()); + newargs.push_back(newArg); } } |