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ENH: Add String length and substring

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This commit is contained in:
Andy Cedilnik
2005-10-17 09:56:42 -04:00
parent 6e5cdd6de7
commit 12ef4edf64
4 changed files with 80 additions and 1 deletions
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Source/cmStringCommand.cxx
+64
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@@ -58,6 +58,14 @@ bool cmStringCommand::InitialPass(std::vector<std::string> const& args)
{
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());
@@ -522,3 +530,59 @@ bool cmStringCommand::HandleReplaceCommand(std::vector<std::string> const& args)
m_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 > intStringLength )
{
cmOStringStream ostr;
ostr << "end index: " << end << " is out of range " << 0 << " - " << leftOverLength;
this->SetError(ostr.str().c_str());
return false;
}
m_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", length);
m_Makefile->AddDefinition(variableName.c_str(), buffer);
return true;
}