Function HandleFindCommand

Source/cmStringCommand.cxx:310–354

}

bool HandleFindCommand(std::vector<std::string> const& args,
                       cmExecutionStatus& status)
{
  // check if all required parameters were passed
  if (args.size() < 4 || args.size() > 5) {
    status.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") {
    status.SetError("sub-command FIND: unknown last parameter");
    return false;
  }

  // local parameter names.
  std::string const& sstring = args[1];
  std::string const& schar = args[2];
  std::string const& outvar = args[3];

  // ensure that the user cannot accidentally specify REVERSE as a variable
  if (outvar == "REVERSE") {
    status.SetError("sub-command FIND does not allow one 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
  auto pos = cm::CMakeString{ sstring }.Find(
    schar,
    reverseMode ? cm::CMakeString::FindFrom::End
                : cm::CMakeString::FindFrom::Begin);

  status.GetMakefile().AddDefinition(
    outvar, pos != cm::CMakeString::npos ? std::to_string(pos) : "-1");

  return true;
}

bool HandleCompareCommand(std::vector<std::string> const& args,
                          cmExecutionStatus& status)