[cfe-dev] base type name strings

[John Thompson]

Hi,

Given a QualType that has a class, struct, or enum name in there somewhere,
I'd like to get a string that just contains the leaf type name, and a string
that contains just the qualified type name.

For example, given a QualType whose getAsString() call returns "class
namespace::classname *&", I'd like to get a string like "classname" and a
string like "namespace::classname".

At present I'm doing it very naively like this:

//...
std::string baseName =
LuaBindingsConsumer::StripToBaseName(type.GetAsString());
std::string qualifiedBaseName =
LuaBindingsConsumer::StripToQualifiedName(type.GetAsString());
//...

  // Strip a type string of everything but the base type name.
std::string LuaBindingsConsumer::StripToBaseName(std::string typeName) {
  typeName = StripToQualifiedName(typeName);
  size_t index;
  while ((index = typeName.find_first_of("::")) < typeName.length())
    typeName = typeName.substr(index + 2);
  return typeName;
}
  // Strip a type string of everything but the qualified base type name.
std::string LuaBindingsConsumer::StripToQualifiedName(std::string typeName)
{
  size_t index;
  if (typeName.compare(0, 6, "class ") == 0)
    typeName = typeName.substr(6);
  else if (typeName.compare(0, 7, "struct ") == 0)
    typeName = typeName.substr(7);
  else if (typeName.compare(0, 5, "enum ") == 0)
    typeName = typeName.substr(5);
  while ((index = typeName.find_first_of('*')) < typeName.length())
    typeName = typeName.substr(0, index);
  while ((index = typeName.find_first_of('&')) < typeName.length())
    typeName = typeName.substr(0, index);
  while ((index = typeName.find_first_of('[')) < typeName.length())
    typeName = typeName.substr(0, index);
  while ((index = typeName.find_first_of('{')) < typeName.length())
    typeName = typeName.substr(0, index);
  while ((index = typeName.find_first_of(' ')) < typeName.length())
    typeName = typeName.substr(0, index);
  while ((index = typeName.find_first_of('\t')) < typeName.length())
    typeName = typeName.substr(0, index);
  return typeName;
}

but there must be a better way.

Thanks.

-John

-- 
John Thompson
John.Thompson.JTSoftware at gmail.com
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