astFromStringastFromString - Re-create an Object from an in-memory serialisation

Description:
This function returns a pointer to a new ObjectObject created from the supplied text string, which should have been created by astToStringastToString.
Synopsis:
AstObject $*$astFromString( const char $*$string )
Parameters:
string
Pointer to a text string holding an Object serialisation created previously by astToString.
Returned Value:
astFromString()
Pointer to a new Object created from the supplied serialisation, or NULL if the serialisation was invalid, or an error occurred.