gtsam/wrap/Qualified.h

142 lines
3.7 KiB
C++

/* ----------------------------------------------------------------------------
* GTSAM Copyright 2010, Georgia Tech Research Corporation,
* Atlanta, Georgia 30332-0415
* All Rights Reserved
* Authors: Frank Dellaert, et al. (see THANKS for the full author list)
* See LICENSE for the license information
* -------------------------------------------------------------------------- */
/**
* @file Qualified.h
* @brief Qualified name
* @author Frank Dellaert
* @date Nov 11, 2014
**/
#pragma once
#include <string>
#include <vector>
namespace wrap {
/**
* Class to encapuslate a qualified name, i.e., with (nested) namespaces
*/
struct Qualified {
std::vector<std::string> namespaces; ///< Stack of namespaces
std::string name; ///< type name
Qualified(const std::string& name_ = "") :
name(name_) {
}
bool empty() const {
return namespaces.empty() && name.empty();
}
void clear() {
namespaces.clear();
name.clear();
}
bool operator!=(const Qualified& other) const {
return other.name != name || other.namespaces != namespaces;
}
/// Return a qualified string using given delimiter
std::string qualifiedName(const std::string& delimiter = "") const {
std::string result;
for (std::size_t i = 0; i < namespaces.size(); ++i)
result += (namespaces[i] + delimiter);
result += name;
return result;
}
/// Return a matlab file name, i.e. "toolboxPath/+ns1/+ns2/name.m"
std::string matlabName(const std::string& toolboxPath) const {
std::string result = toolboxPath;
for (std::size_t i = 0; i < namespaces.size(); ++i)
result += ("/+" + namespaces[i]);
result += "/" + name + ".m";
return result;
}
friend std::ostream& operator<<(std::ostream& os, const Qualified& q) {
os << q.qualifiedName("::");
return os;
}
};
} // \namespace wrap
#include <boost/spirit/include/classic_core.hpp>
#include <boost/spirit/include/classic_push_back_actor.hpp>
#include <boost/spirit/include/classic_clear_actor.hpp>
#include <boost/spirit/include/classic_assign_actor.hpp>
namespace classic = BOOST_SPIRIT_CLASSIC_NS;
// http://boost-spirit.com/distrib/spirit_1_8_2/libs/spirit/doc/grammar.html
struct type_grammar: public classic::grammar<type_grammar> {
wrap::Qualified& result_; ///< successful parse will be placed in here
/// Construct type grammar and specify where result is placed
type_grammar(wrap::Qualified& result) :
result_(result) {
}
/// Definition of type grammar
template<typename ScannerT>
struct definition {
typedef classic::rule<ScannerT> Rule;
Rule void_p, basisType_p, eigenType_p, keywords_p, stlType_p, className_p,
namepsace_p, namespace_del_p, class_p, type_p;
definition(type_grammar const& self) {
using namespace classic;
void_p = str_p("void")[assign_a(self.result_.name)];
basisType_p = (str_p("string") | "bool" | "size_t" | "int" | "double"
| "char" | "unsigned char")[assign_a(self.result_.name)];
eigenType_p = (str_p("Vector") | "Matrix")[assign_a(self.result_.name)];
keywords_p = (str_p("const") | "static" | "namespace" | "void"
| basisType_p);
stlType_p = (str_p("vector") | "list");
className_p = (lexeme_d[upper_p >> *(alnum_p | '_')] - eigenType_p
- keywords_p) | stlType_p;
namepsace_p = lexeme_d[lower_p >> *(alnum_p | '_')] - keywords_p;
namespace_del_p = namepsace_p[push_back_a(self.result_.namespaces)]
>> str_p("::");
class_p = *namespace_del_p >> className_p[assign_a(self.result_.name)];
type_p = eps_p[clear_a(self.result_)] //
>> void_p | basisType_p | eigenType_p | class_p;
}
Rule const& start() const {
return type_p;
}
};
};