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// Copyright (C) 2003 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_TOKENIZER_KERNEl_C_
#define DLIB_TOKENIZER_KERNEl_C_
#include "tokenizer_kernel_abstract.h"
#include "../assert.h"
#include <string>
#include <iostream>
namespace dlib
{
template <
typename tokenizer
>
class tokenizer_kernel_c : public tokenizer
{
public:
std::istream& get_stream (
) const;
void get_token (
int& type,
std::string& token
);
void set_identifier_token (
const std::string& head,
const std::string& body
);
int peek_type (
) const;
const std::string& peek_token (
) const;
};
template <
typename tokenizer
>
inline void swap (
tokenizer_kernel_c<tokenizer>& a,
tokenizer_kernel_c<tokenizer>& b
) { a.swap(b); }
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// member function definitions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
template <
typename tokenizer
>
void tokenizer_kernel_c<tokenizer>::
set_identifier_token (
const std::string& head,
const std::string& body
)
{
using namespace std;
// make sure requires clause is not broken
DLIB_CASSERT( head.find_first_of(" \r\t\n0123456789") == string::npos &&
body.find_first_of(" \r\t\n") == string::npos ,
"\tvoid tokenizer::set_identifier_token()"
<< "\n\tyou can't define the IDENTIFIER token this way."
<< "\n\thead: " << head
<< "\n\tbody: " << body
<< "\n\tthis: " << this
);
// call the real function
tokenizer::set_identifier_token(head,body);
}
// ----------------------------------------------------------------------------------------
template <
typename tokenizer
>
std::istream& tokenizer_kernel_c<tokenizer>::
get_stream (
) const
{
// make sure requires clause is not broken
DLIB_CASSERT( this->stream_is_set() == true,
"\tstd::istream& tokenizer::get_stream()"
<< "\n\tyou must set a stream for this object before you can get it"
<< "\n\tthis: " << this
);
// call the real function
return tokenizer::get_stream();
}
// ----------------------------------------------------------------------------------------
template <
typename tokenizer
>
int tokenizer_kernel_c<tokenizer>::
peek_type (
) const
{
// make sure requires clause is not broken
DLIB_CASSERT( this->stream_is_set() == true,
"\tint tokenizer::peek_type()"
<< "\n\tyou must set a stream for this object before you peek at what it contains"
<< "\n\tthis: " << this
);
// call the real function
return tokenizer::peek_type();
}
// ----------------------------------------------------------------------------------------
template <
typename tokenizer
>
const std::string& tokenizer_kernel_c<tokenizer>::
peek_token (
) const
{
// make sure requires clause is not broken
DLIB_CASSERT( this->stream_is_set() == true,
"\tint tokenizer::peek_token()"
<< "\n\tyou must set a stream for this object before you peek at what it contains"
<< "\n\tthis: " << this
);
// call the real function
return tokenizer::peek_token();
}
// ----------------------------------------------------------------------------------------
template <
typename tokenizer
>
void tokenizer_kernel_c<tokenizer>::
get_token (
int& type,
std::string& token
)
{
// make sure requires clause is not broken
DLIB_CASSERT( this->stream_is_set() == true,
"\tvoid tokenizer::get_token()"
<< "\n\tyou must set a stream for this object before you can get tokens from it."
<< "\n\tthis: " << this
);
// call the real function
tokenizer::get_token(type,token);
}
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_TOKENIZER_KERNEl_C_
|
