92 lines
3.6 KiB
C++
92 lines
3.6 KiB
C++
/*=============================================================================
|
|
Boost.Wave: A Standard compliant C++ preprocessor library
|
|
|
|
http://www.boost.org/
|
|
|
|
Copyright (c) 2001 Daniel C. Nuffer.
|
|
Copyright (c) 2001-2012 Hartmut Kaiser.
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
|
|
#if !defined(BOOST_SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED)
|
|
#define BOOST_SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED
|
|
|
|
#include <boost/wave/wave_config.hpp>
|
|
#include <boost/wave/cpplexer/re2clex/aq.hpp>
|
|
|
|
// this must occur after all of the includes and before any code appears
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
|
#include BOOST_ABI_PREFIX
|
|
#endif
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
namespace boost {
|
|
namespace wave {
|
|
namespace cpplexer {
|
|
namespace re2clex {
|
|
|
|
template<typename Iterator>
|
|
struct Scanner;
|
|
typedef unsigned char uchar;
|
|
|
|
template<typename Iterator>
|
|
struct Scanner {
|
|
typedef int (* ReportErrorProc)(struct Scanner const *, int errorcode,
|
|
char const *, ...);
|
|
|
|
|
|
Scanner(Iterator const & f, Iterator const & l)
|
|
: first(f), act(f), last(l),
|
|
bot(0), top(0), eof(0), tok(0), ptr(0), cur(0), lim(0),
|
|
eol_offsets(aq_create())
|
|
// remaining data members externally initialized
|
|
{}
|
|
|
|
~Scanner()
|
|
{
|
|
aq_terminate(eol_offsets);
|
|
}
|
|
|
|
Iterator first; /* start of input buffer */
|
|
Iterator act; /* act position of input buffer */
|
|
Iterator last; /* end (one past last char) of input buffer */
|
|
uchar* bot; /* beginning of the current buffer */
|
|
uchar* top; /* top of the current buffer */
|
|
uchar* eof; /* when we read in the last buffer, will point 1 past the
|
|
end of the file, otherwise 0 */
|
|
uchar* tok; /* points to the beginning of the current token */
|
|
uchar* ptr; /* used for YYMARKER - saves backtracking info */
|
|
uchar* cur; /* saves the cursor (maybe is redundant with tok?) */
|
|
uchar* lim; /* used for YYLIMIT - points to the end of the buffer */
|
|
/* (lim == top) except for the last buffer, it points to
|
|
the end of the input (lim == eof - 1) */
|
|
std::size_t line; /* current line being lex'ed */
|
|
std::size_t column; /* current token start column position */
|
|
std::size_t curr_column; /* current column position */
|
|
ReportErrorProc error_proc; /* must be != 0, this function is called to
|
|
report an error */
|
|
char const *file_name; /* name of the lex'ed file */
|
|
aq_queue eol_offsets;
|
|
bool enable_ms_extensions; /* enable MS extensions */
|
|
bool act_in_c99_mode; /* lexer works in C99 mode */
|
|
bool detect_pp_numbers; /* lexer should prefer to detect pp-numbers */
|
|
bool enable_import_keyword; /* recognize import as a keyword */
|
|
bool single_line_only; /* don't report missing eol's in C++ comments */
|
|
bool act_in_cpp0x_mode; /* lexer works in C++11 mode */
|
|
bool act_in_cpp2a_mode; /* lexer works in C++20 mode */
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
} // namespace re2clex
|
|
} // namespace cpplexer
|
|
} // namespace wave
|
|
} // namespace boost
|
|
|
|
// the suffix header occurs after all of the code
|
|
#ifdef BOOST_HAS_ABI_HEADERS
|
|
#include BOOST_ABI_SUFFIX
|
|
#endif
|
|
|
|
#endif // !defined(BOOST_SCANNER_HPP_F4FB01EB_E75C_4537_A146_D34B9895EF37_INCLUDED)
|