/usr/include/tnt/parser.h is in libtntnet-dev 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | /*
* Copyright (C) 2003-2005 Tommi Maekitalo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TNT_PARSER_H
#define TNT_PARSER_H
#include <iostream>
namespace tnt
{
class PrePostNop
{
protected:
void pre(char ch) { }
bool post(bool ret) { return ret; }
};
template <typename this_type, class PrePostProcessor = PrePostNop>
class Parser : public PrePostProcessor
{
protected:
typedef bool (this_type::*state_type)(char);
state_type state;
state_type nextState;
bool failedFlag;
bool state_skipws(char ch)
{
if (ch != ' ' && ch != '\t')
{
state = nextState;
return (static_cast<this_type*>(this)->*state)(ch);
}
else
return false;
}
void skipWs(state_type nextState_)
{
state = &Parser::state_skipws;
nextState = nextState_;
}
public:
explicit Parser(state_type initialState)
: state(initialState),
failedFlag(false)
{ }
bool parse(char ch)
{
PrePostProcessor::pre(ch);
return PrePostProcessor::post(
(static_cast<this_type*>(this)->*state)(ch) );
}
bool parse(const char* str, unsigned size)
{
for (unsigned s = 0; s < size; ++s)
if (parse(str[s]))
return true;
return false;
}
bool parse(std::istream& in)
{
std::streambuf* buf = in.rdbuf();
while (buf->sgetc() != std::ios::traits_type::eof())
if ( parse(buf->sbumpc()) )
return true;
in.setstate(std::ios::eofbit);
return false;
}
bool failed() const
{
return failedFlag;
}
};
}
#endif // TNT_PARSER_H
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