/usr/include/vmime/parserHelpers.hpp is in libvmime-dev 0.9.1-5build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2009 Vincent Richard <vincent@vincent-richard.net>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#ifndef VMIME_PARSERHELPERS_HPP_INCLUDED
#define VMIME_PARSERHELPERS_HPP_INCLUDED
#include "vmime/types.hpp"
#include "vmime/utility/stringUtils.hpp"
#include <algorithm>
namespace vmime
{
class parserHelpers
{
public:
static bool isSpace(const char_t c)
{
return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
}
static bool isDigit(const char_t c)
{
return (c >= '0' && c <= '9');
}
static bool isAlpha(const char_t c)
{
return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
}
static char_t toLower(const char_t c)
{
if (c >= 'A' && c <= 'Z')
return ('a' + (c - 'A'));
else
return c;
}
// Checks whether a character is in the 7-bit US-ASCII charset
static bool isAscii(const char_t c)
{
const unsigned int x = static_cast <unsigned int>(c);
return (x <= 127);
}
// Checks whether a character has a visual representation
static bool isPrint(const char_t c)
{
const unsigned int x = static_cast <unsigned int>(c);
return (x >= 0x20 && x <= 0x7E);
}
};
} // vmime
#endif // VMIME_PARSERHELPERS_HPP_INCLUDED
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