You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.3 KiB
69 lines
2.3 KiB
/* -*- c++ -*-
|
|
kmime_charfreq.h
|
|
|
|
KMime, the KDE internet mail/usenet news message library.
|
|
Copyright (c) 2001-2002 Marc Mutz <mutz@kde.org>
|
|
|
|
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 2 of the License, or
|
|
(at your option) any later version.
|
|
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, US
|
|
*/
|
|
#ifndef __KMIME_CHARFREQ_H__
|
|
#define __KMIME_CHARFREQ_H__
|
|
|
|
#include <tqcstring.h>
|
|
#include <kdepimmacros.h>
|
|
#undef None
|
|
|
|
namespace KMime {
|
|
|
|
class KDE_EXPORT CharFreq {
|
|
public:
|
|
CharFreq( const TQByteArray & buf );
|
|
CharFreq( const char * buf, size_t len );
|
|
|
|
enum Type { None = 0, EightBitData, Binary = EightBitData,
|
|
SevenBitData, EightBitText, SevenBitText };
|
|
|
|
Type type() const;
|
|
bool isEightBitData() const;
|
|
bool isEightBitText() const;
|
|
bool isSevenBitData() const;
|
|
bool isSevenBitText() const;
|
|
/** Returns true if buf has trailing whitespace, i.e. if any line ends
|
|
with space (' ') or tab ('\t'). */
|
|
bool hasTrailingWhitespace() const;
|
|
/** Returns true if buf tqcontains a line that starts with "From ". */
|
|
bool hasLeadingFrom() const;
|
|
/** Returns the percentage of printable characters: printable/total.
|
|
If total == 0, the result is undefined. */
|
|
float printableRatio() const;
|
|
/** Returns the percentage of control code (CTLs): CTL/total.
|
|
If total == 0, the result is undefined. */
|
|
float controlCodesRatio() const;
|
|
|
|
protected:
|
|
uint NUL; // count of NUL chars
|
|
uint CTL; // count of CTLs (incl. DEL, excl. CR, LF, HT)
|
|
uint CR, LF; // count of CRs and LFs
|
|
uint CRLF; // count of LFs, preceded by CRs
|
|
uint printable; // count of printable US-ASCII chars (SPC..~)
|
|
uint eightBit; // count of other latin1 chars (those with 8th bit set)
|
|
uint total;
|
|
uint lineMin;
|
|
uint lineMax;
|
|
bool mTrailingWS; // does the buffer contain trailing whitespace?
|
|
bool mLeadingFrom; // does the buffer contain lines starting with "From "?
|
|
|
|
private:
|
|
void count( const char * buf, size_t len );
|
|
};
|
|
|
|
} // namespace KMime
|
|
|
|
#endif /* __KMIME_CHARFREQ_H__ */
|