254 lines
7.5 KiB
C++
254 lines
7.5 KiB
C++
//
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// VMime library (http://www.vmime.org)
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// Copyright (C) 2002-2009 Vincent Richard <vincent@vincent-richard.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 3 of
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// the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// Linking this library statically or dynamically with other modules is making
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// a combined work based on this library. Thus, the terms and conditions of
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// the GNU General Public License cover the whole combination.
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//
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#ifndef VMIME_TEXT_HPP_INCLUDED
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#define VMIME_TEXT_HPP_INCLUDED
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#include "vmime/headerFieldValue.hpp"
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#include "vmime/base.hpp"
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#include "vmime/word.hpp"
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namespace vmime
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{
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/** List of encoded-words, as defined in RFC-2047 (basic type).
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*/
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class text : public headerFieldValue
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{
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public:
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text();
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text(const text& t);
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text(const string& t, const charset& ch);
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explicit text(const string& t);
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explicit text(const word& w);
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~text();
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public:
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bool operator==(const text& t) const;
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bool operator!=(const text& t) const;
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ref <component> clone() const;
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void copyFrom(const component& other);
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text& operator=(const component& other);
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text& operator=(const text& other);
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const std::vector <ref <component> > getChildComponents();
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/** Add a word at the end of the list.
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*
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* @param w word to append
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*/
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void appendWord(ref <word> w);
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/** Insert a new word before the specified position.
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*
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* @param pos position at which to insert the new word (0 to insert at
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* the beginning of the list)
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* @param w word to insert
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*/
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void insertWordBefore(const int pos, ref <word> w);
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/** Insert a new word after the specified position.
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*
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* @param pos position of the word before the new word
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* @param w word to insert
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*/
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void insertWordAfter(const int pos, ref <word> w);
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/** Remove the word at the specified position.
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*
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* @param pos position of the word to remove
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*/
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void removeWord(const int pos);
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/** Remove all words from the list.
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*/
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void removeAllWords();
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/** Return the number of words in the list.
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*
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* @return number of words
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*/
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int getWordCount() const;
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/** Tests whether the list of words is empty.
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*
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* @return true if there is no word, false otherwise
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*/
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bool isEmpty() const;
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/** Return the word at the specified position.
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*
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* @param pos position
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* @return word at position 'pos'
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*/
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const ref <word> getWordAt(const int pos);
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/** Return the word at the specified position.
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*
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* @param pos position
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* @return word at position 'pos'
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*/
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const ref <const word> getWordAt(const int pos) const;
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/** Return the word list.
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*
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* @return list of words
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*/
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const std::vector <ref <const word> > getWordList() const;
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/** Return the word list.
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*
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* @return list of words
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*/
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const std::vector <ref <word> > getWordList();
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/** Return the text converted into the specified charset.
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* The encoded-words are decoded and then converted in the
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* specified destination charset.
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*
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* @param dest output charset
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* @return text decoded in the specified charset
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*/
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const string getConvertedText(const charset& dest) const;
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/** Return the unconverted (raw) data of all words. This is the
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* concatenation of the results returned by getBuffer() on
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* the contained words.
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*
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* @return raw data
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*/
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const string getWholeBuffer() const;
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/** This function can be used to make several encoded words from a text.
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* All the characters in the text must be in the same specified charset.
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*
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* <p>Eg: giving:</p>
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* <pre> <iso-8859-1> "Linux dans un t'el'ephone mobile"
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* ("=?iso-8859-1?Q?Linux_dans_un_t=E9l=E9phone_mobile?=")
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* </pre><p>it will return:</p>
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* <pre> <us-ascii> "Linux dans un "
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* <iso-8859-1> "t'el'ephone "
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* <us-ascii> "mobile"
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* ("Linux dans un =?iso-8859-1?Q?t=E9l=E9phone_?= mobile")
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* </pre>
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*
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* @param in input string
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* @param ch input charset
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* @return new text object
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*/
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static ref <text> newFromString(const string& in, const charset& ch);
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/** This function can be used to make several encoded words from a text.
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* All the characters in the text must be in the same specified charset.
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*
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* <p>Eg: giving:</p>
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* <pre> <iso-8859-1> "Linux dans un t'el'ephone mobile"
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* ("=?iso-8859-1?Q?Linux_dans_un_t=E9l=E9phone_mobile?=")
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* </pre><p>it will return:</p>
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* <pre> <us-ascii> "Linux dans un "
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* <iso-8859-1> "t'el'ephone "
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* <us-ascii> "mobile"
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* ("Linux dans un =?iso-8859-1?Q?t=E9l=E9phone_?= mobile")
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* </pre>
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*
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* @param in input string
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* @param ch input charset
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*/
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void createFromString(const string& in, const charset& ch);
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/** Flags used by "encodeAndFold" function.
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*/
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enum EncodeAndFoldFlags
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{
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// NOTE: If both "FORCE_NO_ENCODING" and "FORCE_ENCODING" are
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// specified, "FORCE_NO_ENCODING" is used by default.
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FORCE_NO_ENCODING = (1 << 0), /**< Just fold lines, don't encode them. */
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FORCE_ENCODING = (1 << 1), /**< Encode lines even if they are plain ASCII text. */
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NO_NEW_LINE_SEQUENCE = (1 << 2), /**< Use CRLF instead of new-line sequence (CRLF + TAB). */
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QUOTE_IF_POSSIBLE = (1 << 3) /**< Use quoting instead of encoding when possible (even if FORCE_ENCODING is specified). */
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};
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/** Encode and fold text in respect to RFC-2047.
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*
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* @param os output stream
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* @param maxLineLength maximum line length for output
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* @param firstLineOffset the first line length (may be useful if the current output line is not empty)
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* @param lastLineLength will receive the length of the last line written
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* @param flags encoding flags (see EncodeAndFoldFlags)
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*/
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void encodeAndFold(utility::outputStream& os, const string::size_type maxLineLength,
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const string::size_type firstLineOffset, string::size_type* lastLineLength, const int flags) const;
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/** Decode and unfold text (RFC-2047).
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*
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* @param in input string
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* @return new text object
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*/
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static ref <text> decodeAndUnfold(const string& in);
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/** Decode and unfold text (RFC-2047).
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*
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* @param in input string
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* @param generateInExisting if not NULL, the resulting text will be generated
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* in the specified object instead of a new created object (in this case, the
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* function returns the same pointer). Can be used to avoid copying the
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* resulting object into an existing object.
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* @return new text object or existing object if generateInExisting != NULL
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*/
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static text* decodeAndUnfold(const string& in, text* generateInExisting);
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protected:
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// Component parsing & assembling
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void parseImpl
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(const string& buffer,
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const string::size_type position,
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const string::size_type end,
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string::size_type* newPosition = NULL);
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void generateImpl
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(utility::outputStream& os,
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const string::size_type maxLineLength = lineLengthLimits::infinite,
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const string::size_type curLinePos = 0,
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string::size_type* newLinePos = NULL) const;
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private:
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std::vector <ref <word> > m_words;
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};
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} // vmime
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#endif // VMIME_TEXT_HPP_INCLUDED
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