mirror of
https://github.com/rn10950/RetroZilla.git
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223 lines
9.0 KiB
C++
223 lines
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef _nsMsgI18N_H_
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#define _nsMsgI18N_H_
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#include "nscore.h"
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#include "msgCore.h"
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class nsFileSpec;
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#ifndef kMAX_CSNAME
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#define kMAX_CSNAME 64
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#endif
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/**
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* Encode an input string into RFC 2047 form.
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*
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* @param header [IN] A header to encode.
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* @param structured [IN] Specify the header is structured or non-structured field (See RFC-822).
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* @param charset [IN] Charset name to convert.
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* @param fieldnamelen [IN] Header field name length. (e.g. "From: " -> 6)
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* @param usemime [IN] If false then apply charset conversion only no MIME encoding.
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* @return Encoded buffer (in C string) or NULL in case of error.
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*/
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NS_MSG_BASE char *nsMsgI18NEncodeMimePartIIStr(const char *header, PRBool structured, const char *charset, PRInt32 fieldnamelen, PRBool usemime);
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/**
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* Check if given charset is stateful (e.g. ISO-2022-JP).
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*
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* @param charset [IN] Charset name.
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* @return True if stateful
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*/
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NS_MSG_BASE PRBool nsMsgI18Nstateful_charset(const char *charset);
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/**
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* Check if given charset is multibye (e.g. Shift_JIS, Big5).
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*
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* @param charset [IN] Charset name.
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* @return True if multibyte
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*/
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NS_MSG_BASE PRBool nsMsgI18Nmultibyte_charset(const char *charset);
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/**
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* Check the input (unicode) string is in a range of the given charset after the conversion.
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* Note, do not use this for large string (e.g. message body) since this actually applies the conversion to the buffer.
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*
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* @param charset [IN] Charset to be converted.
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* @param inString [IN] Input unicode string to be examined.
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* @param fallbackCharset [OUT]
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* null if fallback charset is not needed.
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* Otherwise, a fallback charset name may be set if that was used for the conversion.
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* Caller is responsible for freeing the memory (or use nsXPIDLCString).
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* @return True if the string can be converted within the charset range.
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* False if one or more characters cannot be converted to the target charset.
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*/
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NS_MSG_BASE PRBool nsMsgI18Ncheck_data_in_charset_range(const char *charset, const PRUnichar* inString,
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char **fallbackCharset=nsnull);
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/**
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* Return accept language.
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* Note, the return value is not valid after this method gets called again.
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*
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* @return Accept language.
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*/
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NS_MSG_BASE const char *nsMsgI18NGetAcceptLanguage(void);
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/**
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* Return charset name of file system (OS dependent).
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*
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* @return File system charset name.
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*/
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NS_MSG_BASE const char * nsMsgI18NFileSystemCharset(void);
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/**
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* Return charset name of text file (OS dependent).
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*
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* @param aCharset [OUT] Text file charset name.
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*/
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NS_MSG_BASE void nsMsgI18NTextFileCharset(nsACString& aCharset);
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/**
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* Convert from unicode to target charset.
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*
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* @param charset [IN] Charset name.
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* @param inString [IN] Unicode string to convert.
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* @param outString [OUT] Converted output string.
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* @return nsresult.
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*/
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NS_MSG_BASE nsresult nsMsgI18NConvertFromUnicode(const char* aCharset,
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const nsAFlatString& inString,
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nsACString& outString,
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PRBool aIsCharsetCanonical =
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PR_FALSE);
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/**
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* Convert from charset to unicode.
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*
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* @param charset [IN] Charset name.
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* @param inString [IN] Input string to convert.
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* @param outString [OUT] Output unicode string.
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* @return nsresult.
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*/
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NS_MSG_BASE nsresult nsMsgI18NConvertToUnicode(const char* aCharset,
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const nsAFlatCString& inString,
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nsAString& outString,
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PRBool aIsCharsetCanonical =
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PR_FALSE);
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/**
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* Parse for META charset.
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*
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* @param fileSpec [IN] A filespec.
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* @return A charset name or empty string if not found.
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*/
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NS_MSG_BASE const char *nsMsgI18NParseMetaCharset(nsFileSpec* fileSpec);
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/**
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* Convert input to HTML entities (e.g. , á).
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*
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* @param inString [IN] Input string to convert.
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* @param outString [OUT] Converted output string.
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* @return nsresult.
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*/
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NS_MSG_BASE nsresult nsMsgI18NConvertToEntity(const nsString& inString, nsString* outString);
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/**
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* Convert from charset to unicode. Also does substitution for unconverted characters (e.g. entity, '?').
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*
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* @param contentType [IN] text/plain or text/html.
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* @param charset [IN] Charset name to convert.
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* @param inString [IN] Input unicode string to convert.
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* @param outString [OUT] Allocated and converted output C string. Need PR_FREE.
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* @param fallbackCharset [OUT]
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* null if fallback charset is not needed.
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* Otherwise, a fallback charset name may be set if that was used for the conversion.
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* Caller is responsible for freeing the memory (or use nsXPIDLCString).
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* @param isAsciiOnly [OUT]
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* null if non ASCII info is not needed.
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* Otherwise, true is set if the input data is ASCII only false otherwise.
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* @return nsresult.
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*/
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NS_MSG_BASE nsresult nsMsgI18NSaveAsCharset(const char* contentType, const char* charset,
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const PRUnichar* inString, char** outString,
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char **fallbackCharset=nsnull, PRBool *isAsciiOnly=nsnull);
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/**
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* Convert from unicode to charset, generates NNTP XPAT search string.
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* Migrated from mozilla classic,
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* see "http://lxr.mozilla.org/classic/source/include/libi18n.h#2162" for detail.
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*
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* @param aCharset [IN] Charset name to convert.
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* @param inString [IN] Input unicode string to convert.
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* @param outString [OUT] Converted output, the pattern should be send to NNTP XPAT command
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* for searching non-ASCII header.
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* @return nsresult.
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*/
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NS_MSG_BASE nsresult nsMsgI18NFormatNNTPXPATInNonRFC1522Format(const nsCString& aCharset, const nsString& inString, nsCString& outString);
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// inline forwarders to avoid littering with 'x-imap4-.....'
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inline nsresult CopyUTF16toMUTF7(const nsAFlatString &aSrc, nsACString& aDest)
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{
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return nsMsgI18NConvertFromUnicode("x-imap4-modified-utf7", aSrc,
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aDest, PR_TRUE);
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}
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inline nsresult CopyMUTF7toUTF16(const nsAFlatCString& aSrc, nsAString& aDest)
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{
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return nsMsgI18NConvertToUnicode("x-imap4-modified-utf7", aSrc,
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aDest, PR_TRUE);
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}
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inline nsresult ConvertToUnicode(const char* charset,
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const nsAFlatCString &aSrc, nsAString& aDest)
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{
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return nsMsgI18NConvertToUnicode(charset, aSrc, aDest);
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}
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inline nsresult ConvertToUnicode(const char* charset,
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const char* aSrc, nsAString& aDest)
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{
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return nsMsgI18NConvertToUnicode(charset, nsDependentCString(aSrc), aDest);
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}
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inline nsresult ConvertFromUnicode(const char* charset,
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const nsAFlatString &aSrc, nsACString& aDest)
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{
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return nsMsgI18NConvertFromUnicode(charset, aSrc, aDest);
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}
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#endif /* _nsMsgI18N_H_ */
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