gecko-dev/mailnews/base/util/nsMsgI18N.h

216 lines
7.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
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*
* Software distributed under the License is distributed on an "AS IS" basis,
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* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* ***** END LICENSE BLOCK ***** */
#ifndef _nsMsgI18N_H_
#define _nsMsgI18N_H_
#include "nscore.h"
#include "msgCore.h"
class nsFileSpec;
#ifndef kMAX_CSNAME
#define kMAX_CSNAME 64
#endif
/**
* Encode an input string into RFC 2047 form.
*
* @param header [IN] A header to encode.
* @param structured [IN] Specify the header is structured or non-structured field (See RFC-822).
* @param charset [IN] Charset name to convert.
* @param fieldnamelen [IN] Header field name length. (e.g. "From: " -> 6)
* @param usemime [IN] If false then apply charset conversion only no MIME encoding.
* @return Encoded buffer (in C string) or NULL in case of error.
*/
NS_MSG_BASE char *nsMsgI18NEncodeMimePartIIStr(const char *header, PRBool structured, const char *charset, PRInt32 fieldnamelen, PRBool usemime);
/**
* Check if given charset is stateful (e.g. ISO-2022-JP).
*
* @param charset [IN] Charset name.
* @return True if stateful
*/
NS_MSG_BASE PRBool nsMsgI18Nstateful_charset(const char *charset);
/**
* Check if given charset is multibye (e.g. Shift_JIS, Big5).
*
* @param charset [IN] Charset name.
* @return True if multibyte
*/
NS_MSG_BASE PRBool nsMsgI18Nmultibyte_charset(const char *charset);
/**
* Check the input string contains 7 bit data only.
*
* @param charset [IN] Charset name of the input string.
* @param string [IN] Input string to be examined.
* @param size [IN] Size of the input string.
* @return True if 7 bit only.
*/
NS_MSG_BASE PRBool nsMsgI18N7bit_data_part(const char *charset, const char *string, const PRUint32 size);
/**
* Check the input (unicode) string is in a range of the given charset after the conversion.
* Note, do not use this for large string (e.g. message body) since this actually applies the conversion to the buffer.
*
* @param charset [IN] Charset to be converted.
* @param inString [IN] Input unicode string to be examined.
* @return True if the string can be converted within the charset range.
* False if one or more characters cannot be converted to the target charset.
*/
NS_MSG_BASE PRBool nsMsgI18Ncheck_data_in_charset_range(const char *charset, const PRUnichar* inString);
/**
* Return accept language.
*
* @return Accept language.
*/
NS_MSG_BASE char *nsMsgI18NGetAcceptLanguage(void);
/**
* Return charset name internally used in messsage compose.
*
* @return Charset name.
*/
NS_MSG_BASE const char *msgCompHeaderInternalCharset(void);
/**
* Return charset name of file system (OS dependent).
*
* @return File system charset name.
*/
NS_MSG_BASE const char * nsMsgI18NFileSystemCharset(void);
/**
* Convert from unicode to target charset.
*
* @param charset [IN] Charset name.
* @param inString [IN] Unicode string to convert.
* @param outString [OUT] Converted output string.
* @return nsresult.
*/
NS_MSG_BASE nsresult nsMsgI18NConvertFromUnicode(const nsCString& aCharset,
const nsString& inString,
nsCString& outString);
/**
* Convert from charset to unicode.
*
* @param charset [IN] Charset name.
* @param inString [IN] Input string to convert.
* @param outString [OUT] Output unicode string.
* @return nsresult.
*/
NS_MSG_BASE nsresult nsMsgI18NConvertToUnicode(const nsCString& aCharset,
const nsCString& inString,
nsString& outString);
/**
* Convert from unicode to target charset.
*
* @param charset [IN] Charset name.
* @param inString [IN] Unicode string to convert.
* @param outCString [OUT] Output C string, need PR_FREE.
* @return nsresult.
*/
NS_MSG_BASE nsresult ConvertFromUnicode(const char* aCharset,
const nsString& inString,
char** outCString);
/**
* Convert from charset to unicode.
*
* @param charset [IN] Charset name.
* @param inCString [IN] C string to convert.
* @param outString [OUT] Output unicode string.
* @return nsresult.
*/
NS_MSG_BASE nsresult ConvertToUnicode(const char* aCharset,
const char* inCString,
nsString& outString);
/**
* Parse for META charset.
*
* @param fileSpec [IN] A filespec.
* @return A charset name or empty string if not found.
*/
NS_MSG_BASE const char *nsMsgI18NParseMetaCharset(nsFileSpec* fileSpec);
/**
* Convert input to HTML entities (e.g.  , á).
*
* @param inString [IN] Input string to convert.
* @param outString [OUT] Converted output string.
* @return nsresult.
*/
NS_MSG_BASE nsresult nsMsgI18NConvertToEntity(const nsString& inString, nsString* outString);
/**
* Convert from charset to unicode. Also does substitution for unconverted characters (e.g. entity, '?').
*
* @param contentType [IN] text/plain or text/html.
* @param charset [IN] Charset name to convert.
* @param inString [IN] Input unicode string to convert.
* @param outString [OUT] Allocated and converted output C string. Need PR_FREE.
* @return nsresult.
*/
NS_MSG_BASE nsresult nsMsgI18NSaveAsCharset(const char* contentType, const char* charset, const PRUnichar* inString, char** outString);
/**
* Convert from unicode to charset, generates NNTP XPAT search string.
* Migrated from mozilla classic,
* see "http://lxr.mozilla.org/classic/source/include/libi18n.h#2162" for detail.
*
* @param aCharset [IN] Charset name to convert.
* @param inString [IN] Input unicode string to convert.
* @param outString [OUT] Converted output, the pattern should be send to NNTP XPAT command
* for searching non-ASCII header.
* @return nsresult.
*/
NS_MSG_BASE nsresult nsMsgI18NFormatNNTPXPATInNonRFC1522Format(const nsCString& aCharset, const nsString& inString, nsCString& outString);
/**
* convert a path in the native filesystem charset
*/
NS_MSG_BASE
void
nsMsgGetNativePathString(const char *aPath, nsString& aResult);
#endif /* _nsMsgI18N_H_ */