1 files changed, 106 insertions, 0 deletions
diff --git a/lurker/common/CharsetEscape.h b/lurker/common/CharsetEscape.h
new file mode 100644
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+++ b/lurker/common/CharsetEscape.h
@@ -0,0 +1,106 @@
+/*  $Rev$
+ *  
+ *  CharsetEscape.h - A stream manipulator-like thing for charset conversion
+ *  
+ *  Copyright (C) 2002 - Wesley W. Terpstra
+ *  
+ *  License: GPL
+ *  
+ *  Authors: 'Wesley W. Terpstra' <wesley@terpstra.ca>
+ *  
+ *    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; version 2.1.
+ *    
+ *    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef CHARSET_ESCAPE_H
+#define CHARSET_ESCAPE_H
+
+#include <iostream>
+#include <string>
+
+#include <iconv.h>
+#include <cstring>
+
+using std::ostream;
+using std::string;
+
+/** Escape a charset into utf-8
+ */
+class CharsetEscape
+{
+ protected:
+ 	iconv_t	ic;
+ 	
+ public:
+ 	// If the charset is invalid, iso-8859-1 is used instead
+ 	CharsetEscape(const char* charset);
+ 	~CharsetEscape();
+ 	
+ 	bool valid() const { return ic != (iconv_t)-1; }
+ 	
+ 	void write(ostream& o, const char* s, size_t amt);
+ 	string write(const char* s, size_t amt);
+ 	
+ 	void write(ostream& o, const string& s)
+ 	{
+ 		write(o, s.c_str(), s.length());
+ 	}
+ 	string write(const string& s)
+ 	{
+ 		return write(s.c_str(), s.length());
+ 	}
+ 	
+ 	void write(ostream& o, const char* s)
+ 	{
+ 		write(o, s, strlen(s));
+ 	}
+ 	string write(const char* s)
+ 	{
+ 		return write(s, strlen(s));
+ 	}
+ 	
+ 	void write(ostream& o, char c)
+ 	{
+ 		write(o, &c, 1);
+ 	}
+ 	string write(char c)
+ 	{
+ 		return write(&c, 1);
+ 	}
+};
+
+class CharsetOstream
+{
+ protected:
+ 	ostream&	o;
+ 	CharsetEscape&	e;
+ 
+ public:
+ 	CharsetOstream(ostream& o_, CharsetEscape& e_) : o(o_), e(e_) { }
+ 	
+ 	ostream& operator << (const string& s) { e.write(o, s); return o; }
+ 	ostream& operator << (const char* s)   { e.write(o, s); return o; }
+ 	ostream& operator << (char c)          { e.write(o, c); return o; }
+};
+
+inline CharsetOstream operator << (ostream& o, CharsetEscape& e)
+{
+	return CharsetOstream(o, e);
+}
+
+// Transform any =?charset?encoding?str?= stuff in the string to utf-8
+string decode_header(
+	const string&	str,
+	const char*	default_coding);
+
+#endif