character set and registry

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2045 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/stylededit/CharacterSet.cpp

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+#include "CharacterSet.h"
+

src/apps/stylededit/CharacterSet.h

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+#ifndef CHARACTER_SET_H
+#define CHARACTER_SET_H
+
+/*! CharacterSet holds a variety of useful information about
+	each character set.  This information has been derived from the
+	IANA standards organization.  Since IANA provides several names
+	for some encodings, this object also provides for aliases.
+	
+	@see http://www.iana.org/assignments/character-sets
+	*/
+
+class CharacterSet {
+public:
+	CharacterSet();
+	
+	//! returns an id suitable for use in BFont::SetEncoding
+	uint32 GetFontID() { return id + 1; }
+	
+	//! returns an id suitable for use in convert_to_utf8/convert_from_utf8
+	uint32 GetConversionID() { return id; }
+	
+	//! returns an id for use in MIBs to identify coded character sets
+	uint32 GetMIBenum() { return MIBenum; }
+	
+	//! returns the standard IANA name for this character set
+	const char * GetName() { return iana_name; }
+	
+	//! returns a user interface friendly name for this character set
+	const char * GetPrintName() { return print_name; }
+	
+	//! returns the preferred MIME name for this character set
+	//! or null if none exists
+	const char * GetMIMEName() { return mime_name; }
+	
+	//! returns an array of aliases for this character set
+	//! or null if none exist
+	const char ** GetAliases(int32 & out_size) { 
+	  out_size = aliases_count;
+	  return aliases;
+	}
+	
+private:
+	uint32	id;				//! id from convert_to_utf8/convert_from_utf8
+	uint32	MIBenum;		//! for use in MIBs to identify coded character sets
+	char	print_name[64]; //! user interface friendly name
+	char	iana_name[64];	//! standard IANA name
+	char	*mime_name;		//! the preferred mime name
+	char	**aliases;		//! aliases for this character set
+	uint32	aliases_count;	//! how many aliases are available
+	uint32	padding[16];
+};
+
+/*! the CharacterSetRoster is used to obtain a CharacterSet object
+    for a given encoding.    
+    */
+
+class CharacterSetRoster {
+public:
+	const CharacterSet * FindCharacterSetByFontID(uint32 id);
+	const CharacterSet * FindCharacterSetByConversionID(uint32 id);
+	const CharacterSet * FindCharacterSetByMIBenum(uint32 MIBenum);
+	const CharacterSet * FindCharacterSetByName(char * name);
+private:
+	CharacterSet * character_sets;
+};
+
+#endif CHARACTER_SET_H