#define ENCODING_H
#include "support/docstring.h"
+#include "support/types.h"
#include <map>
#include <set>
class LaTeXFeatures;
+class EncodingException : public std::exception {
+public:
+ EncodingException(char_type c);
+ virtual ~EncodingException() throw() {}
+ virtual const char * what() const throw();
+
+ char_type failed_char;
+ int par_id;
+ pos_type pos;
+};
+
///
class Encoding {
public:
+ /// Which LaTeX package handles this encoding?
+ enum Package {
+ none,
+ inputenc,
+ CJK
+ };
///
Encoding() {}
///
Encoding(std::string const & n, std::string const & l,
- std::string const & i);
+ std::string const & i, bool f, Package p);
+ ///
+ void init() const;
///
std::string const & name() const { return Name_; }
///
* character is returned.
*/
docstring const latexChar(char_type c) const;
+ /// Which LaTeX package handles this encoding?
+ Package package() const { return package_; }
+ /// A list of all characters usable in this encoding
+ std::set<char_type> getSymbolsList();
private:
///
std::string Name_;
std::string LatexName_;
///
std::string iconvName_;
+ /// Is this a fixed width encoding?
+ bool fixedwidth_;
///
typedef std::set<char_type> CharSet;
/// Set of UCS4 characters that we can encode (for singlebyte
/// encodings only)
- CharSet encodable_;
+ mutable CharSet encodable_;
/// All code points below this are encodable. This helps us to avoid
/// lokup of ASCII characters in encodable_ and gives about 1 sec
/// speedup on export of the Userguide.
- char_type start_encodable_;
+ mutable char_type start_encodable_;
+ /// Which LaTeX package handles this encoding?
+ Package package_;
+ /**
+ * If this is true the stored information about the encoding covers
+ * all encodable characters. We set this to false initially so that
+ * we only need to query iconv for the actually used encodings.
+ * This is needed especially for the multibyte encodings, if we
+ * complete all encoding info on startup it takes 2-3 minutes.
+ */
+ mutable bool complete_;
};
class Encodings {
/// \param encfile encodings definition file
/// \param symbolsfile unicode->LaTeX mapping file
void read(support::FileName const & encfile,
- support::FileName const & symbolsfile);
+ support::FileName const & symbolsfile);
/// Get encoding from LyX name \p name
Encoding const * getFromLyXName(std::string const & name) const;
/// Get encoding from LaTeX name \p name
static char_type transformChar(char_type c, Letter_Form form);
/// Is this a combining char?
static bool isCombiningChar(char_type c);
+ /**
+ * Is this a known char from some language?
+ * If \p preamble is empty and code point \p c is known to belong
+ * to a supported script, true is returned and \p preamble is set
+ * to the corresponding entry in the unicodesymbols file.
+ * If \p preamble is not empty, a check is made whether code point
+ * \p c is a known character matching the preamble entry.
+ */
+ static bool isKnownScriptChar(char_type const c, std::string & preamble);
/**
* Add the preamble snippet needed for the output of \p c to
* \p features.