remove lyxrc dependence from support/*

[lyx.git] / src / support / unicode.h

diff --git a/src/support/unicode.h b/src/support/unicode.h
index 7f99f528320c5cedf2627faca5c16980b6ff35e8..12f112c44d60c97cf9a73e0a2411253e2d3206a3 100644 (file)
--- a/src/support/unicode.h
+++ b/src/support/unicode.h
@@ -15,59 +15,89 @@
 
 #include "support/types.h"
 
+#include <boost/scoped_ptr.hpp>
+
+#include <string>
 #include <vector>
 
 
 namespace lyx {
 
-// utf8_to_ucs4
+class IconvProcessor
+{
+public:
+       IconvProcessor(
+               char const * tocode = "",
+               char const * fromcode = "");
+       /// copy constructor needed because of pimpl_
+       IconvProcessor(IconvProcessor const &);
+       /// assignment operator needed because of pimpl_
+       IconvProcessor & operator=(IconvProcessor const &);
+       /// destructor (needs to be implemented in the .C file because the
+       /// boost::scoped_ptr destructor needs a fully defined type
+       ~IconvProcessor();
+
+       /// convert any data from \c fromcode to \c tocode unicode format.
+       /// \return the number of bytes of the converted output buffer.
+       int convert(
+               char const * in_buffer,
+               size_t in_size,
+               char * out_buffer,
+               size_t max_out_size);
+private:
+       /// open iconv.
+       /// \return true if the processor is ready to use.
+       bool init();
+
+       std::string tocode_;
+       std::string fromcode_;
+
+       struct Private;
+       boost::scoped_ptr<Private> pimpl_;
+};
 
 // A single codepoint conversion for utf8_to_ucs4 does not make
 // sense, so that function is left out.
 
-std::vector<lyx::char_type> utf8_to_ucs4(std::vector<char> const & utf8str);
-
-std::vector<lyx::char_type> utf8_to_ucs4(char const * utf8str, size_t ls);
-
-// ucs2_to_ucs4
-
-lyx::char_type ucs2_to_ucs4(unsigned short c);
+std::vector<char_type> utf8_to_ucs4(std::vector<char> const & utf8str);
 
-std::vector<lyx::char_type>
-ucs2_to_ucs4(std::vector<unsigned short> const & ucs2str);
+std::vector<char_type> utf8_to_ucs4(char const * utf8str, size_t ls);
 
-std::vector<lyx::char_type>
-ucs2_to_ucs4(unsigned short const * ucs2str, size_t ls);
+// utf16_to_ucs4
 
-// ucs4_to_ucs2
+std::vector<char_type> utf16_to_ucs4(unsigned short const * s, size_t ls);
 
-unsigned short ucs4_to_ucs2(lyx::char_type c);
+// ucs4_to_utf16
 
-std::vector<unsigned short>
-ucs4_to_ucs2(std::vector<lyx::char_type> const & ucs4str);
-
-std::vector<unsigned short> ucs4_to_ucs2(lyx::char_type const * s, size_t ls);
+std::vector<unsigned short> ucs4_to_utf16(char_type const * s, size_t ls);
 
 // ucs4_to_utf8
 
-std::vector<char> ucs4_to_utf8(lyx::char_type c);
+std::vector<char> ucs4_to_utf8(char_type c);
 
-std::vector<char> ucs4_to_utf8(std::vector<lyx::char_type> const & ucs4str);
+std::vector<char> ucs4_to_utf8(std::vector<char_type> const & ucs4str);
 
-std::vector<char> ucs4_to_utf8(lyx::char_type const * ucs4str, size_t ls);
+std::vector<char> ucs4_to_utf8(char_type const * ucs4str, size_t ls);
 
 /// convert \p s from encoding \p encoding to ucs4.
 /// \p encoding must be a valid iconv 8bit encoding
-std::vector<lyx::char_type>
+std::vector<char_type>
 eightbit_to_ucs4(char const * s, size_t ls, std::string const & encoding);
 
 /// convert \p s from ucs4 to encoding \p encoding.
 /// \p encoding must be a valid iconv 8bit encoding
 std::vector<char>
-ucs4_to_eightbit(lyx::char_type const * ucs4str, size_t ls, std::string const & encoding);
+ucs4_to_eightbit(char_type const * ucs4str, size_t ls, std::string const & encoding);
+
+/// convert ucs4 character \p c to encoding \p encoding.
+/// \p encoding must be a valid iconv 8bit encoding
+char ucs4_to_eightbit(char_type c, std::string const & encoding);
+
+///
+void ucs4_to_multibytes(char_type ucs4, std::vector<char> & out,
+       std::string const & encoding);
 
 extern char const * ucs4_codeset;
-extern char const * ucs2_codeset;
 
 
 } // namespace lyx