X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fdocstream.h;h=c3db04c58a3a2d2083c55160f6fccc01ee3bdaad;hb=e54ae72e5fac6f750c3f7972c74bb42b57f3a049;hp=c1f4f1ad8b056bbfcdd8930b36f77519021fd9d6;hpb=0d449056ef9ace3ef737e4b9aba8d3994615dc18;p=lyx.git

diff --git a/src/support/docstream.h b/src/support/docstream.h
index c1f4f1ad8b..c3db04c58a 100644
--- a/src/support/docstream.h
+++ b/src/support/docstream.h
@@ -19,6 +19,12 @@
 
 namespace lyx {
 
+class iconv_codecvt_facet_exception : public std::exception {
+public:
+	virtual ~iconv_codecvt_facet_exception() throw() {}
+	virtual const char * what() const throw();
+};
+
 /// Base class for UCS4 input streams
 typedef std::basic_istream<char_type> idocstream;
 
@@ -39,20 +45,22 @@ typedef std::basic_ostream<char_type> odocstream;
 class idocfstream : public std::basic_ifstream<char_type> {
 	typedef std::basic_ifstream<char_type> base;
 public:
-	idocfstream();
+	idocfstream(std::string const & encoding = "UTF-8");
 	explicit idocfstream(const char* s,
-		std::ios_base::openmode mode = std::ios_base::in);
+		std::ios_base::openmode mode = std::ios_base::in,
+		std::string const & encoding = "UTF-8");
 	~idocfstream() {}
 };
 
-/// File stream for writing UTF8-encoded files with automatic conversion from
-/// UCS4.
+/// File stream for writing files in 8bit encoding \p encoding with automatic
+/// conversion from UCS4.
 class odocfstream : public std::basic_ofstream<char_type> {
 	typedef std::basic_ofstream<char_type> base;
 public:
-	odocfstream();
+	odocfstream(std::string const & encoding = "UTF-8");
 	explicit odocfstream(const char* s,
-		std::ios_base::openmode mode = std::ios_base::out|std::ios_base::trunc);
+		std::ios_base::openmode mode = std::ios_base::out|std::ios_base::trunc,
+		std::string const & encoding = "UTF-8");
 	~odocfstream() {}
 };
 
@@ -69,6 +77,25 @@ odocstream & operator<<(odocstream & os, char c)
     return os;
 }
 
+/// Helper struct for changing stream encoding
+struct SetEnc {
+	SetEnc(std::string const & e) : encoding(e) {}
+	std::string encoding;
+};
+
+/// Helper function for changing stream encoding
+SetEnc setEncoding(std::string const & encoding);
+
+/** Change the encoding of \p os to \p e.encoding.
+    \p e.encoding must be a valid iconv name of an 8bit encoding.
+    This does nothing if the stream is not a file stream, since only
+    file streams do have an associated 8bit encoding.
+    Usage: \code
+    os << setEncoding("ISO-8859-1");
+    \endcode
+ */
+odocstream & operator<<(odocstream & os, SetEnc e);
+
 }
 
 #endif