X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fdocstream.h;h=e2f56f91c889b309a1b9c1e8b6d8d71cb0fce997;hb=dae8555234f0e5c8358b91c307d91b219c664617;hp=f5245ec52175e7b05c151a348414baa54273b010;hpb=fa1856440c9b323c4f1b5a9034264357c7087bb4;p=lyx.git

diff --git a/src/support/docstream.h b/src/support/docstream.h
index f5245ec521..e2f56f91c8 100644
--- a/src/support/docstream.h
+++ b/src/support/docstream.h
@@ -12,8 +12,16 @@
 #ifndef LYX_DOCSTREAM_H
 #define LYX_DOCSTREAM_H
 
+#include "TexRow.h"
 #include "support/docstring.h"
 
+#if defined(_MSC_VER) && (_MSC_VER >= 1600) 
+// Ugly workaround for MSVC10 STL bug:
+// std::numpunct has a hardcoded dllimport in definition, but we wanna it with 32 bit 
+// so we can't import it and must define it but then the compiler complains.
+#include "support/numpunct_lyx_char_type.h"
+#endif
+
 #include <fstream>
 #include <sstream>
 
@@ -34,47 +42,153 @@ typedef std::basic_istream<char_type> idocstream;
     \endcode, not \code
     os << c;
     \endcode . The latter will not output the character, but the code point
-    as number. This is because we can't overload operator<< (our character
-    type is not a real type but a typedef). Narrow characters of type char
-    can be output as usual.
+    as number if USE_WCHAR_T is not defined. This is because we can't overload
+    operator<< (our character type is not always a real type but sometimes a
+    typedef). Narrow characters of type char can be output as usual.
  */
 typedef std::basic_ostream<char_type> odocstream;
 
 /// File stream for reading UTF8-encoded files with automatic conversion to
 /// UCS4.
-class idocfstream : public std::basic_ifstream<char_type> {
+class ifdocstream : public std::basic_ifstream<char_type> {
 	typedef std::basic_ifstream<char_type> base;
 public:
-	idocfstream();
-	explicit idocfstream(const char* s,
-		std::ios_base::openmode mode = std::ios_base::in);
-	~idocfstream() {}
+	ifdocstream();
+	explicit ifdocstream(const char* s,
+		std::ios_base::openmode mode = std::ios_base::in,
+		std::string const & encoding = "UTF-8");
+	~ifdocstream() {}
 };
 
 /// File stream for writing files in 8bit encoding \p encoding with automatic
 /// conversion from UCS4.
-class odocfstream : public std::basic_ofstream<char_type> {
+
+class ofdocstream : public std::basic_ofstream<char_type> {
 	typedef std::basic_ofstream<char_type> base;
 public:
-	odocfstream(std::string const & encoding = "UTF-8");
-	explicit odocfstream(const char* s,
+	ofdocstream();
+	explicit ofdocstream(const char* s,
 		std::ios_base::openmode mode = std::ios_base::out|std::ios_base::trunc,
 		std::string const & encoding = "UTF-8");
-	~odocfstream() {}
+	~ofdocstream() {}
+	///
+	void reset(std::string const & encoding);
 };
 
+
+
 /// UCS4 input stringstream
 typedef std::basic_istringstream<char_type> idocstringstream;
 
-/// UCS4 output stringstream
-typedef std::basic_ostringstream<char_type> odocstringstream;
+/// UCS4 output manipulator
+typedef odocstream & (*odocstream_manip)(odocstream &);
 
-inline
-odocstream & operator<<(odocstream & os, char c)
-{
-    os.put(c);
-    return os;
-}
+/** Wrapper class for odocstream.
+    This class is used to automatically count the lines of the exported latex
+    code and also to ensure that no blank lines may be inadvertently output.
+    To this end, use the special variables "breakln" and "safebreakln" as if
+    they were iomanip's to ensure that the next output will start at the
+    beginning of a line. Using "breakln", a '\n' char will be output if needed,
+    while using "safebreakln", "%\n" will be output if needed.
+    The class also records the last output character and can tell whether
+    a paragraph break was just output.
+  */
+
+class otexstream {
+public:
+	///
+	otexstream(odocstream & os, TexRow & texrow)
+		: os_(os), texrow_(texrow), canbreakline_(false),
+		  protectspace_(false), parbreak_(true), lastchar_(0) {}
+	///
+	odocstream & os() { return os_; }
+	///
+	TexRow & texrow() { return texrow_; }
+	///
+	void put(char_type const & c);
+	///
+	void canBreakLine(bool breakline) { canbreakline_ = breakline; }
+	///
+	bool canBreakLine() const { return canbreakline_; }
+	///
+	void protectSpace(bool protectspace) { protectspace_ = protectspace; }
+	///
+	bool protectSpace() const { return protectspace_; }
+	///
+	void lastChar(char_type const & c)
+	{
+		parbreak_ = (!canbreakline_ && c == '\n');
+		canbreakline_ = (c != '\n');
+		lastchar_ = c;
+	}
+	///
+	char_type lastChar() const { return lastchar_; }
+	///
+	bool afterParbreak() const { return parbreak_; }
+private:
+	///
+	odocstream & os_;
+	///
+	TexRow & texrow_;
+	///
+	bool canbreakline_;
+	///
+	bool protectspace_;
+	///
+	bool parbreak_;
+	///
+	char_type lastchar_;
+};
+
+/// Helper structs for breaking a line
+struct BreakLine {
+	char n;
+};
+
+struct SafeBreakLine {
+	char n;
+};
+
+extern BreakLine breakln;
+extern SafeBreakLine safebreakln;
+
+///
+otexstream & operator<<(otexstream &, BreakLine);
+///
+otexstream & operator<<(otexstream &, SafeBreakLine);
+///
+otexstream & operator<<(otexstream &, odocstream_manip);
+///
+otexstream & operator<<(otexstream &, docstring const &);
+///
+otexstream & operator<<(otexstream &, std::string const &);
+///
+otexstream & operator<<(otexstream &, char const *);
+///
+otexstream & operator<<(otexstream &, char);
+///
+template <typename Type>
+otexstream & operator<<(otexstream & ots, Type value);
+
+/// 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);
+idocstream & operator<<(idocstream & os, SetEnc e);
 
 }