X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fdocstream.h;h=e2f56f91c889b309a1b9c1e8b6d8d71cb0fce997;hb=dae8555234f0e5c8358b91c307d91b219c664617;hp=167bdd1e218a042dd2aa30a1f7bd4bab71d2d59b;hpb=1ef605f6254ef3f3b8cec5440a2e67e6f23a707b;p=lyx.git

diff --git a/src/support/docstream.h b/src/support/docstream.h
index 167bdd1e21..e2f56f91c8 100644
--- a/src/support/docstream.h
+++ b/src/support/docstream.h
@@ -12,6 +12,7 @@
 #ifndef LYX_DOCSTREAM_H
 #define LYX_DOCSTREAM_H
 
+#include "TexRow.h"
 #include "support/docstring.h"
 
 #if defined(_MSC_VER) && (_MSC_VER >= 1600) 
@@ -41,9 +42,9 @@ 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;
 
@@ -79,32 +80,32 @@ public:
 /// 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 &);
 
 /** Wrapper class for odocstream.
-    This class helps ensuring that no blank lines may be inadvertently output.
-    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.
-    Use countLines() to retrieve the number of \n output since previous call.
+    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:
 	///
-	explicit otexstream(odocstream & os)
-		: os_(os), lines_(0), canbreakline_(false), protectspace_(false)
-	{}
+	otexstream(odocstream & os, TexRow & texrow)
+		: os_(os), texrow_(texrow), canbreakline_(false),
+		  protectspace_(false), parbreak_(true), lastchar_(0) {}
 	///
 	odocstream & os() { return os_; }
 	///
-	void put(char_type const & c);
-	///
-	size_t countLines() { size_t l = lines_; lines_ = 0; return l; }
+	TexRow & texrow() { return texrow_; }
 	///
-	void addLines(size_t n) { lines_ += n; }
+	void put(char_type const & c);
 	///
 	void canBreakLine(bool breakline) { canbreakline_ = breakline; }
 	///
@@ -112,16 +113,31 @@ public:
 	///
 	void protectSpace(bool protectspace) { protectspace_ = protectspace; }
 	///
-	bool protectSpace() const { return 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_;
 	///
-	size_t lines_;
+	TexRow & texrow_;
 	///
 	bool canbreakline_;
 	///
 	bool protectspace_;
+	///
+	bool parbreak_;
+	///
+	char_type lastchar_;
 };
 
 /// Helper structs for breaking a line
@@ -141,17 +157,18 @@ 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);
 ///
-otexstream & operator<<(otexstream &, double);
-///
-otexstream & operator<<(otexstream &, int);
-///
-otexstream & operator<<(otexstream &, unsigned int);
+template <typename Type>
+otexstream & operator<<(otexstream & ots, Type value);
 
 /// Helper struct for changing stream encoding
 struct SetEnc {
@@ -171,7 +188,6 @@ SetEnc setEncoding(std::string const & encoding);
     \endcode
  */
 odocstream & operator<<(odocstream & os, SetEnc e);
-otexstream & operator<<(otexstream & os, SetEnc e);
 idocstream & operator<<(idocstream & os, SetEnc e);
 
 }