Allow literate documents other than noweb to work out of the box. Currently

only sweave is supported (for building documentation, not programs).

Layout files allow a new OutputFormat tag 

Modules can be conditionned on a feature of the type from->to, indicating that
it should be possible to convert from format 'from' to format 'to'.

Layout format incremented to 15.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@29874 a592a061-630c-0410-9148-cb99ea01b6c8

lib/layouts/noweb.module

@@ -1,4 +1,4 @@
-#\DeclareLyXModule[noweb.sty]{Noweb literate programming}
+#\DeclareLyXModule[literate->latex,noweb.sty]{Noweb literate programming}
 #DescriptionBegin
 #Allows to use Noweb as a literate programming tool.
 #DescriptionEnd

lib/layouts/sweave.module

@@ -1,4 +1,4 @@
-#\DeclareLyXModule[Sweave.sty]{Sweave - S/R literate programming}
+#\DeclareLyXModule[sweave->latex]{Sweave - S/R literate programming}
 #DescriptionBegin
 #Allows to use the statistical language S/R as a literate programming tool - Sweave.
 #DescriptionEnd
@@ -11,7 +11,7 @@
 
 Format 11
 OutputType              literate
-#OutputFormat           sweave
+OutputFormat           sweave
 
 Style Chunk
 	Category              Sweave

lib/scripts/layout2layout.py

@@ -48,10 +48,14 @@ import os, re, string, sys
 # Incremented to format 14, 14 February 2009 by gb
 # Rename I18NPreamble to BabelPreamble and add LangPreamble
 
+# Incremented to format 15, 28 May 2009 by lasgouttes
+# Add new tag OutputFormat; modules can be conditionned on feature 
+# "from->to".
+
 # Do not forget to document format change in Customization
 # Manual (section "Declaring a new text class").
 
-currentFormat = 14
+currentFormat = 15
 
 
 def usage(prog_name):
@@ -227,6 +231,11 @@ def convert(lines):
                 i += 1
             continue
 
+        # This just involved new features, not any changes to old ones
+        if format == 14:
+          i += 1
+          continue
+
         # Rename I18NPreamble to BabelPreamble
         if format == 13:
             match = re_I18nPreamble.match(lines[i])

src/Buffer.cpp

@@ -459,10 +459,12 @@ string Buffer::logName(LogType * type) const
 	FileName const fname(addName(temppath(),
 				     onlyFilename(changeExtension(filename,
 								  ".log"))));
+
+	// FIXME: how do we know this is the name of the build log?
 	FileName const bname(
 		addName(path, onlyFilename(
 			changeExtension(filename,
-					formats.extension("literate") + ".out"))));
+					formats.extension(bufferFormat()) + ".out"))));
 
 	// If no Latex log or Build log is newer, show Build log
 
@@ -2662,15 +2664,14 @@ void Buffer::autoSave() const
 
 string Buffer::bufferFormat() const
 {
-	if (isDocBook())
-		return "docbook";
-	if (isLiterate())
-		return "literate";
-	if (params().useXetex)
-		return "xetex";
-	if (params().encoding().package() == Encoding::japanese)
-		return "platex";
-	return "latex";
+	string format = params().documentClass().outputFormat();
+	if (format == "latex") {
+		if (params().useXetex)
+			return "xetex";
+		if (params().encoding().package() == Encoding::japanese)
+			return "platex";
+	}
+	return format;
 }
 
 

src/LaTeXFeatures.cpp

@@ -19,6 +19,7 @@
 #include "Buffer.h"
 #include "BufferParams.h"
 #include "ColorSet.h"
+#include "Converter.h"
 #include "Encoding.h"
 #include "Floating.h"
 #include "FloatList.h"
@@ -370,6 +371,14 @@ bool LaTeXFeatures::mustProvide(string const & name) const
 
 bool LaTeXFeatures::isAvailable(string const & name)
 {
+	string::size_type const i = name.find("->");
+	if (i != string::npos) {
+		string const from = name.substr(0,i);
+		string const to = name.substr(i+2);
+		LYXERR0("from=[" << from << "] to=[" << to << "]");
+		return theConverters().isReachable(from, to);
+	}
+
 	if (packages_.empty())
 		getAvailable();
 	string n = name;

src/TextClass.cpp

@@ -62,7 +62,7 @@ private:
 };
 
 // Keep the changes documented in the Customization manual. 
-int const FORMAT = 14;
+int const FORMAT = 15;
 
 
 bool layout2layout(FileName const & filename, FileName const & tempfile)
@@ -127,6 +127,7 @@ InsetLayout DocumentClass::plain_insetlayout_;
 TextClass::TextClass()
 {
 	outputType_ = LATEX;
+	outputFormat_ = "latex";
 	columns_ = 1;
 	sides_ = OneSide;
 	secnumdepth_ = 3;
@@ -160,6 +161,7 @@ bool TextClass::readStyle(Lexer & lexrc, Layout & lay) const
 
 enum TextClassTags {
 	TC_OUTPUTTYPE = 1,
+	TC_OUTPUTFORMAT,
 	TC_INPUT,
 	TC_STYLE,
 	TC_DEFAULTSTYLE,
@@ -208,6 +210,7 @@ namespace {
 		{ "leftmargin",      TC_LEFTMARGIN },
 		{ "nofloat",         TC_NOFLOAT },
 		{ "nostyle",         TC_NOSTYLE },
+		{ "outputformat",    TC_OUTPUTFORMAT },
 		{ "outputtype",      TC_OUTPUTTYPE },
 		{ "pagestyle",       TC_PAGESTYLE },
 		{ "preamble",        TC_PREAMBLE },
@@ -352,8 +355,24 @@ TextClass::ReturnValues TextClass::read(Lexer & lexrc, ReadType rt)
 				format = lexrc.getInteger();
 			break;
 
-		case TC_OUTPUTTYPE:   // output type definition
+		case TC_OUTPUTFORMAT:
+			if (lexrc.next())
+				outputFormat_ = lexrc.getString();
+			break;
+
+		case TC_OUTPUTTYPE:
 			readOutputType(lexrc);
+			switch(outputType_) {
+			case LATEX:
+				outputFormat_ = "latex";
+				break;
+			case DOCBOOK:
+				outputFormat_ = "docbook";
+				break;
+			case LITERATE:
+				outputFormat_ = "literate";
+				break;
+			}
 			break;
 
 		case TC_INPUT: // Include file

src/TextClass.h

@@ -191,6 +191,8 @@ public:
 	std::string const & latexname() const { return latexname_; }
 	/// Can be LaTeX, DocBook, etc.
 	OutputType outputType() const { return outputType_; }
+	/// Can be latex, docbook ... (the name of a format)
+	std::string outputFormat() const { return outputFormat_; }
 protected:
 	/// Protect construction
 	TextClass();
@@ -272,6 +274,8 @@ protected:
 	int tocdepth_;
 	/// Can be LaTeX, DocBook, etc.
 	OutputType outputType_;
+	/// Can be latex, docbook ... (the name of a format)
+	std::string outputFormat_;
 	/** Base font. The paragraph and layout fonts are resolved against
 	    this font. This has to be fully instantiated. Attributes
 	    FONT_INHERIT, FONT_IGNORE, and FONT_TOGGLE are
@@ -406,8 +410,6 @@ public:
 	int max_toclevel() const { return max_toclevel_; }
 	/// returns true if the class has a ToC structure
 	bool hasTocLevels() const;
-	/// Can be LaTeX, DocBook, etc.
-	OutputType outputType() const { return outputType_; }
 protected:
 	/// Constructs a DocumentClass based upon a LayoutFile.
 	DocumentClass(LayoutFile const & tc);

src/frontends/qt4/GuiLog.cpp

@@ -150,6 +150,7 @@ bool GuiLog::initialiseParams(string const & data)
 
 	if (logtype == "latex")
 		type_ = LatexLog;
+	// FIXME: not sure "literate" still works.
 	else if (logtype == "literate")
 		type_ = LiterateLog;
 	else if (logtype == "lyx2lyx")