From e4ddd93da4036ac608f1778e79452ac7070d3d28 Mon Sep 17 00:00:00 2001
From: Georg Baum <Georg.Baum@post.rwth-aachen.de>
Date: Fri, 3 Feb 2006 21:47:25 +0000
Subject: [PATCH] fix bug 2174

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@10807 a592a061-630c-0410-9148-cb99ea01b6c8
---
 lib/ChangeLog     |  6 ++++++
 lib/configure.m4  |  4 +++-
 src/ChangeLog     |  7 +++++++
 src/MenuBackend.C |  5 +++++
 src/exporter.C    | 18 +++++++++++++++---
 src/graph.C       |  2 --
 6 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/lib/ChangeLog b/lib/ChangeLog
index 4ce2a9baf2..94ca7e1b77 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,9 @@
+2006-02-02  Georg Baum  <Georg.Baum@post.rwth-aachen.de>
+
+	* configure.m4: add lyx13x format and converter
+	* configure.m4: remove viewer from lyx format to exclude it from the
+	View menu
+
 2006-01-26  Jürgen Spitzmüller  <j.spitzmueller@gmx.de>
 
 	* chkconfig.ltx: add missing tests for bibtopic and jurabib;
diff --git a/lib/configure.m4 b/lib/configure.m4
index 0068529700..1e8afd04f9 100644
--- a/lib/configure.m4
+++ b/lib/configure.m4
@@ -590,7 +590,8 @@ cat >$outfile <<EOF
 \\Format jpg        jpg     JPEG                   "" "$RASTERIMAGE_VIEWER"	"$RASTERIMAGE_EDITOR"
 \\Format latex      tex     LaTeX                  L  ""	"$TEXT_EDITOR"
 \\Format linuxdoc   sgml    LinuxDoc               x  ""	"$TEXT_EDITOR"
-\\Format lyx        lyx     LyX                    "" "lyx"	"lyx"
+\\Format lyx        lyx     LyX                    "" ""	""
+\\Format lyx13x     lyx13  "LyX 1.3.x"             "" ""	""
 \\Format lyxpreview lyxpreview "LyX Preview"       "" ""	""
 \\Format literate   nw      NoWeb                  N  ""	"$TEXT_EDITOR"
 \\Format pbm        pbm     PBM                    "" "$RASTERIMAGE_VIEWER"	"$RASTERIMAGE_EDITOR"
@@ -636,6 +637,7 @@ cat >$outfile <<EOF
 \\converter linuxdoc   lyx        "$linuxdoc_to_lyx_command"	""
 \\converter literate   latex      "$literate_to_tex_command"	""
 \\converter literate   lyx        "$literate_to_lyx_command"	""
+\\converter lyx        lyx13x     "python \$\$s/lyx2lyx/lyx2lyx -t 221 \$\$i > \$\$o"	""
 \\converter lyxpreview png        "$lyxpreview_to_png_command"	""
 \\converter lyxpreview ppm        "$lyxpreview_to_bitmap_command"	""
 \\converter ps         fax        "$fax_command"	""
diff --git a/src/ChangeLog b/src/ChangeLog
index b069f4e5e8..8f5e741b9c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2006-02-02  Georg Baum  <Georg.Baum@post.rwth-aachen.de>
+
+	* exporter.C (Backends): Add "lyx" backend
+	* exporter.C (Export): Handle "lyx" backend
+	* graph.C (getReachable): Don't exclude "lyx"
+	* MenuBackend.C (expandFormats): exclude "lyx" from export menu
+
 2006-02-03  Martin Vermeer  <martin.vermeer@hut.fi>
 
 	* cursor.C (bruteFind2): convert relative to absolute co-ordinates
diff --git a/src/MenuBackend.C b/src/MenuBackend.C
index 89101d55e6..8ecdb4bad1 100644
--- a/src/MenuBackend.C
+++ b/src/MenuBackend.C
@@ -517,6 +517,11 @@ void expandFormats(MenuItem::Kind kind, Menu & tomenu, LyXView const * view)
 			else if ((*fit)->name() == "textparagraph")
 				label = _("Plain Text as Paragraphs");
 			label += "...";
+		} else if (kind == MenuItem::ExportFormats) {
+			// exporting to LyX does not make sense
+			// FIXME: Introduce noexport flag
+			if ((*fit)->name() == "lyx")
+				continue;
 		}
 		if (!(*fit)->shortcut().empty())
 			label += '|' + (*fit)->shortcut();
diff --git a/src/exporter.C b/src/exporter.C
index d79c49d4cd..57aca837ea 100644
--- a/src/exporter.C
+++ b/src/exporter.C
@@ -61,6 +61,7 @@ vector<string> const Backends(Buffer const & buffer)
 	if (buffer.params().getLyXTextClass().isTeXClassAvailable())
 		v.push_back(BufferFormat(buffer));
 	v.push_back("text");
+	v.push_back("lyx");
 	return v;
 }
 
@@ -143,11 +144,19 @@ bool Exporter::Export(Buffer * buffer, string const & format,
 	runparams.flavor = OutputParams::LATEX;
 	runparams.linelen = lyxrc.ascii_linelen;
 	vector<string> backends = Backends(*buffer);
-	if (find(backends.begin(), backends.end(), format) == backends.end()) {
+	// FIXME: Without this test export to lyx13 would be through
+	// latex -> lyx -> lyx13, because the first backend below with a
+	// working conversion path is used. We should replace this test and
+	// the explicit loop below with a method
+	// getShortestPath(vector<string> const & from, string const & to)
+	// which returns the shortest path from one of the formats in 'from'
+	// to 'to'.
+	if (format == "lyx13x" && !converters.getPath("lyx", format).empty())
+		backend_format = "lyx";
+	else if (find(backends.begin(), backends.end(), format) == backends.end()) {
 		for (vector<string>::const_iterator it = backends.begin();
 		     it != backends.end(); ++it) {
-			Graph::EdgePath p =
-				converters.getPath(*it,	format);
+			Graph::EdgePath p = converters.getPath(*it, format);
 			if (!p.empty()) {
 				runparams.flavor = converters.getFlavor(p);
 				backend_format = *it;
@@ -171,6 +180,9 @@ bool Exporter::Export(Buffer * buffer, string const & format,
 	// Ascii backend
 	if (backend_format == "text")
 		writeFileAscii(*buffer, filename, runparams);
+	// no backend
+	else if (backend_format == "lyx")
+		buffer->writeFile(filename);
 	// Linuxdoc backend
 	else if (buffer->isLinuxDoc()) {
 		runparams.nice = !put_in_tempdir;
diff --git a/src/graph.C b/src/graph.C
index 66daec8263..2b34bf0857 100644
--- a/src/graph.C
+++ b/src/graph.C
@@ -77,8 +77,6 @@ Graph::getReachable(int from, bool only_viewable,
 		int const i = Q_.front();
 		Q_.pop();
 		Format const & format = formats.get(i);
-		if (format.name() == "lyx")
-			continue;
 		if (!only_viewable || !format.viewer().empty() ||
 		    format.isChildFormat())
 			result.push_back(i);
-- 
2.39.5