From e2da5d1771c564b178837cefea696240a344bce8 Mon Sep 17 00:00:00 2001
From: Abdelrazak Younes <younes@lyx.org>
Date: Mon, 14 May 2007 09:34:53 +0000
Subject: [PATCH] Improve Farsi support by Mostafa Vahedi. Arabic support now
 depends on 'ArabTeX' and Farsi support depends on the 'Arabi' package.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18305 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/Font.cpp | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/src/Font.cpp b/src/Font.cpp
index ccaa923cab..697471a75a 100644
--- a/src/Font.cpp
+++ b/src/Font.cpp
@@ -749,7 +749,14 @@ int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 	int count = 0;
 	if (language()->babel() != base.language()->babel() &&
 	    language() != prev.language()) {
-		if (isRightToLeft() != prev.isRightToLeft()) {
+		if (language()->lang() == "farsi") {
+			os << "\\textFR{";
+			count += 8;
+		} else if (!isRightToLeft() && 
+			    base.language()->lang() == "farsi") {
+			os << "\\textLR{";
+			count += 8;
+		} else if (isRightToLeft() != prev.isRightToLeft()) {
 			if (isRightToLeft()) {
 				os << "\\R{";
 				count += 3;
@@ -781,8 +788,12 @@ int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 	}
 
 	// When the current language is Hebrew, Arabic, or Farsi
-	// the numbers are written Left-to-Right.
-	if (number() == ON && prev.number() != ON && isRightToLeft()) {
+	// the numbers are written Left-to-Right. ArabTeX package 
+	// reorders the number automatically but the packages used
+	// for Hebrew and Farsi (Arabi) do not.
+	if (number() == ON && prev.number() != ON 
+		&& (language()->lang() == "hebrew" 
+			|| language()->lang() == "farsi")) {
 		os << "{\\beginL ";
 		count += 9;
 	}
@@ -910,8 +921,12 @@ int Font::latexWriteEndChanges(odocstream & os, BufferParams const & bparams,
 	}
 
 	// When the current language is Hebrew, Arabic, or Farsi
-	// the numbers are written Left-to-Right.
-	if (number() == ON && next.number() != ON && isRightToLeft()) {
+	// the numbers are written Left-to-Right. ArabTeX package 
+	// reorders the number automatically but the packages used
+	// for Hebrew and Farsi (Arabi) do not.
+	if (number() == ON && next.number() != ON 
+		&& (language()->lang() == "hebrew" 
+			|| language()->lang() == "farsi")) {
 		os << "\\endL}";
 		count += 6;
 	}
-- 
2.39.2