From 9d298603496007ecf82dd068795adee5883dd8be Mon Sep 17 00:00:00 2001
From: Kornel Benko <kornel@lyx.org>
Date: Sun, 18 Nov 2018 10:37:12 +0100
Subject: [PATCH] FindAdv: Enable search for different languages in Korean
 documents too The problem here was that for european languages only the
 encoding was visible in latex output. Now also the language is provided.

---
 src/lyxfind.cpp      | 40 +++++++++++++++++++++++++++++-----------
 src/output_latex.cpp |  4 ++--
 2 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/src/lyxfind.cpp b/src/lyxfind.cpp
index 44a46f9e09..1bea091182 100644
--- a/src/lyxfind.cpp
+++ b/src/lyxfind.cpp
@@ -1516,24 +1516,42 @@ void LatexInfo::buildEntries(bool isPatternString)
         found._tokenstart = pos - count;
         if (sub.str(1).compare(0, 5, "begin") == 0) {
           size_t pos1 = pos + sub.str(0).length();
-          if (interval.par[pos1] == '[') {
-            pos1 = interval.findclosing(pos1+1, interval.par.length(), '[', ']')+1;
-          }
-          if (interval.par[pos1] == '{') {
-            found._dataEnd = interval.findclosing(pos1+1, interval.par.length()) + 1;
+          if (sub.str(5).compare("cjk") == 0) {
+            pos1 = interval.findclosing(pos1+1, interval.par.length()) + 1;
+            if ((interval.par[pos1] == '{') && (interval.par[pos1+1] == '}'))
+              pos1 += 2;
+            found.keytype = KeyInfo::isMain;
+            found._dataStart = pos1;
+            found._dataEnd = interval.par.length();
+            found.disabled = keys["foreignlanguage"].disabled;
+            found.used = keys["foreignlanguage"].used;
+            found._tokensize = pos1 - found._tokenstart;
+            found.head = interval.par.substr(found._tokenstart, found._tokensize);
           }
           else {
-            found._dataEnd = pos1;
+            if (interval.par[pos1] == '[') {
+              pos1 = interval.findclosing(pos1+1, interval.par.length(), '[', ']')+1;
+            }
+            if (interval.par[pos1] == '{') {
+              found._dataEnd = interval.findclosing(pos1+1, interval.par.length()) + 1;
+            }
+            else {
+              found._dataEnd = pos1;
+            }
+            found._dataStart = found._dataEnd;
+            found._tokensize = count + found._dataEnd - pos;
+            found.parenthesiscount = 0;
+            found.disabled = true;
           }
-          found._dataStart = found._dataEnd;
         }
         else {
+          // Handle "\end{...}"
           found._dataStart = pos + sub.str(0).length();
           found._dataEnd = found._dataStart;
+          found._tokensize = count + found._dataEnd - pos;
+          found.parenthesiscount = 0;
+          found.disabled = true;
         }
-        found._tokensize = count + found._dataEnd - pos;
-        found.parenthesiscount = 0;
-        found.disabled = true;
       }
     }
     else if (found.keytype != KeyInfo::isRegex) {
@@ -1631,7 +1649,7 @@ void LatexInfo::buildKeys(bool isPatternString)
   // No split
   makeKey("backslash|textbackslash|textasciicircum|textasciitilde|ldots", KeyInfo(KeyInfo::isChar, 1, false), isPatternString);
   // Found in fr/UserGuide.lyx
-  makeKey("og|fg|textvisiblespace", KeyInfo(KeyInfo::isChar, 0, false), isPatternString);
+  makeKey("og|fg|textvisiblespace|lyx", KeyInfo(KeyInfo::isChar, 0, false), isPatternString);
 
   // Known macros to remove (including their parameter)
   // No split
diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index a81eb02ed7..1e99675cee 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -941,7 +941,7 @@ void TeXOnePar(Buffer const & buf,
 					os << "\\L{";
 			}
 			// With CJK, the CJK tag has to be closed first (see below)
-			if (runparams.encoding->package() != Encoding::CJK
+			if ((runparams.encoding->package() != Encoding::CJK || runparams.for_search)
 			    && (par_lang != openLanguageName(state) || localswitch)
 			    && !par_lang.empty()) {
 				string bc = use_polyglossia ?
@@ -1165,7 +1165,7 @@ void TeXOnePar(Buffer const & buf,
 			os << '\n';
 
 		// when the paragraph uses CJK, the language has to be closed earlier
-		if (font.language()->encoding()->package() != Encoding::CJK) {
+		if ((font.language()->encoding()->package() != Encoding::CJK) || runparams_in.for_search) {
 			if (lang_end_command.empty()) {
 				// If this is a child, we should restore the
 				// master language after the last paragraph.
-- 
2.39.5