X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FMathParser.C;h=cb208ffca3c78798280fe2cb0b0a89a2f54185af;hb=8b7cc1b498b9dc1925647d4a7e7721a569e42dc5;hp=2fe641cf93c659cca2eaf4641fcfbfacc565ad7d;hpb=4689b5eea3fbe0a10332efa03c9463889f68affe;p=lyx.git

diff --git a/src/mathed/MathParser.C b/src/mathed/MathParser.C
index 2fe641cf93..cb208ffca3 100644
--- a/src/mathed/MathParser.C
+++ b/src/mathed/MathParser.C
@@ -213,11 +213,19 @@ enum CatCode {
 	catInvalid     // 15   <delete>
 };
 
-CatCode theCatcode[256];
+CatCode theCatcode[128];
 
 
-inline CatCode catcode(unsigned char c)
+inline CatCode catcode(lyx::char_type c)
 {
+	/* The fact that we use unicode internally does not change Knuth's TeX
+	engine. It is still 7bit only, not even latin1 or something like that.
+	Therefore, the catcode table needs only to have 128 entries.
+	Everything not in that range is catOther.
+	*/
+	if (c >= 128)
+		return catOther;
+
 	return theCatcode[c];
 }
 
@@ -1448,7 +1456,7 @@ void mathed_parse_normal(InsetMathGrid & grid, string const & str)
 
 void initParser()
 {
-	fill(theCatcode, theCatcode + 256, catOther);
+	fill(theCatcode, theCatcode + 128, catOther);
 	fill(theCatcode + 'a', theCatcode + 'z' + 1, catLetter);
 	fill(theCatcode + 'A', theCatcode + 'Z' + 1, catLetter);