From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Tue, 5 Mar 2002 20:32:16 +0000 (+0000)
Subject: fixed LaTeX output of indexed objects
X-Git-Tag: release_1-0-7~4
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=b89179d5c32459bd61f161278e2cae24abe36d4e

fixed LaTeX output of indexed objects
---

diff --git a/ginac/idx.cpp b/ginac/idx.cpp
index 160bc378..a3767fe8 100644
--- a/ginac/idx.cpp
+++ b/ginac/idx.cpp
@@ -157,7 +157,7 @@ void idx::print(const print_context & c, unsigned level) const
 	} else {
 
 		if (is_a<print_latex>(c))
-			c.s << "_{";
+			c.s << "{";
 		else
 			c.s << ".";
 		bool need_parens = !(is_ex_exactly_of_type(value, numeric) || is_ex_of_type(value, symbol));
@@ -184,12 +184,9 @@ void varidx::print(const print_context & c, unsigned level) const
 		dim.print(c, level + delta_indent);
 
 	} else {
-		if (is_a<print_latex>(c)) {
-			if (covariant)
-				c.s << "_{";
-			else
-				c.s << "^{";
-		} else {
+		if (is_a<print_latex>(c))
+			c.s << "{";
+		else {
 			if (covariant)
 				c.s << ".";
 			else
diff --git a/ginac/indexed.cpp b/ginac/indexed.cpp
index 6c2683c3..765a07c8 100644
--- a/ginac/indexed.cpp
+++ b/ginac/indexed.cpp
@@ -328,9 +328,10 @@ void indexed::printindices(const print_context & c, unsigned level) const
 
 			while (it != itend) {
 				bool cur_covariant = (is_ex_of_type(*it, varidx) ? ex_to<varidx>(*it).is_covariant() : true);
-				if (first || cur_covariant != covariant) {
+				if (first || cur_covariant != covariant) { // Variance changed
+					// The empty {} prevents indices from ending up on top of each other
 					if (!first)
-						c.s << "}";
+						c.s << "}{}";
 					covariant = cur_covariant;
 					if (covariant)
 						c.s << "_{";