* Added output-support for Python bindings and LaTeX printing for

[ginac.git] / ginac / idx.cpp

diff --git a/ginac/idx.cpp b/ginac/idx.cpp
index 74754022e63f6f73996404d3e2ea389cd0d2fa5e..578b2bf935da21b0f475a8d281df851739e6aba5 100644 (file)
--- a/ginac/idx.cpp
+++ b/ginac/idx.cpp
@@ -156,7 +156,9 @@ void idx::print(const print_context & c, unsigned level) const
 
        } else {
 
-               if (!is_of_type(c, print_latex))
+               if (is_a<print_latex>(c))
+                       c.s << "_{";
+               else
                        c.s << ".";
                bool need_parens = !(is_ex_exactly_of_type(value, numeric) || is_ex_of_type(value, symbol));
                if (need_parens)
@@ -164,6 +166,8 @@ void idx::print(const print_context & c, unsigned level) const
                value.print(c);
                if (need_parens)
                        c.s << ")";
+               if (is_a<print_latex>(c))
+                       c.s << "}";
        }
 }
 
@@ -180,8 +184,12 @@ void varidx::print(const print_context & c, unsigned level) const
                dim.print(c, level + delta_indent);
 
        } else {
-
-               if (!is_of_type(c, print_latex)) {
+               if (is_a<print_latex>(c)) {
+                       if (covariant)
+                               c.s << "_{";
+                       else
+                               c.s << "^{";
+               } else {
                        if (covariant)
                                c.s << ".";
                        else
@@ -193,6 +201,8 @@ void varidx::print(const print_context & c, unsigned level) const
                value.print(c);
                if (need_parens)
                        c.s << ")";
+               if (is_a<print_latex>(c))
+                       c.s << "}";
        }
 }
 
@@ -212,7 +222,12 @@ void spinidx::print(const print_context & c, unsigned level) const
        } else {
 
                bool is_tex = is_of_type(c, print_latex);
-               if (!is_tex) {
+               if (is_tex) {
+                       if (covariant)
+                               c.s << "_{";
+                       else
+                               c.s << "^{";
+               } else {
                        if (covariant)
                                c.s << ".";
                        else
@@ -232,6 +247,8 @@ void spinidx::print(const print_context & c, unsigned level) const
                        c.s << ")";
                if (is_tex && dotted)
                        c.s << "}";
+               if (is_tex)
+                       c.s << "}";
        }
 }