Allow commas in implicit subscripts.

diff --git a/pret-lam.lua b/pret-lam.lua
index 568da7f565fbe7f28f7f63bf2f6986924baa418b..6c1ee96a2b39899a1b45f832c8766e7b917c68b2 100644 (file)
--- a/pret-lam.lua
+++ b/pret-lam.lua
@@ -191,7 +191,7 @@ function vis.begin_of_display()
     if in_block == 0 then
         -- Initially allow subscripts using _ or just appending a number (later,
         -- we will add extra patterns here.
-        submatches = {"^(%a*)_([%a%d,]+)$", "^(%a+)(%d+)$"}
+        submatches = {"^(%a*)_([%a%d,]+)$", "^(%a+)([%d,]+)$"}
         -- This stores all the bases we've encountered so far (to prevent
         -- duplicates). For each of them there will be a pattern in submatches
         -- above.