From 16503ed812eef1ab2d30cba5596bd38d1b670c81 Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Fri, 4 Dec 2009 16:54:15 +0100
Subject: [PATCH] Require an automatic subscript to start with a number.

---
 pret-lam.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pret-lam.lua b/pret-lam.lua
index d44c5b3..3cc01af 100644
--- a/pret-lam.lua
+++ b/pret-lam.lua
@@ -197,7 +197,7 @@ 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,]+)$", "^(%a+)(%d[%d,]+)$"}
         -- 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.
-- 
2.30.2