From 0028507a3d326add5d45d20cfe750ef964d9b3f0 Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <m.kooijman@student.utwente.nl>
Date: Wed, 1 Jul 2009 16:32:07 +0200
Subject: [PATCH] Only allow a word to start with a-z in pret-lam.
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

This prevents seeing a λ or other non a-z (but letter characters according
to the %a character class) as the start of a word.
---
 pret-lam.lua | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pret-lam.lua b/pret-lam.lua
index c05f987..cf50e87 100644
--- a/pret-lam.lua
+++ b/pret-lam.lua
@@ -62,7 +62,9 @@ end
 -- Take a single word from str, if posible. Returns the rest of the string and
 -- the word taken.
 function buffers.visualizers.lam.take_word(str)
-        res, newstr = utf.match(str, "^(%a[%a%d_]+)(.*)")
+        -- A word must always start with a-z (in particular, λ is not a valid
+        -- start of a word).
+        res, newstr = utf.match(str, "^([a-z][%a%d_]+)(.*)")
         return res, newstr or str
 end
 
-- 
2.30.2