From: Nathaniel Wesley Filardo <nwf@cs.jhu.edu>
Date: Sat, 26 Aug 2017 23:03:37 +0000 (-0400)
Subject: lamp-remote: tonumber after checking regex result
X-Git-Url: https://hydra-www.ietfng.org/gitweb/?a=commitdiff_plain;h=7ff14cc06d05e09312acac9526537d708d6bd0eb;p=acmetensortoys-esp-lua_lamp

lamp-remote: tonumber after checking regex result

Otherwise, r/g/b might be nil and tonumber(nil) doesn't work out well
---

diff --git a/lamp-remote.lua b/lamp-remote.lua
index 3a59a61..ba38d33 100644
--- a/lamp-remote.lua
+++ b/lamp-remote.lua
@@ -35,8 +35,8 @@ return function(msg)
       -- on the next tick (for, e.g., delay's use).  This is done on a
       -- callback to prevent deep stacks.
       local m,r,g,b = s:match("^(%w+)%s+(%x+)%s+(%x+)%s+(%x+)%s*$")
-      g = tonumber(g,16); r = tonumber(r,16); b = tonumber(b,16)
       if m then
+        g = tonumber(g,16); r = tonumber(r,16); b = tonumber(b,16)
         fq(function()
           remotetmr:unregister()
           loaddrawfn(m)(remotetmr,remotefb,g,r,b); doremotedraw()