From 0fa7dda2cbfc73cc25688ff6125921337a8914ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Thomas?= <berlios.de@thomascorner.com>
Date: Sat, 9 Aug 2008 15:36:11 +0000
Subject: [PATCH] Detect math error in hangman & use consistent/clear error
 messaging

---
 examples/hangman.lua | 10 +++++++++-
 examples/led.lua     |  2 +-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/examples/hangman.lua b/examples/hangman.lua
index 49eaa447..09e68ed0 100644
--- a/examples/hangman.lua
+++ b/examples/hangman.lua
@@ -1,10 +1,18 @@
 -- Hangman in eLua using the 'term' module
 -- Inspired by the original 'hangman' from the bsdgames package
 
+-- we need a random function
+-- using math.random for now, which implies target=lua, not lualong
+if not math then
+  print "\nError: Hangman needs the math module (disabled when target=lualong) !\n"
+  return
+end
+
+
 local h, w = term.lines(), term.cols()
 local tries = 0
 
--- "Databse" with our words
+-- "Database" with our words
 local words = { "simple", "hangman", "guess", "elua", "inane", "serial", 
   "stupenduous", "software" }
 
diff --git a/examples/led.lua b/examples/led.lua
index 15b546ef..48284c78 100644
--- a/examples/led.lua
+++ b/examples/led.lua
@@ -7,7 +7,7 @@ elseif pd.platform() == "LM3S" then
 elseif pd.platform() == "STR9" then
   ledpin = pio.P9_0
 else
-  print( "Unknown platform " .. pd.platform() )
+  print( "\nError: Unknown platform " .. pd.platform() .. " !\n" )
   return
 end