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-rw-r--r--data/rbot/plugins/math.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/data/rbot/plugins/math.rb b/data/rbot/plugins/math.rb
index 081c9c04..a6baa709 100644
--- a/data/rbot/plugins/math.rb
+++ b/data/rbot/plugins/math.rb
@@ -39,6 +39,11 @@ class MathPlugin < Plugin
expr.gsub!(/\b#{k}\b/, v)
}
+ # ruby doesn't like floating-point values without a 0
+ # in front of them, so find any non-digit followed by
+ # a .<digits> and insert a 0 before the .
+ expr.gsub!(/(\D|^)(\.\d+)/,'\10\2')
+
while expr =~ /(exp ([\w\d]+))/
exp = $1
val = Math.exp($2).to_s