Squashed 'puppet/modules/stdlib/' content from commit 7112363

git-subtree-dir: puppet/modules/stdlib
git-subtree-split: 71123634744b9fe2ec7d6a3e38e9789fd84801e3

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/puppet/parser/functions/min.rb b/lib/puppet/parser/functions/min.rb
new file mode 100644
index 00000000..6bd6ebf2
--- /dev/null
+++ b/lib/puppet/parser/functions/min.rb
@@ -0,0 +1,21 @@
+module Puppet::Parser::Functions
+  newfunction(:min, :type => :rvalue, :doc => <<-EOS
+    Returns the lowest value of all arguments.
+    Requires at least one argument.
+    EOS
+  ) do |args|
+
+    raise(Puppet::ParseError, "min(): Wrong number of arguments " +
+          "need at least one") if args.size == 0
+
+    # Sometimes we get numbers as numerics and sometimes as strings.
+    # We try to compare them as numbers when possible
+    return args.min do |a,b|
+      if a.to_s =~ /\A^-?\d+(.\d+)?\z/ and b.to_s =~ /\A-?\d+(.\d+)?\z/ then
+        a.to_f <=> b.to_f
+      else
+        a.to_s <=> b.to_s
+      end
+    end
+  end
+end