upgrade to stdlib 4.6.1

[dsa-puppet.git] / 3rdparty / modules / stdlib / lib / puppet / parser / functions / abs.rb

diff --git a/3rdparty/modules/stdlib/lib/puppet/parser/functions/abs.rb b/3rdparty/modules/stdlib/lib/puppet/parser/functions/abs.rb
new file mode 100644 (file)
index 0000000..11d2d7f
--- /dev/null
+++ b/3rdparty/modules/stdlib/lib/puppet/parser/functions/abs.rb
@@ -0,0 +1,36 @@
+#
+# abs.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:abs, :type => :rvalue, :doc => <<-EOS
+    Returns the absolute value of a number, for example -34.56 becomes
+    34.56. Takes a single integer and float value as an argument.
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "abs(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    value = arguments[0]
+
+    # Numbers in Puppet are often string-encoded which is troublesome ...
+    if value.is_a?(String)
+      if value.match(/^-?(?:\d+)(?:\.\d+){1}$/)
+        value = value.to_f
+      elsif value.match(/^-?\d+$/)
+        value = value.to_i
+      else
+        raise(Puppet::ParseError, 'abs(): Requires float or ' +
+          'integer to work with')
+      end
+    end
+
+    # We have numeric value to handle ...
+    result = value.abs
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :