First version. Improvment upon bool2num function found on the Internet.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/bool2num.rb b/bool2num.rb
new file mode 100644
index 0000000..c197b17
--- /dev/null
+++ b/bool2num.rb
@@ -0,0 +1,36 @@
+#
+# bool2num.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:bool2num, :type => :rvalue, :doc => <<-EOS
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "bool2num(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    boolean = arguments[0]
+
+    result = case boolean
+      #
+      # This is how undef looks like in Puppet ...
+      # We yield 0 (or false if you wish) in this case.
+      #
+      when /^$/, ''        then '0'
+      when /^(1|t|true)$/  then '1'
+      when /^(0|f|false)$/ then '0'
+      # This is not likely to happen ...
+      when /^(undef|undefined)$/ then '0'
+      # We may get real boolean values as well ...
+      when true  then '1'
+      when false then '0'
+      else
+        raise(Puppet::ParseError, 'bool2num(): Unknown type of boolean given')
+    end
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :