1 files changed, 37 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/chop.rb b/lib/puppet/parser/functions/chop.rb
new file mode 100644
index 0000000..636b990
--- /dev/null
+++ b/lib/puppet/parser/functions/chop.rb
@@ -0,0 +1,37 @@
+#
+#  chop.rb
+#
+
+module Puppet::Parser::Functions
+  newfunction(:chop, :type => :rvalue, :doc => <<-'EOS'
+    Returns a new string with the last character removed. If the string ends 
+    with `\r\n`, both characters are removed. Applying chop to an empty 
+    string returns an empty string. If you wish to merely remove record 
+    separators then you should use the `chomp` function.
+    Requires a string or array of strings as input.
+    EOS
+  ) do |arguments|
+
+    raise(Puppet::ParseError, "chop(): Wrong number of arguments " +
+      "given (#{arguments.size} for 1)") if arguments.size < 1
+
+    value = arguments[0]
+    klass = value.class
+
+    unless [Array, String].include?(klass)
+      raise(Puppet::ParseError, 'chop(): Requires either an ' +
+        'array or string to work with')
+    end
+
+    if value.is_a?(Array)
+      # Numbers in Puppet are often string-encoded which is troublesome ...
+      result = value.collect { |i| i.is_a?(String) ? i.chop : i }
+    else
+      result = value.chop
+    end
+
+    return result
+  end
+end
+
+# vim: set ts=2 sw=2 et :