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authorRyan McKern <ryan.mckern@puppetlabs.com>2014-05-13 15:01:44 -0700
committerRyan McKern <ryan.mckern@puppetlabs.com>2014-05-13 15:46:40 -0700
commit42743614cb13541a2973f28251b1f79a33019d77 (patch)
treef1a41270500152f5a07491058b11f3b04b2788c7 /lib/puppet
parent62e8c1d76902e6f22cb9f7b3abd43e757b4130a3 (diff)
downloadpuppet-stdlib-42743614cb13541a2973f28251b1f79a33019d77.tar.gz
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(MODULES-905) Add bool2str() and camelcase() for string manipulation
Python likes to have its constants Capitalized, and the capitalize function only understands strings... so I shave a yak. bool2str will convert a boolean to its equivalent string value, and camelcase extends on uppercase & downcase to convert an underscore delimited string into a camelcased string.
Diffstat (limited to 'lib/puppet')
-rw-r--r--lib/puppet/parser/functions/bool2str.rb30
-rw-r--r--lib/puppet/parser/functions/camelcase.rb33
2 files changed, 63 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/bool2str.rb b/lib/puppet/parser/functions/bool2str.rb
new file mode 100644
index 0000000..a97d356
--- /dev/null
+++ b/lib/puppet/parser/functions/bool2str.rb
@@ -0,0 +1,30 @@
+#
+# bool2str.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:bool2str, :type => :rvalue, :doc => <<-EOS
+ Converts a boolean to a string.
+ Requires a single boolean or string as an input.
+ EOS
+ ) do |arguments|
+
+ raise(Puppet::ParseError, "bool2str(): Wrong number of arguments " +
+ "given (#{arguments.size} for 1)") if arguments.size < 1
+
+ value = arguments[0]
+ klass = value.class
+
+ # We can have either true or false, or string which resembles boolean ...
+ unless [FalseClass, TrueClass, String].include?(klass)
+ raise(Puppet::ParseError, 'bool2str(): Requires either ' +
+ 'boolean or string to work with')
+ end
+
+ result = value.is_a?(String) ? value : value.to_s
+
+ return result
+ end
+end
+
+# vim: set ts=2 sw=2 et :
diff --git a/lib/puppet/parser/functions/camelcase.rb b/lib/puppet/parser/functions/camelcase.rb
new file mode 100644
index 0000000..d7f43f7
--- /dev/null
+++ b/lib/puppet/parser/functions/camelcase.rb
@@ -0,0 +1,33 @@
+#
+# camelcase.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:camelcase, :type => :rvalue, :doc => <<-EOS
+Converts the case of a string or all strings in an array to camel case.
+ EOS
+ ) do |arguments|
+
+ raise(Puppet::ParseError, "camelcase(): 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, 'camelcase(): Requires either ' +
+ '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.split('_').map{|e| e.capitalize}.join : i }
+ else
+ result = value.split('_').map{|e| e.capitalize}.join
+ end
+
+ return result
+ end
+end
+
+# vim: set ts=2 sw=2 et :