diff options
author | TP Honey <tphoney@users.noreply.github.com> | 2015-08-27 10:50:29 +0100 |
---|---|---|
committer | TP Honey <tphoney@users.noreply.github.com> | 2015-08-27 10:50:29 +0100 |
commit | b10978703a5e4f07f240c509a3cf881210fbd5c5 (patch) | |
tree | fca31ecf05fee935edd06ea1b2e8ed8aaa24fa84 /lib/puppet/parser | |
parent | 1bed010dbbd4590b3299c81b0e962e76b8ffa845 (diff) | |
parent | 2d4f5aa4d943e27ffeae524469f9c6eb18ce64d8 (diff) | |
download | puppet-stdlib-b10978703a5e4f07f240c509a3cf881210fbd5c5.tar.gz puppet-stdlib-b10978703a5e4f07f240c509a3cf881210fbd5c5.tar.bz2 |
Merge pull request #514 from DavidS/add-convert_base
Adds a convert_base function, which can convert numbers between bases
Diffstat (limited to 'lib/puppet/parser')
-rw-r--r-- | lib/puppet/parser/functions/convert_base.rb | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/convert_base.rb b/lib/puppet/parser/functions/convert_base.rb new file mode 100644 index 0000000..0fcbafe --- /dev/null +++ b/lib/puppet/parser/functions/convert_base.rb @@ -0,0 +1,35 @@ +module Puppet::Parser::Functions + + newfunction(:convert_base, :type => :rvalue, :arity => 2, :doc => <<-'ENDHEREDOC') do |args| + + Converts a given integer or base 10 string representing an integer to a specified base, as a string. + + Usage: + + $binary_repr = convert_base(5, 2) # $binary_repr is now set to "101" + $hex_repr = convert_base("254", "16") # $hex_repr is now set to "fe" + + ENDHEREDOC + + raise Puppet::ParseError, ("convert_base(): First argument must be either a string or an integer") unless (args[0].is_a?(Integer) or args[0].is_a?(String)) + raise Puppet::ParseError, ("convert_base(): Second argument must be either a string or an integer") unless (args[1].is_a?(Integer) or args[1].is_a?(String)) + + if args[0].is_a?(String) + raise Puppet::ParseError, ("convert_base(): First argument must be an integer or a string corresponding to an integer in base 10") unless args[0] =~ /^[0-9]+$/ + end + + if args[1].is_a?(String) + raise Puppet::ParseError, ("convert_base(): First argument must be an integer or a string corresponding to an integer in base 10") unless args[1] =~ /^[0-9]+$/ + end + + number_to_convert = args[0] + new_base = args[1] + + number_to_convert = number_to_convert.to_i() + new_base = new_base.to_i() + + raise Puppet::ParseError, ("convert_base(): base must be at least 2 and must not be greater than 36") unless new_base >= 2 and new_base <= 36 + + return number_to_convert.to_s(new_base) + end +end |