diff options
Diffstat (limited to 'lib/puppet/parser/functions/range.rb')
| -rw-r--r-- | lib/puppet/parser/functions/range.rb | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/lib/puppet/parser/functions/range.rb b/lib/puppet/parser/functions/range.rb index 49fba21..d690df7 100644 --- a/lib/puppet/parser/functions/range.rb +++ b/lib/puppet/parser/functions/range.rb @@ -25,8 +25,8 @@ integers automatically) Will return: ["a","b","c"] range("host01", "host10") - Will return: ["host01", "host02", ..., "host09", "host10"] +NB Be explicit in including trailing zeros. Otherwise the underlying ruby function will fail. Passing a third argument will cause the generated range to step by that interval, e.g. @@ -37,18 +37,17 @@ Will return: [0,2,4,6,8] EOS ) do |arguments| - # We support more than one argument but at least one is mandatory ... - raise(Puppet::ParseError, "range(): Wrong number of " + - "arguments given (#{arguments.size} for 1)") if arguments.size < 1 + raise(Puppet::ParseError, 'range(): Wrong number of ' + + 'arguments given (0 for 1)') if arguments.size == 0 if arguments.size > 1 start = arguments[0] stop = arguments[1] step = arguments[2].nil? ? 1 : arguments[2].to_i.abs - type = '..' # We select simplest type for Range available in Ruby ... + type = '..' # Use the simplest type of Range available in Ruby - elsif arguments.size > 0 + else # arguments.size == 1 value = arguments[0] if m = value.match(/^(\w+)(\.\.\.?|\-)(\w+)$/) @@ -56,16 +55,16 @@ Will return: [0,2,4,6,8] stop = m[3] type = m[2] - + step = 1 elsif value.match(/^.+$/) - raise(Puppet::ParseError, 'range(): Unable to compute range ' + - 'from the value given') + raise(Puppet::ParseError, "range(): Unable to compute range " + + "from the value: #{value}") else - raise(Puppet::ParseError, 'range(): Unknown format of range given') + raise(Puppet::ParseError, "range(): Unknown range format: #{value}") end end - # Check whether we have integer value if so then make it so ... + # If we were given an integer, ensure we work with one if start.to_s.match(/^\d+$/) start = start.to_i stop = stop.to_i @@ -76,10 +75,10 @@ Will return: [0,2,4,6,8] range = case type when /^(\.\.|\-)$/ then (start .. stop) - when /^(\.\.\.)$/ then (start ... stop) # Exclusive of last element ... + when '...' then (start ... stop) # Exclusive of last element end - result = range.step(step).collect { |i| i } # Get them all ... Pokemon ... + result = range.step(step).to_a return result end |