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Versions: 12
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Contents
class Ppl::Format::Custom
attr_accessor :format
attr_accessor :preset_formats
def self.format(symbol, &block)
@format_blocks ||= {}
@format_blocks[symbol] = block
end
def self.process(key, object)
if @format_blocks[key]
@format_blocks[key][object]
else
key
end
end
def initialize(format = nil)
@format = format
end
def process(object)
@object = object
string_pieces = @format.scan(/[^%]+|%-?\d*./)
string_pieces.map(&method(:process_piece)).join
end
def use_preset(format_name)
@format = @preset_formats[format_name]
end
private
def process_piece(string)
matches = string.scan(/^%(-?\d+)?([a-z])$/i)
if !matches.empty?
output = generate_output(matches[0][1].to_sym)
pad_output(output, matches[0][0].to_i)
else
string
end
end
def generate_output(symbol)
self.class.process(symbol, @object)
end
def pad_output(output, padding)
if padding > 0
output.to_s.rjust(padding, " ")
elsif padding < 0
output.to_s.ljust(padding.abs, " ")
else
output
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems