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Versions: 11
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Contents
module HammerCLI
module Help
class TextBuilder
INDENT_STEP = 2
LIST_INDENT = 20
def initialize(richtext = false)
@out = StringIO.new
@richtext = richtext
end
def string
@out.string
end
def text(content)
puts unless first_print?
puts content
end
def list(items)
return if items.empty?
items = normalize_list(items)
max_len = items.map { |i| i[0].to_s.length }.max
indent_size = (max_len + INDENT_STEP > LIST_INDENT) ? (max_len + INDENT_STEP) : LIST_INDENT
puts unless first_print?
items.each do |col1, col2|
# handle multiple lines in the second column
col2 = indent(col2.to_s, ' ' * indent_size).lstrip
line = "%-#{indent_size}s%s" % [col1, col2]
line.strip!
puts line
end
end
def section(label, &block)
puts unless first_print?
heading(label)
sub_builder = TextBuilder.new(@richtext)
yield(sub_builder) if block_given?
puts indent(sub_builder.string)
end
def indent(content, indentation = nil)
indentation ||= " " * INDENT_STEP
content = content.split("\n") unless content.is_a? Array
content.map do |line|
(indentation + line).rstrip
end.join("\n")
end
protected
def heading(label)
label = "#{label}:"
label = HighLine.color(label, :bold) if @richtext
puts label
end
def puts(*args)
@out.puts(*args)
end
def first_print?
@out.size == 0
end
def normalize_list(items)
items.map do |i|
i.is_a?(Array) ? i : [i]
end
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems