Module: Tap::Templater::Utils

Included in:
Tap::Templater
Defined in:
lib/tap/templater.rb

Overview

Utility methods for Templater; mostly string manipulations useful in creating documentation.

Instance Method Summary collapse

Instance Method Details

#comment(str) ⇒ Object

Comments out the string.



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# File 'lib/tap/templater.rb', line 68

def comment(str)
  str.split("\n").collect {|line| "# #{line}" }.join("\n")
end

#indent(indent, str) ⇒ Object 



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# File 'lib/tap/templater.rb', line 120

def indent(indent, str)
  lines = str.kind_of?(Array) ? str : str.split("\n")
  lines.collect! {|line| "#{indent}#{line}" }
  lines.join("\n")
end

#module_nest(const_name, indent = " ", line_sep = "\n") ⇒ Object

Nest the return of the block in the nesting module.

module_nest('Some::Nested') { "class Const\nend" }
# => %Q{
# module Some
#   module Nested
#     class Const
#     end
#   end
# end
# }.strip



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# File 'lib/tap/templater.rb', line 112

def module_nest(const_name, indent="  ", line_sep="\n")
  nesting = const_name.split(/::/).collect do |name|
    ["module #{name}", "end"]
  end
  
  nest(nesting, indent, line_sep) { yield }
end

#nest(nesting, indent = " ", line_sep = "\n") ⇒ Object

Nest the return of the block in the nesting lines.

nest([["\nmodule Some", "end\n"],["module Nested", "end"]]) { "class Const\nend" }
# => %Q{
# module Some
#   module Nested
#     class Const
#     end
#   end
# end
# }



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# File 'lib/tap/templater.rb', line 84

def nest(nesting, indent="  ", line_sep="\n")
  content = yield
  return content if nesting.empty?
  
  depth = nesting.length
  lines = [indent * depth + content.gsub(/#{line_sep}/, line_sep + indent * depth)]

  nesting.reverse_each do |(start_line, end_line)|
    depth -= 1
    lines.unshift(indent * depth + start_line)
    lines << (indent * depth + end_line)
  end

  lines.join(line_sep)
end

#yamlize(object) ⇒ Object

yamlize converts the object to YAML (using to_yaml), omitting the header and final newline:

{'key' => 'value'}.to_yaml           # => "--- \nkey: value\n"
yamlize {'key' => 'value'}           # => "key: value"



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# File 'lib/tap/templater.rb', line 63

def yamlize(object)
  object == nil ? "~" : YAML.dump(object)[4...-1].strip
end