Module: Inkjet::Indent

Defined in:
lib/inkjet/indent.rb

Defined Under Namespace

Modules: String Classes: Formatter

Constant Summary collapse

TABSTOP =

TODO set based on config

2

Class Method Summary collapse

Class Method Details

.add_bindings(block) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 18

def self.add_bindings(block)
  block.binding.eval("def puts(output=''); Inkjet::Indent.puts(output); end")
  block.binding.eval("def print(output=''); Inkjet::Indent.print(output); end")
  block.binding.eval("def format_with(meth, *args); Inkjet::Indent.format_with(meth, *args); end")
  block.binding.eval("def undent(&block); Inkjet::Indent.undent(&block); end")
  block
end

.apply_formatters(output) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 64

def self.apply_formatters(output)
  formatters.each { |f| output = f.call_on(output) }
  output
end

.format_with(fmeth, *fargs) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 60

def self.format_with(fmeth, *fargs)
  formatters.push(Formatter.new(fmeth, *fargs))
end

.formatters ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 56

def self.formatters
  @@formatters ||= []
end

.indent(*args, &block) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 26

def self.indent(*args, &block)
  @@spaces ||= 0
  if block_given?
    @@spaces += args[0] || TABSTOP
    scoped_formatters = formatters.clone

    add_bindings(block).call
    
    @@formatters = scoped_formatters
    @@spaces -= args[0] || TABSTOP
  else
    spaces = args[1] || TABSTOP
    "#{padding(spaces.to_i)}#{args[0].to_s.split("\n").join("\n#{padding(spaces.to_i)}")}"
  end
end

.padding(spaces) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 69

def self.padding(spaces)
  spaces.times.map {" "}.join
end

.print(output = '') ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 77

def self.print(output='')
  STDOUT.print apply_formatters(indent(output, @@spaces))
end

.puts(output = '') ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 73

def self.puts(output='')
  STDOUT.puts apply_formatters(indent(output, @@spaces))
end

.undent(&block) ⇒ Object 



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# File 'lib/inkjet/indent.rb', line 42

def self.undent(&block)
  @@spaces ||= 0
  if block_given?
    scoped_spaces = @@spaces
    @@spaces = 0
    scoped_formatters = formatters.clone

    add_bindings(block).call
    
    @@formatters = scoped_formatters
    @@spaces = scoped_spaces
  end
end