module Haml::Shared

def balance(scanner, start, finish, count = 0)

Returns:
  • ((String, String)) - The string matched within the balanced pair

Parameters:
  • count (Fixnum) -- The number of opening characters matched
  • finish (Character) -- The character closing the balanced pair.
  • start (Character) -- The character opening the balanced pair.
  • scanner (StringScanner) -- The string scanner to move 
def balance(scanner, start, finish, count = 0)
  str = ''
  scanner = StringScanner.new(scanner) unless scanner.is_a? StringScanner
  regexp = Regexp.new("(.*?)[\\#{start.chr}\\#{finish.chr}]", Regexp::MULTILINE)
  while scanner.scan(regexp)
    str << scanner.matched
    count += 1 if scanner.matched[-1] == start
    count -= 1 if scanner.matched[-1] == finish
    return [str.strip, scanner.rest] if count == 0
  end
end

def handle_interpolation(str)

Returns:
  • (String) - The text remaining in the scanner after all `#{`s have been processed

Other tags:
    Yieldparam: scan - The scanner scanning through the string 
def handle_interpolation(str)
  scan = StringScanner.new(str)
  yield scan while scan.scan(/(.*?)(\\*)\#\{/)
  scan.rest
end

def human_indentation(indentation, was = false)

Returns:
  • (String) - The name of the indentation (e.g. `"12 spaces"`, `"1 tab"`)

Parameters:
  • was (Boolean) -- Whether or not to add `"was"` or `"were"`
  • indentation (String) -- The string used for indentation 
def human_indentation(indentation, was = false)
  if !indentation.include?(?\t)
    noun = 'space'
  elsif !indentation.include?(?\s)
    noun = 'tab'
  else
    return indentation.inspect + (was ? ' was' : '')
  end
  singular = indentation.length == 1
  if was
    was = singular ? ' was' : ' were'
  else
    was = ''
  end
  "#{indentation.length} #{noun}#{'s' unless singular}#{was}"
end