Module: WhitespaceLint

Included in:
Refiner
Defined in:
lib/whitespace_lint.rb

Overview

Whitespace error linter

Instance Method Summary collapse

Instance Method Details

#add_line_highlights(line, base_index, highlights) ⇒ Object 



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# File 'lib/whitespace_lint.rb', line 3

def add_line_highlights(line, base_index, highlights)
  last_seen_whitespace = -1
  last_seen_non_ws = -1
  line.each_char.with_index do |char, index|
    break if char == "\n"
    break if char == "\r"

    if char == ' ' || char == "\t"
      last_seen_whitespace = index
    else
      last_seen_non_ws = index
    end
  end

  if last_seen_non_ws < last_seen_whitespace
    ((last_seen_non_ws + 1)..last_seen_whitespace).each do |index|
      highlights << (base_index + index)
    end
  end
end

#collect_ws_highlights(string) ⇒ Object 



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# File 'lib/whitespace_lint.rb', line 24

def collect_ws_highlights(string)
  highlights = Set.new()
  line_start_index = 0
  string.each_line do |line|
    add_line_highlights(line, line_start_index, highlights)

    line_start_index += line.length
  end
  return highlights
end