Module: WhoCalledMe::Utils::CodeLinesUtils

Defined in:
lib/who_called_me/utils/code_lines_utils.rb

Instance Method Summary collapse

Instance Method Details

#boxed_code_snippet_around(called_line) ⇒ Object 



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# File 'lib/who_called_me/utils/code_lines_utils.rb', line 13

def boxed_code_snippet_around(called_line)
  file, line_nbr, context = file_and_line_details(called_line)
  formatted_code_snippet = numbered_lines_section_around(file, line_nbr)
  #formatted_code_snippet = WhoCalledMe::Utils::FileUtils.numbered_lines_section_around(file, line_nbr)
  formatted_code_snippet.flatten #TODO : fix the numbered_lines_section_around so that it returns a flat array
end

#file_and_line_details(called_line) ⇒ Object

input = Users/ara//foo.rb:3:in ‘level_1’

> [‘/ara//foo.rb’,3,“in ‘level_1’”]



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# File 'lib/who_called_me/utils/code_lines_utils.rb', line 7

def file_and_line_details(called_line)
  file, line_nbr, context  = called_line.split(':')
  ['/'+file, line_nbr.to_i, context]
end

#numbered_lines_section_around(filename, center_line_number, padding = 1) ⇒ Object

Usage:

puts numbered_lines_section_around('/todo.txt', 9).join("\n")
puts numbered_lines_section_around('/todo.txt', 9, padding = 3).join("\n")



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# File 'lib/who_called_me/utils/code_lines_utils.rb', line 25

def numbered_lines_section_around(filename, center_line_number, padding = 1)
  lines_range =   range_around(center_line_number, padding)
  max_digits  =   max_digits_in(lines_range)

  all_lines   = File.open(filename).readlines # TODO : optimize (don't read lines after the range limit)

  filename_line = "| File : #{filename}"
  hr            = '+' + '-'*filename_line.length

  [].tap do |formatted_lines|
    formatted_lines << hr
    formatted_lines << filename_line
    formatted_lines << hr
    formatted_lines << lines_range.collect { |nbr|
      raw_line      =   all_lines[nbr-1].chomp
      numbered_line =   "| line %#{max_digits}s : %s" % [nbr, raw_line]
      (center_line_number==nbr) ?
          colour_current_line(numbered_line) :
          numbered_line
    }
    formatted_lines << hr
  end
end