interactive_find_missing_verbs.rb

def starts_listing(line)
  line.include? "\\begin{lstlisting}"
end

def ends_listing(line)
  line.include? "\\end{lstlisting}"
end

def process_file_line(unique_words, line)
  unique_words.each do |verb_word|
    regex_contents = verb_word.gsub('$','\$').gsub('?','\?').gsub('.','\.').gsub('(','\(').gsub(')','\)').gsub('+','\+').gsub('{','\{').gsub('}','\}').gsub('[','\[').gsub(']','\]').gsub('\\','\\\\')
    regex = /\s#{regex_contents}\s/

    #puts "Testing regex \/\\s#{regex_contents}\/"
    if line.match(regex)
      puts "**Line matched [#{verb_word}]"
      updated_line = line.gsub(regex, " \\verb|#{verb_word}| ")
      puts "<<<Original"
      puts line
      puts "==========="
      puts updated_line
      puts ">>>Updated"
      STDOUT.flush
      case get_input
      when 'k', 'K'
        line = updated_line
      when 's', 'S'
      when 'i', 'I'
        unique_words.delete(verb_word)
      when 'l', 'L'
        puts "***skipping line"
        return line
      when 'v', 'V'
        puts "***opening in vim"
        File.open('unique_verbs.tmp', 'w') {|f| f.write(line) }
        success = system('vim','unique_verbs.tmp')
        line = File.open('unique_verbs.tmp', 'r').readlines.join("\n")
        puts "***Updated line to: #{line}"
      else
        puts "***input not matched"
      end
    end
  end
  line
end

def process_file_lines(inlines)
  matching_lines = `grep "\\verb[\|\!][^\|\!]*[\|\!]" ../chapters/*.tex`
  matching_words = matching_lines.scan(/\\verb[|!]([^|!]*)[|!]/)
  unique_words = matching_words.flatten.sort.uniq - [""," ","\\n","b","n","'","it","on","s","y","#","-","- ","1","[","]","-","and","for","its","up","the","with","Rails","has","else","get"]
  outlines = []
  while(inlines.count > 0)
    line = inlines.shift
    #skip listing blocks
    if starts_listing(line)
      until ends_listing(line)
        outlines << line
        line = inlines.shift
      end
      outlines << line
      line = inlines.shift
    end

    #check for unverbed verbwords
    outlines << process_file_line(unique_words, line)
  end
  outlines
end

def get_input
  instructions = "Keep change, Skip this change, skip this Line, Ignore this word in the future, or edit in Vim"
  puts instructions
  input = gets.chomp
  until input.match(/[kKsSiIlLvV]/)
    puts "I didn't understand \"#{input}\". #{instructions}"
    input = gets.chomp
  end
  input
end

Dir.glob("../chapters/*.tex") do |filename_with_extension|
  puts "*Scanning #{filename_with_extension}"
  #http://pleac.sourceforge.net/pleac_ruby/fileaccess.html
  File.open("../chapters/#{filename_with_extension}", 'r+') do |f|   # open file for update
    inlines = f.readlines           # read into array of lines
    outlines = process_file_lines(inlines)
    f.pos = 0                     # back to start
    f.print outlines                 # write out modified lines
    f.truncate(f.pos)             # truncate to new length
  end                             # file is automatically closed
end