class Phlexite::Cli::Glob

# File lib/phlexite/cli/glob.rb, line 10
def initialize glob_string
  @glob_string = glob_string
end

# File lib/phlexite/cli/glob.rb, line 69
def smoosh chars
  out = []
  until chars.empty?
    char = chars.shift
    if char == "*" && chars.first == "*"
      chars.shift
      chars.shift if chars.first == "/"
      out.push("**")
    else
      out.push(char)
    end
  end
  out
end

# File lib/phlexite/cli/glob.rb, line 65
def to_regexp
  Regexp.new(to_regexp_string)
end

# File lib/phlexite/cli/glob.rb, line 14
def to_regexp_string
  chars = @glob_string.chars

  chars = smoosh(chars)

  curlies = 0
  escaping = false
  string = chars.map do |char|
    if escaping
      escaping = false
      char
    else
      case char
      when "**"
        "([^/]+/)*"
      when "*"
        ".*"
      when "?"
        "."
      when "."
        "\\."

      when "{"
        curlies += 1
        "("
      when "}"
        if curlies > 0
          curlies -= 1
          ")"
        else
          char
        end
      when ","
        if curlies > 0
          "|"
        else
          char
        end
      when "\\"
        escaping = true
        "\\"

      else
        char

      end
    end
  end.join
  START_OF_FILENAME + string + END_OF_STRING
end