class Rack::Mount::StrexpParser

Constants

REGEXP_NAMED_CAPTURE
Racc_arg
Racc_debug_parser
Racc_token_to_s_table

Attributes

anchor[RW]
filename[R]
lineno[R]
requirements[RW]
state[RW]

Public Instance Methods

_reduce_1(val, _values, result) click to toggle source

reduce 0 omitted

# File lib/rack/mount/strexp/parser.rb, line 116
def _reduce_1(val, _values, result)
 result = anchor ? "\\A#{val.join}\\Z" : "\\A#{val.join}" 
    result
end
_reduce_2(val, _values, result) click to toggle source
# File lib/rack/mount/strexp/parser.rb, line 121
def _reduce_2(val, _values, result)
 result = val.join 
    result
end
_reduce_4(val, _values, result) click to toggle source

reduce 3 omitted

# File lib/rack/mount/strexp/parser.rb, line 128
def _reduce_4(val, _values, result)
           name = val[0].to_sym
           requirement = requirements[name]
           result = REGEXP_NAMED_CAPTURE % [name, requirement]
         
    result
end
_reduce_5(val, _values, result) click to toggle source
# File lib/rack/mount/strexp/parser.rb, line 136
def _reduce_5(val, _values, result)
           name = val[0].to_sym
           requirement = requirements.key?(name) ? requirements[name] : '.+'
           result = REGEXP_NAMED_CAPTURE % [name, requirement]
         
    result
end
_reduce_6(val, _values, result) click to toggle source
# File lib/rack/mount/strexp/parser.rb, line 144
def _reduce_6(val, _values, result)
 result = "(?:#{val[1]})?" 
    result
end
_reduce_7(val, _values, result) click to toggle source
# File lib/rack/mount/strexp/parser.rb, line 149
def _reduce_7(val, _values, result)
 result = Regexp.escape(val[0]) 
    result
end
_reduce_none(val, _values, result) click to toggle source
# File lib/rack/mount/strexp/parser.rb, line 154
def _reduce_none(val, _values, result)
  val[0]
end
action() { || ... } click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 23
def action
  yield
end
load_file( filename ) click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 33
def load_file( filename )
  @filename = filename
  open(filename, "r") do |f|
    scan_setup(f.read)
  end
end
next_token() click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 46
def next_token
  return if @ss.eos?

  text = @ss.peek(1)
  @lineno  +=  1  if text == "\n"
  token = case @state
  when nil
    case
    when (text = @ss.scan(/\(\(|\)|:|\*)/))
       action { [:CHAR,  @ss[1]] }

    when (text = @ss.scan(/\:([a-zA-Z_]\w*)/))
       action { [:PARAM, @ss[1]] }

    when (text = @ss.scan(/\*([a-zA-Z_]\w*)/))
       action { [:GLOB,  @ss[1]] }

    when (text = @ss.scan(/\(/))
       action { [:LPAREN, text]  }

    when (text = @ss.scan(/\)/))
       action { [:RPAREN, text]  }

    when (text = @ss.scan(/./))
       action { [:CHAR,   text]  }

    else
      text = @ss.string[@ss.pos .. -1]
      raise  ScanError, "can not match: '" + text + "'"
    end  # if

  else
    raise  ScanError, "undefined state: '" + state.to_s + "'"
  end  # case state
  token
end
scan(str)
Alias for: scan_str
scan_file( filename ) click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 40
def scan_file( filename )
  load_file(filename)
  do_parse
end
scan_setup(str) click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 17
def scan_setup(str)
  @ss = StringScanner.new(str)
  @lineno =  1
  @state  = nil
end
scan_str(str) click to toggle source
# File lib/rack/mount/strexp/tokenizer.rb, line 27
def scan_str(str)
  scan_setup(str)
  do_parse
end
Also aliased as: scan