Class: AkamaiApi::ECCU::Tokenizer

Inherits:
Object
  • Object
show all
Defined in:
lib/akamai_api/eccu/tokenizer.rb

Overview

Class used to tokenize path used for invalidate cache

foo/bar/*.txt

Constant Summary collapse

SEPARATORS = 
['/']
DIR_REGEXP = 
/^[^\/]+$/
WILDCARD_REGEXP = 
/^\**$/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(expression) ⇒ Tokenizer

Returns a new instance of Tokenizer.



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 15

def initialize expression
  @cursor = -1
  tokenize expression
end

Instance Attribute Details

#cursor ⇒ Object (readonly)

Returns the value of attribute cursor.



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 13

def cursor
  @cursor
end

#tokens ⇒ Object (readonly)

Returns the value of attribute tokens.



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 13

def tokens
  @tokens
end

Instance Method Details

#current_token ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 20

def current_token
  return nil if cursor == -1
  tokens[cursor]
end

#look_next_token(i = 1) ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 30

def look_next_token i = 1
  tokens[cursor + i] 
end

#look_next_token_except(exclude_type = nil) ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 38

def look_next_token_except exclude_type = nil
  look_next_token if exclude_type == nil

  i = 1
  while tokens[cursor + i].type == exclude_type
    i += 1
  end
  tokens[cursor + i]
end

#look_next_token_of_type(token_type = nil) ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 48

def look_next_token_of_type token_type = nil
  look_next_token if token_type == nil

  i = cursor
  while tokens.size < i
    return tokens[i] if tokens[i].type == token_type
    i += 1
  end
  nil
end

#look_prev_token(i = 1) ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 34

def look_prev_token i = 1
  tokens[cursor - 1]
end

#next_token ⇒ Object 



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# File 'lib/akamai_api/eccu/tokenizer.rb', line 25

def next_token
  @cursor += 1
  current_token
end