Class: REXML::Source

Inherits:
Object
  • Object
show all
Includes:
Encoding
Defined in:
lib/compat/opal/rexml/source.rb

Constant Summary

Constants included from Encoding

Encoding::ASCII_8BIT, Encoding::UTF_8

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arg, encoding = nil) ⇒ Source

Returns a new instance of Source.



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# File 'lib/compat/opal/rexml/source.rb', line 81

def initialize(arg, encoding=nil)
  @orig = arg
  @scanner = StringScanner.new(@orig)
  if encoding
    self.encoding = encoding
  else
    detect_encoding
  end
  @line = 0
  @encoded_terms = {}
end

Instance Attribute Details

#encoding ⇒ Object

Returns the value of attribute encoding.



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# File 'lib/compat/opal/rexml/source.rb', line 67

def encoding
  @encoding
end

#line ⇒ Object (readonly)

Returns the value of attribute line.



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# File 'lib/compat/opal/rexml/source.rb', line 66

def line
  @line
end

Instance Method Details

#buffer ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 93

def buffer
  @scanner.rest
end

#buffer_encoding=(encoding) ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 103

def buffer_encoding=(encoding)
  # no-op under Opal (no Encoding support)
end

#current_line ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 171

def current_line
  lines = @orig.split
  res = lines.grep @scanner.rest[0..30]
  res = res[-1] if res.kind_of? Array
  lines.index( res ) if res
end

#drop_parsed_content ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 97

def drop_parsed_content
  if @scanner.pos > Private::SCANNER_RESET_SIZE
    @scanner = StringScanner.new(@scanner.rest)
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/compat/opal/rexml/source.rb', line 167

def empty?
  @scanner.eos?
end

#ensure_buffer ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 125

def ensure_buffer
end

#match(pattern, cons = false) ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 128

def match(pattern, cons=false)
  pattern = Regexp.new(Regexp.escape(pattern)) if pattern.is_a?(String)
  if cons
    @scanner.scan(pattern).nil? ? nil : @scanner
  else
    @scanner.check(pattern).nil? ? nil : @scanner
  end
end

#match?(pattern, cons = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/compat/opal/rexml/source.rb', line 137

def match?(pattern, cons=false)
  pattern = Regexp.new(Regexp.escape(pattern)) if pattern.is_a?(String)
  window = @scanner.peek(4096)
  return false if window.empty?
  m = pattern.match(window)
  return false unless m && m.begin(0) == 0
  @scanner.pos += m[0].length if cons
  true
end

#peek_byte ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 159

def peek_byte
  @scanner.peek_byte
end

#position ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 151

def position
  @scanner.pos
end

#position=(pos) ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 155

def position=(pos)
  @scanner.pos = pos
end

#read(term = nil) ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 112

def read(term = nil)
end

#read_until(term) ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 115

def read_until(term)
  pattern = Private::PRE_DEFINED_TERM_PATTERNS[term] || /#{Regexp.escape(term)}/
  data = @scanner.scan_until(pattern)
  unless data
    data = @scanner.rest
    @scanner.pos = @scanner.string.bytesize
  end
  data
end

#scan_byte ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 163

def scan_byte
  @scanner.scan_byte
end

#skip_spaces ⇒ Object 



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# File 'lib/compat/opal/rexml/source.rb', line 147

def skip_spaces
  @scanner.skip(Private::SPACES_PATTERN) ? true : false
end