Class: Fontisan::Ucd::RangeEntry

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/fontisan/ucd/range_entry.rb

Overview

Value object representing one row in a run-length-encoded UCD index.

Sorted by first_cp. Entries within a single Index are disjoint (no overlapping ranges).

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(first_cp, last_cp, name) ⇒ RangeEntry

Returns a new instance of RangeEntry.



14
15
16
17
18
 
# File 'lib/fontisan/ucd/range_entry.rb', line 14

def initialize(first_cp, last_cp, name)
  @first_cp = first_cp
  @last_cp = last_cp
  @name = name
end

Instance Attribute Details

#first_cp ⇒ Object (readonly)

Returns the value of attribute first_cp.



12
13
14
 
# File 'lib/fontisan/ucd/range_entry.rb', line 12

def first_cp
  @first_cp
end

#last_cp ⇒ Object (readonly)

Returns the value of attribute last_cp.



12
13
14
 
# File 'lib/fontisan/ucd/range_entry.rb', line 12

def last_cp
  @last_cp
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



12
13
14
 
# File 'lib/fontisan/ucd/range_entry.rb', line 12

def name
  @name
end

Class Method Details

.from_h(hash) ⇒ Object 



49
50
51
52
53
 
# File 'lib/fontisan/ucd/range_entry.rb', line 49

def self.from_h(hash)
  new(hash[:first_cp] || hash["first_cp"],
      hash[:last_cp] || hash["last_cp"],
      hash[:name] || hash["name"])
end

Instance Method Details

#<=>(other) ⇒ Object 



28
29
30
 
# File 'lib/fontisan/ucd/range_entry.rb', line 28

def <=>(other)
  [@first_cp, @last_cp] <=> [other.first_cp, other.last_cp]
end

#==(other) ⇒ Object Also known as: eql? 



32
33
34
35
36
37
 
# File 'lib/fontisan/ucd/range_entry.rb', line 32

def ==(other)
  other.is_a?(RangeEntry) &&
    @first_cp == other.first_cp &&
    @last_cp == other.last_cp &&
    @name == other.name
end

#covers?(codepoint) ⇒ Boolean

Returns:

  • (Boolean) 


20
21
22
 
# File 'lib/fontisan/ucd/range_entry.rb', line 20

def covers?(codepoint)
  codepoint >= @first_cp && codepoint <= @last_cp
end

#hash ⇒ Object 



40
41
42
 
# File 'lib/fontisan/ucd/range_entry.rb', line 40

def hash
  [@first_cp, @last_cp, @name].hash
end

#size ⇒ Object 



24
25
26
 
# File 'lib/fontisan/ucd/range_entry.rb', line 24

def size
  @last_cp - @first_cp + 1
end

#to_h ⇒ Object

Compact YAML-friendly form.



45
46
47
 
# File 'lib/fontisan/ucd/range_entry.rb', line 45

def to_h
  { first_cp: @first_cp, last_cp: @last_cp, name: @name }
end