Class: Fontisan::Ufo::Info

Inherits:
Object
  • Object
show all
Defined in:
lib/fontisan/ufo/info.rb

Overview

Typed wrapper around a UFO's fontinfo.plist. Provides accessor methods for every standard UFO 3 field, with sensible defaults when reading a UFO that omits some fields.

Field naming follows UFO 3 (camelCase in the plist, snake_case in Ruby). Fields are looked up case-insensitively on read.

Constant Summary collapse

STANDARD_FIELDS =

Convenience: standard fields. Add to this list as new compiler needs arise; serialization walks all known fields.

%i[
  family_name style_name version_major version_minor units_per_em
  ascender descender cap_height x_height italic_angle
  postscript_font_name postscript_full_name postscript_weight_name
  copyright created modified note
  open_type_head_created open_type_head_flags
  open_type_hhea_ascender open_type_hhea_descender
  open_type_hhea_line_gap open_type_name_records
  open_type_os2_weight_class open_type_os2_width_class
  open_type_vhea_ascender open_type_vhea_descender open_type_vhea_line_gap
  year_month_day_time_seconds_since_epoch
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(values = {}) ⇒ Info

Returns a new instance of Info.



32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/fontisan/ufo/info.rb', line 32

def initialize(values = {})
  @extras = {}
  values.each do |key, value|
    attr = camel_to_snake(key.to_s).to_sym
    if STANDARD_FIELDS.include?(attr)
      public_send("#{attr}=", value)
    else
      @extras[key.to_s] = value
    end
  end
end

Instance Attribute Details

#extras ⇒ Object

Catch-all for non-standard (vendor-specific) fields.



30
31
32
 
# File 'lib/fontisan/ufo/info.rb', line 30

def extras
  @extras
end

Instance Method Details

#to_plist ⇒ Hash

Returns a Hash<String, Object> suitable for emit() to serialize back to plist. Keys are in camelCase per UFO 3.

Returns:

  • (Hash) —

    a Hash<String, Object> suitable for emit() to serialize back to plist. Keys are in camelCase per UFO 3.



46
47
48
49
50
51
52
53
54
 
# File 'lib/fontisan/ufo/info.rb', line 46

def to_plist
  h = {}
  STANDARD_FIELDS.each do |attr|
    value = public_send(attr)
    h[snake_to_camel(attr.to_s)] = value unless value.nil?
  end
  @extras.each { |k, v| h[k] = v }
  h
end