Class: Fontisan::Binary::TableDirectoryEntry

Inherits:

BaseRecord

• Object
• BinData::Record
• BaseRecord
• Fontisan::Binary::TableDirectoryEntry

Defined in:

lib/fontisan/binary/structures.rb

Overview

OpenType Table Directory Entry

Each entry describes one table in the font file.

Structure:

• char: tag (table identifier)
• uint32: checksum (checksum for this table)
• uint32: offset (byte offset from beginning of font file)
• uint32: table_length (length of table in bytes)

Instance Method Summary

• #tag?(other_tag) ⇒ Boolean

  Check if this entry has a specific tag.

• #tag_object ⇒ Parsers::Tag

  Convert tag to Tag object for comparison.

Methods inherited from BaseRecord

#raw_data, read, #valid?

Instance Method Details

#tag?(other_tag) ⇒ Boolean

Check if this entry has a specific tag

Parameters:

• other_tag (String, Parsers::Tag) —

  Tag to compare

Returns:

• (Boolean) —

  True if tags match

# File 'lib/fontisan/binary/structures.rb', line 77

def tag?(other_tag)
  tag_object == (other_tag.is_a?(Parsers::Tag) ? other_tag : Parsers::Tag.new(other_tag))
end

#tag_object ⇒ Parsers::Tag

Convert tag to Tag object for comparison

Returns:

• (Parsers::Tag) —

  Tag object

# File 'lib/fontisan/binary/structures.rb', line 69

def tag_object
  Parsers::Tag.new(tag)
end