Add bin and edit workflow

bin/gems/ttfunk-1.8.0/lib/ttfunk/table/post/format20.rb

@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require_relative 'format10'
+require 'stringio'
+
+module TTFunk
+  class Table
+    class Post
+      # Version 2.0 is used for fonts that use glyph names that are not in the
+      # set of Macintosh glyph names. A given font may map some of its glyphs to
+      # the standard Macintosh glyph names, and some to its own custom names.
+      # A version 2.0 `post` table can be used in fonts with TrueType or CFF
+      # version 2 outlines.
+      module Format20
+        include Format10
+
+        # Get glyph name for character code.
+        #
+        # @param code [Integer]
+        # @return [String]
+        def glyph_for(code)
+          index = @glyph_name_index[code]
+          return '.notdef' unless index
+
+          if index <= 257
+            POSTSCRIPT_GLYPHS[index]
+          else
+            @names[index - 258] || '.notdef'
+          end
+        end
+
+        private
+
+        def parse_format!
+          number_of_glyphs = read(2, 'n').first
+          @glyph_name_index = read(number_of_glyphs * 2, 'n*')
+          @names = []
+
+          strings = StringIO.new(io.read(offset + length - io.pos))
+          until strings.eof?
+            length = strings.read(1).unpack1('C')
+            @names << strings.read(length)
+          end
+        end
+      end
+    end
+  end
+end