TX to GlyphOrderAndAliasDB

tx2goadb is a small script for stripping raw dump data of the tx tool of AFDKO. This script was created to generate a format as required in GlyphOrderAndAliasDB file for adding OpenType features to a font file.

The AFDKO is a set of tools for building OpenType font files from PostScript and TrueType font data.

Usage

• Make sure you are in the virtual environment of AFDKO:

  • macOS & Linux

      source afdko_env/bin/activate
    

  • Windows

      afdko_env\Scripts\activate.bat
    

• Extract glyphs data from font object

    tx -dump -4 your_font_file.ttf
  

• Copy the output in a text file and name it tx.txt. The format of this file will be like shown below:

glyph[0] {.notdef,0x01}
glyph[1] {.null,U+0000}
glyph[2] {uni000D,U+000D}
glyph[3] {space,U+0020}
glyph[4] {S,U+0053}
...

• From the same source folder, generate 'GlyphOrderAndAliasDB' file by running this script

    tx2goadb.py
  

• A new file named 'GlyphOrderAndAliasDB' will be generated in the same folder. The stripped format will be as shown below:

 .notdef	.notdef	
 .null	.null	 uni0000
 uni000D	uni000D	 uni000D
 space	space	 uni0020
 S	S	 uni0053
 M	M	 uni004D
 g	g	 uni0067

• Use GlyphOrderAndAliasDB, features.fea and other feature files for adding OpenType features to the existing font file using makeotf