ttdebug - Man Page
a TrueType bytecode debugger
Synopsis
ttdebug [options] index size font
Description
ttdebug is an interactive TrueType bytecode debugger working in a terminal. Its spartanic interface faintly resembles debuggers like gdb.
For the specified font, a glyph with the given index and size is loaded, making it possible to trace the bytecode execution step by step.
This program is part of the FreeType demos package.
Options
- -I ver
Use TrueType interpreter version ver. Available versions are depending on compilation options of FreeType; call ttdebug without an argument to get the actual list.
- -f face_index
To access member font face_index (default zero) in TTCs.
- -d "axis1 axis2 ..."
Specify the design coordinates for each variation axis at start-up.
- -v
Show version.
Info
September 2025 FreeType 2.14.1