This is a BASH script, which can perform an operation on a large number of SFD files and compare its output to the reference FontForge version.

Specifically, for each SFD file in the list the following actions are performed:

1. Call /usr/local/bin/fontforge with some script and keep the output
2. Call a development version of fontforge with the same script and keep the output separately
3. Compare the outputs byte-to-byte and report failure if they differ.

Type of change

• New feature - regression testing

To verify this script actually works:

1. Go to

   fontforge/fontforge/sfd.c

   Line 7668 in eff88fc

   sf->fullname = copy(val);

   and modify this line to sf->fullname = copyn(val, 23);. This change cuts long font names.
2. Compile the project and run the script
3. Observe some fonts (with longer names) start to fail. For example, Homerton.Medium.Oblique.sfd