A small program to filter term rewrite systems (TRSs) by there properties. It takes a list of file names, where each file contains a TRS in the TPDB format, and a number of properties. trsprop then prints all filenames, whose TRSs have all the given properties, to STDOUT.

The main use of trsprop for me is to filter through problems in the COPS database and for testing CSI on different subsets thereof.

trsprop [-f trs-list] [-d trs-directory] [properties..]

The newline separated list of filenames is either supplied by STDIN or as a file using the -f flag. The -d flag sets the directory which contains the TRS files (default is the current directory).

The follow properties can be filtered for:

• shallow
• flat
• ground
• left-ground
• right-ground
• linear
• left-linear
• right-linear
• right-reducible
• erasing
• creating
• expanding
• duplicating
• collapsing
• one-rule
• srs
• amiguous
• orthogonal