PAL

Ptolemaeus Arabus et Latinus

_ (the underscore) is the placeholder for exactly one character.
% (the percent sign) is the placeholder for no, one or more than one character.
%% (two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

At the beginning and at the end, these placeholders are superfluous.

Work B.1.5

Pseudo-Ptolemy
Centiloquium (‘Iam premisi’ version)

This translation is part of Abuiafar Hamet filii Joseph’s commentary on the Centiloquium in the ‘Iam premisi’ version. See C.3.1.4.