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.

Isaac Argyros, 〈Paraphrasis in Anonymum commentum in Quadripartitum〉

Madrid, UC-BH, cod. 122 · 10r

Facsimile

Primum enim considerare oportet quod ea etiam que necessario eventura sunt, si inexpectata provenerint terrores ingeruntperturbationes stuporem afferentes et gaudia mentem alienantia maxime nata sunt facere, precognoscere autem illa, assuefacit et