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 · 119v

Facsimile

Tunc enim non solum si aliqua ex maleficis postea ascenderit post luminaria ascenderit sed etiam si ante et ipsa sit angularis, sufficiens est ad disponendum aliquid propositorum, qualem utique horizo loca horizontis ac signorum lesionem aut passionem ostenderint, stellarumque naturae male afficientiur et male affectarum et earum, que cum ipsis figurantur. Nam et partes cuiuslibet signorum que partem horizontis male affectam continent corporis partem circa quam erit causa manifestabunt, et utrum lesionem an passionem aut utrunque ipse ipsa pars cognita suscipere possit, stellarum quoque nature accidentium species et causas operantur.