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 · 15r

Facsimile

Luna vero plurimum habetsue potestatis excire in humectando eo videlicet quod terre sit vicina et propter humiditatum evaporationem quodque corpora sic plane afficit maturans plurima atque putrefaciens; participat autem nonnihil in calefaciendo propter illuminationes quas a Sole mutuatur.