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 · 74v

Facsimile

⟨II.12⟩ Cap. XII. De particulari signorum natura ad aeris status

Arietis igitur dodecatemorium universaliter quidem propter equinoctialem significationem tonitrua efficit ac grandines. Particulariter autem quo ad magis aut minus ex proprietate fixarum stellarum, que in eo sunt, partes eius precedentes pluviose sunt ac ventose sunt, medie vero temperatae, sequentes autem aestuose ac pestilentes. Partes item eius septentrionales calefacientes sunt et corrumpentes, australes glaciales ac frigidae. Tauri dodecatemorium