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.

l'étoile qui se trouve au cœur du Lion ‘α Leo’

French

References: PH Morelon: I.8:5, 26:19
Translation of:
Arabic: الكوكب الذي على قلب الأسد [PH Morelon: I.8:5, 27:16]