xpunctuate – Process trailing punctuation which may be redundant

The pack­age pro­vides com­mands that en­able the user (or pack­age writer) to in­sert punc­tu­a­tion af­ter the macro. The method is sim­i­lar to that of xs­pace, but goes fur­ther.
The pack­age pro­vides the com­mands \xpe­riod, \xcomma and \xpe­ri­od­comma, which fol­low a sim­i­lar pro­ce­dure to that of \xs­pace, and in­sert punc­tu­a­tion if and only if it is nec­es­sary.