CTAN has a new package: xpunctuate

[CTAN Announcements]

On Wed, 23 May 2012 Philip G. Ratcliffe submitted the 

  xpunctuate

package.


Summary description: An extension of the "xspace" package to include possibly redundant periods and commas.
License type: lppl

Announcement text: 
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This package affords the user or package writer post-macro punctuation 
insertion, \emph{i.e.}, beyond (but similar to) that of the "xspace" package. 
Three new commands are defined: \xperiod, \xcomma and \xperiodcomma, which, 
following a similar procedure to the standard \xspace macro, are designed to 
insert the relevant punctuation \emph{if and only if} necessary. 

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This package is located at 
   http://mirror.ctan.org/macros/latex/contrib/xpunctuate
.  More information is at
   http://www.ctan.org/pkg/xpunctuate
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .

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Thanks for the upload.

For the CTAN Team
  Rainer Schöpf