I was browsing an XEDIT macro written in REXX and noticed a statement that 
looked like this:

'EXTRACT some values to extract'    /* A COMMENT */  .  

The period appears to be an accident caused by its being to the right of the 
display when the statement was edited. 

For some reason, the period following the comment is not flagged as a syntax 
error. The EXTRACT works as an error free statement. If I compile the macro, 
the compiler also passes the statement without error. Replacing the period with 
a question mark or any other special character that I have tried does cause an 
error. Is this working properly? Is there something in the specification that 
makes the period a legitimate part of the syntax?

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