specifies editorial practice adopted with respect to punctuation marks in the original. indicates whether or not punctation marks have been retained as content within the text. no punctuation marks have been retained some punctuation marks have been retained all punctuation marks have been retained indicates the positioning of punctuation marks that are associated with marked up text as being encoded within the element surrounding the text or immediately before or after it. punctuation marks found at the start or end of a marked up text component are included within its surrounding element; punctuation marks found at the start or end of a marked up text component appear immediately before or after the surrounding element

All punctuation marks in the source text have been retained and represented using the appropriate Unicode code point. In cases where a punctuation mark and nearby markup convey the same information (for example, a sentence ends with a question mark and is also tagged as s) the punctuation mark is captured as content within the element.

External placement of punctuation:

I would agree with Saint Augustine that “An unjust law is no law at all.”

Internal placement of punctuation:

I would agree with Saint Augustine that “An unjust law is no law at all.”