Table 1:
Some of Nunberg’s punctuation interaction rules in English, in priority order. The absorption rules ensure that when there are two adjacent tokens, the “weaker” one is deleted (where the strength ordering is { ?, !, (, ),, } > . >{;, :} > − > ,), except that bracketing tokens such as () and do not absorb tokens outside the material they bracket.
 1. Point Absorption,,↦, ,.↦. -,↦--;↦; ;.↦. 3. Period Absorption.?↦? .!↦!abbv.↦abbv 2. Quote Transposition",↦," ".↦." 4. Bracket Absorptions,)↦)-)↦)  (,↦(,"↦" “,↦“
 1. Point Absorption,,↦, ,.↦. -,↦--;↦; ;.↦. 3. Period Absorption.?↦? .!↦!abbv.↦abbv 2. Quote Transposition",↦," ".↦." 4. Bracket Absorptions,)↦)-)↦)  (,↦(,"↦" “,↦“
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