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  • Nice and well explained ++ Commented Aug 2, 2016 at 15:20
  • Can be shortened (with recent perl) to: perl -pe 's/".*?"/$&=~s: +:,:gr/ge' (the r flag being the recent addition) Commented Aug 2, 2016 at 15:22
  • @StéphaneChazelas Thanks, that simplifies these constructions quite a lot. Commented Aug 2, 2016 at 15:27