If you want to escape quotes oustide of quoted strings, change

   ( # $2
      [^\s"']+                  # Something to prefix.
   )

[download]

to

   ( # $2
      (?:[^\s"'\\]|\\.)+        # Something to prefix. 
   )

[download]

In reply to Re^3: How to Modify Only Non-Quoted Words? by ikegami
in thread How to Modify Only Non-Quoted Words? by ventolin

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