Better multiline commands in data packs

instead of having to use a \ at the end of every line, I would prefer it to be like having an indicator to start and end a multiline command. 

Like this, using a \\ to start it and using ; to end it:

\\data merge storage dynamic_damage:config 
 {
     Settings: 

     { 

          function:"default", 

          storage: "dynamic_damage:config", 

          storage_nbt: "Settings", 

          entity:"@s", 

          dmg:1, 

          cause:"generic",  

          x:0, 

          y:0, 

          z:0, 

          source:"@s", 

          source_displacement:"@s" 

     } 

};