+SYNTAX: [[ "]]" parse-multiline-string suffix! ;
+SYNTAX: [=[ "]=]" parse-multiline-string suffix! ;
+SYNTAX: [==[ "]==]" parse-multiline-string suffix! ;
+SYNTAX: [===[ "]===]" parse-multiline-string suffix! ;
+SYNTAX: [====[ "]====]" parse-multiline-string suffix! ;
+SYNTAX: [=====[ "]=====]" parse-multiline-string suffix! ;
+SYNTAX: [======[ "]======]" parse-multiline-string suffix! ;