" LIBRARY:
"#\ "
-syn match factorEscape /\\\([\\stnr0e\"]\|u\x\{6}\|u{\S\+}\)/ contained display
+syn match factorEscape /\\\([\\astnr0e\"]\|u\x\{6}\|u{\S\+}\|x\x\{2}\)/ contained display
syn region factorString start=/\<"/ skip=/\\"/ end=/"/ contains=factorEscape
syn region factorTriString start=/\<"""/ skip=/\\"/ end=/"""/ contains=factorEscape
syn region factorSbuf start=/\<[-a-zA-Z0-9]\+"\>/ skip=/\\"/ end=/"/
" LIBRARY:
"#\ "
-syn match factorEscape /\\\([\\stnr0e\"]\|u\x\{6}\|u{\S\+}\)/ contained display
+syn match factorEscape /\\\([\\astnr0e\"]\|u\x\{6}\|u{\S\+}\|x\x\{2}\)/ contained display
syn region factorString start=/\<"/ skip=/\\"/ end=/"/ contains=factorEscape
syn region factorTriString start=/\<"""/ skip=/\\"/ end=/"""/ contains=factorEscape
syn region factorSbuf start=/\<[-a-zA-Z0-9]\+"\>/ skip=/\\"/ end=/"/