Strings can be concatenated using @samp{+}, so that @samp{"a" + 'b' +
'c'} is equivalent to @samp{'abc'}. Concatenation is useful for
-splitting a single string across multiple source lines. The maximum
-length of a string, after concatenation, is 255 characters.
+splitting a single string across multiple source lines.
Strings may also be expressed as hexadecimal, octal, or binary
character values by prefixing the initial quote character by @samp{X},