How to write multiline strings in SML?-CodePudding

How can I write a string that spans multiple lines?

I tried to use the line continuation character \ at the end like many other languages, but it does not seem to work. The following:

val s = "line1\
line2";

generates an error:

/tmp/...:1: error: unexpected character l in \ ... \
/tmp/...:1: error: no matching quote found on this line

Not using any line continuation as follows generates a similar error:

val s = "line1
line2";

What's the correct way to write a multiline string?

CodePudding user response：

You have to put the backslash at the beginning of the next lines as well :

print "this is\
\ a string on\
\ 3 lines\n";