As already mentioned I revised my opinion about the last content line, because
the model I summarized mimics perfectly how you’d write text paragraphs.
I’d say most of the time string concatenation is used to combine strings on the
same line. A string literal however should only represent the content between
the delimiters. Including an implicit new line for the last content line might
seem consistent to other content lines from s0 to s(n - 1) (I refer to my gist
here), but it should be consistent to the standard string literal instead.
print("""
foo
foo
""")
That will only print
foo
foo
As expected (I don’t take the new line from print into account). That is the
natural an consistent way.
If you’d need a new line at the end you’ll have natural ways of doing so, or
you can fallback to the explicit \n character.
print("""
foo
foo\n
""")
// Equivalent to the print above this comment, because the backslash
// in the last line only serves precision, but has no effect on the
// implicit new line character, because the last line doesn't add any.
print("""
foo
foo\n\
""")
// Natural text way
print("""
foo
foo
""")
--
Adrian Zubarev
Sent with Airmail
Am 13. April 2017 um 14:35:59, Ricardo Parada ([email protected]) schrieb:
Trailing newline
We need consensus on whether the trailing newline on the last line should be
included. You are proposing it should not be included which will add an empty
line to Brent's xml concatenation example. The example looks better when the
trailing newline is included.
In the more rare case where the newline is not desired on the last line then
you can just include the backslash at the end. See Brent's revised proposal:
https://github.com/johnno1962a/swift-evolution/blob/master/proposals/0168-multi-line-string-literals.md
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