Swift has "normal strings", #"raw strings"#, and """ for multiline strings. For interpolation, it uses "The answer is \(1+2)", but in a raw string you need #"The answer is \#(1+2)"#.
So compared to Python, string interpolation is always "on" and doesn't need an f-prefix. Because it uses the string escaping syntax, it doesn't have to take over a regular character like {, which requires {{ escaping.
Is this supposed to be better than python? "Every string is an f-string, make sure you don't accidentally miss some interpolation." sounds like a step down, not like an improvement to me!
There are two errors you could make in Python. Accidentally using {} in a normal string where you wanted interpolation, and accidentally using {} in an f-string where you wanted literal {}. I definitely do the former a lot.
Yes it does, because normal strings aren't just a special case of raw strings when the number of #s is 0. The presence of #s change the string syntax. Otherwise you could as well say Python has one syntax, with optional f and r prefixes.
No, you can't. Because r/f changes and/or adds escape sequences, AND you can't have double-raw strings for example. In Swift there's 0, 1, 2, 3, 4, etc number of #. It's not raw strings at all! There's no -1 number of #. So for example to do regexes in python you normally use r-strings, to avoid \ escaping in the regex. In Swift you could do the same the opposite way: not by removing \ escaping, but by changing it to \#. And if you want to regex match for \#, you can do ##. And if you want to match for \## you can use ###, etc.
There is always a clean escape where you can write the literal that you want to write. Unlike in Python where there is no escape (amusingly).
