On Saturday, 7 October 2023 at 07:31:45 UTC, mw wrote:
https://stackoverflow.com/questions/47046850/is-there-any-way-to-assign-multiple-variable-at-once-with-dlang
How to do this Python code in D:
```
s = "1 2 3"
A,B,C = map(int, s.split(" "))
A,B,C
(1, 2, 3)
```
Is there a better way (since 2017)?
My words to those who come from Python:
If you are making money from Python, please stay there, but if
you want to learn new things and a modern language, "Welcome to D"
and please use Tuples :)
```d
import std.typecons, std.stdio;
struct DICT(C, F, S)
{
S[C] dict;
C[F] freq;
void opAssign(Tuple!(C, F, S) chr) {
dict[chr[0]] = chr[2];
freq[chr[1]] = chr[0];
}
string toString() const
{
import std.array : appender;
import std.algorithm : sort;
import std.format : formattedWrite;
auto r = appender!string;
foreach(f; freq.keys.sort!"a>b") {
auto key = freq[f];
r.formattedWrite("(%c) %s, %.1f\n",
key, dict[key], f);
}
return r.data;
}
}
void main()
{
alias index = char;
alias rank = float;
alias name = string;
alias Dict = DICT!(index, rank, name);
alias chr = Tuple!(index, rank, name);
auto chrs = [ chr(44, 61.3, "Comma"),
chr(34, 26.7, "Doublequote"),
chr(39, 24.3, "Apostrophe"),
chr(45, 15.3, "Hyphen"),
chr(63, 5.6, "Question"),
chr(58, 3.4, "Colon"),
chr(33, 3.3, "Exclamation"),
chr(59, 3.2, "Semicolon")
];
Dict enDict;
foreach(tup; chrs) //multiple insertion
enDict = tup;
writeln("Frequency distributions of punctuation marks used in
English: ");
enDict = chr(46, 65.3, "Dot"); // single insertion
enDict.writeln;
}
```
SDB@79
