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Function std.encoding.codePoints
Returns a foreachable struct which can bidirectionally iterate over all code points in a string.
CodePoints!E codePoints(E)
(
immutable(E)[] s
);
The input to this function MUST be validly encoded. This is enforced by the function's in-contract.
You can foreach either with or without an index. If an index is specified, it will be initialized at each iteration with the offset into the string at which the code point begins.
Supersedes
This function supersedes std.utf.decode().
Standards
Unicode 5.0, ASCII, ISO-8859-1, ISO-8859-2, WINDOWS-1250, WINDOWS-1251, WINDOWS-1252
Parameters
Name | Description |
---|---|
s | the string to be decoded |
Example
string s = "hello world";
foreach (c;codePoints(s))
{
// do something with c (which will always be a dchar)
}
Note that, currently, foreach (c:codePoints(s)) is superior to foreach (c;s) in that the latter will fall over on encountering U+FFFF.
Example
string s = "hello";
string t;
foreach (c;codePoints(s))
{
t ~= cast(char) c;
}
writeln(s); // t
Authors
Janice Caron
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.