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version 2.109.0

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Function std.string.lineSplitter

Split an array or slicable range of characters into a range of lines using '\r', '\n', '\v', '\f', "\r\n", lineSep, paraSep and '\u0085' (NEL) as delimiters. If keepTerm is set to Yes.keepTerminator, then the delimiter is included in the slices returned.

auto lineSplitter(Flag!("keepTerminator") keepTerm = No.keepTerminator, Range) (
  Range r
)
if (hasSlicing!Range && hasLength!Range && isSomeChar!(ElementType!Range) && !isSomeString!Range);

auto lineSplitter(Flag!("keepTerminator") keepTerm = No.keepTerminator, C) (
  C[] r
)
if (isSomeChar!C);

Does not throw on invalid UTF; such is simply passed unchanged to the output.

Adheres to Unicode 7.0.

Does not allocate memory.

Parameters

NameDescription
r array of chars, wchars, or dchars or a slicable range
keepTerm whether delimiter is included or not in the results

Returns

range of slices of the input range r

See Also

splitLines std.algorithm.splitter splitter

Example

import std.array : array;

string s = "Hello\nmy\rname\nis";

/* notice the call to 'array' to turn the lazy range created by
lineSplitter comparable to the string[] created by splitLines.
*/
writeln(lineSplitter(s).array); // splitLines(s)

Example

auto s = "\rpeter\n\rpaul\r\njerry\u2028ice\u2029cream\n\nsunday\nmon\u2030day\n";
auto lines = s.lineSplitter();
static immutable witness = ["", "peter", "", "paul", "jerry", "ice", "cream", "", "sunday", "mon\u2030day"];
uint i;
foreach (line; lines)
{
    writeln(line); // witness[i++]
}
writeln(i); // witness.length

Authors

Walter Bright, Andrei Alexandrescu, Jonathan M Davis, and David L. 'SpottedTiger' Davis

License

Boost License 1.0.