How does one read file line by line / upto a specific delimeter of an MmFile?

[H. S. Teoh]

On Sat, Mar 14, 2020 at 10:37:37PM +0000, Adnan via Digitalmars-d-learn wrote:
> https://dlang.org/library/std/mmfile/mm_file.html doesn't seem to
> specify anything similar to lines() or byLine() or byLineCopy() etc.

That's because a memory-mapped file appears directly in your program's
memory address space as if it was an array of bytes (ubyte[]).  No
interpretation is imposed upon the contents.  If you want lines out of
it, try casting the memory to const(char)[] and using
std.algorithm.splitter to get a range of lines. For example:

	auto mmfile = new MmFile("myfile.txt");
	auto data = cast(const(char)[]) mmfile[];
	auto lines = data.splitter("\n");
	foreach (line; lines) {
		...
	}


T

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