src/main.zig


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const std = @import("std");

// const GraphemeIterator = @import("ziglyph").GraphemeIterator;
// const GraphemeIterator = @import("Grapheme").GraphemeIterator;
// const codePointWidth = @import("ziglyph").display_width.codePointWidth;
// const codePointWidth = @import("display_width").codePointWidth;
// const strWidth = @import("ziglyph").display_width.strWidth;
// const strWidth = @import("display_width").strWidth;
// const CodePointIterator = @import("CodePoint").CodePointIterator;
// const ascii = @import("ascii");
const ascii = std.ascii;

pub fn main() !void {
    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
    defer _ = gpa.deinit();
    const allocator = gpa.allocator();

    const input = try std.fs.cwd().readFileAlloc(allocator, "lang_mix.txt", std.math.maxInt(u32));
    defer allocator.free(input);

    // var iter = GraphemeIterator.init(input);
    // var iter = CodePointIterator{ .bytes = input };
    // var iter = std.mem.splitScalar(u8, input, '\n');

    var buf: [1024 * 1024 * 5]u8 = undefined;
    var result: usize = 0;
    // var result: isize = 0;
    var timer = try std.time.Timer.start();

    // while (iter.next()) |cp| result += codePointWidth(@intCast(cp.code));
    // while (iter.next()) |_| result += 1;
    // while (iter.next()) |line| result += strWidth(line);
    const out = ascii.upperString(&buf, input);
    result += out.len;

    // std.debug.print("result: {}, took: {}\n", .{ result, timer.lap() / std.time.ns_per_ms });
    std.debug.print("result: {}, took: {}, s: {s}\n", .{ result, timer.lap(), out[0..16] });
}