73 lines
2.3 KiB
Zig
73 lines
2.3 KiB
Zig
const std = @import("std");
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const expect = std.testing.expect;
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const print = std.debug.print;
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const getenv = std.posix.getenv;
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pub fn main() !void {
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//const buffer: [:0]u8 = undefined;
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std.debug.print("Hello, {s}\n", .{"World"});
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try createFile();
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if (getenv("TERM")) |buf| {
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const buffer = buf;
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_ = buffer;
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print("Buffer:{s}\n", .{buf});
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const slice = getNum("123dsfiauf_123_45t63sadf9875,231,1");
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//_ = slice;
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print("number1: {d}", .{slice[0]});
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//for (slice) |num| {
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// print("extracted number:\n{d}\n", .{num});
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//}
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} else {
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print("Error getenv\n", .{});
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}
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}
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fn getNum(str1: []const u8) []u64 {
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//_ = str1;
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var pos: u64 = 0;
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var num = std.mem.zeroes([64]u64);
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var num_res = std.mem.zeroes([64]u64);
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var it: u64 = 0;
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for (str1, 0..) |elem, it2| {
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// print("Elem: {} ", .{elem});
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if (elem >= 48 and elem <= 57) { //is ascii number
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num[pos] = @intCast(elem - 48);
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pos += 1;
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}
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if ((elem < 48 or elem > 57) or it2 == (str1.len - 1)) { //add case when if last element create te int
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if (pos != 0) {
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for (0..pos) |i| {
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if (i < pos - 1) {
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num_res[it] = num_res[it] + num[i] * (std.math.pow(u64, 10, (pos - i - 1)));
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} else {
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num_res[it] = num_res[it] + num[i];
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}
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}
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print("numres:{}={}\n", .{ it, num_res[it] });
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pos = 0;
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it += 1;
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}
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}
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}
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return &num_res;
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}
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fn createFile() !void {
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const file = try std.fs.cwd().openFile("junk-file.txt", .{});
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defer file.close();
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// const bytes_written = try file.writeAll("hello world!");
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// //_ = bytes_written;
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// std.debug.print("files written:{any}, {any}", .{ bytes_written, @TypeOf(bytes_written) });
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var buffer: [100]u8 = undefined;
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try file.seekTo(0);
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const bytes_read = try file.readAll(&buffer);
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print("buffer: {s} check: {s}\n", .{ buffer[0..bytes_read], "hello world!" });
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if (std.mem.eql(u8, buffer[0 .. bytes_read - 1], "hello world!") == true) {
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print("equal\n", .{});
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} else {
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print("not equal\n", .{});
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}
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}
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