init

main.zig

@@ -0,0 +1,72 @@
+const std = @import("std");
+const expect = std.testing.expect;
+const print = std.debug.print;
+const getenv = std.posix.getenv;
+
+pub fn main() !void {
+    //const buffer: [:0]u8 = undefined;
+    std.debug.print("Hello, {s}\n", .{"World"});
+    try createFile();
+    if (getenv("TERM")) |buf| {
+        const buffer = buf;
+        _ = buffer;
+        print("Buffer:{s}\n", .{buf});
+
+        const slice = getNum("123dsfiauf_123_45t63sadf9875,231,1");
+        //_ = slice;
+        print("number1: {d}", .{slice[0]});
+        //for (slice) |num| {
+        //    print("extracted number:\n{d}\n", .{num});
+        //}
+    } else {
+        print("Error getenv\n", .{});
+    }
+}
+
+fn getNum(str1: []const u8) []u64 {
+    //_ = str1;
+    var pos: u64 = 0;
+    var num = std.mem.zeroes([64]u64);
+    var num_res = std.mem.zeroes([64]u64);
+    var it: u64 = 0;
+    for (str1, 0..) |elem, it2| {
+        // print("Elem: {} ", .{elem});
+        if (elem >= 48 and elem <= 57) { //is ascii number
+            num[pos] = @intCast(elem - 48);
+            pos += 1;
+        }
+        if ((elem < 48 or elem > 57) or it2 == (str1.len - 1)) { //add case when if last element create te int
+            if (pos != 0) {
+                for (0..pos) |i| {
+                    if (i < pos - 1) {
+                        num_res[it] = num_res[it] + num[i] * (std.math.pow(u64, 10, (pos - i - 1)));
+                    } else {
+                        num_res[it] = num_res[it] + num[i];
+                    }
+                }
+                print("numres:{}={}\n", .{ it, num_res[it] });
+                pos = 0;
+                it += 1;
+            }
+        }
+    }
+    return &num_res;
+}
+fn createFile() !void {
+    const file = try std.fs.cwd().openFile("junk-file.txt", .{});
+    defer file.close();
+
+    //    const bytes_written = try file.writeAll("hello world!");
+    //    //_ = bytes_written;
+    //    std.debug.print("files written:{any}, {any}", .{ bytes_written, @TypeOf(bytes_written) });
+
+    var buffer: [100]u8 = undefined;
+    try file.seekTo(0);
+    const bytes_read = try file.readAll(&buffer);
+    print("buffer: {s} check: {s}\n", .{ buffer[0..bytes_read], "hello world!" });
+    if (std.mem.eql(u8, buffer[0 .. bytes_read - 1], "hello world!") == true) {
+        print("equal\n", .{});
+    } else {
+        print("not equal\n", .{});
+    }
+}