attemps from before

2020/day2/day2.zig

@@ -0,0 +1,73 @@
+const std = @import("std");
+
+
+pub fn main() anyerror!void{
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+
+    const allocator = &arena.allocator;
+
+    //format:
+        //[d-d] [c]: [password]
+    //[minamount [sperator] maxamount] [character]: [password]
+
+    var file = try std.fs.cwd().openFile("input2", .{});
+    defer file.close();
+
+    const file_size:u64 = try file.getEndPos();
+    std.debug.print("{0} \n", .{file_size});
+    
+    //var buffer = try allocator.alloc(u8, file_size);
+    //var reader = file.reader();
+    
+    //var size = try reader.read(buffer);
+
+    //std.debug.print("{0} \n", .{buffer});
+    try file.seekTo(0);
+
+    const contents = try file.reader().readAllAlloc(
+        allocator,
+        file_size
+    );
+    defer allocator.free(contents);
+
+    // const passBuffer = try allocator.alloc(u8, 40); //get a 40 char buffer
+    // defer allocator.free(passBuffer);
+
+    const ArrayList = std.ArrayList;
+    var list = ArrayList(u8).init(allocator);
+    defer list.deinit();
+
+    for(contents)|char,index|{
+        if(char == 12){
+            std.debug.print("\n", .{});
+            //end of line, so clear everything
+
+            continue;
+        }
+        if(char == 45){
+            //current char is (-), so we take the input so far
+            //and set it as the min
+            for(list)|didget|{
+                
+            }
+        }
+
+        list.append(char);
+
+        //put byte in buffer
+        //is current byte a dash (-)?
+            //yes, then this is min
+        //read untill space
+            //from (-) until the space, is the max
+
+        std.debug.print("{c}", .{char});
+
+    }
+}
+
+pub fn isPassValid(char:u8, amountMin:i32, amountMax:i32, input: []u8 )bool{
+    //in here check if password is valid
+    return false;
+
+}