Back of 'config' sourcing implemented, look at TODO in src/main.zig

src/conf.zig

@@ -4,8 +4,32 @@
 // MIT licensed. The MIT license requires this copyright notice to be
 // included in all copies and substantial portions of the software.
 //! Values and types used by different files and that don't fit in any.
+//! Read /etc/kble.conf and execute content.
 /// Number passed to commands.
+const std = @import("std");
+
 pub const arg_type: type = u16;
 pub const mouse_enabled: bool = true;
 pub const mouse_left_btn: c_int = 0;
 pub const mouse_right_btn: c_int = 1;
+
+/// Read /etc/kble.conf and execute all bytes as keypresses.
+pub fn source_config() void {
+    // Open file in read mode.
+    const file: std.fs.File = std.fs.openFileAbsolute("/etc/kble.conf", std.fs.File.OpenFlags{
+        .read = true,
+        .write = false,
+    }) catch {
+        std.log.err("Can't open /etc/kble.conf", .{});
+        return;
+    };
+    // Get reader.
+    const reader: std.fs.File.Reader = file.reader();
+    // Read all bytes.
+    while (true) {
+        const byte: u8 = reader.readByte() catch {
+            break;
+        };
+        std.log.info("{}", .{byte});
+    }
+}

src/main.zig

@@ -89,6 +89,9 @@ pub fn main() void {
     bindings['v'] = &ActionsDef.mode_rectangle;
     bindings['c'] = &ActionsDef.mode_camera;
 
+    // Load config.
+    conf.source_config();
+
     // Create input buffer.
     const input_buffer_len = 255;
     var input_buffer: [input_buffer_len]u32 = undefined;
@@ -135,6 +138,7 @@ pub fn main() void {
             else
                 0;
 
+            // TODO: move everything from this to a function (for config and macros support).
             const action: actions.Action = bindings[key].*;
             const apply_selection: bool = (mode == Mode.select);
 
@@ -161,8 +165,11 @@ pub fn main() void {
                     }
                     cursor_before = cursor; // Save position before selection.
                     mode = action.next_mode;
+                    if (mode == Mode.select) // Select first tile.
+                        level.select_cell(cursor, true);
                 },
             }
+            // TODO end
         }
 
         // Mouse operations.