kiloz

commit 89e4e22d67111a3943171460d2b8d24ecac789a9
parent 02eaeb22b7b2af1d7d66046ea6687a6e97d0d552
Author: Martin Ashby <martin@ashbysoft.com>
Date:   Sat, 20 Jan 2024 20:41:29 +0000

Add line number to status bar

Diffstat:
M
src/main.zig
 | 
19
++++++++++++++-----

1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/src/main.zig b/src/main.zig
@@ -363,13 +363,22 @@ fn editorDrawRows(es: *const EditorState, wtr: anytype) !void {
 // wtr should be std.io.writer
 fn editorDrawStatusBar(es: *const EditorState, wtr: anytype) !void {
     try wtr.writeAll("\x1b[7m"); // invert colours
-    var lw = truncateWriter(wtr, es.screencols); // Never write more than we have columns
-    const wtr2 = lw.writer();
+    const buf = try es.a.alloc(u8, es.screencols);
+    defer es.a.free(buf);
+    @memset(buf, ' ');
     const fname = es.filename orelse "<no file>";
-    try std.fmt.format(wtr2, "{s} - {} lines", .{fname, es.erow.len});
-    for (0..es.screencols) |_| {
-        try wtr2.writeByte(' ');
+    _ = std.fmt.bufPrint(buf, "{s} - {} lines", .{fname, es.erow.len}) catch |e| switch (e) {
+        error.NoSpaceLeft => {},
+        else => return e,
+    };
+    const sz = std.fmt.count("{}/{}", .{es.cy+1,es.erow.len});
+    if (buf.len >= sz) {
+        _ = std.fmt.bufPrint(buf[buf.len-sz..], "{}/{}", .{es.cy+1,es.erow.len}) catch |e| switch (e) {
+            error.NoSpaceLeft => {},
+            else => return e,
+        };
     }
+    try wtr.writeAll(buf);
     try wtr.writeAll("\x1b[m"); // normal colours
 }