From bb53ba0fc1bf72cc36e3039430bfb229cc8c1f83 Mon Sep 17 00:00:00 2001
From: CJ van den Berg <cj@vdbonline.com>
Date: Thu, 27 Nov 2025 16:11:53 +0100
Subject: [PATCH] refactor: add Cursor char_at, char_left/_right,
 test_left/_right functions

---
 src/buffer/Cursor.zig | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/src/buffer/Cursor.zig b/src/buffer/Cursor.zig
index fea7aa0..d288c8d 100644
--- a/src/buffer/Cursor.zig
+++ b/src/buffer/Cursor.zig
@@ -193,10 +193,39 @@ pub fn egc_at(self: *const Self, root: Buffer.Root, metrics: Metrics) error{NotF
     return root.egc_at(self.row, self.col, metrics);
 }
 
+pub fn char_at(self: *const Self, root: Buffer.Root, metrics: Metrics) []const u8 {
+    const char, _, _ = root.egc_at(self.row, self.col, metrics) catch return &.{};
+    return char;
+}
+
+pub fn char_left(self: *const Self, root: Buffer.Root, metrics: Metrics) []const u8 {
+    var tmp = self.*;
+    tmp.move_left(root, metrics) catch return &.{};
+    return tmp.char_at(root, metrics);
+}
+
+pub fn char_right(self: *const Self, root: Buffer.Root, metrics: Metrics) []const u8 {
+    var tmp = self.*;
+    tmp.move_right(root, metrics) catch return &.{};
+    return tmp.char_at(root, metrics);
+}
+
 pub fn test_at(self: *const Self, root: Buffer.Root, pred: *const fn (c: []const u8) bool, metrics: Metrics) bool {
     return root.test_at(pred, self.row, self.col, metrics);
 }
 
+pub fn test_left(self: *const Self, root: Buffer.Root, pred: *const fn (c: []const u8) bool, metrics: Metrics) bool {
+    var tmp = self.*;
+    tmp.move_left(root, metrics) catch return false;
+    return root.test_at(pred, tmp.row, tmp.col, metrics);
+}
+
+pub fn test_right(self: *const Self, root: Buffer.Root, pred: *const fn (c: []const u8) bool, metrics: Metrics) bool {
+    var tmp = self.*;
+    tmp.move_right(root, metrics) catch return false;
+    return root.test_at(pred, tmp.row, tmp.col, metrics);
+}
+
 pub fn write(self: *const Self, writer: *std.Io.Writer) !void {
     try cbor.writeValue(writer, .{
         self.row,