1 files changed, 6 insertions(+), 1 deletions(-)

M src/note.zig

@@ 14,7 14,10 @@ fn escapeAndLower(s: []const u8, allocator: mem.Allocator) !util.CharBuffer {
         return EscapeError.TerminalPeriod;
     }
 
-    var escaped = try util.CharBuffer.initCapacity(allocator, s.len * 2);
+    // Initialize double the length of `s`, covering the pessimal case where
+    // every character of `s` needs escaping.
+    const total_capacity = s.len * 2;
+    var escaped = try util.CharBuffer.initCapacity(allocator, total_capacity);
 
     for (s) |char| {
         switch (char) {


@@ 26,6 29,8 @@ fn escapeAndLower(s: []const u8, allocator: mem.Allocator) !util.CharBuffer {
         const lower_char = std.ascii.toLower(char);
         escaped.appendAssumeCapacity(lower_char);
     }
+    // Free the extra head room allocated for unneeded escape chars.
+    escaped.shrinkAndFree(escaped.items.len);
 
     return escaped;
 }