From ffa153b220bdbb0c502383026f1e694e088cc2bb Mon Sep 17 00:00:00 2001
From: Ryo Nihei <nihei.dev@gmail.com>
Date: Mon, 8 Aug 2022 23:52:46 +0900
Subject: Update README

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'README.md')

diff --git a/README.md b/README.md
index af7d693..9997232 100644
--- a/README.md
+++ b/README.md
@@ -141,6 +141,8 @@ a / b * 100
 
 The test case consists of a description, an input text, and a syntax tree you expect. Each part is separated by the delimiter `---`. The syntax tree is represented by the syntax like an [S-expression](https://en.wikipedia.org/wiki/S-expression).
 
+A text of a token is represented by a string enclosed in `'` or `"`. Within `"..."`, characters can alose be represented by Unicode code points (for instance, `\u{000A}` is LF).
+
 Save the above test case to `test.txt` file and run the following command.
 
 ```sh
-- 
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