From 8b07e23975bc0eeafff5116d1c96996d645ea789 Mon Sep 17 00:00:00 2001
From: uji <ujiprog@gmail.com>
Date: Sat, 11 Mar 2023 17:29:45 +0900
Subject: [PATCH] docs/grammer: Fix the writing of unicodeStringLiteral rules.

UnicodeStringLiteral rules can be written with a common prefix.
(like HexString https://github.com/ethereum/solidity/blob/ef6ff2f05550e4386f2fec7753a44fe39a124488/docs/grammar/SolidityLexer.g4#L213)
---
 docs/grammar/SolidityLexer.g4 | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/docs/grammar/SolidityLexer.g4 b/docs/grammar/SolidityLexer.g4
index b0dfca0c4..e1d0da6a9 100644
--- a/docs/grammar/SolidityLexer.g4
+++ b/docs/grammar/SolidityLexer.g4
@@ -198,9 +198,7 @@ fragment EscapeSequence:
 /**
  * A single quoted string literal allowing arbitrary unicode characters.
  */
-UnicodeStringLiteral:
-	'unicode"' DoubleQuotedUnicodeStringCharacter* '"'
-	| 'unicode\'' SingleQuotedUnicodeStringCharacter* '\'';
+UnicodeStringLiteral: 'unicode' (('"' DoubleQuotedUnicodeStringCharacter* '"') | ('\'' SingleQuotedUnicodeStringCharacter* '\''));
 //@doc:inline
 fragment DoubleQuotedUnicodeStringCharacter: ~["\r\n\\] | EscapeSequence;
 //@doc:inline