From 10c8e439d8c4d2228412cf1ad936742f16098784 Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Sat, 10 Feb 2024 17:20:02 -0800
Subject: [PATCH] Parse multi-line event definitions

---
 README.md  |  1 -
 index.html | 12 ++++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1bbca9e..2a872b7 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,6 @@ This is a minimal web utility to calculate the `keccak256` hashes of the normali
 > [!WARNING]<br>
 > **Known issues:**
 > - This tool won't work with [user-defined value types](https://docs.soliditylang.org/en/latest/types.html#user-defined-value-types). For events that include these types, you must manually convert the user-defined value type into its equivalent primitive type.
-> - This tool won't work with multi-line event definitions. For events that span multiple lines, you must manually collapse the definition into one line.
 
 ## Example
 
diff --git a/index.html b/index.html
index 0197bf8..2707025 100644
--- a/index.html
+++ b/index.html
@@ -270,6 +270,18 @@
           strict = true;
           continue;
         }
+        // Basic lookahead for event definitions that span multiple lines
+        if ((line.match(/\(/g)?.length ?? 0) > (line.match(/\)/g)?.length ?? 0)) {
+          const start = code.indexOf(line);
+          const end = code.indexOf(')', start);
+          const lookaheadLine = code.substring(start, end + 1).replaceAll('\n', '');
+          try {
+            const normalizedEvent = normalizeEvent(lookaheadLine, strict);
+            events.add(normalizedEvent);
+          }
+          catch { }
+          continue;
+        }
         try {
           const normalizedEvent = normalizeEvent(line, strict);
           events.add(normalizedEvent);
-- 
2.47.3