From 9d0e333de2324884fa6f82805b1d6e5b770f859b Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Wed, 11 Jun 2025 20:45:20 -0700
Subject: [PATCH] Fix bug where multiline comments were sometimes not handled

Example test case that was previously handled incorrectly:
```solidity
/*
event InsideAComment()
*/
```
---
 README.md  |  2 +-
 index.html | 22 ++++++++++++++++------
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index ffd4f9e..3004732 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ There is a button to delete all lines in the input code block that do *not* cont
 
 ## Testing
 
-Use [this permalink](https://event-hashes.ardis.lu#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) for testing. The output should be:
+Use [this permalink](https://event-hashes.ardis.lu#H4sIAAAAAAAACq2TPW/bMBCGd/6KGyVBhmC5yeLJTToYaIKiDtAhCAKGvDhExKNAUm7Sov+9OJq25NZAl3qx+T738d6Rbhr4KINR0EsfDG0F7pAibIztOyyk1h5DqA/fg6HYXlyWSyGaBu7eewRy3srO/JDRODrN5uj7h9pQrJEGe/+Q8769mIihlwpBkgZ8i14SuiHAK75/d15D9MZadgOQK3J0gIMhMKTxDTWA9Nt5Dfw5IBgh07YG9gEneiKLEgCW6ZRs3QxdNLPOEELn3OtMvqDUeaLEPhvCvxzsDYix/wS0CaT2E3UBolz+WXcjLd5Ki8VYqR5//iOBO3C0oSjyjq9xpoe+M2p6L9dZweJY7/9I3PErWrfD6W2mmR+j6416rMSaT3d8KKZgflzcs3e2Pklqjyy6/TW2F5ewk92Auel6S84jKGctUgws7e2tKRiNq6s9mLPJpjrL2qJcQtWIpqoEnA9ZcPo+RpzjH5hXTWZfpJc2kzC5T5A1NA1kAvPD03iqoamOcst9MlEcX5TZ00qUaeYr5z2q2L2D4ekNbYEczVIQLx1C9EZFsE6jUI6ilyrCJok3TiP8HP9WR/HTLq0pW+Vx4XkgxY8Hbl1c0ZmAUW9P9LO1W97E+KAByqX49RsAL25KfgQAAA==) for testing. The output should be:
 
 > 15 events found (11 unique)
 > 
diff --git a/index.html b/index.html
index 68ed960..a6e05a7 100644
--- a/index.html
+++ b/index.html
@@ -315,11 +315,20 @@
       return text;
     }
 
-    function trimComments(event) {
-      const i1 = event.indexOf('//');
-      event = i1 === -1 ? event : event.substring(0, i1);
-      const i2 = event.indexOf('/*');
-      event = i2 === -1 ? event : event.substring(0, i2);
+    function trimMultiLineComments(event) {
+      let i1, i2;
+      while (i1 !== -1) {
+        i1 = event.indexOf('/*');
+        i2 = event.indexOf('*/', i1);
+        event = i1 === -1 ? event : `${event.substring(0, i1)}${event.substring(i2 + 2)}`;
+        event = event.trim();
+      }
+      return event;
+    }
+
+    function trimSingleLineComments(event) {
+      const i = event.indexOf('//');
+      event = i === -1 ? event : event.substring(0, i);
       event = event.trim();
       return event;
     }
@@ -360,7 +369,8 @@
     }
 
     function getEvents(code) {
-      code = code.split('\n').map(trimComments).join('\n');
+      code = trimMultiLineComments(code);
+      code = code.split('\n').map(trimSingleLineComments).join('\n');
       originalEvents.length = 0;
       const events = [];
       let position = 0;
-- 
2.47.3