From 609df0ff8d2a12bb005344acb91784b3c39d7a48 Mon Sep 17 00:00:00 2001
From: Erik Demaine <edemaine@mit.edu>
Date: Tue, 5 Nov 2024 11:47:14 -0500
Subject: [PATCH] Scientific numeric literals take priority over access

---
 source/parser.hera | 2 +-
 test/numbers.civet | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/parser.hera b/source/parser.hera
index d4f4766e..6d88ee33 100644
--- a/source/parser.hera
+++ b/source/parser.hera
@@ -6029,7 +6029,7 @@ DecimalBigIntegerLiteral
 # https://262.ecma-international.org/#prod-DecimalLiteral
 DecimalLiteral
   # NOTE: Not matching the dot as part of a number if it is followed by a valid JS identifier so that it will match as a property access
-  $( /(?:0|[1-9](?:_[0-9]|[0-9])*)(?=\.(?:\p{ID_Start}|[_$]))/ ) ->
+  $( /(?:0|[1-9](?:_[0-9]|[0-9])*)(?=\.(?:\p{ID_Start}|[_$]))/ ) !( "." ExponentPart ) ->
     // Insert an extra dot to make property access work
     return $1 + "."
   $( /(?:0|[1-9](?:_[0-9]|[0-9])*)(?:\.(?:[0-9](?:_[0-9]|[0-9])*))?/ ExponentPart? )
diff --git a/test/numbers.civet b/test/numbers.civet
index 14ddc88a..ffa790d3 100644
--- a/test/numbers.civet
+++ b/test/numbers.civet
@@ -103,10 +103,14 @@ describe "numbers", ->
     x = 1e2
     y = 1e-2
     z = 1e+2
+    w = 1.e2
+    n = 1.e-2
     ---
     x = 1e2
     y = 1e-2
     z = 1e+2
+    w = 1.e2
+    n = 1.e-2
   """
 
   testCase """