From 7ea26a40b765962727571109dd824fbe0b71e0cd Mon Sep 17 00:00:00 2001
From: Brian Mock <brian@mockbrian.com>
Date: Sat, 8 Jul 2017 17:42:34 -0700
Subject: [PATCH] Fixes #189 fixes regexp failure bug

---
 src/parsimmon.js         | 6 +++---
 test/core/regexp.test.js | 6 +++++-
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/parsimmon.js b/src/parsimmon.js
index e0a2b1e..49cd7a9 100644
--- a/src/parsimmon.js
+++ b/src/parsimmon.js
@@ -595,9 +595,9 @@ function regexp(re, group) {
         var groupMatch = match[group];
         return makeSuccess(i + fullMatch.length, groupMatch);
       }
-      return makeFailure(
-        'valid match group (0 to ' + match.length + ') in ' + expected
-      );
+      var message =
+        'valid match group (0 to ' + match.length + ') in ' + expected;
+      return makeFailure(i, message);
     }
     return makeFailure(i, expected);
   });
diff --git a/test/core/regexp.test.js b/test/core/regexp.test.js
index 6697f39..11ce885 100644
--- a/test/core/regexp.test.js
+++ b/test/core/regexp.test.js
@@ -47,7 +47,11 @@ suite('Parsimmon.regexp', function() {
     assert.strictEqual(parser0.parse('a1').value, 'a1');
     assert.strictEqual(parser1.parse('a1').value, 'a');
     assert.strictEqual(parser2.parse('a1').value, '1');
-    assert.strictEqual(parser3.parse('a1').status, false);
+    assert.deepStrictEqual(parser3.parse('a1'), {
+      status: false,
+      expected: ['valid match group (0 to 3) in /(\\w)(\\d)/'],
+      index: {column: 1, line: 1, offset: 0},
+    });
   });
 
 });