From 1f8c26f25b52d410d126eeeb30f61012094beaaa Mon Sep 17 00:00:00 2001
From: Jean-Michel Vedrine <vedrine@vedrine.org>
Date: Tue, 2 Jan 2018 22:49:42 +0100
Subject: Small fix to the parser and more Behat tests

---
 parser.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'parser.php')

diff --git a/parser.php b/parser.php
index 0b08bb7..766797a 100644
--- a/parser.php
+++ b/parser.php
@@ -1691,7 +1691,7 @@ class qtype_algebra_parser {
                             $i++;
                             continue;
                         } else {
-                            throw new Exception(get_string('missingonearg', 'qtype_algebra', $op));
+                            throw new Exception(get_string('missingonearg', 'qtype_algebra', $tree[$i]->_value));
                         }
                     } else if ($tree[$i]->n_args() == 2) {
                         if ($i > 0 and $i < (count($tree) - 1)) {
@@ -1701,7 +1701,7 @@ class qtype_algebra_parser {
                             array_splice($tree, $i - 1, 1);
                             continue;
                         } else {
-                            throw new Exception(get_string('missingtwoargs', 'qtype_algebra', $op));
+                            throw new Exception(get_string('missingtwoargs', 'qtype_algebra', $tree[$i]->_value));
                         }
                     }
                 } else {
-- 
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