From 54b7109172bbe36a6702b3844913d715d65ebe9c Mon Sep 17 00:00:00 2001
From: Sutou Kouhei <kou@clear-code.com>
Date: Thu, 25 May 2023 11:29:15 +0900
Subject: [PATCH] xpath: fix a bug that #abbreviate can't handle function
 arguments

GitHub: fix GH-95

Reported by pulver. Thanks!!!
---
 lib/rexml/parsers/xpathparser.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/rexml/parsers/xpathparser.rb b/lib/rexml/parsers/xpathparser.rb
index d92678fe..afff85ce 100644
--- a/lib/rexml/parsers/xpathparser.rb
+++ b/lib/rexml/parsers/xpathparser.rb
@@ -170,7 +170,10 @@ def predicate_to_string( path, &block )
           name = path.shift
           string << name
           string << "( "
-          string << predicate_to_string( path.shift, &block )
+          path.shift.each_with_index do |argument, i|
+            string << ", " if i > 0
+            string << predicate_to_string(argument, &block)
+          end
           string << " )"
         when :literal
           path.shift