Add spaces in self-closing XML tags.

[homepage.git] / lib / xhtml-compat.rb

diff --git a/lib/xhtml-compat.rb b/lib/xhtml-compat.rb
new file mode 100644 (file)
index 0000000..f69c1ee
--- /dev/null
+++ b/lib/xhtml-compat.rb
@@ -0,0 +1,25 @@
+# Nick's web site: xhtml_compat filter.  Add whitespace before the end
+# of empty element tags to improve compatibility with old browsers.
+#
+# Copyright © 2020 Nick Bowler
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+class XhtmlCompatFilter < Nanoc::Filter
+    identifier :xhtml_compat
+
+    def run(content, params = {})
+        return content.gsub(/([^[:space:]])\/>/m, '\1 />');
+    end
+end