From eedce1372bafa55590993037bb5dcf0c80206004 Mon Sep 17 00:00:00 2001
From: Bert Frees <bertfrees@gmail.com>
Date: Wed, 29 Mar 2017 14:08:17 +0200
Subject: [PATCH] Log compilation errors in p:xslt

---
 src/main/java/com/xmlcalabash/library/XSLT.java | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main/java/com/xmlcalabash/library/XSLT.java b/src/main/java/com/xmlcalabash/library/XSLT.java
index 1d632acf..619778b9 100644
--- a/src/main/java/com/xmlcalabash/library/XSLT.java
+++ b/src/main/java/com/xmlcalabash/library/XSLT.java
@@ -24,6 +24,7 @@
 import java.net.URISyntaxException;
 import java.util.Hashtable;
 import java.util.Vector;
+import javax.xml.transform.ErrorListener;
 import javax.xml.transform.Result;
 import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
@@ -207,6 +208,7 @@ public void run() throws SaxonApiException {
         try {
             XsltCompiler compiler = runtime.getProcessor().newXsltCompiler();
             compiler.setSchemaAware(processor.isSchemaAware());
+            compiler.setErrorListener(new LogCompileErrors());
             XsltExecutable exec = compiler.compile(stylesheet.asSource());
             XsltTransformer transformer = exec.load();
 
@@ -420,4 +422,16 @@ public void message(XdmNode content, boolean terminate, javax.xml.transform.Sour
             step.info(step.getNode(), content.toString());
         }
     }
+
+    class LogCompileErrors implements ErrorListener {
+        public void error(TransformerException exception) {
+            logger.error(exception.getMessage());
+        }
+        public void fatalError(TransformerException exception) {
+            logger.error(exception.getMessage());
+        }
+        public void warning(TransformerException exception) {
+            logger.warn(exception.getMessage());
+        }
+    }
 }