Saxon » SaxonC

When I use the SaxonC HE 12.5 Python API to set a configuration property on the Saxon processor to redirect errors to a file it appears that the file is created but remains empty while errors occur in the console (not sure whether they are going to the error or output console).

Sample Python:

from saxonche import *


xslt1 = '''
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="3.0">

<xsl:mode on-no-match="shallow-cpy"/>

<xsl:template match="/" name="xsl:initil-template">
  <xsl:next-match/>
</xsl:template>

</xsl:stylesheet>
'''

with PySaxonProcessor() as saxon_proc:
    print(saxon_proc.version)

    saxon_proc.set_configuration_property('http://saxon.sf.net/feature/standardErrorOutputFile', 'SaxonCHE12ErrorOutputFile-Test1.txt')

    xslt_processor = saxon_proc.new_xslt30_processor()

    try:
        xslt_executable = xslt_processor.compile_stylesheet(stylesheet_text=xslt1)
    except PySaxonApiError as e:
        print(f'Caught {e}')

Sample output:

SaxonC-HE 12.5 from Saxonica
Caught XTSE0080: Namespace prefix xsl refers to a reserved namespace
XTSE0020: Attribute xsl:mode/@on-no-match must be text-only-copy|shallow-copy|deep-copy|shallow-skip|deep-skip|fail

When I write similar Java code with Saxon HE 12.5 Java the error file is populated with the errors and only my own Javacode writes to the console e.g. the program

package org.example;

import net.sf.saxon.lib.Feature;
import net.sf.saxon.s9api.*;

import javax.xml.transform.stream.StreamSource;
import java.io.StringReader;

public class Main {
    public static void main(String[] args) {

        String xslt1 = "<xsl:stylesheet xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\" version=\"3.0\">\n" +
                "\n" +
                "<xsl:mode on-no-match=\"shallow-cpy\"/>\n" +
                "\n" +
                "<xsl:template match=\"/\" name=\"xsl:initil-template\">\n" +
                "  <xsl:next-match/>\n" +
                "</xsl:template>\n" +
                "\n" +
                "</xsl:stylesheet>";


        Processor processor = new Processor();

        processor.setConfigurationProperty(Feature.STANDARD_ERROR_OUTPUT_FILE, "SaxonHE12JavaErrorOutputTest1.text");

        XsltCompiler xsltCompiler = processor.newXsltCompiler();

        try {
            XsltExecutable executable = xsltCompiler.compile(new StreamSource(new StringReader(xslt1)));
        } catch (SaxonApiException e) {
            System.out.println("Compilation failed: " + e.getMessage());
        }
    }
}

outputs

Compilation failed: Errors were reported during stylesheet compilation

with the file containing

Error at xsl:template on line 5 column 52 
  XTSE0080  Namespace prefix xsl refers to a reserved namespace
Error in xsl:mode/@on-no-match on line 3 column 38 
  XTSE0020  Attribute xsl:mode/@on-no-match must be
  text-only-copy|shallow-copy|deep-copy|shallow-skip|deep-skip|fail``