--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/cli/output_xml.py	Fri Jun 02 14:54:26 2023 +0200
@@ -0,0 +1,90 @@
+#! /usr/bin/env python3
+
+# Libervia CLI frontend
+# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""Standard outputs"""
+
+
+from libervia.cli.constants import Const as C
+from libervia.backend.core.i18n import _
+from lxml import etree
+from libervia.backend.core.log import getLogger
+
+log = getLogger(__name__)
+import sys
+
+try:
+    import pygments
+    from pygments.lexers.html import XmlLexer
+    from pygments.formatters import TerminalFormatter
+except ImportError:
+    pygments = None
+
+
+__outputs__ = ["XML"]
+
+
+class XML(object):
+    """Outputs for XML"""
+
+    def __init__(self, host):
+        self.host = host
+        host.register_output(C.OUTPUT_XML, C.OUTPUT_NAME_XML, self.pretty, default=True)
+        host.register_output(
+            C.OUTPUT_LIST_XML, C.OUTPUT_NAME_XML, self.pretty_list, default=True
+        )
+        host.register_output(C.OUTPUT_XML, C.OUTPUT_NAME_XML_RAW, self.raw)
+        host.register_output(C.OUTPUT_LIST_XML, C.OUTPUT_NAME_XML_RAW, self.list_raw)
+
+    def colorize(self, xml):
+        if pygments is None:
+            self.host.disp(
+                _(
+                    "Pygments is not available, syntax highlighting is not possible. "
+                    "Please install if from http://pygments.org or with pip install "
+                    "pygments"
+                ),
+                error=True,
+            )
+            return xml
+        if not sys.stdout.isatty():
+            return xml
+        lexer = XmlLexer(encoding="utf-8")
+        formatter = TerminalFormatter(bg="dark")
+        return pygments.highlight(xml, lexer, formatter)
+
+    def format(self, data, pretty=True):
+        parser = etree.XMLParser(remove_blank_text=True)
+        tree = etree.fromstring(data, parser)
+        xml = etree.tostring(tree, encoding="unicode", pretty_print=pretty)
+        return self.colorize(xml)
+
+    def format_no_pretty(self, data):
+        return self.format(data, pretty=False)
+
+    def pretty(self, data):
+        self.host.disp(self.format(data))
+
+    def pretty_list(self, data, separator="\n"):
+        list_pretty = list(map(self.format, data))
+        self.host.disp(separator.join(list_pretty))
+
+    def raw(self, data):
+        self.host.disp(self.format_no_pretty(data))
+
+    def list_raw(self, data, separator="\n"):
+        list_no_pretty = list(map(self.format_no_pretty, data))
+        self.host.disp(separator.join(list_no_pretty))