ardupilot/Tools/autotest/logger_metadata/emit_xml.py

50 lines
2.0 KiB
Python

from __future__ import print_function
from lxml import etree
import emitter
class XMLEmitter(emitter.Emitter):
def preface(self):
return """<?xml version="1.0" encoding="utf-8"?>
<!-- Dynamically generated list of documented logfile messages (generated by parse.py) -->
"""
def postface(self):
return
def start(self):
self.logname = "LogMessages.xml"
self.fh = open("LogMessages.xml", mode='w')
print(self.preface(), file=self.fh)
self.loggermessagefile = etree.Element('loggermessagefile')
def emit(self, doccos, enumerations):
self.start()
for docco in doccos:
xml_logformat = etree.SubElement(self.loggermessagefile, 'logformat', name=docco.name)
if docco.url is not None:
xml_url = etree.SubElement(xml_logformat, 'url')
xml_url.text = docco.url
if docco.description is not None:
xml_description = etree.SubElement(xml_logformat, 'description')
xml_description.text = docco.description
xml_fields = etree.SubElement(xml_logformat, 'fields')
for f in docco.fields_order:
xml_field = etree.SubElement(xml_fields, 'field', name=f)
if "description" in docco.fields[f]:
xml_description2 = etree.SubElement(xml_field, 'description')
xml_description2.text = docco.fields[f]["description"]
if "bits" in docco.fields[f]:
xml_bits = etree.SubElement(xml_field, 'bits')
xml_bits.text = docco.fields[f]["bits"]
if xml_fields.text is None and not len(xml_fields):
xml_fields.text = '\n' # add </param> on next line in case of empty element.
self.stop()
def stop(self):
# etree.indent(self.loggermessagefile) # not available on thor, Ubuntu 16.04
pretty_xml = etree.tostring(self.loggermessagefile, pretty_print=True, encoding='unicode')
self.fh.write(pretty_xml)
self.fh.close()