linter.md

This is no longer maintained. Please check my fork.

I wanted SublimeLinter to automatically validate XML against XSD, but this AFAIK isn’t possible so I made a wrapper for xmllint utility to find XSD file in source code and pass it as argument to xmllint. Because XSD paths can be relative I had to change xml.py to use INPUT_METHOD_FILE (@ instead od -) so I could detect file path. Currently the wrapper is quite stupid but it can be changed when I come across something that doesn’t work.

Tested with SublimeLinter3, libxml version 20902 and Python 3.4.3

Save xmllintschema to ~/bin directory (or another directory on path) and set executable bit (chmod +x xmllintschema).

1. Click Preferences → Browse Packages → SublimeLinter-xmllint, open linter.py

2. Replace xmllint --noout * - with xmllintschema --noout * @

Known problems

• Only works properly when lint mode is set to Save Only due to INPUT_METHOD_FILE.
• If you get following error in console, try setting absolute path in linter.py.

  SublimeLinter: ERROR: xmllint cannot locate 'xmllintschema'

xmllintschema

#!/usr/bin/env python
import os
import sys
import re
import subprocess

schema = None
schemaline = -1
i = 0

with open(sys.argv[-1], 'r') as f:
	for line in f:
		i += 1
		match = re.match(r'.* xsi:noNamespaceSchemaLocation="([^"]+)".*', line)
		if match:
			schema = match.group(1)
			schemaline = i

if schema is not None:
	online = schema.find('http://') == 0 or schema.find('https://') == 0
	if not (online or os.path.isabs(schema)):
		schema = os.path.dirname(sys.argv[-1]) + '/' + schema

	if not online and not os.path.isfile(schema):
		print('-:' + str(schemaline) + ': Schema file does not exist', file=sys.stderr)
		sys.exit()

	args = ['xmllint', '--schema', schema]
	args.extend(sys.argv[1:])
else:
	args = ['xmllint']
	args.extend(sys.argv[1:])

process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
result = process.communicate()[0].decode('utf-8')

if result.find('Failed to locate the main schema resource at') > -1:
	print('-:' + str(schemaline) + ': Schema file does not exist', file=sys.stderr)
	sys.exit()

if result.find('WXS schema ' + schema + ' failed to compile') > -1:
	print('-:' + str(schemaline) + ': Error in parsing schema', file=sys.stderr)
	sys.exit()

print(result, file=sys.stderr)