Add rule to check for irregular spaces

saltlint/rules/NoIrregularSpacesRule.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+
+from saltlint.linter import SaltLintRule
+
+
+class NoIrregularSpacesRule(SaltLintRule):
+    id = '212'
+    shortdesc = 'Most files should not contain irregular spaces'
+    description = 'Irregular spaces can cause unexpected display issues, use spaces'
+    severity = 'LOW'
+    tags = ['formatting']
+    version_added = 'develop'
+
+    irregular_spaces = [
+        u"\u000B",  # Line Tabulation (\v) - <VT>
+        u"\u000C",  # Form Feed (\f) - <FF>
+        u"\u00A0",  # No-Break Space - <NBSP>
+        u"\u0085",  # Next Line
+        u"\u1680",  # Ogham Space Mark
+        u"\u180E",  # Mongolian Vowel Separator - <MVS>
+        u"\uFEFF",  # Zero Width No-Break Space - <BOM>
+        u"\u2000",  # En Quad
+        u"\u2001",  # Em Quad
+        u"\u2002",  # En Space - <ENSP>
+        u"\u2003",  # Em Space - <EMSP>
+        u"\u2004",  # Tree-Per-Em
+        u"\u2005",  # Four-Per-Em
+        u"\u2006",  # Six-Per-Em
+        u"\u2007",  # Figure Space
+        u"\u2008",  # Punctuation Space - <PUNCSP>
+        u"\u2009",  # Thin Space
+        u"\u200A",  # Hair Space
+        u"\u200B",  # Zero Width Space - <ZWSP>
+        u"\u2028",  # Line Separator
+        u"\u2029",  # Paragraph Separator
+        u"\u202F",  # Narrow No-Break Space
+        u"\u205F",  # Medium Mathematical Space
+        u"\u3000",  # Ideographic Space
+        ]
+
+    def match(self, file, line):
+        res = [i for i in self.irregular_spaces if i in line]
+        return len(res) != 0

tests/unit/TestNoIrregularSpacesRule.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import unittest
+
+from saltlint.linter import RulesCollection
+from saltlint.rules.NoIrregularSpacesRule import NoIrregularSpacesRule
+from tests import RunFromText
+
+
+LINE = '''
+/tmp/testfile:
+    file.managed:
+      - content:{space}"foobar"
+'''
+
+
+class TestNoIrregularSpacesRule(unittest.TestCase):
+    collection = RulesCollection()
+    collection.register(NoIrregularSpacesRule())
+
+    def setUp(self):
+        self.runner = RunFromText(self.collection)
+
+    def test_with_irregular_spaces(self):
+        for irregular in NoIrregularSpacesRule.irregular_spaces:
+            results = self.runner.run_state(LINE.format(space=irregular))
+            self.assertEqual(1, len(results))
+
+    def test_without_irregular_spaces(self):
+        results = self.runner.run_state(LINE.format(space=" "))
+        self.assertEqual(0, len(results))