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merged: add escape_tags option to enable/disable escaping tag names and attribut... #21

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merged: add escape_tags option to enable/disable escaping tag names and attribut... #21

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4 changes: 4 additions & 0 deletions htmlmin/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@ def minify(input,
reduce_empty_attributes=True,
reduce_boolean_attributes=False,
remove_optional_attribute_quotes=True,
escape_tags=True,
keep_pre=False,
pre_tags=parser.PRE_TAGS,
pre_attr='pre'):
Expand Down Expand Up @@ -93,6 +94,7 @@ def minify(input,
reduce_empty_attributes=reduce_empty_attributes,
reduce_boolean_attributes=reduce_boolean_attributes,
remove_optional_attribute_quotes=remove_optional_attribute_quotes,
escape_tags=escape_tags,
keep_pre=keep_pre,
pre_tags=pre_tags,
pre_attr=pre_attr)
Expand All @@ -118,6 +120,7 @@ def __init__(self,
reduce_empty_attributes=True,
reduce_boolean_attributes=False,
remove_optional_attribute_quotes=True,
escape_tags=True,
keep_pre=False,
pre_tags=parser.PRE_TAGS,
pre_attr='pre'):
Expand All @@ -132,6 +135,7 @@ def __init__(self,
reduce_empty_attributes=reduce_empty_attributes,
reduce_boolean_attributes=reduce_boolean_attributes,
remove_optional_attribute_quotes=remove_optional_attribute_quotes,
escape_tags=escape_tags,
keep_pre=keep_pre,
pre_tags=pre_tags,
pre_attr=pre_attr)
Expand Down
24 changes: 17 additions & 7 deletions htmlmin/parser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,9 @@
# Tag omission rules:
# http://www.w3.org/TR/html51/syntax.html#optional-tags

def escape_noop(v, **kwargs):
return v

class HTMLMinError(Exception): pass
class ParseError(HTMLMinError): pass
class OpenTagNotFoundError(ParseError): pass
Expand All @@ -92,6 +95,7 @@ def __init__(self,
reduce_empty_attributes=True,
reduce_boolean_attributes=False,
remove_optional_attribute_quotes=True,
escape_tags=True,
keep_pre=False,
pre_tags=PRE_TAGS,
pre_attr='pre'):
Expand All @@ -113,6 +117,10 @@ def __init__(self,
self._tag_stack = []
self._title_newly_opened = False
self.__title_trailing_whitespace = False
if escape_tags:
self.escape = escape
else:
self.escape = escape_noop

def _has_pre(self, attrs):
for k,v in attrs:
Expand All @@ -123,24 +131,26 @@ def _has_pre(self, attrs):
def build_tag(self, tag, attrs, close_tag):
result = StringIO()
result.write('<')
result.write(escape(tag))
result.write(self.escape(tag))
needs_closing_space = False
for k,v in attrs:
result.write(' ')
result.write(escape(k))
result.write(self.escape(k))
if v:
if self.reduce_boolean_attributes and (
k in BOOLEAN_ATTRIBUTES.get(tag,[]) or
k in BOOLEAN_ATTRIBUTES['*']):
pass
elif self.remove_optional_attribute_quotes and not any((c in v for c in ('"', "'", ' ', '<', '>', '='))):
result.write('=')
result.write(escape(v, quote=True))
result.write(self.escape(v, quote=True))
needs_closing_space = v.endswith('/')
else:
result.write('="')
result.write(escape(v, quote=True).replace('&#x27;', "'"))
result.write('"')
attr_val = self.escape(v, quote=True).replace("'", '&#x27;')
if '"' in attr_val:
result.write("='{}'".format(attr_val))
else:
result.write('="{}"'.format(attr_val))
elif not self.reduce_empty_attributes:
result.write('=""')
if needs_closing_space:
Expand Down Expand Up @@ -256,7 +266,7 @@ def handle_endtag(self, tag):
# results in a '<p></p>' in Chrome.
pass
if tag not in NO_CLOSE_TAGS:
self._data_buffer.extend(['</', escape(tag), '>'])
self._data_buffer.extend(['</', self.escape(tag), '>'])

def handle_startendtag(self, tag, attrs):
self._after_doctype = False
Expand Down
16 changes: 16 additions & 0 deletions htmlmin/tests/tests.py
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,14 @@
}

FEATURES_TEXTS = {
'escape_tags_true': (
'<body > <a href="http://example.com/?hello=world&foo=bar" >hello</a></ body> ',
'<body> <a href="http://example.com/?hello=world&amp;foo=bar">hello</a></body> ',
),
'escape_tags_false': (
'<body > <a href="http://example.com/?hello=world&foo=bar" >hello</a></ body> ',
'<body> <a href="http://example.com/?hello=world&foo=bar">hello</a></body> ',
),
'remove_quotes': (
'<body > <div id="x" style=" abc " data-a=b></div></ body> ',
'<body> <div id=x style=" abc " data-a=b></div></body> ',
Expand Down Expand Up @@ -342,6 +350,14 @@ def test_buffered_input(self):
class TestMinifyFeatures(HTMLMinTestCase):
__reference_texts__ = FEATURES_TEXTS

def test_escape_tags_true(self):
text = self.__reference_texts__['escape_tags_true']
self.assertEqual(htmlmin.minify(text[0], escape_tags=True), text[1])

def test_escape_tags_false(self):
text = self.__reference_texts__['escape_tags_false']
self.assertEqual(htmlmin.minify(text[0], escape_tags=False), text[1])

def test_remove_comments(self):
text = self.__reference_texts__['remove_comments']
self.assertEqual(htmlmin.minify(text[0], remove_comments=True), text[1])
Expand Down