robotframework-2.7.7.src.robot.utils.markuputils.py Maven / Gradle / Ivy

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#  Copyright 2008-2012 Nokia Siemens Networks Oyj
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

import re

from .htmlformatters import LinkFormatter, HtmlFormatter


_format_url = LinkFormatter().format_url
_generic_escapes = (('&', '&'), ('<', '<'), ('>', '>'))
_attribute_escapes = _generic_escapes \
         + (('"', '"'), ('\n', '
'), ('\r', ''), ('\t', '	'))
_illegal_chars_in_xml = re.compile(u'[\x00-\x08\x0B\x0C\x0E-\x1F\uFFFE\uFFFF]')


def html_escape(text):
    return _format_url(_escape(text))


def xml_escape(text):
    return _illegal_chars_in_xml.sub('', _escape(text))


def html_format(text):
    return HtmlFormatter().format(_escape(text))


def attribute_escape(attr):
    return _escape(attr, _attribute_escapes)


def _escape(text, escapes=_generic_escapes):
    for name, value in escapes:
        if name in text:  # performance optimization
            text = text.replace(name, value)
    return _illegal_chars_in_xml.sub('', text)