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annotate planemo/lib/python3.7/site-packages/markupsafe/_native.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 # -*- coding: utf-8 -*-
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2 """
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3 markupsafe._native
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4 ~~~~~~~~~~~~~~~~~~
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5
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6 Native Python implementation used when the C module is not compiled.
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7
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8 :copyright: 2010 Pallets
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9 :license: BSD-3-Clause
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10 """
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11 from . import Markup
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12 from ._compat import text_type
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13
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14
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15 def escape(s):
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16 """Replace the characters ``&``, ``<``, ``>``, ``'``, and ``"`` in
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17 the string with HTML-safe sequences. Use this if you need to display
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18 text that might contain such characters in HTML.
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19
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20 If the object has an ``__html__`` method, it is called and the
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21 return value is assumed to already be safe for HTML.
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22
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23 :param s: An object to be converted to a string and escaped.
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24 :return: A :class:`Markup` string with the escaped text.
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25 """
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26 if hasattr(s, "__html__"):
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27 return Markup(s.__html__())
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28 return Markup(
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29 text_type(s)
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30 .replace("&", "&amp;")
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31 .replace(">", "&gt;")
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32 .replace("<", "&lt;")
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33 .replace("'", "&#39;")
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34 .replace('"', "&#34;")
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35 )
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37
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38 def escape_silent(s):
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39 """Like :func:`escape` but treats ``None`` as the empty string.
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40 Useful with optional values, as otherwise you get the string
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41 ``'None'`` when the value is ``None``.
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42
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43 >>> escape(None)
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44 Markup('None')
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45 >>> escape_silent(None)
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46 Markup('')
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47 """
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48 if s is None:
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49 return Markup()
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50 return escape(s)
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51
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52
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53 def soft_unicode(s):
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54 """Convert an object to a string if it isn't already. This preserves
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55 a :class:`Markup` string rather than converting it back to a basic
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56 string, so it will still be marked as safe and won't be escaped
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57 again.
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58
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59 >>> value = escape('<User 1>')
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60 >>> value
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61 Markup('&lt;User 1&gt;')
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62 >>> escape(str(value))
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63 Markup('&amp;lt;User 1&amp;gt;')
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64 >>> escape(soft_unicode(value))
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65 Markup('&lt;User 1&gt;')
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66 """
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67 if not isinstance(s, text_type):
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68 s = text_type(s)
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69 return s