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n0rdye
2024-11-29 18:15:30 +00:00
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commit bc9415586e
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4
venv/lib/python3.12/site-packages/dominate/__init__.py Normal file
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from ._version import __version__
version = __version__
from .document import document

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venv/lib/python3.12/site-packages/dominate/_version.py Normal file
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__version__ = '2.9.1'

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venv/lib/python3.12/site-packages/dominate/document.py Normal file
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__license__ = '''
This file is part of Dominate.
Dominate is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Dominate is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with Dominate. If not, see
<http://www.gnu.org/licenses/>.
'''
from . import tags
from . import util
try:
basestring = basestring
except NameError: # py3
basestring = str
unicode = str
class document(tags.html):
tagname = 'html'
def __init__(self, title='Dominate', doctype='<!DOCTYPE html>', *a, **kw):
'''
Creates a new document instance. Accepts `title` and `doctype`
'''
super(document, self).__init__(*a, **kw)
self.doctype = doctype
self.head = super(document, self).add(tags.head())
self.body = super(document, self).add(tags.body())
if title is not None:
self.title_node = self.head.add(tags.title(title))
with self.body:
self.header = util.container()
self.main = util.container()
self.footer = util.container()
self._entry = self.main
def get_title(self):
return self.title_node.text
def set_title(self, title):
if isinstance(title, basestring):
self.title_node.text = title
else:
self.head.remove(self.title_node)
self.head.add(title)
self.title_node = title
title = property(get_title, set_title)
def add(self, *args):
'''
Adding tags to a document appends them to the <body>.
'''
return self._entry.add(*args)
def _render(self, sb, *args, **kwargs):
'''
Renders the DOCTYPE and tag tree.
'''
# adds the doctype if one was set
if self.doctype:
sb.append(self.doctype)
sb.append('\n')
return super(document, self)._render(sb, *args, **kwargs)
def __repr__(self):
return '<dominate.document "%s">' % self.title

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venv/lib/python3.12/site-packages/dominate/dom1core.py Normal file
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__license__ = '''
This file is part of Dominate.
Dominate is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Dominate is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with Dominate. If not, see
<http://www.gnu.org/licenses/>.
'''
try:
basestring = basestring
except NameError: # py3
basestring = str
unicode = str
class dom1core(object):
'''
Implements the Document Object Model (Core) Level 1
http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/
http://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/level-one-core.html
'''
@property
def parentNode(self):
'''
DOM API: Returns the parent tag of the current element.
'''
return self.parent
def getElementById(self, id):
'''
DOM API: Returns single element with matching id value.
'''
results = self.get(id=id)
if len(results) > 1:
raise ValueError('Multiple tags with id "%s".' % id)
elif results:
return results[0]
return None
def getElementsByTagName(self, name):
'''
DOM API: Returns all tags that match name.
'''
if isinstance(name, basestring):
return self.get(name.lower())
return None
def appendChild(self, obj):
'''
DOM API: Add an item to the end of the children list.
'''
self.add(obj)
return self

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venv/lib/python3.12/site-packages/dominate/dom_tag.py Normal file
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__license__ = '''
This file is part of Dominate.
Dominate is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Dominate is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with Dominate. If not, see
<http://www.gnu.org/licenses/>.
'''
# pylint: disable=bad-indentation, bad-whitespace, missing-docstring
import copy
import numbers
from collections import defaultdict, namedtuple
from functools import wraps
import threading
from asyncio import get_event_loop
from uuid import uuid4
from contextvars import ContextVar
try:
# Python 3
from collections.abc import Callable
except ImportError: # pragma: no cover
# Python 2.7
from collections import Callable
try:
basestring = basestring
except NameError: # py3 # pragma: no cover
basestring = str
unicode = str
try:
import greenlet
except ImportError:
greenlet = None
# We want dominate to work in async contexts - however, the problem is
# when we bind a tag using "with", we set what is essentially a global variable.
# If we are processing multiple documents at the same time, one context
# can "overwrite" the "bound tag" of another - this can cause documents to
# sort of bleed into one another...
# The solution is to use a ContextVar - which provides async context local storage.
# We use this to store a unique ID for each async context. We then use thie ID to
# form the key (in _get_thread_context) that is used to index the _with_context defaultdict.
# The presense of this key ensures that each async context has its own stack and doesn't conflict.
async_context_id = ContextVar('async_context_id', default = None)
def _get_async_context_id():
if async_context_id.get() is None:
async_context_id.set(uuid4().hex)
return async_context_id.get()
def _get_thread_context():
context = [threading.current_thread()]
# Tag extra content information with a name to make sure
# a greenlet.getcurrent() == 1 doesn't get confused with a
# a _get_thread_context() == 1.
if greenlet:
context.append(("greenlet", greenlet.getcurrent()))
try:
if get_event_loop().is_running():
# Only add this extra information if we are actually in a running event loop
context.append(("async", _get_async_context_id()))
# A runtime error is raised if there is no async loop...
except RuntimeError:
pass
return tuple(context)
class dom_tag(object):
is_single = False # Tag does not require matching end tag (ex. <hr/>)
is_pretty = True # Text inside the tag should be left as-is (ex. <pre>)
# otherwise, text will be escaped() and whitespace may be
# modified
is_inline = False
def __new__(_cls, *args, **kwargs):
'''
Check if bare tag is being used a a decorator
(called with a single function arg).
decorate the function and return
'''
if len(args) == 1 and isinstance(args[0], Callable) \
and not isinstance(args[0], dom_tag) and not kwargs:
wrapped = args[0]
@wraps(wrapped)
def f(*args, **kwargs):
with _cls() as _tag:
return wrapped(*args, **kwargs) or _tag
return f
return object.__new__(_cls)
def __init__(self, *args, **kwargs):
'''
Creates a new tag. Child tags should be passed as arguments and attributes
should be passed as keyword arguments.
There is a non-rendering attribute which controls how the tag renders:
* `__inline` - Boolean value. If True renders all children tags on the same
line.
'''
self.attributes = {}
self.children = []
self.parent = None
# Does not insert newlines on all children if True (recursive attribute)
self.is_inline = kwargs.pop('__inline', self.is_inline)
self.is_pretty = kwargs.pop('__pretty', self.is_pretty)
#Add child elements
if args:
self.add(*args)
for attr, value in kwargs.items():
self.set_attribute(*type(self).clean_pair(attr, value))
self._ctx = None
self._add_to_ctx()
# context manager
frame = namedtuple('frame', ['tag', 'items', 'used'])
# stack of frames
_with_contexts = defaultdict(list)
def _add_to_ctx(self):
stack = dom_tag._with_contexts.get(_get_thread_context())
if stack:
self._ctx = stack[-1]
stack[-1].items.append(self)
def __enter__(self):
stack = dom_tag._with_contexts[_get_thread_context()]
stack.append(dom_tag.frame(self, [], set()))
return self
def __exit__(self, type, value, traceback):
thread_id = _get_thread_context()
stack = dom_tag._with_contexts[thread_id]
frame = stack.pop()
for item in frame.items:
if item in frame.used: continue
self.add(item)
if not stack:
del dom_tag._with_contexts[thread_id]
def __call__(self, func):
'''
tag instance is being used as a decorator.
wrap func to make a copy of this tag
'''
# remove decorator from its context so it doesn't
# get added in where it was defined
if self._ctx:
self._ctx.used.add(self)
@wraps(func)
def f(*args, **kwargs):
tag = copy.deepcopy(self)
tag._add_to_ctx()
with tag:
return func(*args, **kwargs) or tag
return f
def set_attribute(self, key, value):
'''
Add or update the value of an attribute.
'''
if isinstance(key, int):
self.children[key] = value
elif isinstance(key, basestring):
self.attributes[key] = value
else:
raise TypeError('Only integer and string types are valid for assigning '
'child tags and attributes, respectively.')
__setitem__ = set_attribute
def delete_attribute(self, key):
if isinstance(key, int):
del self.children[key:key+1]
else:
del self.attributes[key]
__delitem__ = delete_attribute
def add(self, *args):
'''
Add new child tags.
'''
for obj in args:
if isinstance(obj, numbers.Number):
# Convert to string so we fall into next if block
obj = str(obj)
if isinstance(obj, basestring):
obj = util.escape(obj)
self.children.append(obj)
elif isinstance(obj, dom_tag):
stack = dom_tag._with_contexts.get(_get_thread_context(), [])
for s in stack:
s.used.add(obj)
self.children.append(obj)
obj.parent = self
elif isinstance(obj, dict):
for attr, value in obj.items():
self.set_attribute(*dom_tag.clean_pair(attr, value))
elif hasattr(obj, '__iter__'):
for subobj in obj:
self.add(subobj)
else: # wtf is it?
raise ValueError('%r not a tag or string.' % obj)
if len(args) == 1:
return args[0]
return args
def add_raw_string(self, s):
self.children.append(s)
def remove(self, obj):
self.children.remove(obj)
def clear(self):
for i in self.children:
if isinstance(i, dom_tag) and i.parent is self:
i.parent = None
self.children = []
def get(self, tag=None, **kwargs):
'''
Recursively searches children for tags of a certain
type with matching attributes.
'''
# Stupid workaround since we can not use dom_tag in the method declaration
if tag is None: tag = dom_tag
attrs = [(dom_tag.clean_attribute(attr), value)
for attr, value in kwargs.items()]
results = []
for child in self.children:
if (isinstance(tag, basestring) and type(child).__name__ == tag) or \
(not isinstance(tag, basestring) and isinstance(child, tag)):
if all(child.attributes.get(attribute) == value
for attribute, value in attrs):
# If the child is of correct type and has all attributes and values
# in kwargs add as a result
results.append(child)
if isinstance(child, dom_tag):
# If the child is a dom_tag extend the search down through its children
results.extend(child.get(tag, **kwargs))
return results
def __getitem__(self, key):
'''
Returns the stored value of the specified attribute or child
(if it exists).
'''
if isinstance(key, int):
# Children are accessed using integers
try:
return object.__getattribute__(self, 'children')[key]
except IndexError:
raise IndexError('Child with index "%s" does not exist.' % key)
elif isinstance(key, basestring):
# Attributes are accessed using strings
try:
return object.__getattribute__(self, 'attributes')[key]
except KeyError:
raise AttributeError('Attribute "%s" does not exist.' % key)
else:
raise TypeError('Only integer and string types are valid for accessing '
'child tags and attributes, respectively.')
__getattr__ = __getitem__
def __len__(self):
'''
Number of child elements.
'''
return len(self.children)
def __bool__(self):
'''
Hack for "if x" and __len__
'''
return True
__nonzero__ = __bool__
def __iter__(self):
'''
Iterates over child elements.
'''
return self.children.__iter__()
def __contains__(self, item):
'''
Checks recursively if item is in children tree.
Accepts both a string and a class.
'''
return bool(self.get(item))
def __iadd__(self, obj):
'''
Reflexive binary addition simply adds tag as a child.
'''
self.add(obj)
return self
# String and unicode representations are the same as render()
def __unicode__(self):
return self.render()
__str__ = __unicode__
def render(self, indent=' ', pretty=True, xhtml=False):
data = self._render([], 0, indent, pretty, xhtml)
return u''.join(data)
def _render(self, sb, indent_level, indent_str, pretty, xhtml):
pretty = pretty and self.is_pretty
name = getattr(self, 'tagname', type(self).__name__)
# Workaround for python keywords and standard classes/methods
# (del, object, input)
if name[-1] == '_':
name = name[:-1]
# open tag
sb.append('<')
sb.append(name)
for attribute, value in sorted(self.attributes.items()):
if value in (False, None):
continue
val = unicode(value) if isinstance(value, util.text) and not value.escape else util.escape(unicode(value), True)
sb.append(' %s="%s"' % (attribute, val))
sb.append(' />' if self.is_single and xhtml else '>')
if self.is_single:
return sb
inline = self._render_children(sb, indent_level + 1, indent_str, pretty, xhtml)
if pretty and not inline:
sb.append('\n')
sb.append(indent_str * indent_level)
# close tag
sb.append('</')
sb.append(name)
sb.append('>')
return sb
def _render_children(self, sb, indent_level, indent_str, pretty, xhtml):
inline = True
for child in self.children:
if isinstance(child, dom_tag):
if pretty and not child.is_inline:
inline = False
sb.append('\n')
sb.append(indent_str * indent_level)
child._render(sb, indent_level, indent_str, pretty, xhtml)
else:
sb.append(unicode(child))
return inline
def __repr__(self):
name = '%s.%s' % (self.__module__, type(self).__name__)
attributes_len = len(self.attributes)
attributes = '%s attribute' % attributes_len
if attributes_len != 1: attributes += 's'
children_len = len(self.children)
children = '%s child' % children_len
if children_len != 1: children += 'ren'
return '<%s at %x: %s, %s>' % (name, id(self), attributes, children)
@staticmethod
def clean_attribute(attribute):
'''
Normalize attribute names for shorthand and work arounds for limitations
in Python's syntax
'''
# Shorthand
attribute = {
'cls': 'class',
'className': 'class',
'class_name': 'class',
'klass': 'class',
'fr': 'for',
'html_for': 'for',
'htmlFor': 'for',
'phor': 'for',
}.get(attribute, attribute)
# Workaround for Python's reserved words
if attribute[0] == '_':
attribute = attribute[1:]
# Workaround for dash
special_prefix = any([attribute.startswith(x) for x in ('data_', 'aria_')])
if attribute in set(['http_equiv']) or special_prefix:
attribute = attribute.replace('_', '-').lower()
# Workaround for colon
if attribute.split('_')[0] in ('xlink', 'xml', 'xmlns'):
attribute = attribute.replace('_', ':', 1).lower()
return attribute
@classmethod
def clean_pair(cls, attribute, value):
'''
This will call `clean_attribute` on the attribute and also allows for the
creation of boolean attributes.
Ex. input(selected=True) is equivalent to input(selected="selected")
'''
attribute = cls.clean_attribute(attribute)
# Check for boolean attributes
# (i.e. selected=True becomes selected="selected")
if value is True:
value = attribute
# Ignore `if value is False`: this is filtered out in render()
return (attribute, value)
_get_current_none = object()
def get_current(default=_get_current_none):
'''
get the current tag being used as a with context or decorated function.
if no context is active, raises ValueError, or returns the default, if provided
'''
h = _get_thread_context()
ctx = dom_tag._with_contexts.get(h, None)
if ctx:
return ctx[-1].tag
if default is _get_current_none:
raise ValueError('no current context')
return default
def attr(*args, **kwargs):
'''
Set attributes on the current active tag context
'''
c = get_current()
dicts = args + (kwargs,)
for d in dicts:
for attr, value in d.items():
c.set_attribute(*dom_tag.clean_pair(attr, value))
from . import util

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venv/lib/python3.12/site-packages/dominate/svg.py Normal file
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'''
This module consists of classes specific to HTML5-SVG Elements. In general this module does not include
- Elements that are not specific to SVG (eg. <a>)
- Elements that are deprecated
'''
from dominate.tags import html_tag
from dominate.dom_tag import dom_tag
import numbers
__license__ = '''
This file is part of Dominate.
Dominate is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Dominate is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with Dominate. If not, see
<http://www.gnu.org/licenses/>.
'''
# Tag attributes
_ATTR_GLOBAL = set([
'accesskey', 'class', 'class', 'contenteditable', 'contextmenu', 'dir',
'draggable', 'id', 'item', 'hidden', 'lang', 'itemprop', 'spellcheck',
'style', 'subject', 'tabindex', 'title'
])
# https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/Events#Attributes
_ATTR_EVENTS = set([
'onbegin', 'onend', 'onrepeat',
'onabort', 'onerror', 'onresize', 'onscroll', 'onunload',
'oncopy', 'oncut', 'onpaste',
'oncancel', 'oncanplay', 'oncanplaythrough', 'onchange', 'onclick', 'onclose', 'oncuechange', 'ondblclick',
'ondrag', 'ondragend', 'ondragenter', 'ondragexit', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop',
'ondurationchange', 'onemptied', 'onended', 'onerror', 'onfocus', 'oninput', 'oninvalid', 'onkeydown', 'onkeypress',
'onkeyup', 'onload', 'onloadeddata', 'onloadedmetadata','onloadstart', 'onmousedown', 'onmouseenter',
'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onpause', 'onplay',
'onplaying', 'onprogress', 'onratechange', 'onreset', 'onresize', 'onscroll', 'onseeked', 'onseeking', 'onselect',
'onshow', 'onstalled', 'onsubmit', 'onsuspend', 'ontimeupdate', 'ontoggle', 'onvolumechange', 'onwaiting'
])
DASHED_ATTRIBUTES = set([
'accent', 'alignment', 'arabic', 'baseline', 'cap', 'clip', 'color', 'dominant', 'enable', 'fill', 'flood',
'font', 'glyph', 'horiz', 'image', 'letter', 'lighting', 'marker', 'overline', 'paint', 'panose', 'pointer',
'rendering', 'shape', 'stop', 'strikethrough', 'stroke', 'text', 'underline', 'unicode', 'units', 'v', 'vector',
'vert', 'word', 'writing', 'x'
])
# https://developer.mozilla.org/en-US/docs/Web/SVG/Element/svg
class svg_tag(html_tag):
@staticmethod
def clean_attribute(attribute):
attribute = html_tag.clean_attribute(attribute)
words = attribute.split('_')
if words[0] in DASHED_ATTRIBUTES:
return attribute.replace('_', '-')
return attribute
class svg(svg_tag):
pass
class animate(svg_tag):
'''
The animate SVG element is used to animate an attribute or property of an element over time.
It's normally inserted inside the element or referenced by the href attribute of the target element.
'''
pass
class animateMotion(svg_tag):
'''
The <animateMotion> element causes a referenced element to move along a motion path.
'''
pass
class animateTransform(svg_tag):
'''
The animateTransform element animates a transformation attribute on its target element, thereby allowing
animations to control translation, scaling, rotation, and/or skewing.
'''
is_single = True
class circle(svg_tag):
'''
The <circle> SVG element is an SVG basic shape, used to draw circles based on a center point and a radius.
'''
pass
class clipPath(svg_tag):
'''
The <clipPath> SVG element defines a clipping path, to be used used by the clip-path property.
'''
pass
class defs(svg_tag):
'''
The <defs> element is used to store graphical objects that will be used at a later time. Objects created inside a
<defs> element are not rendered directly. To display them you have to reference them
(with a <use> element for example).
'''
pass
class desc(svg_tag):
'''
The <desc> element provides an accessible, long-text description of any SVG container element or graphics element.
'''
pass
class ellipse(svg_tag):
'''
An ellipse element for svg containers
'''
pass
# (Note, filters are at the bottom of this file)
class g(svg_tag):
'''
The <g> SVG element is a container used to group other SVG elements.
'''
pass
class image(svg_tag):
'''
The <image> SVG element includes images inside SVG documents. It can display raster image files or other SVG files.
'''
pass
class line(svg_tag):
'''
The <line> element is an SVG basic shape used to create a line connecting two points.
'''
pass
class linearGradient(svg_tag):
'''
The <linearGradient> element lets authors define linear gradients that can be applied to fill or
stroke of graphical elements.
'''
pass
class marker(svg_tag):
'''
The <marker> element defines the graphic that is to be used for drawing arrowheads or polymarkers on a given <path>, <line>, <polyline> or <polygon> element.
'''
pass
class mask(svg_tag):
'''
The <mask> element defines an alpha mask for compositing the current object into the background.
A mask is used/referenced using the mask property.
'''
pass
class mpath(svg_tag):
'''
The <mpath> sub-element for the <animateMotion> element provides the ability to reference an
external <path> element as the definition of a motion path.
'''
pass
class pattern(svg_tag):
'''
The <pattern> element defines a graphics object which can be redrawn at repeated x and y-coordinate
intervals ("tiled") to cover an area.
'''
pass
class polygon(svg_tag):
'''
A polygon element for svg containers
'''
pass
class polyline(svg_tag):
'''
A polyline element for svg containers
'''
pass
class radialGradient(svg_tag):
'''
The <radialGradient> element lets authors define radial gradients that can be applied to fill
or stroke of graphical elements.
'''
pass
class path(svg_tag):
'''
A path element for svg containers
'''
pass
class rect(svg_tag):
'''
A rectangle element for svg containers
'''
pass
class stop(svg_tag):
'''
The SVG <stop> element defines a color and its position to use on a gradient.
This element is always a child of a <linearGradient> or <radialGradient> element.
'''
pass
class switch(svg_tag):
'''
The <switch> SVG element evaluates any requiredFeatures, requiredExtensions and systemLanguage attributes
on its direct child elements in order, and then renders the first child where these attributes evaluate to true.
Other direct children will be bypassed and therefore not rendered. If a child element is a container element,
like <g>, then its subtree is also processed/rendered or bypassed/not rendered.
'''
pass
class symbol(svg_tag):
'''
The use of symbol elements for graphics that are used multiple times in the same document adds structure and
semantics. Documents that are rich in structure may be rendered graphically, as speech, or as Braille,
and thus promote accessibility.
'''
pass
class text(svg_tag):
'''
The SVG <text> element draws a graphics element consisting of text. It's possible to apply a gradient,
pattern, clipping path, mask, or filter to <text>, like any other SVG graphics element.
'''
pass
class textPath(svg_tag):
'''
To render text along the shape of a <path>, enclose the text in a <textPath> element that has an href
attribute with a reference to the <path> element.
'''
pass
class title(svg_tag):
'''
The <title> element provides an accessible, short-text description of any SVG container
element or graphics element.
'''
pass
class tspan(svg_tag):
'''
The SVG <tspan> element define a subtext within a <text> element or another <tspan> element.
It allows to adjust the style and/or position of that subtext as needed.
'''
pass
class use(svg_tag):
'''
The <use> element takes nodes from within the SVG document, and duplicates them somewhere else.
'''
pass
class view(svg_tag):
'''
A view is a defined way to view the image, like a zoom level or a detail view.
'''
pass
# FILTERS
class filter(svg_tag):
pass
class feBlend(svg_tag):
pass
class feColorMatrix(svg_tag):
pass
class feComponentTransfer(svg_tag):
pass
class feComposite(svg_tag):
pass
class feConvolveMatrix(svg_tag):
pass
class feDiffuseLighting(svg_tag):
pass
class feDisplacementMap(svg_tag):
pass
class feFlood(svg_tag):
pass
class feGaussianBlur(svg_tag):
pass
class feImage(svg_tag):
pass
class feMerge(svg_tag):
pass
class feMorphology(svg_tag):
pass
class feOffset(svg_tag):
pass
class feSpecularLighting(svg_tag):
pass
class feTile(svg_tag):
pass
class feTurbulence(svg_tag):
pass
class feDistantLight(svg_tag):
pass
class fePointLight(svg_tag):
pass
class feSpotLight(svg_tag):
pass

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'''
Utility classes for creating dynamic html documents
'''
__license__ = '''
This file is part of Dominate.
Dominate is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Dominate is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with Dominate. If not, see
<http://www.gnu.org/licenses/>.
'''
import re
from .dom_tag import dom_tag
try:
basestring = basestring
except NameError:
basestring = str
unichr = chr
def include(f):
'''
includes the contents of a file on disk.
takes a filename
'''
fl = open(f, 'r')
data = fl.read()
fl.close()
return raw(data)
def system(cmd, data=None):
'''
pipes the output of a program
'''
import subprocess
s = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE)
out, err = s.communicate(data)
return out.decode('utf8')
def escape(data, quote=True): # stolen from std lib cgi
'''
Escapes special characters into their html entities
Replace special characters "&", "<" and ">" to HTML-safe sequences.
If the optional flag quote is true, the quotation mark character (")
is also translated.
This is used to escape content that appears in the body of an HTML document
'''
data = data.replace("&", "&amp;") # Must be done first!
data = data.replace("<", "&lt;")
data = data.replace(">", "&gt;")
if quote:
data = data.replace('"', "&quot;")
return data
_unescape = {
'quot': 34,
'amp': 38,
'lt': 60,
'gt': 62,
'nbsp': 32,
# more here
# http://www.w3.org/TR/html4/sgml/entities.html
'yuml': 255,
}
str_escape = escape
def unescape(data):
'''
unescapes html entities. the opposite of escape.
'''
cc = re.compile(r'&(?:(?:#(\d+))|([^;]+));')
result = []
m = cc.search(data)
while m:
result.append(data[0:m.start()])
d = m.group(1)
if d:
d = int(d)
result.append(unichr(d))
else:
d = _unescape.get(m.group(2), ord('?'))
result.append(unichr(d))
data = data[m.end():]
m = cc.search(data)
result.append(data)
return ''.join(result)
_reserved = ";/?:@&=+$, "
_replace_map = dict((c, '%%%2X' % ord(c)) for c in _reserved)
def url_escape(data):
return ''.join(_replace_map.get(c, c) for c in data)
def url_unescape(data):
return re.sub('%([0-9a-fA-F]{2})',
lambda m: unichr(int(m.group(1), 16)), data)
class container(dom_tag):
'''
Contains multiple elements, but does not add a level
'''
is_inline = True
def _render(self, sb, indent_level, indent_str, pretty, xhtml):
inline = self._render_children(sb, indent_level, indent_str, pretty, xhtml)
if pretty and not inline:
sb.append('\n')
sb.append(indent_str * (indent_level - 1))
return sb
class lazy(dom_tag):
'''
delays function execution until rendered
'''
def __new__(_cls, *args, **kwargs):
'''
Need to reset this special method or else
dom_tag will think it's being used as a dectorator.
This means lazy() can't be used as a dectorator, but
thinking about when you might want that just confuses me.
'''
return object.__new__(_cls)
def __init__(self, func, *args, **kwargs):
super(lazy, self).__init__()
self.func = func
self.args = args
self.kwargs = kwargs
def _render(self, sb, *a, **kw):
r = self.func(*self.args, **self.kwargs)
sb.append(str(r))
class text(dom_tag):
'''
Just a string. Useful for inside context managers
'''
is_pretty = False
is_inline = True
def __init__(self, _text, escape=True):
super(text, self).__init__()
self.escape = escape
if escape:
self.text = str_escape(_text)
else:
self.text = _text
def _render(self, sb, *a, **kw):
sb.append(self.text)
return sb
def raw(s):
'''
Inserts a raw string into the DOM. Unsafe. Alias for text(x, escape=False)
'''
return text(s, escape=False)