def do_tojson(eval_ctx, value, indent=None):
"""Dumps a structure to JSON so that it's safe to use in ``<script>``
tags. It accepts the same arguments and returns a JSON string. Note that
this is available in template through the ``|tojson`` filter which will
also mark the result as safe. Due to how this function escapes certain
characters this is safe even if used outside of ``<script>`` tags.
The following characters are escaped in strings:
- ``<``
- ``>``
- ``&``
- ``'``
This makes it safe to embed such strings in any place in HTML with the
notable exception of double quoted attributes. In that case single
quote your attributes or HTML escape it in addition.
The indent parameter can be used to enable pretty printing. Set it to
the number of spaces that the structures should be indented with.
Note that this filter is for use in HTML contexts only.
.. versionadded:: 2.9
"""
policies = eval_ctx.environment.policies
dumper = policies['json.dumps_function']
options = policies['json.dumps_kwargs']
if indent is not None:
options = dict(options)
options['indent'] = indent
return htmlsafe_json_dumps(value, dumper=dumper, **options)
def do_tojson(eval_ctx, value, indent=None):
"""Dumps a structure to JSON so that it's safe to use in ``<script>``
tags. It accepts the same arguments and returns a JSON string. Note that
this is available in templates through the ``|tojson`` filter which will
also mark the result as safe. Due to how this function escapes certain
characters this is safe even if used outside of ``<script>`` tags.
The following characters are escaped in strings:
- ``<``
- ``>``
- ``&``
- ``'``
This makes it safe to embed such strings in any place in HTML with the
notable exception of double quoted attributes. In that case single
quote your attributes or HTML escape it in addition.
The indent parameter can be used to enable pretty printing. Set it to
the number of spaces that the structures should be indented with.
Note that this filter is for use in HTML contexts only.
.. versionadded:: 2.9
"""
policies = eval_ctx.environment.policies
dumper = policies['json.dumps_function']
options = policies['json.dumps_kwargs']
if indent is not None:
options = dict(options)
options['indent'] = indent
return htmlsafe_json_dumps(value, dumper=dumper, **options)
def test_builtin_tile(self):
"""Test custom maptiles."""
default_tiles = [
"OpenStreetMap",
"Stamen Terrain",
"Stamen Toner",
"Mapbox Bright",
"Mapbox Control Room",
"CartoDB positron",
"CartoDB dark_matter",
]
for tiles in default_tiles:
m = folium.Map(location=[45.5236, -122.6750], tiles=tiles)
tiles = "".join(tiles.lower().strip().split())
url = "tiles/{}/tiles.txt".format
attr = "tiles/{}/attr.txt".format
url = m._env.get_template(url(tiles)).render()
attr = m._env.get_template(attr(tiles)).render()
assert m._children[tiles].tiles == url
assert htmlsafe_json_dumps(attr) in m._parent.render()
bounds = m.get_bounds()
assert bounds == [[None, None], [None, None]], bounds
def test_builtin_tile(self):
"""Test custom maptiles."""
default_tiles = [
"OpenStreetMap",
"Stamen Terrain",
"Stamen Toner",
"Mapbox Bright",
"Mapbox Control Room",
"CartoDB positron",
"CartoDB dark_matter",
]
for tiles in default_tiles:
m = folium.Map(location=[45.5236, -122.6750], tiles=tiles)
tiles = "".join(tiles.lower().strip().split())
url = "tiles/{}/tiles.txt".format
attr = "tiles/{}/attr.txt".format
url = m._env.get_template(url(tiles)).render()
attr = m._env.get_template(attr(tiles)).render()
assert m._children[tiles].tiles == url
assert htmlsafe_json_dumps(attr) in m._parent.render()
bounds = m.get_bounds()
assert bounds == [[None, None], [None, None]], bounds
def _filter_tojson(context: Context,
data: Any,
indent: Optional[int] = None) -> str:
"""
Converts a value to a JSON string safe for use in an HTML document.
This mimics Jinja2's built-in JSON filter, but uses Betty's own JSON encoder.
"""
return htmlsafe_json_dumps(
data,
indent=indent,
dumper=lambda *args, **kwargs: _filter_json(context, *args, **kwargs))
def _filter_tojson(context, data, indent=None):
return htmlsafe_json_dumps(data,
indent=indent,
dumper=lambda *args, **kwargs:
_filter_json(context, *args, **kwargs))