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authorJames Taylor <user234683@users.noreply.github.com>2019-09-06 16:31:13 -0700
committerJames Taylor <user234683@users.noreply.github.com>2019-09-06 16:31:13 -0700
commit3d57e14df7ba5f14a634295caf3b2e60da50bfe2 (patch)
tree4903bcb79a49ad714a1a9129765b9545405c9978 /python/flask/templating.py
parentac32b24b2a011292b704a3f27e8fd08a7ae9424b (diff)
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Remove windows python distribution from repo and add requirements.txt
Diffstat (limited to 'python/flask/templating.py')
-rw-r--r--python/flask/templating.py150
1 files changed, 0 insertions, 150 deletions
diff --git a/python/flask/templating.py b/python/flask/templating.py
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--- a/python/flask/templating.py
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-# -*- coding: utf-8 -*-
-"""
- flask.templating
- ~~~~~~~~~~~~~~~~
-
- Implements the bridge to Jinja2.
-
- :copyright: © 2010 by the Pallets team.
- :license: BSD, see LICENSE for more details.
-"""
-
-from jinja2 import BaseLoader, Environment as BaseEnvironment, \
- TemplateNotFound
-
-from .globals import _request_ctx_stack, _app_ctx_stack
-from .signals import template_rendered, before_render_template
-
-
-def _default_template_ctx_processor():
- """Default template context processor. Injects `request`,
- `session` and `g`.
- """
- reqctx = _request_ctx_stack.top
- appctx = _app_ctx_stack.top
- rv = {}
- if appctx is not None:
- rv['g'] = appctx.g
- if reqctx is not None:
- rv['request'] = reqctx.request
- rv['session'] = reqctx.session
- return rv
-
-
-class Environment(BaseEnvironment):
- """Works like a regular Jinja2 environment but has some additional
- knowledge of how Flask's blueprint works so that it can prepend the
- name of the blueprint to referenced templates if necessary.
- """
-
- def __init__(self, app, **options):
- if 'loader' not in options:
- options['loader'] = app.create_global_jinja_loader()
- BaseEnvironment.__init__(self, **options)
- self.app = app
-
-
-class DispatchingJinjaLoader(BaseLoader):
- """A loader that looks for templates in the application and all
- the blueprint folders.
- """
-
- def __init__(self, app):
- self.app = app
-
- def get_source(self, environment, template):
- if self.app.config['EXPLAIN_TEMPLATE_LOADING']:
- return self._get_source_explained(environment, template)
- return self._get_source_fast(environment, template)
-
- def _get_source_explained(self, environment, template):
- attempts = []
- trv = None
-
- for srcobj, loader in self._iter_loaders(template):
- try:
- rv = loader.get_source(environment, template)
- if trv is None:
- trv = rv
- except TemplateNotFound:
- rv = None
- attempts.append((loader, srcobj, rv))
-
- from .debughelpers import explain_template_loading_attempts
- explain_template_loading_attempts(self.app, template, attempts)
-
- if trv is not None:
- return trv
- raise TemplateNotFound(template)
-
- def _get_source_fast(self, environment, template):
- for srcobj, loader in self._iter_loaders(template):
- try:
- return loader.get_source(environment, template)
- except TemplateNotFound:
- continue
- raise TemplateNotFound(template)
-
- def _iter_loaders(self, template):
- loader = self.app.jinja_loader
- if loader is not None:
- yield self.app, loader
-
- for blueprint in self.app.iter_blueprints():
- loader = blueprint.jinja_loader
- if loader is not None:
- yield blueprint, loader
-
- def list_templates(self):
- result = set()
- loader = self.app.jinja_loader
- if loader is not None:
- result.update(loader.list_templates())
-
- for blueprint in self.app.iter_blueprints():
- loader = blueprint.jinja_loader
- if loader is not None:
- for template in loader.list_templates():
- result.add(template)
-
- return list(result)
-
-
-def _render(template, context, app):
- """Renders the template and fires the signal"""
-
- before_render_template.send(app, template=template, context=context)
- rv = template.render(context)
- template_rendered.send(app, template=template, context=context)
- return rv
-
-
-def render_template(template_name_or_list, **context):
- """Renders a template from the template folder with the given
- context.
-
- :param template_name_or_list: the name of the template to be
- rendered, or an iterable with template names
- the first one existing will be rendered
- :param context: the variables that should be available in the
- context of the template.
- """
- ctx = _app_ctx_stack.top
- ctx.app.update_template_context(context)
- return _render(ctx.app.jinja_env.get_or_select_template(template_name_or_list),
- context, ctx.app)
-
-
-def render_template_string(source, **context):
- """Renders a template from the given template source string
- with the given context. Template variables will be autoescaped.
-
- :param source: the source code of the template to be
- rendered
- :param context: the variables that should be available in the
- context of the template.
- """
- ctx = _app_ctx_stack.top
- ctx.app.update_template_context(context)
- return _render(ctx.app.jinja_env.from_string(source),
- context, ctx.app)