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543 lines
15 KiB
543 lines
15 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Twitter Bootstrap RST directives Plugin For Pelican
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===================================================
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This plugin defines rst directives for different CSS and Javascript components from
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the twitter bootstrap framework.
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"""
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from uuid import uuid1
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from cgi import escape
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from docutils import nodes, utils
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import docutils
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from docutils.parsers import rst
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from docutils.parsers.rst import directives, roles, Directive
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from pelican import signals
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from pelican.readers import RstReader, PelicanHTMLTranslator
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class CleanHTMLTranslator(PelicanHTMLTranslator):
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"""
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A custom HTML translator based on the Pelican HTML translator.
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Used to clean up some components html classes that could conflict
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with the bootstrap CSS classes.
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Also defines new tags that are not handleed by the current implementation of
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docutils.
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The most obvious example is the Container component
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"""
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def visit_literal(self, node):
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classes = node.get('classes', node.get('class', []))
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if 'code' in classes:
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self.body.append(self.starttag(node, 'code'))
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elif 'kbd' in classes:
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self.body.append(self.starttag(node, 'kbd'))
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else:
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self.body.append(self.starttag(node, 'pre'))
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def depart_literal(self, node):
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classes = node.get('classes', node.get('class', []))
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if 'code' in classes:
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self.body.append('</code>\n')
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elif 'kbd' in classes:
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self.body.append('</kbd>\n')
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else:
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self.body.append('</pre>\n')
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def visit_container(self, node):
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self.body.append(self.starttag(node, 'div'))
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class CleanRSTReader(RstReader):
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"""
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A custom RST reader that behaves exactly like its parent class RstReader with
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the difference that it uses the CleanHTMLTranslator
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"""
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def _get_publisher(self, source_path):
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extra_params = {'initial_header_level': '2',
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'syntax_highlight': 'short',
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'input_encoding': 'utf-8'}
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user_params = self.settings.get('DOCUTILS_SETTINGS')
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if user_params:
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extra_params.update(user_params)
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pub = docutils.core.Publisher(
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destination_class=docutils.io.StringOutput)
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pub.set_components('standalone', 'restructuredtext', 'html')
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pub.writer.translator_class = CleanHTMLTranslator
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pub.process_programmatic_settings(None, extra_params, None)
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pub.set_source(source_path=source_path)
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pub.publish()
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return pub
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def keyboard_role(name, rawtext, text, lineno, inliner,
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options={}, content=[]):
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"""
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This function creates an inline console input block as defined in the twitter bootstrap documentation
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overrides the default behaviour of the kbd role
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*usage:*
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:kbd:`<your code>`
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*Example:*
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:kbd:`<section>`
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This code is not highlighted
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"""
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new_element = nodes.literal(rawtext, text)
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new_element.set_class('kbd')
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return [new_element], []
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def code_role(name, rawtext, text, lineno, inliner,
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options={}, content=[]):
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"""
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This function creates an inline code block as defined in the twitter bootstrap documentation
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overrides the default behaviour of the code role
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*usage:*
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:code:`<your code>`
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*Example:*
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:code:`<section>`
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This code is not highlighted
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"""
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new_element = nodes.literal(rawtext, text)
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new_element.set_class('code')
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return [new_element], []
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def glyph_role(name, rawtext, text, lineno, inliner,
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options={}, content=[]):
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"""
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This function defines a glyph inline role that show a glyph icon from the
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twitter bootstrap framework
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*Usage:*
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:glyph:`<glyph_name>`
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*Example:*
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Love this music :glyph:`music` :)
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Can be subclassed to include a target
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*Example:*
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.. role:: story_time_glyph(glyph)
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:target: http://www.youtube.com/watch?v=5g8ykQLYnX0
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:class: small text-info
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Love this music :story_time_glyph:`music` :)
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"""
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target = options.get('target', None)
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glyph_name = 'glyphicon-{}'.format(text)
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if target:
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target = utils.unescape(target)
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new_element = nodes.reference(rawtext, ' ', refuri=target)
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else:
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new_element = nodes.container()
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classes = options.setdefault('class', [])
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classes += ['glyphicon', glyph_name]
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for custom_class in classes:
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new_element.set_class(custom_class)
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return [new_element], []
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glyph_role.options = {
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'target': rst.directives.unchanged,
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}
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glyph_role.content = False
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class Label(rst.Directive):
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'''
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generic Label directive class definition.
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This class define a directive that shows
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bootstrap Labels around its content
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*usage:*
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.. label-<label-type>::
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<Label content>
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*example:*
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.. label-default::
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This is a default label content
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'''
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has_content = True
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custom_class = ''
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def run(self):
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# First argument is the name of the glyph
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label_name = 'label-{}'.format(self.custom_class)
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# get the label content
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text = '\n'.join(self.content)
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# Create a new container element (div)
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new_element = nodes.container(text)
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# Update its content
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self.state.nested_parse(self.content, self.content_offset,
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new_element)
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# Set its custom bootstrap classes
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new_element['classes'] += ['label ', label_name]
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# Return one single element
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return [new_element]
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class DefaultLabel(Label):
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custom_class = 'default'
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class PrimaryLabel(Label):
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custom_class = 'primary'
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class SuccessLabel(Label):
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custom_class = 'success'
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class InfoLabel(Label):
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custom_class = 'info'
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class WarningLabel(Label):
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custom_class = 'warning'
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class DangerLabel(Label):
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custom_class = 'danger'
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class Panel(rst.Directive):
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"""
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generic Panel directive class definition.
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This class define a directive that shows
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bootstrap Labels around its content
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*usage:*
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.. panel-<panel-type>::
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:title: <title>
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<Panel content>
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*example:*
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.. panel-default::
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:title: panel title
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This is a default panel content
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"""
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has_content = True
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option_spec = {
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'title': rst.directives.unchanged,
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}
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custom_class = ''
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def run(self):
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# First argument is the name of the glyph
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panel_name = 'panel-{}'.format(self.custom_class)
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# get the label title
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title_text = self.options.get('title', self.custom_class.title())
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# get the label content
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text = '\n'.join(self.content)
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# Create the panel element
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panel_element = nodes.container()
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panel_element['classes'] += ['panel', panel_name]
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# Create the panel headings
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heading_element = nodes.container(title_text)
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title_nodes, messages = self.state.inline_text(title_text,
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self.lineno)
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title = nodes.paragraph(title_text, '', *title_nodes)
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heading_element.append(title)
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heading_element['classes'] += ['panel-heading']
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# Create a new container element (div)
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body_element = nodes.container(text)
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# Update its content
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self.state.nested_parse(self.content, self.content_offset,
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body_element)
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# Set its custom bootstrap classes
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body_element['classes'] += ['panel-body']
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# add the heading and body to the panel
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panel_element.append(heading_element)
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panel_element.append(body_element)
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# Return the panel element
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return [panel_element]
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class DefaultPanel(Panel):
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custom_class = 'default'
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class PrimaryPanel(Panel):
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custom_class = 'primary'
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class SuccessPanel(Panel):
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custom_class = 'success'
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class InfoPanel(Panel):
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custom_class = 'info'
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class WarningPanel(Panel):
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custom_class = 'warning'
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class DangerPanel(Panel):
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custom_class = 'danger'
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class Alert(rst.Directive):
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"""
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generic Alert directive class definition.
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This class define a directive that shows
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bootstrap Labels around its content
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*usage:*
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.. alert-<alert-type>::
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<alert content>
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*example:*
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.. alert-warning::
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This is a warning alert content
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"""
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has_content = True
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custom_class = ''
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def run(self):
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# First argument is the name of the glyph
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alert_name = 'alert-{}'.format(self.custom_class)
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# get the label content
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text = '\n'.join(self.content)
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# Create a new container element (div)
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new_element = nodes.compound(text)
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# Update its content
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self.state.nested_parse(self.content, self.content_offset,
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new_element)
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# Recurse inside its children and change the hyperlinks classes
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for child in new_element.traverse(include_self=False):
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if isinstance(child, nodes.reference):
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child.set_class('alert-link')
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# Set its custom bootstrap classes
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new_element['classes'] += ['alert ', alert_name]
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# Return one single element
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return [new_element]
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class SuccessAlert(Alert):
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custom_class = 'success'
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class InfoAlert(Alert):
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custom_class = 'info'
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class WarningAlert(Alert):
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custom_class = 'warning'
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class DangerAlert(Alert):
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custom_class = 'danger'
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class Media(rst.Directive):
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'''
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generic Media directive class definition.
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This class define a directive that shows
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bootstrap media image with text according
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to the media component on bootstrap
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*usage*:
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.. media:: <image_uri>
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:position: <position>
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:alt: <alt>
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:height: <height>
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:width: <width>
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:scale: <scale>
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:target: <target>
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<text content>
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*example*:
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.. media:: http://stuffkit.com/wp-content/uploads/2012/11/Worlds-Most-Beautiful-Lady-Camilla-Belle-HD-Photos-4.jpg
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:height: 750
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:width: 1000
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:scale: 20
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:target: www.google.com
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:alt: Camilla Belle
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:position: left
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This image is not mine. Credit goes to http://stuffkit.com
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'''
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has_content = True
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required_arguments = 1
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option_spec = {
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'position': str,
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'alt': rst.directives.unchanged,
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'height': rst.directives.length_or_unitless,
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'width': rst.directives.length_or_percentage_or_unitless,
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'scale': rst.directives.percentage,
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'target': rst.directives.unchanged_required,
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}
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def get_image_element(self):
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# Get the image url
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image_url = self.arguments[0]
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image_reference = rst.directives.uri(image_url)
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self.options['uri'] = image_reference
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reference_node = None
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messages = []
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if 'target' in self.options:
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block = rst.states.escape2null(
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self.options['target']).splitlines()
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block = [line for line in block]
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target_type, data = self.state.parse_target(
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block, self.block_text, self.lineno)
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if target_type == 'refuri':
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container_node = nodes.reference(refuri=data)
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elif target_type == 'refname':
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container_node = nodes.reference(
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refname=fully_normalize_name(data),
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name=whitespace_normalize_name(data))
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container_node.indirect_reference_name = data
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self.state.document.note_refname(container_node)
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else: # malformed target
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messages.append(data) # data is a system message
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del self.options['target']
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else:
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container_node = nodes.container()
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# get image position
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position = self.options.get('position', 'left')
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position_class = 'pull-{}'.format(position)
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container_node.set_class(position_class)
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image_node = nodes.image(self.block_text, **self.options)
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image_node['classes'] += ['media-object']
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container_node.append(image_node)
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return container_node
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def run(self):
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# now we get the content
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text = '\n'.join(self.content)
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# get image alternative text
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alternative_text = self.options.get('alternative-text', '')
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# get container element
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container_element = nodes.container()
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container_element['classes'] += ['media']
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# get image element
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image_element = self.get_image_element()
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# get body element
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body_element = nodes.container(text)
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body_element['classes'] += ['media-body']
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self.state.nested_parse(self.content, self.content_offset,
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body_element)
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container_element.append(image_element)
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container_element.append(body_element)
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return [container_element, ]
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def register_directives():
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rst.directives.register_directive('label-default', DefaultLabel)
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rst.directives.register_directive('label-primary', PrimaryLabel)
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rst.directives.register_directive('label-success', SuccessLabel)
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rst.directives.register_directive('label-info', InfoLabel)
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rst.directives.register_directive('label-warning', WarningLabel)
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rst.directives.register_directive('label-danger', DangerLabel)
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rst.directives.register_directive('panel-default', DefaultPanel)
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rst.directives.register_directive('panel-primary', PrimaryPanel)
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rst.directives.register_directive('panel-success', SuccessPanel)
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rst.directives.register_directive('panel-info', InfoPanel)
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rst.directives.register_directive('panel-warning', WarningPanel)
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rst.directives.register_directive('panel-danger', DangerPanel)
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rst.directives.register_directive('alert-success', SuccessAlert)
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rst.directives.register_directive('alert-info', InfoAlert)
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rst.directives.register_directive('alert-warning', WarningAlert)
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rst.directives.register_directive('alert-danger', DangerAlert)
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rst.directives.register_directive( 'media', Media )
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def register_roles():
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rst.roles.register_local_role('glyph', glyph_role)
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rst.roles.register_local_role('code', code_role)
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rst.roles.register_local_role('kbd', keyboard_role)
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def add_reader(readers):
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readers.reader_classes['rst'] = CleanRSTReader
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def register():
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register_directives()
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register_roles()
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signals.readers_init.connect(add_reader)
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