Files
zulip/zerver/lib/markdown/help_relative_links.py
Mohit Gupta 3f5fc13491 refactor: Rename zerver.lib.bugdown to zerver.lib.markdown .
This commit is first of few commita which aim to change all the
bugdown references to markdown. This commits rename the files,
file path mentions and change the imports.
Variables and other references to bugdown will be renamed in susequent
commits.
2020-06-26 17:08:37 -07:00

110 lines
3.8 KiB
Python

import re
from typing import Any, Dict, List, Optional
from typing.re import Match
import markdown
from markdown.preprocessors import Preprocessor
# There is a lot of duplicated code between this file and
# help_settings_links.py. So if you're making a change here consider making
# it there as well.
REGEXP = re.compile(r'\{relative\|(?P<link_type>.*?)\|(?P<key>.*?)\}')
gear_info = {
# The pattern is key: [name, link]
# key is from REGEXP: `{relative|gear|key}`
# name is what the item is called in the gear menu: `Select **name**.`
# link is used for relative links: `Select [name](link).`
'manage-streams': ['Manage streams', '/#streams/subscribed'],
'settings': ['Settings', '/#settings/your-account'],
'manage-organization': ['Manage organization', '/#organization/organization-profile'],
'integrations': ['Integrations', '/integrations'],
'stats': ['Statistics', '/stats'],
'plans': ['Plans and pricing', '/plans'],
'billing': ['Billing', '/billing'],
'invite': ['Invite users', '/#invite'],
}
gear_instructions = """
1. From your desktop, click on the **gear**
(<i class="fa fa-cog"></i>) in the upper right corner.
1. Select %(item)s.
"""
def gear_handle_match(key: str) -> str:
if relative_help_links:
item = f'[{gear_info[key][0]}]({gear_info[key][1]})'
else:
item = f'**{gear_info[key][0]}**'
return gear_instructions % {'item': item}
stream_info = {
'all': ['All streams', '/#streams/all'],
'subscribed': ['Your streams', '/#streams/subscribed'],
}
stream_instructions_no_link = """
1. From your desktop, click on the **gear**
(<i class="fa fa-cog"></i>) in the upper right corner.
1. Click **Manage streams**.
"""
def stream_handle_match(key: str) -> str:
if relative_help_links:
return f"1. Go to [{stream_info[key][0]}]({stream_info[key][1]})."
if key == 'all':
return stream_instructions_no_link + "\n\n1. Click **All streams** in the upper left."
return stream_instructions_no_link
LINK_TYPE_HANDLERS = {
'gear': gear_handle_match,
'stream': stream_handle_match,
}
class RelativeLinksHelpExtension(markdown.Extension):
def extendMarkdown(self, md: markdown.Markdown, md_globals: Dict[str, Any]) -> None:
""" Add RelativeLinksHelpExtension to the Markdown instance. """
md.registerExtension(self)
md.preprocessors.add('help_relative_links', RelativeLinks(), '_begin')
relative_help_links: Optional[bool] = None
def set_relative_help_links(value: bool) -> None:
global relative_help_links
relative_help_links = value
class RelativeLinks(Preprocessor):
def run(self, lines: List[str]) -> List[str]:
done = False
while not done:
for line in lines:
loc = lines.index(line)
match = REGEXP.search(line)
if match:
text = [self.handleMatch(match)]
# The line that contains the directive to include the macro
# may be preceded or followed by text or tags, in that case
# we need to make sure that any preceding or following text
# stays the same.
line_split = REGEXP.split(line, maxsplit=0)
preceding = line_split[0]
following = line_split[-1]
text = [preceding] + text + [following]
lines = lines[:loc] + text + lines[loc+1:]
break
else:
done = True
return lines
def handleMatch(self, match: Match[str]) -> str:
return LINK_TYPE_HANDLERS[match.group('link_type')](match.group('key'))
def makeExtension(*args: Any, **kwargs: Any) -> RelativeLinksHelpExtension:
return RelativeLinksHelpExtension(*args, **kwargs)