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