mirror of
https://github.com/Abdess/retroarch_system.git
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The README ran 211 lines and 2,000 words: five commands with options, an 18-row download table, coverage figures and the build commands, all before the help. It now says what the project does, gives the line that installs for Windows and for the rest, shows it, lists the six ZIPs and the setups that install by command, and leads to the site, where the figures and every option live. The build commands sit in a closed block. No personal pronoun is left in its text.
350 lines
13 KiB
Python
350 lines
13 KiB
Python
#!/usr/bin/env python3
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"""Each built page as Markdown, for the assistants that read the site.
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An assistant asked to help with BIOS files reads a page and answers from
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it. The HTML carries navigation, icons, buttons and scripts around the
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words. The Markdown copy carries the words, the tables, the commands and
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the links, at `<page>/index.md` beside `<page>/index.html`. Every page's
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head names it (`<link rel="alternate" type="text/markdown">`, set in
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website/astro.config.mjs), and llms.txt says the convention.
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`llms-full.txt` joins the Markdown of the pages a setup is done with:
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the start pages, the guides and each setup's page.
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Run by the Astro build once the pages are written (astro.config.mjs),
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on the built site:
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python scripts/site_markdown.py website/dist
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"""
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from __future__ import annotations
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import argparse
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import os
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import re
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import sys
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from html.parser import HTMLParser
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from pathlib import Path
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sys.path.insert(0, os.path.dirname(__file__))
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from common import run_cli # noqa: E402
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SITE = "https://abdess.github.io"
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BASE = "/retrobios/"
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# Elements whose content is never words a reader needs.
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SKIPPED = frozenset({"script", "style", "svg", "button", "nav", "template", "noscript", "video"})
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HEADINGS = {f"h{n}": n for n in range(1, 7)}
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# The pages llms-full.txt joins, by path under the site, in reading order.
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FULL_PAGES = ("", "which-pack/", "wiki/what-are-bios-files/", "wiki/first-install/",
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"wiki/troubleshooting/", "wiki/faq/", "wiki/installer/", "wiki/legal/",
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"wiki/privacy/")
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class _Converter(HTMLParser):
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"""The Markdown of a page's article: its title and its content."""
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def __init__(self, page_url: str) -> None:
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super().__init__(convert_charrefs=True)
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self.page_url = page_url
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self.out: list[str] = []
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self.skip = 0
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self.inside = 0
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self.depth_stack: list[str] = []
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self.lists: list[list[int]] = []
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self.pre = 0
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self.links: list[str | None] = []
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self.row: list[str] | None = None
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self.cell: list[str] | None = None
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self.table: list[list[str]] | None = None
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self.header_rows = 0
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self.title = ""
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self._in_title = False
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# A tab's name by its id, read from the tab list, said above its
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# panel: a command under the wrong OS is the answer an assistant
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# gets wrong.
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self.tab_names: dict[str, str] = {}
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self._tab: str | None = None
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self._card = False
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# Output
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def _emit(self, text: str) -> None:
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if self.cell is not None:
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self.cell.append(text)
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else:
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self.out.append(text)
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def _block(self) -> None:
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if self.cell is not None:
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self.cell.append(" ")
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return
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joined = "".join(self.out)
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if joined and not joined.endswith("\n\n"):
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self.out.append("\n" if joined.endswith("\n") else "\n\n")
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# Parsing
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def handle_starttag(self, tag: str, attrs: list[tuple[str, str | None]]) -> None:
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attr = {key: value or "" for key, value in attrs}
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classes = set(attr.get("class", "").split())
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if tag == "h1" and attr.get("id") == "_top":
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self._in_title = True
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if not self.inside:
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if "sl-markdown-content" in classes:
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self.inside = 1
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self.depth_stack = [tag]
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return
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if tag not in ("br", "img", "hr", "input", "meta", "link", "source", "wbr"):
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self.depth_stack.append(tag)
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if attr.get("role") == "tablist":
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self.skip += 1
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if tag == "a" or attr.get("role") == "tab":
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pass
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return
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if self.skip and attr.get("role") == "tab" and attr.get("id"):
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self._tab = attr["id"]
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self.tab_names[self._tab] = ""
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self.skip += 1
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return
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if attr.get("role") == "tabpanel" and not self.skip:
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self._block()
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name = self.tab_names.get(attr.get("aria-labelledby", ""), "").strip()
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if name:
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self._emit(f"**{' '.join(name.split())}:**")
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self._block()
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return
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if self.skip or tag in SKIPPED or attr.get("aria-hidden") == "true" \
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or classes & {"sr-only", "sl-anchor-link", "copy", "rb-anchor"}:
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if tag not in ("br", "img", "hr", "input", "wbr"):
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self.skip += 1
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return
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if self.pre:
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# Inside a code block a line is a div, never a paragraph.
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if tag == "div" and "ec-line" in classes and not "".join(self.out[-1:]).endswith("```\n"):
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self._emit("\n")
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return
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if tag in HEADINGS:
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self._block()
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self._emit("#" * HEADINGS[tag] + " ")
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elif tag in ("p", "div", "section", "figure", "details", "blockquote", "dl"):
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self._block()
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elif tag == "summary":
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self._block()
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self._emit("**")
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elif tag in ("ul", "ol"):
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self._block()
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self.lists.append([0 if tag == "ol" else -1])
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elif tag == "li":
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if self.out and not "".join(self.out[-1:]).endswith("\n"):
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self._emit("\n")
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level = len(self.lists) - 1
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marker = "-"
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if self.lists and self.lists[-1][0] >= 0:
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self.lists[-1][0] += 1
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marker = f"{self.lists[-1][0]}."
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self._emit(" " * max(level, 0) + marker + " ")
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elif tag == "pre":
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self._block()
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self.pre += 1
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self._emit("```\n")
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elif tag == "code" and not self.pre:
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self._emit("`")
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elif tag in ("strong", "b"):
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self._emit("**")
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elif tag in ("em", "i"):
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self._emit("*")
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elif tag == "a" and "rb-card" in classes:
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# A card of a grid: one list line each, its name then what it
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# says, instead of one run-on line of links.
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href = attr.get("href", "")
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href = SITE + href if href.startswith("/") else href
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self._block()
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self._emit("- [")
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self.links.append(href or None)
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self._card = True
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elif tag == "span" and self._card and self.links:
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self._emit(": ")
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elif tag == "a":
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href = attr.get("href", "")
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if href.startswith("#"):
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href = self.page_url + href
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elif href.startswith("/"):
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href = SITE + href
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self.links.append(href or None)
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if href:
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self._emit("[")
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elif tag == "img":
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alt = attr.get("alt", "").strip()
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if alt:
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self._emit(alt)
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elif tag == "table":
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self._block()
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self.table, self.header_rows = [], 0
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elif tag == "tr" and self.table is not None:
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self.row = []
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elif tag in ("td", "th") and self.row is not None:
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self.cell = []
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if tag == "th" and not self.row:
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self.header_rows = max(self.header_rows, len(self.table or []) + 1)
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elif tag == "dt":
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self._block()
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self._emit("**")
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elif tag == "dd":
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self._emit(": ")
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def handle_endtag(self, tag: str) -> None:
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if tag == "h1" and self._in_title:
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self._in_title = False
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if not self.inside:
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return
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if self.depth_stack:
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self.depth_stack.pop()
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if not self.depth_stack:
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self.inside = 0
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return
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if self.skip:
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if tag not in ("br", "img", "hr", "input", "wbr"):
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self.skip -= 1
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if tag == "a" and self._tab:
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self._tab = None
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return
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if self.pre and tag != "pre":
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return
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if tag in HEADINGS or tag in ("p", "section", "figure", "details", "blockquote", "dl"):
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self._block()
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elif tag == "summary":
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self._emit("**")
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self._block()
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elif tag in ("ul", "ol"):
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if self.lists:
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self.lists.pop()
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self._block()
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elif tag == "pre":
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self.pre -= 1
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self._emit("\n```")
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self._block()
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elif tag == "code" and not self.pre:
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self._emit("`")
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elif tag in ("strong", "b", "dt"):
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self._emit("**")
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elif tag in ("em", "i"):
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self._emit("*")
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elif tag == "a":
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href = self.links.pop() if self.links else None
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if href:
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self._emit(f"]({href})")
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if self._card:
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self._card = False
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self._emit("\n")
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elif tag in ("td", "th") and self.cell is not None and self.row is not None:
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self.row.append(" ".join("".join(self.cell).split()).replace("|", "\\|"))
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self.cell = None
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elif tag == "tr" and self.row is not None and self.table is not None:
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self.table.append(self.row)
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self.row = None
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elif tag == "table" and self.table is not None:
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rows, self.table = self.table, None
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if rows:
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width = max(len(r) for r in rows)
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rows = [r + [""] * (width - len(r)) for r in rows]
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head = rows[0] if self.header_rows else [""] * width
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body = rows[1:] if self.header_rows else rows
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lines = ["| " + " | ".join(head) + " |", "|" + "---|" * width]
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lines += ["| " + " | ".join(r) + " |" for r in body]
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self.out.append("\n".join(lines))
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self._block()
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elif tag == "br":
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self._emit("\n" if self.pre else " \n")
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def handle_startendtag(self, tag: str, attrs: list[tuple[str, str | None]]) -> None:
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self.handle_starttag(tag, attrs)
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if tag not in ("img", "br", "hr", "input", "wbr", "meta", "link", "source"):
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self.handle_endtag(tag)
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def handle_data(self, data: str) -> None:
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if self._in_title and not self.inside:
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self.title += data
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return
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if self._tab is not None:
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self.tab_names[self._tab] += data
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if not self.inside or self.skip:
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return
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if self.pre:
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# The whitespace between <pre> and its first line is no line.
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if data.strip() or not "".join(self.out[-1:]).endswith("```\n"):
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self._emit(data)
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return
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text = re.sub(r"\s+", " ", data)
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if text.strip() or (text and self.out and not "".join(self.out[-1:]).endswith((" ", "\n"))):
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self._emit(text)
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def markdown(self) -> str:
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body = "".join(self.out)
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body = re.sub(r"[ \t]+\n", "\n", body)
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body = re.sub(r"\n{3,}", "\n\n", body).strip()
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title = " ".join(self.title.split())
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return (f"# {title}\n\n" if title else "") + f"Source: {self.page_url}\n\n{body}\n"
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def page_markdown(html: str, page_url: str) -> str:
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converter = _Converter(page_url)
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converter.feed(html)
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converter.close()
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return converter.markdown()
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def convert_site(dist: Path) -> int:
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"""Write index.md beside every page's index.html, then llms-full.txt."""
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written = 0
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for html_path in sorted(dist.rglob("index.html")):
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relative = html_path.parent.relative_to(dist).as_posix()
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page = "" if relative == "." else f"{relative}/"
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url = f"{SITE}{BASE}{page}"
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text = page_markdown(html_path.read_text(encoding="utf-8"), url)
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(html_path.parent / "index.md").write_text(text, encoding="utf-8")
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written += 1
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write_full(dist)
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return written
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def write_full(dist: Path) -> None:
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"""llms-full.txt from the pages' Markdown copies."""
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parts = ["# RetroBIOS: the guides in one file", "",
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"> The pages a setup is done with, in reading order. Every page of the site also has "
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"its own Markdown copy at `<page>/index.md`.", ""]
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for page in FULL_PAGES:
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md = dist / page / "index.md"
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if md.is_file():
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parts += [md.read_text(encoding="utf-8").rstrip(), "", "---", ""]
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# Each setup's own page (the setups the picker lists, not the parts a
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# long page is cut into), up to its reference of every file: what to
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# do and where, not the full lists, which its own copy keeps. All of
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# them was 6.9 MB, past what an assistant reads at once.
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import json # noqa: PLC0415
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index = dist / "data" / "picker" / "index.json"
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setups = [str(item["platform"]) for item in json.loads(index.read_text(encoding="utf-8"))] \
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if index.is_file() else []
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for setup in [*setups, "linux-handhelds"]:
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md = dist / "platforms" / setup / "index.md"
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if md.is_file():
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text = md.read_text(encoding="utf-8")
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parts += [text.split("\n## Reference", 1)[0].rstrip(), "", "---", ""]
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(dist / "llms-full.txt").write_text("\n".join(parts).rstrip() + "\n", encoding="utf-8")
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def main() -> int:
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parser = argparse.ArgumentParser(description=__doc__.split("\n\n")[0], allow_abbrev=False)
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parser.add_argument("dist", type=Path, help="the built site (website/dist)")
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args = parser.parse_args()
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if not (args.dist / "index.html").is_file():
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print(f"error: {args.dist} holds no built site", file=sys.stderr)
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return 1
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count = convert_site(args.dist)
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print(f"Markdown copies: {count} pages, llms-full.txt", file=sys.stderr)
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return 0
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if __name__ == "__main__":
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run_cli(main)
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