git / moonbite-network / forum_emoji.py · raw
"""Emoji for the community forum only (the rest of the site stays emoji-free).Unicode emoji in posts, titles and excerpts are drawn with the self-hostedTwemoji set in static/emoji/ (CC-BY 4.0, see static/emoji/NOTICE.txt), soevery visitor sees the same artwork and no third-party host is contacted.Discord-style shortcodes such as :rocket: work too, plus MoonBite's own:moonbite:. Everything here runs on text that is already HTML-escaped, andonly ever inserts <img> tags whose src is built from a file that exists."""from __future__ import annotationsimport osimport re_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "static", "emoji")_URL = "/static/emoji/"try: _NAMES = frozenset(f[:-4] for f in os.listdir(_DIR) if f.endswith(".svg"))except OSError: # emoji folder missing: fall back to the OS's own emoji font _NAMES = frozenset()_MAXLEN = max((n.count("-") + 1 for n in _NAMES), default=1)# MoonBite's own emoji (not Twemoji). shortcode -> file under static/emoji/custom/CUSTOM = {"moonbite": "custom/moonbite.svg"}# The picker's set, grouped like Discord's. (shortcode, emoji). Any other# emoji still renders when typed or pasted; this is just what the picker offers.PICKER = [ ("People", [ ("grinning", "😀"), ("smile", "😄"), ("joy", "😂"), ("rofl", "🤣"), ("wink", "😉"), ("blush", "😊"), ("heart_eyes", "😍"), ("star_struck", "🤩"), ("sunglasses", "😎"), ("thinking", "🤔"), ("raised_eyebrow", "🤨"), ("neutral_face", "😐"), ("rolling_eyes", "🙄"), ("smirk", "😏"), ("relieved", "😌"), ("sleeping", "😴"), ("exploding_head", "🤯"), ("partying_face", "🥳"), ("nerd", "🤓"), ("confused", "😕"), ("worried", "😟"), ("cry", "😢"), ("sob", "😭"), ("scream", "😱"), ("angry", "😠"), ("skull", "💀"), ("clown", "🤡"), ("ghost", "👻"), ("alien", "👽"), ("robot", "🤖"), ("eyes", "👀"), ("salute", "🫡"), ("melting_face", "🫠"), ("shushing_face", "🤫"), ("money_mouth", "🤑"), ]), ("Gestures", [ ("thumbsup", "👍"), ("thumbsdown", "👎"), ("ok_hand", "👌"), ("clap", "👏"), ("wave", "👋"), ("raised_hands", "🙌"), ("pray", "🙏"), ("handshake", "🤝"), ("muscle", "💪"), ("fist", "👊"), ("v", "✌️"), ("crossed_fingers", "🤞"), ("point_up", "☝️"), ("point_right", "👉"), ("point_down", "👇"), ("call_me", "🤙"), ("writing_hand", "✍️"), ("brain", "🧠"), ]), ("Hearts", [ ("heart", "❤️"), ("orange_heart", "🧡"), ("yellow_heart", "💛"), ("green_heart", "💚"), ("blue_heart", "💙"), ("purple_heart", "💜"), ("black_heart", "🖤"), ("white_heart", "🤍"), ("broken_heart", "💔"), ("sparkling_heart", "💖"), ("heart_on_fire", "❤️🔥"), ("100", "💯"), ]), ("Space", [ ("rocket", "🚀"), ("moon", "🌙"), ("full_moon", "🌕"), ("new_moon", "🌑"), ("crescent_moon", "🌙"), ("first_quarter_moon", "🌓"), ("waxing_crescent_moon", "🌒"), ("earth", "🌍"), ("star", "⭐"), ("star2", "🌟"), ("sparkles", "✨"), ("comet", "☄️"), ("milky_way", "🌌"), ("sunny", "☀️"), ("zap", "⚡"), ("fire", "🔥"), ("rainbow", "🌈"), ("telescope", "🔭"), ("satellite", "🛰️"), ("flying_saucer", "🛸"), ("astronaut", "🧑🚀"), ]), ("Mining & tech", [ ("pick", "⛏️"), ("hammer_and_pick", "⚒️"), ("hammer", "🔨"), ("wrench", "🔧"), ("gear", "⚙️"), ("computer", "💻"), ("desktop", "🖥️"), ("keyboard", "⌨️"), ("battery", "🔋"), ("electric_plug", "🔌"), ("bulb", "💡"), ("chart_up", "📈"), ("chart_down", "📉"), ("bar_chart", "📊"), ("coin", "🪙"), ("moneybag", "💰"), ("gem", "💎"), ("key", "🔑"), ("lock", "🔒"), ("unlock", "🔓"), ("shield", "🛡️"), ("link", "🔗"), ("chains", "⛓️"), ("package", "📦"), ("hourglass", "⏳"), ("stopwatch", "⏱️"), ("bell", "🔔"), ("mag", "🔍"), ("bug", "🐛"), ("test_tube", "🧪"), ("satellite_antenna", "📡"), ("globe", "🌐"), ]), ("Nature & food", [ ("whale", "🐋"), ("shark", "🦈"), ("dog", "🐶"), ("cat", "🐱"), ("fox", "🦊"), ("owl", "🦉"), ("bear", "🐻"), ("bull", "🐂"), ("frog", "🐸"), ("unicorn", "🦄"), ("seedling", "🌱"), ("evergreen_tree", "🌲"), ("cactus", "🌵"), ("mushroom", "🍄"), ("pizza", "🍕"), ("cookie", "🍪"), ("doughnut", "🍩"), ("coffee", "☕"), ("beer", "🍺"), ("cheese", "🧀"), ("popcorn", "🍿"), ]), ("Symbols", [ ("white_check_mark", "✅"), ("x", "❌"), ("warning", "⚠️"), ("no_entry", "⛔"), ("question", "❓"), ("exclamation", "❗"), ("tada", "🎉"), ("confetti_ball", "🎊"), ("trophy", "🏆"), ("medal", "🏅"), ("crown", "👑"), ("dart", "🎯"), ("game_die", "🎲"), ("pushpin", "📌"), ("memo", "📝"), ("books", "📚"), ("speech_balloon", "💬"), ("loudspeaker", "📢"), ("arrow_up", "⬆️"), ("arrow_down", "⬇️"), ("arrows_counterclockwise", "🔄"), ("new", "🆕"), ("free", "🆓"), ("sos", "🆘"), ]),]# Shortcode -> emoji, from the picker plus common aliases people type.SHORTCODES = {name: ch for _, items in PICKER for name, ch in items}SHORTCODES.update({ "+1": "👍", "-1": "👎", "like": "👍", "joy_cat": "😹", "laughing": "😆", "lol": "😂", "pickaxe": "⛏️", "ok": "👌", "check": "✅", "money": "💰", "diamond": "💎", "gm": "🌅", "wagmi": "🚀", "lightning": "⚡", "flame": "🔥", "party": "🎉", "hundred": "💯",})_SHORT_RE = re.compile(r":([a-z0-9_+\-]{1,32}):")_FE0F, _ZWJ = "️", ""def key(seq: str) -> str: """Twemoji filename for an emoji sequence: hex codepoints joined by '-', with U+FE0F dropped unless the sequence has a zero-width joiner.""" if _ZWJ not in seq: seq = seq.replace(_FE0F, "") return "-".join(f"{ord(c):x}" for c in seq)def _img(src: str, alt: str, title: str = "") -> str: t = f' title=":{title}:"' if title else "" return (f'<img class="fx-emoji" src="{_URL}{src}" alt="{alt}"{t} ' f'draggable="false" decoding="async">')def _candidate(text: str, i: int) -> bool: o = ord(text[i]) # Below U+2190 only keycaps and text symbols explicitly asking for emoji # presentation (FE0F), so plain digits, '#', (c) and (r) stay text. return o >= 0x2190 or (i + 1 < len(text) and text[i + 1] in (_FE0F, "⃣"))def _scan(text: str): """Yield (is_emoji, piece) runs over `text`, longest match first.""" i, n, start = 0, len(text), 0 while i < n: if _candidate(text, i): for length in range(min(_MAXLEN + 2, n - i), 0, -1): seq = text[i:i + length] if key(seq) in _NAMES: if start < i: yield False, text[start:i] yield True, seq i += length start = i break else: i += 1 else: i += 1 if start < n: yield False, text[start:]def _shortcodes(escaped: str) -> str: def sub(m): name = m.group(1) if name in CUSTOM: return _img(CUSTOM[name], f":{name}:", name) ch = SHORTCODES.get(name) if ch and key(ch) in _NAMES: return _img(key(ch) + ".svg", ch, name) return m.group(0) return _SHORT_RE.sub(sub, escaped)def emojify(escaped: str) -> str: """Replace emoji and known :shortcodes: in already-escaped text with Twemoji images. Text that isn't an emoji passes through untouched.""" if not _NAMES: return escaped out = [] for is_emoji, piece in _scan(escaped): if is_emoji: out.append(_img(key(piece) + ".svg", piece)) else: out.append(_shortcodes(piece)) return "".join(out)def emoji_only(text: str, limit: int = 8) -> bool: """True when `text` is nothing but 1..limit emoji (Discord-style jumbo).""" text = _SHORT_RE.sub(lambda m: "\x00" if (m.group(1) in CUSTOM or m.group(1) in SHORTCODES) else m.group(0), text.strip()) count = text.count("\x00") rest = [] for is_emoji, piece in _scan(text.replace("\x00", "")): if is_emoji: count += 1 else: rest.append(piece) return 0 < count <= limit and "".join(rest).strip() == ""def picker_data() -> list: """Picker groups for the composer: [{"name", "items": [{s, c, k}]}].""" groups = [{"name": "MoonBite", "items": [{"s": n, "c": f":{n}:", "k": f} for n, f in CUSTOM.items()]}] for name, items in PICKER: groups.append({"name": name, "items": [ {"s": s, "c": ch, "k": key(ch) + ".svg"} for s, ch in items if key(ch) in _NAMES ]}) return groups