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0157ac7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 | """Discord markdown utilities.
Discord uses standard markdown: **bold**, *italic*, `code`, ```code block```.
Used by the message handler and Discord platform adapter.
"""
from markdown_it import MarkdownIt
from .markdown_tables import normalize_gfm_tables
# Discord escapes: \ * _ ` ~ | >
DISCORD_SPECIAL = set("\\*_`~|>")
_MD = MarkdownIt("commonmark", {"html": False, "breaks": False})
_MD.enable("strikethrough")
_MD.enable("table")
def escape_discord(text: str) -> str:
"""Escape text for Discord markdown (bold, italic, etc.)."""
return "".join(f"\\{ch}" if ch in DISCORD_SPECIAL else ch for ch in text)
def escape_discord_code(text: str) -> str:
"""Escape text for Discord code spans/blocks."""
return text.replace("\\", "\\\\").replace("`", "\\`")
def discord_bold(text: str) -> str:
"""Format text as bold in Discord (uses **)."""
return f"**{escape_discord(text)}**"
def discord_code_inline(text: str) -> str:
"""Format text as inline code in Discord."""
return f"`{escape_discord_code(text)}`"
def format_status_discord(label: str, suffix: str | None = None) -> str:
"""Format a status message for Discord (label in bold, optional suffix)."""
base = discord_bold(label)
if suffix:
return f"{base} {escape_discord(suffix)}"
return base
def format_status(emoji: str, label: str, suffix: str | None = None) -> str:
"""Format a status message with emoji for Discord (matches Telegram API)."""
base = f"{emoji} {discord_bold(label)}"
if suffix:
return f"{base} {escape_discord(suffix)}"
return base
def render_markdown_to_discord(text: str) -> str:
"""Render common Markdown into Discord-compatible format."""
if not text:
return ""
text = normalize_gfm_tables(text)
tokens = _MD.parse(text)
def render_inline_table_plain(children) -> str:
out: list[str] = []
for tok in children:
if tok.type == "text" or tok.type == "code_inline":
out.append(tok.content)
elif tok.type in {"softbreak", "hardbreak"}:
out.append(" ")
elif tok.type == "image" and tok.content:
out.append(tok.content)
return "".join(out)
def render_inline(children) -> str:
out: list[str] = []
i = 0
while i < len(children):
tok = children[i]
t = tok.type
if t == "text":
out.append(escape_discord(tok.content))
elif t in {"softbreak", "hardbreak"}:
out.append("\n")
elif t == "em_open" or t == "em_close":
out.append("*")
elif t == "strong_open" or t == "strong_close":
out.append("**")
elif t == "s_open" or t == "s_close":
out.append("~~")
elif t == "code_inline":
out.append(f"`{escape_discord_code(tok.content)}`")
elif t == "link_open":
href = ""
if tok.attrs:
if isinstance(tok.attrs, dict):
href = tok.attrs.get("href", "")
else:
for key, val in tok.attrs:
if key == "href":
href = val
break
inner_tokens = []
i += 1
while i < len(children) and children[i].type != "link_close":
inner_tokens.append(children[i])
i += 1
link_text = ""
for child in inner_tokens:
if child.type == "text" or child.type == "code_inline":
link_text += child.content
out.append(f"[{escape_discord(link_text)}]({href})")
elif t == "image":
href = ""
alt = tok.content or ""
if tok.attrs:
if isinstance(tok.attrs, dict):
href = tok.attrs.get("src", "")
else:
for key, val in tok.attrs:
if key == "src":
href = val
break
if alt:
out.append(f"{escape_discord(alt)} ({href})")
else:
out.append(href)
else:
out.append(escape_discord(tok.content or ""))
i += 1
return "".join(out)
out: list[str] = []
list_stack: list[dict] = []
pending_prefix: str | None = None
blockquote_level = 0
in_heading = False
def apply_blockquote(val: str) -> str:
if blockquote_level <= 0:
return val
prefix = "> " * blockquote_level
return prefix + val.replace("\n", "\n" + prefix)
i = 0
while i < len(tokens):
tok = tokens[i]
t = tok.type
if t == "paragraph_open":
pass
elif t == "paragraph_close":
out.append("\n")
elif t == "heading_open":
in_heading = True
elif t == "heading_close":
in_heading = False
out.append("\n")
elif t == "bullet_list_open":
list_stack.append({"type": "bullet", "index": 1})
elif t == "bullet_list_close":
if list_stack:
list_stack.pop()
out.append("\n")
elif t == "ordered_list_open":
start = 1
if tok.attrs:
if isinstance(tok.attrs, dict):
val = tok.attrs.get("start")
if val is not None:
try:
start = int(val)
except TypeError, ValueError:
start = 1
else:
for key, val in tok.attrs:
if key == "start":
try:
start = int(val)
except TypeError, ValueError:
start = 1
break
list_stack.append({"type": "ordered", "index": start})
elif t == "ordered_list_close":
if list_stack:
list_stack.pop()
out.append("\n")
elif t == "list_item_open":
if list_stack:
top = list_stack[-1]
if top["type"] == "bullet":
pending_prefix = "- "
else:
pending_prefix = f"{top['index']}. "
top["index"] += 1
elif t == "list_item_close":
out.append("\n")
elif t == "blockquote_open":
blockquote_level += 1
elif t == "blockquote_close":
blockquote_level = max(0, blockquote_level - 1)
out.append("\n")
elif t == "table_open":
if pending_prefix:
out.append(apply_blockquote(pending_prefix.rstrip()))
out.append("\n")
pending_prefix = None
rows: list[list[str]] = []
row_is_header: list[bool] = []
j = i + 1
in_thead = False
in_row = False
current_row: list[str] = []
current_row_header = False
in_cell = False
cell_parts: list[str] = []
while j < len(tokens):
tt = tokens[j].type
if tt == "thead_open":
in_thead = True
elif tt == "thead_close":
in_thead = False
elif tt == "tr_open":
in_row = True
current_row = []
current_row_header = in_thead
elif tt in {"th_open", "td_open"}:
in_cell = True
cell_parts = []
elif tt == "inline" and in_cell:
cell_parts.append(
render_inline_table_plain(tokens[j].children or [])
)
elif tt in {"th_close", "td_close"} and in_cell:
cell = " ".join(cell_parts).strip()
current_row.append(cell)
in_cell = False
cell_parts = []
elif tt == "tr_close" and in_row:
rows.append(current_row)
row_is_header.append(bool(current_row_header))
in_row = False
elif tt == "table_close":
break
j += 1
if rows:
col_count = max((len(r) for r in rows), default=0)
norm_rows: list[list[str]] = []
for r in rows:
if len(r) < col_count:
r = r + [""] * (col_count - len(r))
norm_rows.append(r)
widths: list[int] = []
for c in range(col_count):
w = max((len(r[c]) for r in norm_rows), default=0)
widths.append(max(w, 3))
def fmt_row(
r: list[str], _w: list[int] = widths, _c: int = col_count
) -> str:
cells = [r[c].ljust(_w[c]) for c in range(_c)]
return "| " + " | ".join(cells) + " |"
def fmt_sep(_w: list[int] = widths, _c: int = col_count) -> str:
cells = ["-" * _w[c] for c in range(_c)]
return "| " + " | ".join(cells) + " |"
last_header_idx = -1
for idx, is_h in enumerate(row_is_header):
if is_h:
last_header_idx = idx
lines: list[str] = []
for idx, r in enumerate(norm_rows):
lines.append(fmt_row(r))
if idx == last_header_idx:
lines.append(fmt_sep())
table_text = "\n".join(lines).rstrip()
out.append(f"```\n{escape_discord_code(table_text)}\n```")
out.append("\n")
i = j + 1
continue
elif t in {"code_block", "fence"}:
code = escape_discord_code(tok.content.rstrip("\n"))
out.append(f"```\n{code}\n```")
out.append("\n")
elif t == "inline":
rendered = render_inline(tok.children or [])
if in_heading:
rendered = f"**{render_inline(tok.children or [])}**"
if pending_prefix:
rendered = pending_prefix + rendered
pending_prefix = None
rendered = apply_blockquote(rendered)
out.append(rendered)
else:
if tok.content:
out.append(escape_discord(tok.content))
i += 1
return "".join(out).rstrip()
__all__ = [
"discord_bold",
"discord_code_inline",
"escape_discord",
"escape_discord_code",
"format_status",
"format_status_discord",
"render_markdown_to_discord",
]
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