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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 | """Shared Markdown table pre-normalization for platform renderers."""
from __future__ import annotations
import re
_TABLE_SEP_RE = re.compile(r"^\s*\|?\s*:?-{3,}:?\s*(\|\s*:?-{3,}:?\s*)+\|?\s*$")
_FENCE_RE = re.compile(r"^\s*```")
def _is_gfm_table_header_line(line: str) -> bool:
"""Return whether a line looks like a GFM table header."""
if "|" not in line:
return False
if _TABLE_SEP_RE.match(line):
return False
parts = [part.strip() for part in line.strip().strip("|").split("|")]
return len([part for part in parts if part]) >= 2
def normalize_gfm_tables(text: str) -> str:
"""Insert blank lines before detected tables outside fenced code blocks."""
lines = text.splitlines()
if len(lines) < 2:
return text
out_lines: list[str] = []
in_fence = False
for idx, line in enumerate(lines):
if _FENCE_RE.match(line):
in_fence = not in_fence
out_lines.append(line)
continue
if (
not in_fence
and idx + 1 < len(lines)
and _is_gfm_table_header_line(line)
and _TABLE_SEP_RE.match(lines[idx + 1])
and out_lines
and out_lines[-1].strip() != ""
):
indent_match = re.match(r"^(\s*)", line)
out_lines.append(indent_match.group(1) if indent_match else "")
out_lines.append(line)
return "\n".join(out_lines)
|