File size: 2,362 Bytes
37fb2b9 | 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 | # SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: OpenMDW-1.1
"""Render titles explicitly declared by native chart metadata as table captions."""
import re
from html import escape
def transform(text):
changed = 0
def chart(m):
nonlocal changed
body = m[2]
if "<chart" in body:
return m[0]
title = re.search(r"(?m)^title:[ \t]*([^\n]*)$", body)
if not title:
return m[0]
title_text = title[1].strip()
if not title_text:
return m[0]
count = 0
pattern = re.compile(
r"(?m)^\|[^\n]*\|[ \t]*\n\|[ \t:|\-]+\|[ \t]*\n(?:\|[^\n]*\|[ \t]*(?:\n|$))+"
)
def table(t):
nonlocal count
raw = t[0]
if r"\|" in raw or "`" in raw:
return raw
lines = [a.strip() for a in raw.strip().splitlines()]
cells = [[c.strip() for c in line.strip("|").split("|")] for line in lines]
if (
len(cells) < 3
or any(len(row) != len(cells[0]) for row in cells)
or any(
not re.fullmatch(r":?-+:?", c.replace(" ", "")) for c in cells[1]
)
):
return raw
count += 1
result = (
"<table><caption>"
+ escape(title_text)
+ "</caption><thead><tr>"
+ "".join('<th scope="col">' + escape(c) + "</th>" for c in cells[0])
+ "</tr></thead><tbody>"
)
result += (
"".join(
"<tr>"
+ "".join("<td>" + escape(c) + "</td>" for c in row)
+ "</tr>"
for row in cells[2:]
)
+ "</tbody></table>\n"
)
return result
new = pattern.sub(table, body)
if not count:
return m[0]
# The title is rendered in its associated captions, retaining text and roles.
new = re.sub(r"(?m)^title:[ \t]*[^\n]*\n?", "", new, count=1)
changed += count
return m[1] + new + m[3]
out = re.sub(r"(<chart\b[^>]*>)(.*?)(</chart>)", chart, text, flags=re.S)
return out, changed
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