Table cell grid
A rowspan and a colspan that claim the same slot, found by laying the table out as a grid. The invalid scope value is reported by the schema and by a Schematron rule.
Table cell grid
examples/showcase/table-grid.html<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Table grid</title>
</head>
<body>
<table>
<caption>Build matrix</caption>
<tr><th scope="rows">Target</th><th>Status</th></tr>
<tr><td>linux</td><td rowspan="2">ok</td></tr>
<tr><td colspan="2">macos</td></tr>
</table>
</body>
</html>error 10:9 schema.html5 invalid value `rows` for attribute `scope` at 10:9 error 10:9 assertion.tables.th-scope-enum A th element's scope attribute must be one of row, col, rowgroup, or colgroup. error 11:23 tables.integrity Table cell is overlapped by later table cell. error 12:9 tables.integrity Table cell overlaps an earlier table cell. 4 errors, 0 warnings