Doclang Schematron Validation Rules (XSLT 3.0) List must have ldiv as first element after optional element head (property elements: label, thread, xref, href, layer, location, caption, description, summary, custom). Found: Table and index must have cell-starting token as first element after optional element head (property elements: label, thread, xref, href, layer, location, caption, description, summary, custom). Found: Table and index must follow the rectangular rule: all rows must have the same number of cells. First row has cells, but at least one other row has a different count. Each row should have the same count of cell-starting tokens (fcel, ecel, ched, rhed, corn, srow, lcel, ucel, xcel) before each nl element. Property elements in the element head (label, thread, xref, href, layer, location, caption, description, summary, custom) must appear before any non-whitespace text content. Found non-whitespace text before element head: '' Element head must not contain both xref and href elements; they are mutually exclusive. Element xref references thread_id="" but no thread element defines that id. Location value must satisfy 0 <= value < axis_limit. Found value=, axis_limit=, axis=, location-index=. Location block must satisfy x0_norm <= x1_norm and y0_norm <= y1_norm, where *_norm is each coordinate normalized by its effective resolution. Found: x0=, x0_res=, x0_norm=, x1=, x1_res=, x1_norm=, y0=, y0_res=, y0_norm=, y1=, y1_res=, y1_norm=. All thread elements with the same thread_id must use the same host element type (e.g. all text, not text and picture). Check thread_id values for mixed types. In list items (virtual text), property elements in the element head (label, thread, xref, href, layer, location, caption, description, summary, custom) must appear before any non-whitespace text content. Found non-whitespace text before element head: '' In table and index cells (virtual text), property elements in the element head (label, thread, xref, href, layer, location, caption, description, summary, custom) must appear before any non-whitespace text content. Found non-whitespace text before element head: '' field_heading and field_item must be descendants of field_region. field_heading and field_item must be descendants of field_region. key and value must be descendants of field_item. key and value must be descendants of field_item. A field_item may contain at most one own descendant key. Keys that belong to nested field_item descendants are excluded from this count. Found own-key-count=. Element tabular is only allowed in picture with class="chart". Element src must be the first element of the picture body when present. Element tabular must immediately follow src when src is present, otherwise it may be the first body element.