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[css2] Modifications to row height calculations to make spec (1) more in line with PR but (2) not blatantly inadequate. More statements about what is not specified by CSS2. removed some commented text
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‎css2/tables.src‎

Lines changed: 31 additions & 35 deletions
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html lang="en">
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<!-- $Id: tables.src,v 2.39 1998-05-04 20:43:36 bbos Exp $ -->
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<!-- $Id: tables.src,v 2.40 1998-05-06 02:27:03 ijacobs Exp $ -->
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<head>
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<meta http-equiv="Content-Type" content="text/html;charset=ISO-8859-1">
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<title>Tables</title>
@@ -850,39 +850,39 @@ class="propinst-height">'height'</span> property for the 'table' or
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'inline-table' element. A value of 'auto' means that the height is the
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sum of the row heights plus any cell spacing or borders. Any other
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value specifies the height explicitly; the table may thus be taller or
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shorter than the height of its rows. When shorter, the user agent
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should provide a scrolling mechanism to make hidden rows available to
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the user. When taller, extra space should be added at the end of the table.
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<!-- What do row percentages refer to? Proposed: table
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'height' if value other than 'auto', otherwise same as 'auto' -IJ -->
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<!-- Note that the above is NOT symmetric with columns since,
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if the specified table height is larger than the heights required
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by the rows, the UA would have to reflow the entire table to
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redistribute the extra height space. This may not be the
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case if there is a "fast" algorithm for heights. -IJ -->
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shorter than the height of its rows. CSS2 does not specify rendering
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when the specified table height differs from the content height, in
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particular whether content height should override specified height; if
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it doesn't, how extra space should be distributed among rows that add
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up to less than the specified table height; or, if the content height
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exceeds the specified table height, whether the UA should provide a
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scrolling mechanism. <strong>Note.</strong> Future versions of CSS
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may specify this further.
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<P>The height of a 'table-row' element's box is calculated once the
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user agent has all the cells in the row available: it is the maximum
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of the row's specified <span class="propinst-height">'height'</span>
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and the minimum height (MIN) required by the cells. A <span
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class="propinst-height">'height'</span> value of 'auto' for a
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'table-row' means the computed row height is MIN. MIN depends on
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cell box heights and cell box alignment (much like the calculation of
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a <a href="visudet.html#line-height">line box</a> height).
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<!-- What about cells that span more than one row? -IJ -->
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<!-- Is there an equivalent to a "fast" algo for heights?
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Namely: the height of the first box in the row establishes
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the height of the row?
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If there is a fast algorithm, specify how overflow occurs. -IJ -->
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<P>The height of a cell box is given by the table cell's <span
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class="propinst-height">'height'</span> property. A value of 'auto'
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means the computed height is the minimum height required by the content;
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any other value sets the height explicitly.
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'table-row' means the computed row height is MIN. MIN depends on cell
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box heights and cell box alignment (much like the calculation of a <a
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href="visudet.html#line-height">line box</a> height). CSS2 does not
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define what percentage values of <span
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class="propinst-height">'height'</span> refer to when specified for
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table rows and row groups.
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<P>In CSS2, the height of a cell box is the maximum of the table
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cell's <span class="propinst-height">'height'</span> property and the
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minimum height required by the content (MIN). A value of 'auto' for
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<span class="propinst-height">'height'</span> implies a computed value
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of MIN. CSS2 does not define what percentage values of <span
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class="propinst-height">'height'</span> refer to when specified for
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table cells.
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<P>CSS2 does not specify how cells that span more than row
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affect row height calculations except that the sum of the row
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heights involved must be great enough to encompass the cell
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spanning the rows.
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<P>The <span class="propinst-vertical-align">'vertical-align'</span>
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property of each table cell determines its alignment within the row.
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baseline instead.
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</dl>
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<!-- Add statement about cells that span more than one row? -IJ -->
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<p>The baseline of a cell is the baseline of the first line of text in
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the cell. If there is no text, the baseline is the baseline of
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whatever object is displayed in the cell, or, if it has none, the
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of the row. Note that if there is no cell box aligned at its
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baseline, the row will not have (nor need) a baseline.</p>
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<p>To avoid ambiguous situations, the alignment of cells proceeds in
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<p>To avoid ambiguous situations, the alignment of cells proceeds in
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the following order:</p>
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<ol>
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<dd>The header is spoken before every pertinent cell.
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</dl>
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<!--
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<p>[Add speak:header-cell|data-cell, and some way to mirror the
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axis/headers attributes? -BB]
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</p>
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-->
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<p>Each document language may have different mechanisms that allow
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authors to specify headers. For example, in HTML 4.0 ([[HTML40]]), it
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is possible to specify header information with three different

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