revising pseudo-algorithm, as per discussions on www-style

Author: howcome

css-multicol/Overview.src.html

@@ -780,54 +780,29 @@ <h3>Pseudo-algorithm</h3>
 <li>that no column breaks are added through style sheets
 </ul>
 
-<p>The <code>floor(X)</code> function returns the largest integer Y ≤ X.
+<p>The <code>floor(X)</code> function returns the largest integer Y &le; X.
 
 
 <pre>
-(01)  if ((column-width = auto) and (column-count = auto)) then
-(02)        exit; /* not a multicol element */
-
-<!--
-(03)  if ((available-width = unknown) and (column-count = auto)) then
-(04)    exit; /* no columns */
-
-(05)  if (available-width = unknown) and (column-count != auto) and (column-width != auto) then
-(06)    N := column-count;  
-(07)    W := column-width;
-(08)  exit;
-
-(09)  if (available-width = unknown) then
-(10)    available-width := shrink-to-fit;
--->
+(01)  if column-width = auto then
+(02)      N := column-count
+(03)   else if column-count = auto then
+(04)      N := max(1, 
+(05)        floor((U + column-gap)/(column-width + column-gap)))
+(06)    else
+(07)      N := min(column-count, max(1, 
+(08)        floor((U + column-gap)/(column-width + column-gap))))
+</pre>
 
-(03)  if (column-width = auto) and (column-count != auto) then
-(04)    N := column-count;
-(05)    W := max(0, (U - ((N - 1) * column-gap)) / N);
-(06)  exit;
-
-(07)  if (column-width != auto) and (column-count = auto) then
-(08)    N := max(1, floor((U + column-gap) / (column-width + column-gap)));
-(09)    W := ((U + column-gap) / N) - column-gap;
-(10)  exit;
-
-(11)  if (column-width != auto) and (column-count != auto) then
-(12)    N := min(column-count, floor((U + column-gap) / (column-width + column-gap)))
-(13)    N := max(1, N); 
-(14)    W := ((U + column-gap) / N) - column-gap;
-(15)  exit
+<p>And:
+<pre>
+(09)  W := max(0, ((U + column-gap)/N - column-gap)
 </pre>
 
 
 <p>In paged media, user agents may perform this calculation on a
 per-page basis.
 
-<p class=note>Note that, in most cases, only one of 'column-width' and
-'column-count' affect the layout. If 'column-width' has a value other
-than ''auto'', 'column-count' indicates the maximum number of columns.
-However, both 'column-width' and 'column-count' are honored when the
-width of the element depends on its contents. This can, e.g., be the
-case for table cells and floats.
-
 
 
 <h3>Stacking context</h3>