1. Facilitating <fo:block span="all">

FOTEX.XMT

in \XMLelement{fo:block}: detect the span="all" attribute and if so, end

multicol layout before (if present), and resume multicol layout (if there

was one) after.

FOTEX.STY

new user-interface macros for loading nomulticols.sty if present, otherwise

resorting to multicols, if present, otherwise defining a fake multicols

environment. If nomulticols could not be loaded, care is taken that fo:block

span="all" is disabled, otherwise the TeX run will fail.

In \@outputpage, call refreshmulticols, which will possibly refresh the

multicol layout.

NOMULTICOL.STY

new file, same functionality as MULTICOL.STY, but does not use an

environment. With some extra macros to interrupt a multicolumnlayout. It is

now possible to say

begin multicol layout

    start group

           *1*

        start group

            end multicol layout *2*

                start group

                    do something interesting

                end group

            begin multicol layout *4*

        end group

        *3*

    end group

end multicol layout

CAVEAT 1: a lot of assignments of nomulticol have been made global, may be

too much. For example, if something is set at point *1*, it should be

restored at point *3*, but if this thing is also set by nomulticol, it will

undergo a global change at point *2* and/or *4*, and hence will not be

restored by TeX's grouping mechanism anymore.

So may be it is needed to carefully discriminate between counts, dimens,

boxes, and macros that are particular to multicol (the should be treated

wholly globally), and the (La)TeX-quantities that are dependent on them, and

they might be set locally.

CAVEAT 2: care must be taken that nomulticol interacts well with an other

change by me: every time a page is output, a fresh page setup will be

computed, if necessary. After this page setup, the multicol environment must

be refreshed (if it was in force). But refreshing should not occur twice in

a row for the same page. Although it seems that I have succeeded in

preventing this double refreshment, I still wonder why it can occur at the

first place.

2. Facilitating multiple special pages

XSL-FO facilitates the specification of a sequence of special pages before

an unbounded, repeating page sequence starts.

PassiveTeX only allowed one special page, labelled First. I allow for the

definition of a sequence of such pages, labelled Lead<counter>. In \@output

page a counter keeps track of which Lead page should be set up. A page setup

will be done if necessary.

This change interacts with multicol, see previous item.

Note also, that blank pages, caused by explicit page-breaks of number

continuating properties, will be detected as blank pages, and hence react to

the blank-or-not-blank attribute.

3. Implementation of xsl-footnote-separator

A rather crude implementation, by storing the static content of

xsl-footnote-separator in the macro \footnoterule, and adjusting the

\skip\footins too match the height+ depth of the new \footnoterule.

4. Enabling footnotes in tables

Footnotes in tables work. This is done by saving footnotes insides tables

into a tokenlist \BoxedFootnotes, doing the corresponding \insert-s at the

end of the table.

CAVEAT: this is not reallly a nice implementation: if the table breaks

across pages, the footnotetexts will not appear on the same page as the

footnotemarks.

5. Vertical align in tables

If I work with an explicit line-height, the vertical space allocation for

the first and last row of a table comes out wrong. Also, when there is a

line-break inside a cell, the cell-height comes out too small. Something

gets discarded. I have made some changes to the interlineskip (following the

TeXBook definition of \offinterlineskip), in order to fix this, but I have

not succeeded completely.

6. Inheriting table-cell properties from table-column

According to XSL-FO table-cells my inherit properties from corresponding

table-columns by using

att-x="from-column(att-x)"

PassiveTeX only implements inheritance of column-width and column-number,

without the need to use from-column("column-width").

I have made only an adhoc improvement: text-align will be inherited from the

column, and it happens automatically, without using from-column(text-align).

I have done this with the Array implementation, used for column-width and

column-number. More properties can added easily. It should not be too

difficult to implement from-column(att-x) for a fixed set of attributes, but

implementing this for all possible attributes is more difficult.

7. vskip vs kern

In the code for typesetting blocks, I have changed some vskips in kern,

because I trust the kern better than te vskip (kerns will not be discarded,

vskips might be, and I am not completely sure about the conditions).

8. Bug in FOBoxedBlock

There is some weird code at the start of \FOBoxedBlock (see comments in

fotex.sty at that point).

I have also added some \relax calls after assignments to be sure that the

text after \fi etc is not gobbled up by the preceding assignment.

9. Percenttests

I have increased the use of percented attribute values. Also, \percenttest

was not always able to see the % character, because it was still unexpanded

when fed to it. I have changed that, so that any percent in the

attributetext is surely expanded to a % with catcode 12 before being fed to

percenttest.

(Mostly % appears as an active char, and by means of a limitied-scope

definition of % to be % with catcode 12, this case will be brought to meet

the assumption).

10. Overline

I have added the overline formatting for inlines, but not nearly as nice as

the underline of ulem.sty. I just needed it in simple cases, so I took the

easy option.

11. Pagenumber filtering

The algorithm to filter page number sequences generated by indexes (a very

nice feature of passivetex, by the way), had a few obvious mistakes. I have

corrected them.

12. Horizontal alignment

There were still some problems with alignment, I made some corrections to

\FOOutputblock in fotex.sty.

See also mlnames.sty, definition of \Q@end

13 Page breaks

In \FONormalBlcok I found that a \penalty -\@M did not generate a page

break, so I changed it to \newpage (a few times). (see also changes in

\FOEndBlockTwo

14 Sub- Superscript

PassiveTeX adjusted the fontsize of sub/superscripts, but this should be

governed by the fo-tree.

So I adjusted \textsub/superscript in fotex.sty

15 Dimensions of the page

Page dimensions now work additive, more according to the XSL-FO spec.

16 attribute="inherit"

Now the inherit mechanism can also be triggered by the explicit value of

"inherit". This was achieved by redefining a macro of xmltex: \XML@attrib@x

(in fotex.xmt)

17. fo:external-graphic

scale-to-fit behaviour modified: scaled to the local container instead of

the page (hsize, vsize instead of linewidth, textheight)

18. fo:leader implemetation improved

The code for fo:leader in xmt has been improved

19. fo-retrieve-marker

Some trivial improvements in the code of fo:retrieve-marker

20. More unicode characters

Added definitions for unicode   and &#x2001 (em and n squares) in

ucharacters.sty

A. Nested fo:block in fo:table-cell

Something goes wrong with <fo:table-cell><fo:block><fo:block>.

The count \FOinTable records whether we are inside a table. But I think that

it should also record wheter we are immediately below a <fo:table-cell> or

deeper. But I have not found out what to do in the latter case ...