[pdftex] Correct use of font expansion.

[Thanh Han The]

On Wed, Sep 26, 2007 at 10:06:20AM -0400, John Culleton wrote:
> I use plain pdftex. Here is my current setup:
> ----------------------------------------------
> \pretolerance 200
> \tolerance 400
> ...
> \font\rm putr8r at 10pt
> ...
> \rm
> \input protcode.tex
> \pdfprotrudechars=2
> \setprotcode\font
> \pdffontexpand\rm 20 20 5 autoexpand
> --------------------------------------------
>
> Is this code correct and sufficient?  It does not yield an error message but I
> still have problems with a few overflow lines in my text, in particular a
> long word at the end of the first line of a paragraph thus:
> -------------------------------------------------------------
> \par ``Consider me a representative of God on earth. Remember the
> Twenty-third (etc)
> --------------------------------------------------------------
> The word fragment "Twenty" overflows the line. I can hyphenate it to Twen\-ty
> but this puts an additional hyphen in a word already hyphenated.
>
> If my micrographic expansion code is functioning then I can take other means
> to eliminate the error, such as inserting \break after "Remember the", or
> negative kerning between words etc. .  But I want to make sure that
> micrographic expansion and contraction is correctly configured first.

I would add the following:

,--------
| \tolerance=9999
| \pdfadjustspacing=2
`--------


Thanh