Re[3]: Enabling protruding

[Giuseppe Bilotta <bourbaki@bigfoot.com>]

Thursday, January 24, 2002 Hans Hagen wrote:

HH> At 07:44 PM 1/23/2002 +0100, Giuseppe Bilotta wrote:

HH> interesting, took me a while to identify the problem (has to do with empty
HH> parameter). I'll send you a new syst-gen.tex to test.

Seems to work ...

HH> now, to the hanging: one complication is that once a font is 'defined', its 
HH> characteristics are kind of fixed; i could remove this limitation but it 
HH> would not help at all, since hanging get fixed in tex itself.

I thought it was possible to change the protruding by reassigning
the lp/rpcodes.

HH> this means that for the preloaded cmr fonts, (or any preloaded
HH> font) one has to redefine them; also, because of the design
HH> sizes, cmr's are not mapped onto Serif, so here we need to
HH> manually set the fonts (unless one defines them as any ps
HH> collection, ignoreing the design size)

This is a little of a pain.

About design sizes: couldn't you implement the font remapping
mechanism in such a way that cmr10 sa 12 -> cmr12 and so on, or
something like that?

Maybe something like use a flag (discrete=yes,no) so that when
discrete is on (yes), you give the base name (cmr) and ConTeXt appends
the size (10, 12, ...), and when discrete if off (no) it just
scales.

HH> % output=pdftex

HH> \setupfontsynonym[cmr10][handling=pure]
HH> \setupfontsynonym[Serif][handling=pure]
HH> \setupfonthandling[normal][left=1,right=1]

HH> % so here we load 'm again

HH> \usetypescript[cmr] \setupbodyfont[10pt]

HH> % handy for tracing the hanging

HH> \showframe

HH> % off we go

HH> \starttext
HH>    \dorecurse{100}{testtest, }
HH>    \setupalign[hanging]
HH>    \dorecurse{100}{testtest, }
HH>    \setupbodyfont[pos,10pt]
HH>    \dorecurse{100}{testtest, }
HH> \stoptext

Now cmr hangs even when align is not set to hanging (you can see
this by prefixing \setupalign[nothanging] before the first
dorecurse).

--
Giuseppe "Oblomov" Bilotta