diff options
Diffstat (limited to 'doc/context/sources/general/manuals/luametatex')
| -rw-r--r-- | doc/context/sources/general/manuals/luametatex/luametatex-fonts.tex | 20 | ||||
| -rw-r--r-- | doc/context/sources/general/manuals/luametatex/luametatex-nodes.tex | 8 |
2 files changed, 19 insertions, 9 deletions
diff --git a/doc/context/sources/general/manuals/luametatex/luametatex-fonts.tex b/doc/context/sources/general/manuals/luametatex/luametatex-fonts.tex index bff3191d1..c88e9faff 100644 --- a/doc/context/sources/general/manuals/luametatex/luametatex-fonts.tex +++ b/doc/context/sources/general/manuals/luametatex/luametatex-fonts.tex @@ -605,13 +605,19 @@ font.current(<number> i) \stopsubsection -% \startsubsection[title={Glyph data: \lpr {glyphdata}] -% -% This primitive can be used to set an additional glyph property. Of course it's very -% macro package dependant what is done with that. Consider it an experiment (we had -% some room left in the glyphs data structure). It's basically an single attribute. -% -% \stopsubsection +\startsubsection[title={Glyph data: \lpr {glyphdata}, \lpr {glyphscript}, \lpr {glyphstate}}] + +These primitives can be used to set an additional glyph properties. Of course +it's very macro package dependant what is done with that. It started with just +the first one as experiment, simply because we had some room left in the glyph +data structure. It's basically an single attribute. Then, when we got rid of the +ligature pointer we could either drop it or use that extra field for some more, +and because \CONTEXT\ already used the data field, that is what happened. The +script and state fields are shorts, that is, they run from zero to \type {0xFFFF} +where we assume that zero means \quote {unset}. Although they can be used for +whatever purpose their use in \CONTEXT\ is fixed. + +\stopsubsection \stopsection diff --git a/doc/context/sources/general/manuals/luametatex/luametatex-nodes.tex b/doc/context/sources/general/manuals/luametatex/luametatex-nodes.tex index d5f604132..37818f28f 100644 --- a/doc/context/sources/general/manuals/luametatex/luametatex-nodes.tex +++ b/doc/context/sources/general/manuals/luametatex/luametatex-nodes.tex @@ -2155,7 +2155,9 @@ emulated in \LUA\ and not in the engine, so we retain downward compatibility. \supported {getfield} \yes \yes \relax \supported {getfont} \nop \yes \relax \supported {getglue} \nop \yes \yes -%supported {getglyphdata} \nop \yes \relax % experiment +\supported {getglyphdata} \nop \yes \relax % old experiment +\supported {getglyphstate} \nop \yes \relax % new experiment +\supported {getglyphscript} \nop \yes \relax % new experiment \supported {getheight} \nop \yes \relax \supported {getid} \nop \yes \relax \supported {getkern} \nop \yes \relax @@ -2223,7 +2225,9 @@ emulated in \LUA\ and not in the engine, so we retain downward compatibility. \supported {setfield} \yes \yes \relax \supported {setfont} \nop \yes \relax \supported {setglue} \yes \yes \relax -%supported {setglyphdata} \nop \yes \relax % experiment +\supported {setglyphdata} \nop \yes \relax % old experiment +\supported {setglyphstate} \nop \yes \relax % new experiment +\supported {setglyphscript} \nop \yes \relax % new experiment \supported {setheight} \nop \yes \relax \supported {setkern} \nop \yes \relax \supported {setlang} \nop \yes \relax |