On 6/26/2016 1:25 PM, Pali Rohár wrote:
But I'm trying to point something else, that csr.enc file does not have
to be specified.
File csr.enc contains:
/il2Encoding [
/Gamma /Delta /Theta /Lambda /Xi /Pi /Sigma /Upsilon
...
/quotedblbase /csquotedblright
] def
File csr10.pfb contains:
/FontName /csr10 def
/Encoding 256 array
0 1 255 {1 index exch /.notdef put} for
dup 0 /Gamma put
dup 1 /Delta put
dup 2 /Theta put
dup 3 /Lambda put
dup 4 /Xi put
dup 5 /Pi put
dup 6 /Sigma put
dup 7 /Upsilon put
...
dup 254 /quotedblbase put
dup 255 /csquotedblright put
readonly def
...
2 index /CharStrings 183 dict dup begin
/Xi {
...
}
/dotlessi {
...
}
/oslash {
...
}
...
So glyphs are really in random order in csr10.pfb file (first is /Xi,
second /dotlessi, ...) but at beginning of csr10.pfb file is /Encoding
table where is that mapping from index to glyph name. Same what is in
csr.enc file.
And I'm trying to tell you that in this case (when /Encoding array in
pfb file is available), external *.enc is not needed to specify. Looks
like that pdftex uses this /Encoding array.
the enc files shows what glyphs (by name) are in the tfm file and the
vector in the pfb file tels what glyphs (by name) are in what slot ..
these are different indexes and the name makes it possibel to go from
the tex one to the pfb one
(for adobe standard encoding it in parallel but tex encodings are hardly
standard)
I think it could be useful if that your loader was able to understand
command also when pfb file is not specified. It could try to load either
pfb file (preferred) or fallback to PK/metafont.
the more hardcoded logic is in there, the harder it is to beat (i can
impose some logic in context but want to stay away from intefreing in
other macro packages logic)
it has (internal/system pdftex.map) database of Type 1 fonts and
only system .. in luatex i never use map files
Hans
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