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%% This is part of OpTeX project, see http://petr.olsak.net/optex
\_fontdecl [Latin Modern] \LMfonts {TeX Gyre fonts based on Coputer Modern}
{\roman \sans \quotset \ttset \ttprop \ttlight \ttcond \upital
\dunhill submods:\caps \slant \nbold \bolder} {\rm \bf \it \bi \tt} {LM}
{[lmroman10-regular]}
\_wlog{\_detokenize{%
Modifiers (selects subfamily):^^J
\modreset .. implicit values (serif, bold extended, nocaps)^^J
\sans ...... sans serif subfamily^^J
\quotset ... quotation subfamily^^J
\ttset ..... typewriter subfamily^^J
\ttprop .... proportional typewriter-like subfamily^^J
\ttlight ... light typewriter subfamily^^J
\ttcond .... condensed typewriter subfamily^^J
\upital .... upright italic (only \rm)^^J
\dunhill ... dunhill roman subfamily (only \rm, \it)^^J%
Submodifiers (setlects special variants of given subfamily):^^J
\caps ...... caps & small caps (available only at limited shapes)^^J
\slant ..... slanted (default in some subfamilies)^^J
\nbold ..... normal bold (extended bold is default)^^J
\bolder .... extended bold^^J
}}
\_protected\_def \LMfonts {%
\_def \_currfamily {LMfonts}%
\_def \_fontnamegen {[\_optname{lm\_subfamV.\_currV}]:\_fontfeatures}%
\_resetmod
}
\_def\_LMregfont #1 #2 #3{%
\_edef\_tmp {\_noexpand\_regoptsizes #1 #2 \_ea\_detokenize\_ea{#3}}%
\_lowercase\_ea{\_tmp}% OTF file names are lowercase
}
\_def \_regoptFS {5 <5.5 6 <6.5 7 <7.5 8 <8.5 9 <9.5 10 <11.1 12 <15 17 <*}
\_def \_regoptFT {5 <5.5 6 <6.5 7 <7.5 8 <8.5 9 <9.5 10 <11.1 12 <*}
\_def \_regoptST {7 <7.5 8 <8.5 9 <9.5 10 <11.1 12 <*}
\_def \_regoptES {8 <8.5 9 <9.5 10 <11.1 12 <15 17 <*}
\_def \_regoptET {8 <8.5 9 <9.5 10 <11.1 12 <*}
\_def \_regoptT {10 <*}
\_def \_regoptE {8 <*}
\_LMregfont lmrm.r LMRoman?-Regular \_regoptFS % 5-17
\_LMregfont lmrm.bx LMRoman?-Bold \_regoptFT % 5-12
\_LMregfont lmrm.i LMRoman?-Italic \_regoptST % 7-12
\_LMregfont lmrm.bxi LMRoman?-BoldItalic \_regoptT % 10
\_LMregfont lmrm.isl LMRomanSlant?-Regular \_regoptES % 8-17
\_LMregfont lmrm.bxisl LMRomanSlant?-Bold \_regoptT % 10
\_LMregfont lmrm.b LMRomanDemi?-Regular \_regoptT % 10
\_LMregfont lmrm.bi LMRomanDemi?-Oblique \_regoptT % 10
\_LMregfont lmss.r LMSans?-Regular \_regoptES % 8-17
\_LMregfont lmss.bx LMSans?-Bold \_regoptT % 10
\_LMregfont lmss.i LMSans?-Oblique \_regoptES % 8-17
\_LMregfont lmss.bxi LMSans?-BoldOblique \_regoptT % 10
\_LMregfont lmss.b LMSansDemiCond?-Regular \_regoptT % 10
\_LMregfont lmss.bi LMSansDemiCond?-Oblique \_regoptT % 10
\_LMregfont lmsq.r LMSansQuot?-Regular \_regoptE % 8
\_LMregfont lmsq.b LMSansQuot?-Bold \_regoptE % 8
\_LMregfont lmsq.i LMSansQuot?-Oblique \_regoptE % 8
\_LMregfont lmsq.bi LMSansQuot?-BoldOblique \_regoptE % 8
\_LMregfont lmtt.r LMMono?-Regular \_regoptET % 8-12
\_LMregfont lmtt.b LMMonoLt?-Bold \_regoptT % 10
\_LMregfont lmtt.i LMMono?-Italic \_regoptT % 10
\_LMregfont lmtt.bi LMMonoLt?-BoldOblique \_regoptT % 10
\_LMregfont lmtt.isl LMMonoSlant?-Regular \_regoptT % 10
\_optfontalias {lmtt.bisl} {lmtt.bi}
\_LMregfont lmtp.r LMMonoPropLt?-Regular \_regoptT % 10
\_LMregfont lmtp.bx LMMonoPropLt?-Bold \_regoptT % 10
\_LMregfont lmtp.i LMMonoPropLt?-Oblique \_regoptT % 10
\_LMregfont lmtp.bxi LMMonoPropLt?-BoldOblique \_regoptT % 10
\_LMregfont lmtp.b LMMonoProp?-Regular \_regoptT % 10
\_LMregfont lmtp.bi LMMonoProp?-Oblique \_regoptT % 10
\_LMregfont lmtl.r LMMonoLt?-Regular \_regoptT % 10
\_LMregfont lmtl.i LMMonoLt?-Oblique \_regoptT % 10
\_LMregfont lmtc.r LMMonoLtCond?-Regular \_regoptT % 10
\_LMregfont lmtc.i LMMonoLtCond?-Oblique \_regoptT % 10
\_LMregfont lmrm.rc LMRomanCaps?-Regular \_regoptT % 10
\_LMregfont lmrm.ic LMRomanCaps?-Oblique \_regoptT % 10
\_LMregfont lmtt.rc LMMonoCaps?-Regular \_regoptT % 10
\_LMregfont lmtt.ic LMMonoCaps?-Oblique \_regoptT % 10
\_LMregfont lmmu.r LMRomanUnsl?-Regular \_regoptT % 10
\_LMregfont lmdu.r LMRomanDunh?-Regular \_regoptT % 10
\_LMregfont lmdu.sl LMRomanDunh?-Oblique \_regoptT % 10
% main modifiers (they select a subfamily)
\_moddef \resetmod {\_fsetV subfam=rm \_fvars r bx i bxi }
\_moddef \sans {\_fsetV subfam=ss \_fvars r bx i bxi }
\_moddef \quotset {\_fsetV subfam=sq \_fvars r b i bi }
\_moddef \ttset {\_fsetV subfam=tt \_fvars r b i bi }
\_moddef \ttprop {\_fsetV subfam=tp \_fvars r b i bi }
\_moddef \ttlight {\_fsetV subfam=tl \_fvars r . i . }
\_moddef \ttcond {\_fsetV subfam=tc \_fvars r . i . }
\_moddef \upital {\_fsetV subfam=mu \_fvars r . . . }
\_moddef \dunhill {\_fsetV subfam=du \_fvars r . sl . }
% submodifiers (they select special vaiants in a subfamily)
\_moddef \nbold {\_onlyif subfam=rm,ss,tp: {\_fvars r b i bi }}
\_moddef \bolder {\_onlyif subfam=rm,ss,tp: {\_fvars r bx i bxi }}
\_moddef \slant {\_onlyif subfam=rm: {\_fvars r bx isl bxisl }%
\_onlyif subfam=tt: {\_fvars r b isl bisl }}
\_moddef \caps {\_onlyif subfam=rm,tt: {\_fvars rc . ic . }}
\_def \_tryloadtt {\_fontdef\_tentt{\_LMfonts \_addto\_fontfeatures{-tlig;}\_ttset \_rm}}
\_private \LMfonts \ttset ; % \tt variant selector re-defined
\_initfontfamily % new font family must be initialized
\_loadmath {[latinmodern-math]}
\_endcode
\sec How to wite font-macro-file with optical sizes for \OpTeX/
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
First, look at more clear example in `f-hermes.opm`. The basic documentation
is there.
You can use `\_optname` macro in upur `\_fontnamegen`. This macro is fully
expandable and its input is `<internal-template>` and its output is a
part of your `\_fontnamegen`, i.e. it is a part of a real font file name with
`.otf` extension. Shortly speaking:
\begtt
\_optname{<internal-template>} -> <part-of-file-name>
\endtt
You can declare a collection of file names for only one
<optical-name-template> by `\_regoptsizes`. The syntax is shown for one real
case:
\begtt
\_regoptsizes lmr.r lmroman?-regular
5 <5.5 6 <6.5 7 <7.5 8 <8.5 9 <9.5 10 <11.1 12 <15 17 <*
\endtt
In general:
\begtt
\_regoptsizes <internal-template> {<default-size>} <resizing-data>
\endtt
Suppose our example above. Then `\_optname{lmr.r}` expands to
lmroman?-regular where the question mark is substituted by a number
depending on current `\_optsize`. If the `\_optsize` lies between two boundary
values (they are prefixed by `<` character) then the number written between
them is used. For example if $11.1 \lt \_optsize \_le 15$ then 12 is
substituted instead question mark. The <resizing-data> virtually begins
with zero `<0`, but it is not explicitly written. The right part of
<resizing-data> must be terminated by `<*` which means "less than infinity".
If `\_optname` gets an argument which is not registered <internal-template>
then it expands to `\_failedoptname` which typically ends to error message
about missing font. You can redefine `\_failedoptname` macro to some
existing font if you fint it useful.
We are using a special macro \_LMregfont which sets the file names to
lowercase and enables to use a shortcasts isntead real <resizing-data>.
There are shortcats `\_regoptFS`, `\_regoptT`, etc. here. THe collection of
<internal-templates> are declared, each of them covers a collection of real
file names.
The modifiers redefines \_subfamV and \_currV ouput in this file
`f-lmfonts.opm`. These outputs are used in the paramater of `\_optname`, so
they decalre parts of <internal-template>, no parts of real file name.
The `\optfontalias {<new-template>} {<declared-template>} decales
<new-template> wit the same meaning as previously <declared-template>.
The `\_optname` macro can be used even if no otical sizes are provided by
a font family. Suppose that font file names are much more chaotic (because
artists are very creative people), so you need to declare more systematic
<internal-templates> and do an alias from each <internal-template> to
<real-font-name>. For example, you can do it as folows:
\begtt
\def\fontalias #1 #2 {\_regoptsizes #1 ?#2 {} <*}
% alias name real font name
\fontalias crea-a-regular {Creative Font}
\fontalias crea-a-bold {Creative FontBold}
\fontalias crea-a-italic {Creative olique}
\fontalias crea-a-bolditalic {Creative Bold plus italic}
\fontalias crea-b-regular {Creative Regular subfam}
\fontalias crea-b-bold {Creative subfam bold}
\fontalias crea-b-italic {Creative-subfam Oblique}
\fontalias crea-b-bolditalic {Creative Bold subfam Oblique}
\endtt
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