%%% ====================================================================
%%%  @TeX-font-metrics-file{
%%%     author          = "Lars Hellstr{\"o}m",
%%%     version         = "1.923",
%%%     date            = "2003-03-29",
%%%     time            = "16:17:30 +01:00",
%%%     filename        = "lsfake.mtx",
%%%     email           = "fontinst@tug.org",
%%%     URL             = "http://www.tug.org/applications/fontinst/",
%%%     checksum        = "",
%%%     codetable       = "ISO/ASCII",
%%%     keywords        = "metrics, TeX, PostScript",
%%%     supported       = "yes",
%%%     abstract        = "This is a font metrics file, for use with the
%%%                        fontinst utility. It fakes latin smallcaps.",
%%%     package         = "fontinst",
%%%     dependencies    = "fontinst.sty, fontdoc.sty, lubuild.mtx",
%%%  }
%%% ====================================================================

\relax

\documentclass[twocolumn]{article}

\usepackage{fontdoc}[2002/03/01]
\showbranches

\newcommand{\IEint}[1]{\ensuremath{\TypesetIntegerExpression{\int{#1}}}}

\title{Faking smallcaps}
\author{Lars Hellstr\"om}
\date{5 January 2003\\Version 1.923}

\begin{document}
\maketitle

\section{Introduction}

This file is used to fake small capitals (the \texttt{s} case) for a 
font by shrinking the full capitals (the \texttt{u} case) by a 
certain factor (\IEint{smallcapsscale}). This effectively changes the 
weight of the font so that it becomes lighter, but that effect is 
(for scaling factors near the default value) not too large, even 
though it is quite visible. 

Optimal distance between two letters generally grows slower than the 
dimensions of the letters themself. Conversely, to linearly shrink a 
line of text usually places the letters a bit too close. To counteract 
that, the \textbf{Small glyph} commands used below insert a bit of 
extra space (\IEint{smallcapsextraspace}) before and after the actual 
glyph.

Besides the letters, there is also manufactured a special set of 
diacritical marks (skrunk by the same factor as the letters), with 
names such as \texttt{Acutesmall}. These are meant to be used as 
accent characters in a font where the fake small capitals are used as 
small letters, so that clashes within a single character when \TeX's 
\verb|\accent| primitive is used can be less pronounced.


\metrics

\needsfontinstversion{1.910}
\usemtxpackage{lubuild}

\ProvidesMtxPackage{lsfake}


\begincomment
\section{Some commands and default values}

\endcomment



% A c&sc glyph is created by shrinking the cap glyph, and adding extra
% space.

\setcommand\cscglyph#1{
   \movert{\int{smallcapsextraspace}}
   \glyph{#1}{\int{smallcapsscale}}
   \movert{\int{smallcapsextraspace}}
}
\begincomment
A \textbf{Small glyph} is mainly the special case of a \textbf{Glyph} 
when the glyph is scaled 
$\TypesetIntegerExpression{\int{smallcapsscale}}$. This is used to 
fake smallcaps from full capitals. The exact meaning of 
``\textbf{Small glyph} `\#1'\,'' is
\begin{quotation}\cscglyph{\macroparameter{1}}\end{quotation}

\resetcommand\cscglyph#1{%
   \Bheading{Small glyph} `\TypesetStringExpression{#1}'%
}
\endcomment

\setcommand\fakecscglyph#1#2{
   \setglyph{#1small}
      \cscglyph{#2}
      \setleftrightkerning{#1small}{#2}{\int{smallcapskerning}}
   \endsetglyph
}
% If you supply a definition of \fakecscglyph which has #1medium
% instead of #1small, then you can use this file to fake medium
% capitals instead of small capitals.


\setint{smallcapsscale}{800}
\setint{smallcapskerning}{900}

\ifisint{monowidth}\then
   \setint{smallcapsextraspace}
      {\half{\scale{\width{x}}{\sub{1000}{\int{smallcapsscale}}}}}
\Else
   \setint{smallcapsextraspace}{25}
\Fi



\begincomment
\section{Unaccented letters}
\endcomment

\fakecscglyph{A}{A}
\fakecscglyph{AE}{AE}
\fakecscglyph{B}{B}
\fakecscglyph{C}{C}
\fakecscglyph{D}{D}
\fakecscglyph{Eth}{Eth}
\fakecscglyph{E}{E}
\fakecscglyph{F}{F}
\fakecscglyph{G}{G}
\fakecscglyph{H}{H}
\fakecscglyph{I}{I}
\fakecscglyph{J}{J}
\fakecscglyph{K}{K}
\fakecscglyph{Lslash}{Lslash}
\fakecscglyph{L}{L}
\fakecscglyph{M}{M}
\fakecscglyph{N}{N}
\fakecscglyph{Ng}{Ng}
\fakecscglyph{O}{O}
\fakecscglyph{OE}{OE}
\fakecscglyph{Oslash}{Oslash}
\fakecscglyph{P}{P}
\fakecscglyph{Q}{Q}
\fakecscglyph{R}{R}
\fakecscglyph{S}{S}
\fakecscglyph{T}{T}
\fakecscglyph{Thorn}{Thorn}
\fakecscglyph{U}{U}
\fakecscglyph{V}{V}
\fakecscglyph{W}{W}
\fakecscglyph{X}{X}
\fakecscglyph{Y}{Y}
\fakecscglyph{Z}{Z}

\setglyph{Dbarsmall}
   \glyph{Ethsmall}{1000}
   \setleftrightkerning{Dbarsmall}{Ethsmall}{1000}
\endsetglyph




\begincomment
\section{Accented letters}
\endcomment


\fakecscglyph{Aacute}{Aacute}
\fakecscglyph{Abreve}{Abreve}
\fakecscglyph{Acircumflex}{Acircumflex}
\fakecscglyph{Adieresis}{Adieresis}
\fakecscglyph{Agrave}{Agrave}
\fakecscglyph{Aogonek}{Aogonek}
\fakecscglyph{Aring}{Aring}
\fakecscglyph{Atilde}{Atilde}
\fakecscglyph{Cacute}{Cacute}
\fakecscglyph{Ccaron}{Ccaron}
\fakecscglyph{Ccedilla}{Ccedilla}
\fakecscglyph{Dcaron}{Dcaron}
\fakecscglyph{Eacute}{Eacute}
\fakecscglyph{Ecaron}{Ecaron}
\fakecscglyph{Ecircumflex}{Ecircumflex}
\fakecscglyph{Edieresis}{Edieresis}
\fakecscglyph{Egrave}{Egrave}
\fakecscglyph{Eogonek}{Eogonek}
\fakecscglyph{Gbreve}{Gbreve}
\fakecscglyph{Iacute}{Iacute}
\fakecscglyph{Icircumflex}{Icircumflex}
\fakecscglyph{Idieresis}{Idieresis}
\fakecscglyph{Idotaccent}{Idotaccent}
\fakecscglyph{Igrave}{Igrave}
\fakecscglyph{Lacute}{Lacute}
\fakecscglyph{Lcaron}{Lcaron}
\fakecscglyph{Nacute}{Nacute}
\fakecscglyph{Ncaron}{Ncaron}
\fakecscglyph{Ntilde}{Ntilde}
\fakecscglyph{Oacute}{Oacute}
\fakecscglyph{Ocircumflex}{Ocircumflex}
\fakecscglyph{Odieresis}{Odieresis}
\fakecscglyph{Ograve}{Ograve}
\fakecscglyph{Ohungarumlaut}{Ohungarumlaut}
\fakecscglyph{Otilde}{Otilde}
\fakecscglyph{Racute}{Racute}
\fakecscglyph{Rcaron}{Rcaron}
\fakecscglyph{Sacute}{Sacute}
\fakecscglyph{Scaron}{Scaron}
\fakecscglyph{Scedilla}{Scedilla}
\fakecscglyph{Tcaron}{Tcaron}
\fakecscglyph{Tcedilla}{Tcedilla}
\fakecscglyph{Uacute}{Uacute}
\fakecscglyph{Ucircumflex}{Ucircumflex}
\fakecscglyph{Udieresis}{Udieresis}
\fakecscglyph{Ugrave}{Ugrave}
\fakecscglyph{Uhungarumlaut}{Uhungarumlaut}
\fakecscglyph{Uring}{Uring}
\fakecscglyph{Yacute}{Yacute}
\fakecscglyph{Ydieresis}{Ydieresis}
\fakecscglyph{Zacute}{Zacute}
\fakecscglyph{Zcaron}{Zcaron}
\fakecscglyph{Zdotaccent}{Zdotaccent}


\begincomment
\section{Shrunk accents}
\endcomment

% A c&sc accent is created by moving a shrunk accent up by the
% difference between a scaled x and a scaled X.

\setcommand\cscaccent#1{
   \moveup{\scale{\int{xheight}}{\sub{1000}{\int{smallcapsscale}}}}
   \cscglyph{#1}
   \moveup{\scale{\int{xheight}}{\sub{\int{smallcapsscale}}{1000}}}
}
\begincomment\medskip
A \textbf{Shrunk accent} is a \textbf{Small glyph} whose vertical 
position has been adjusted so that the 
$\TypesetIntegerExpression{\int{xheight}}$ position of the original 
accent coincides with that of the shrunk accent. Without this 
adjustment, it would instead be the baselines that would coincide, 
but such an accent would be too low. The exact meaning of 
``\textbf{Shrunk accent} `\#1'\,'' is
\begin{quotation}\cscaccent{\macroparameter{1}}\end{quotation}

\resetcommand\cscaccent#1{%
   \Bheading{Shrunk accent} `\TypesetStringExpression{#1}'%
}
\endcomment


\setglyph{Acutesmall}
   \cscaccent{Acute}
\endsetglyph

\setglyph{Gravesmall}
   \cscaccent{Grave}
\endsetglyph

\setglyph{Circumflexsmall}
   \cscaccent{Circumflex}
\endsetglyph

\setglyph{Tildesmall}
   \cscaccent{Tilde}
\endsetglyph

\setglyph{Dieresissmall}
   \cscaccent{Dieresis}
\endsetglyph

\setglyph{Brevesmall}
   \cscaccent{Breve}
\endsetglyph

\setglyph{Dotaccentsmall}
   \cscaccent{Dotaccent}
\endsetglyph

\setglyph{Caronsmall}
   \cscaccent{Caron}
\endsetglyph

\setglyph{Hungarumlautsmall}
   \cscaccent{Hungarumlaut}
\endsetglyph

\setglyph{Ringsmall}
   \cscaccent{Ring}
\endsetglyph

\setglyph{Macronsmall}
   \cscaccent{Macron}
\endsetglyph

\setglyph{Cedillasmall}
   \cscglyph{Cedilla}
\endsetglyph

\setglyph{Ogoneksmall}
   \cscglyph{Ogonek}
\endsetglyph



\begincomment
\section{Miscellaneous glyphs}
\endcomment


\setglyph{dotlessIsmall}
   \glyph{Ismall}{1000}
\endsetglyph
\setleftrightkerning{dotlessIsmall}{Ismall}{1000}

\setglyph{dotlessJsmall}
   \glyph{Jsmall}{1000}
\endsetglyph
\setleftrightkerning{dotlessJsmall}{Jsmall}{1000}

\setglyph{FFsmall}
   \glyph{Fsmall}{1000}
   \movert{\kerning{Fsmall}{Fsmall}}
   \glyph{Fsmall}{1000}
\endsetglyph

\setglyph{FIsmall}
   \glyph{Fsmall}{1000}
   \movert{\kerning{Fsmall}{Ismall}}
   \glyph{Ismall}{1000}
\endsetglyph

\setglyph{FLsmall}
   \glyph{Fsmall}{1000}
   \movert{\kerning{Fsmall}{Lsmall}}
   \glyph{Lsmall}{1000}
\endsetglyph

\setglyph{FFIsmall}
   \glyph{FFsmall}{1000}
   \movert{\kerning{FFsmall}{Ismall}}
   \glyph{Ismall}{1000}
\endsetglyph

\setglyph{FFLsmall}
   \glyph{FFsmall}{1000}
   \movert{\kerning{FFsmall}{Lsmall}}
   \glyph{Lsmall}{1000}
\endsetglyph

\setglyph{IJsmall}
   \glyph{Ismall}{1000}
   \movert{\kerning{Ismall}{Jsmall}}
   \glyph{Jsmall}{1000}
\endsetglyph

\setglyph{SSsmall}
   \glyph{Ssmall}{1000}
   \movert{\kerning{Ssmall}{Ssmall}}
   \glyph{Ssmall}{1000}
\endsetglyph



\endmetrics

\section{Notes}

An important, but rather obscure, difference between what is done by 
this file and what is done by the old \texttt{latin.mtx} concerns the 
manner in which the letters are spaced. In this file, spacing of 
smallcaps is consistently done using the \IEint{smallcapsextraspace} 
parameter, but \texttt{latin.mtx} only uses this mechanism in 
monowidth fonts. For proportional fonts, the default was instead to 
use the \IEint{letterspacing} parameter to space the entire 
font---the same amount for non-faked as for faked letters.


\section{Changes}

1999/10/25: Added \verb|\setglyphs| for \texttt{Macronsmall} and
\texttt{macronsmall}. (LH)

1999/10/25: Simplified definition of \verb|\unfakable|. (UV\&LH)
Rationale: It is thoroughly confusing if the size of the black box
created by \verb|\unfakable| depends on the metrics of an unencoded
glyph that isn't accessible and therefore unavailable for all pratical
purposes.

2000/10/20: File split off from \texttt{latin.mtx}.

2003/01/02--05: File heavily reorganised. (LH)

\end{document}

% Copyright 1993, 1994, 1995, 1996 Alan Jeffrey,
% hacked and maintained 1997, 1998 Sebastian Rahtz,
% copyright 1998, 1999 the fontinst maintenance team and any individual
% authors listed elsewhere in this file.  All rights reserved.
%
% This file is part of the fontinst system version 1.9.
% -----------------------------------------------------
%
% It may be distributed under the terms of the LaTeX Project Public
% License, as described in lppl.txt in the base LaTeX distribution.
% Either version 1.0 or, at your option, any later version.
%
