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Edit File: npsfont.sty

%% BEGIN npsfont.sty
%%
\def\fileversion{v1.0}
\def\filedate{91/11/20}
%%
%% Style option npsfont.sty, for use with LaTeX 2.09
%%   and the New Font Selection Scheme.
%%
%% COPYRIGHT 1992, by Timothy Van Zandt, Timothy.VAN-ZANDT@insead.edu
%%
%%
%% This file may be distributed and/or modified under the conditions of
%% the LaTeX Project Public License, either version 1.2 of this license
%% or (at your option) any later version.  The latest version of this
%% license is in:
%% 
%%    http://www.latex-project.org/lppl.txt
%% 
%% and version 1.2 or later is part of all distributions of LaTeX version
%% 1999/12/01 or later.
%%
%%
% DESCRIPTION:
%
% Defining new PostScript fonts with the New Font Selection Scheme is easy,
% but these macros make it easier. They save on keystrokes, and most
% importantly, they make it easy to change the file names used for fonts
% because you only have to type the file name once instead of 12 times (for
% the 12 standard LaTeX sizes). An optional argument lets you scale the fonts.
%
% These macros are substitutes for the NFSS's \new@fontshape command. For
% information on the purpose of this command, and on how to select fonts that
% are defined with it, see the documentation of the NFSS. If you don't have
% the NFSS, it is available from
%   rusmv1.rus.uni-stuttgart.de
% in
%   soft/tex/latex-style-supported/New-Font-Selection
% and from
%   ymir.claremont.edu
% in
%   [.anonymous.tex.inputs.latex-mainz]
% The NFSS is undoubtably the best way to use PostScript fonts (or any non-
% standard fonts) with LaTeX, and is well worth upgrading to.
%
% USAGE:
%
%   \newpsfont[<scaling>]{<family>}{<series>}{<shape>}{<filename>}
%
%   \newpsfamily[<scaling>]{<family>}{
%     {<series 1>}{<shape 1>}{<filename 1>},
%     {<series 2>}{<shape 2>}{<filename 2>},
%                 . . .
%     {<series n>}{<shape n>}{<filename n>}}
%
% The scaling argument is optional. Like the \new@fontshape command, these
% commands can only be used in the preamble.
%
% EXAMPLE:
%
% Suppose the Helvetica-Oblique virtual font on your system has the name
% phvro.vf. The following defines the <helvetica> family, <m>edium series, and
% <it>alic shape to be the Helvetica-Oblique font, at the standard LaTeX
% font sizes, scaled by .82:
%
%   \newpsfont[.82]{helvetica}{m}{it}{phvro}
%
% This is equivalent to:
%
%   \new@fontshape{helvetica}{m}{it}{%
%     <5>phvro at 4.1pt%
%     <6>phvro at 4.92pt%
%     <7>phvro at 5.74pt%
%     <8>phvro at 6.56pt%
%     <9>phvro at 7.38pt%
%     <10>phvro at 8.2pt%
%     <11>phvro at 8.979pt%
%     <12>phvro at 9.84pt%
%     <14>phvro at 11.808pt%
%     <17>phvro at 14.1696pt%
%     <20>phvro at 17.0068pt%
%     <25>phvro at 20.4016pt}{}
%
% The following command sets up the standard Helvetica family:
%
%   \newpsfamily[.82]{helvetica}{%
%     {m}{n}{phvr},                          %Helvetica
%     {m}{it}{phvro},                        %Helvetica-Oblique
%     {m}{sl}{phvro},                        %Helvetica-Oblique
%     {bx}{n}{phvb},                         %Helvetica-Bold
%     {bx}{it}{phvbo},                       %Helvetica-BoldOblique
%     {bx}{sl}{phvbo}}                       %Helvetica-BoldOblique
%
% (Don't forget the commas.) It is equivalent to:
%
%   \newpsfont[.82]{helvetica}{m}{n}{phvr}     %Helvetica
%   \newpsfont[.82]{helvetica}{m}{it}{phvro}   %Helvetica-Oblique
%   \newpsfont[.82]{helvetica}{m}{sl}{phvro}   %Helvetica-Oblique
%   \newpsfont[.82]{helvetica}{bx}{n}{phvb}    %Helvetica-Bold
%   \newpsfont[.82]{helvetica}{bx}{it}{phvbo}  %Helvetica-BoldOblique
%   \newpsfont[.82]{helvetica}{bx}{sl}{phvbo}  %Helvetica-BoldOblique
%   \extra@def{helvetica}{}{}
%
% WHY SCALE FONTS?:
%
% Disclaimer: The suggestions that follow come from someone who doesn't know
% anything about fonts.
%
% Mixing fonts that are not designed to be used together is not for purists,
% but many of us do it anyway. Scaling the fonts can at least correct for
% differences in the x-heights. This is important if you use Computer
% Modern fonts for in-line math and some other fonts for text.
%
% To find out the x-height of the 10pt size of a font, load this style and
% use the command
%
%   \showxheight{<filename>}
%
% E.g., \showxheight{phvr} and \showxheight{cmr10} displays
%
%   x-height of cmr10 at 10pt is 4.30554pt
%   x-height of phvr at 10pt is 5.24998pt
%
% on the terminal. Scaling the Helvetica fonts by 4.30554/5.24990 = .82
% gets the x-heights of these fonts in line. It is best to set the x-heights
% the same for the medium weight, normal shaped fonts, and then scale the
% rest of the fonts in the same family by the same amount.
%
% David Jones has a psfonts.sty that sets up the standard PostScript fonts,
% all scaled so that the x-heights match that of the Computer Modern medium
% roman font. It is available via anonymous ftp from theory.lcs.mit.edu in
% /pub/dmjones.
%
% IMPLEMENTATION:
%
% \scale@stdsizes has at its argument a scaling factor. It uses \font@scale
% to define \scaled@sizes to be the macro whose argument is the name of a
% font, and which expands to the definitions of the standard \LaTeX{} sizes
% for New Font Selection Schemes \new@fontshape command.
%
\message{\space\space\fileversion\space\space\filedate
  \space\space<tvz>}
\@ifundefined{new@psfontshape}{}{\endinput}
\def\font@scale#1#2#3{\dimen@=#2\dimen@=#3\dimen@
  \edef\scaled@sizes##1{\scaled@sizes{##1}<#1>##1 at\number\dimen@ sp}}
\def\scale@stdsizes#1{%
  \edef\scaled@sizes##1{}%
  \font@scale{5}{5pt}{#1}%
  \font@scale{6}{6pt}{#1}%
  \font@scale{7}{7pt}{#1}%
  \font@scale{8}{8pt}{#1}%
  \font@scale{9}{9pt}{#1}%
  \font@scale{10}{10pt}{#1}%
  \font@scale{11}{10.95pt}{#1}%
  \font@scale{12}{12pt}{#1}%
  \font@scale{14}{14.4pt}{#1}%
  \font@scale{17}{17.28pt}{#1}%
  \font@scale{20}{20.74pt}{#1}%
  \font@scale{25}{24.88pt}{#1}}
\def\new@psfontshape#1#2#3#4{%
  \new@fontshape{#1}{#2}{#3}{\scaled@sizes{#4}}{}}
\def\new@psfont[#1]#2#3#4#5{%
  \scale@stdsizes{#1}%
  \new@psfontshape{#2}{#3}{#4}{#5}}
\def\newpsfont{%
  \@ifnextchar [{\new@psfont}{\new@psfont[1]}}
\def\newpsfamily{%
  \@ifnextchar [{\new@psfamily}{\new@psfamily[1]}}
\def\new@psfamily[#1]#2#3{%
  \scale@stdsizes{#1}%
  \@for\@tempa:=#3\do{%
    \edef\@tempb{\noexpand\new@psfontshape{#2}\@tempa}
    \@tempb}%
  \extra@def{#2}{}{}}
\def\showxheight#1{%
  \font\@tempfont=#1 at 10pt%
  \typeout{^^J x-height of #1 at 10pt is \the\fontdimen5\@tempfont}}
% The commands are added to \@preamblecmds to save memory.
\begingroup
  \def\do{\noexpand\do\noexpand}
  \xdef\@preamblecmds{\@preamblecmds
    \do\font@scale
    \do\scale@stdsizes
    \do\scaled@sizes
    \do\new@psfontshape
    \do\new@psfont
    \do\newpsfont
    \do\newpsfamily
    \do\new@psfamily}
\endgroup
\endinput
%% END npsfont.sty