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% This is part of the book TeX for the Impatient.
% Copyright (C) 2003 Paul W. Abrahams, Kathryn A. Hargreaves, Karl Berry.
% See file fdl.tex for copying conditions.
% Fonts for TeX for the Impatient.
% This file is being distributed with the macros because the macro file
% refers to it. We used a combination of Bitstream and standard TeX
% fonts for the original printed book, but for the free edition, we
% stick to Computer Modern.
% -----------------------------------------------------------------------
%
% We used Computer Modern for the main text and math, and Zapf Humanist
% (i.e., Optima) for heads. (bs00015 is Optima Roman, 16 italic, 17
% bold, 18 bold italic.)
%
% First we define all of the fonts we use for any purpose, in terms of the
% font files. Later we define fonts functionally, using \let or \def.
% Computer Modern fonts.
%
\font\fiverm = cmr5
\font\eightrm = cmr8
\font\ninerm = cmr9 % Glue pictures, small caps for ASCII.
%\font\tenrm = xcmr10 % with our kerning
\font\tenrm = cmr10 % don't have the xcmr10 source any more
\font\oldtenrm = cmr10 % straight CM
\font\twelverm = cmr12
\font\twentysixrm = cmr10 at 26pt
%
\font\eightit = cmti8
\font\nineit = cmti9
\font\tenit = cmti10
%
\font\eighttt = cmtt8
\font\eleventt = cmtt10 at 11pt
\font\twelvett = cmtt10 scaled \magstep2
%
\font\tenbt = cmtt10
%
\font\elevensf = cmss10 scaled\magstephalf
\font\fourteensf = cmss10 scaled\magstep2
%
\font\eightbf = cmbx8
\font\tenbf = cmbx10
\font\elevenbf = cmbx10 scaled \magstephalf
\font\twelvebf = cmbx12
\font\thirtysixbf = cmbx10 at 36pt
%
\font\tenbi = cmbxti10
\font\elevenbi= cmbxti10 scaled \magstephalf
\font\fourteenbi= cmbxti10 scaled \magstep2
%
\font\tensc = cmcsc10
\font\eightsl = cmsl8
\font\eighti = cmmi8
\font\eightsy = cmsy8
% % Optima fonts.
% %
% \font\eightopt = bs0015 at 8pt
% \font\nineopt = bs0015 at 9pt
% \font\twelveopt = bs0015 at 12pt
% \font\twentysixopt = bs0015 at 26pt
% \font\nineoptit = bs0016 at 9pt
% \font\tenoptit = bs0016 at 10pt
% \font\tenoptbf = bs0017 at 10pt
% \font\thirtysixoptbf = bs0017 at 36pt
% \font\tenbt = bs00175 at 10pt
% \font\tenoptbi = bs0018 at 10pt
% \font\elevenoptbi = bs0018 at 11pt
% \font\fourteenoptbi = bs0018 at 14pt
% Palatino fonts.
%
\font\tenpal = pplr
%\font\tenpal = bs0023
%\font\tenpalit = bs0024
%\font\tenpalbf = bs0025
%\font\tenpalbi = bs0026
% Logo and picture fonts.
%
\font\eightlogo = logo8
\font\logosl = logosl10
\font\handfont = pzdr
% The following changes are to avoid driver overflow
\ifmsdos
\font\cnum = cnum % 36-pt bold Optima, numbers only (just for MS-DOS)
\let\chapternumeralfont = \cnum
%\let\thirtysixoptbf = \twentysixopt
%\font\sevensy = cmsy8
%\font\seveni = cmmi8
\fi
\def\undefinedfont{\errmessage{Undefined font}}
% This should only be called when \rm et al. are going to be defined
% directly.
%
\def\clearfonts{\let\rm = \undefinedfont \let\bf = \undefinedfont
\let\it = \undefinedfont \let\bi = \undefinedfont
\let\tt = \undefinedfont \let\bt = \undefinedfont
\let\sc = \undefinedfont
\let\ss = \undefinedfont
}
% We only need to assign to \fam if the font is going to be used in math
% mode, which isn't the case with any of these. \rm, \it, \sl, \bf, and
% \tt are defined in plain.
%
\def\bi{\tenbi}
\def\mapquotes{\catcode`` = \active \catcode`' = \active}
{\mapquotes
\gdef\bt{% The font change also draws \ ` ' from a different font.
\tenbt
\def\\{{\tentt \char92}}%
\def`{{\tentt \char96}}\def'{{\tentt \char39}}%
}
}
\def\bti{\tenbi}
\def\sc{\tensc}
% Text fonts.
%
\def\textfonts{%
\def\rm{\fam0\tenrm}%
\textfont0=\tenrm \scriptfont0=\sevenrm \scriptscriptfont0=\fiverm
\textfont1=\teni \scriptfont1=\seveni \scriptscriptfont1=\fivei
\textfont2=\tensy \scriptfont2=\sevensy \scriptscriptfont2=\fivesy
\textfont3=\tenex \scriptfont3=\tenex \scriptscriptfont3=\tenex
\def\it{\fam\itfam\tenit}\textfont\itfam=\tenit
\def\sl{\fam\slfam\tensl}\textfont\slfam=\tensl
\def\bf{\fam\bffam\tenbf}\textfont\bffam=\tenbf
\scriptfont\bffam=\sevenbf \scriptscriptfont\bffam=\fivebf
\def\tt{\fam\ttfam\tentt}\textfont\ttfam=\tentt
\let\sc = \tensc
\setbox\strutbox=\hbox{\vrule height8.5pt depth3.5pt width\z@}%
\normalbaselineskip=12pt
\normalbaselines \rm
}
% Footnote fonts. We generally use eight point.
%
\def\footnotefonts{%
\def\rm{\fam0\eightrm}%
\textfont0=\eightrm \scriptfont0=\sevenrm \scriptscriptfont0=\fiverm
\textfont1=\eighti \scriptfont1=\seveni \scriptscriptfont1=\fivei
\textfont2=\eightsy \scriptfont2=\sevensy \scriptscriptfont2=\fivesy
\textfont3=\tenex \scriptfont3=\tenex \scriptscriptfont3=\tenex
\def\it{\fam\itfam\eightit}\textfont\itfam=\eightit
\def\sl{\fam\slfam\eightsl}\textfont\slfam=\eightsl
\def\bf{\fam\bffam\eightbf}\textfont\bffam=\eightbf
\scriptfont\bffam=\sevenbf \scriptscriptfont\bffam=\fivebf
\def\tt{\fam\ttfam\eighttt}\textfont\ttfam=\eighttt
\let\sc = \eightsc
\setbox\strutbox=\hbox{\vrule height7pt depth2pt width\z@}%
\normalbaselineskip=9pt
\normalbaselines \rm
}
% Fonts for the example titles. They are defined in the first example,
% also.
%
\def\exampletitlefonts{\clearfonts
\let\bf = \elevenbf
\let\bi = \elevenbi
\baselineskip = 13pt \bf
}
% Fonts for the subsection titles.
%
\def\subsectionfonts{\clearfonts \let\sf = \elevensf
\baselineskip = 12pt \sf
}
% Fonts for the section titles.
%
\def\sectionfonts{\clearfonts \let\sf = \fourteensf
\baselineskip = 16pt \sf
}
% Fonts for the chapter titles.
%
\let\chapternumeralfont = \thirtysixbf
\def\chapterfonts{\clearfonts \let\bf = \twentysixrm
\baselineskip = 32pt \bf
}
% Fonts for the table of contents.
%
\def\shorttocfonts{\clearfonts \let\rm = \twelverm
\baselineskip = 20pt \rm
}
\def\tocfonts{\clearfonts \let\rm = \ninerm
\let\it = \tenit \let\bf = \tenbf
\baselineskip = 12pt \rm
}
% Fonts for the index.
%
\def\indexfonts{\clearfonts
\let\rm = \eightrm
\let\it = \eightit
\let\tt = \eighttt
\let\sc = \tensc
\let\sl = \eightsl
\textfont2 = \eightsy % For \AMSTeX.
\let\mflogo = \eightlogo % For \Metafont.
\normalbaselineskip = 10pt \normallineskip = 1.5pt \normalbaselines
\setbox\strutbox=\hbox{\vrule height 7.5pt depth2.5pt width0pt}%
\rm
}
% Fonts for the inside back cover.
%
\def\conceptpagefonts{\clearfonts
\let\rm = \ninerm
\let\sc = \eightrm
\let\sl = \nineit
\baselineskip = 12pt
\rm
}
% We don't want any automatic hyphenation within the code font
\hyphenchar\tentt = -1
\hyphenchar\eighttt = -1
\textfonts
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