 %% $Id: findfont-doc.tex 16 2021-11-07 19:42:57Z hvoss $
%
\listfiles\setcounter{errorcontextlines}{100}
\documentclass[paper=a4,fontsize=11pt,DIV=14,parskip=half-,
               captions=tableabove,twoside=on]{scrartcl}
\usepackage{fontspec}
%\usepackage{libertinus-otf}
\setmainfont{AccanthisADFStdNo3}[
  UprightFont   =*-Regular,
  BoldFont      =*-Bold,
  ItalicFont    =*-Italic,
  BoldItalicFont=*-BoldItalic,
  RawFeature    = -rlig,
]
\setsansfont{GilliusADF}[
  UprightFont   =*-Regular,
  BoldFont      =*-Bold,
  ItalicFont    =*-Italic,
  BoldItalicFont=*-BoldItalic,
  RawFeature    = -rlig,
]
\setmonofont{DejaVu Sans Mono}[Scale=MatchLowercase,FakeStretch=0.9]
%\setmonofont{Anonymous Pro}[Scale=MatchLowercase,FakeStretch=0.9]

\usepackage[english]{babel}
\usepackage{scrlayer-scrpage}
\automark[section]{section}
\automark*[subsection]{}
\pagestyle{scrheadings}

{\catcode`\%=12 
 \gdef\perCent{%}
 \gdef\DoubleperCent{%%}
}

\usepackage{xcolor,fancyvrb,varioref}
\usepackage{xltabular,pdflscape}
\usepackage{hvlogos} % for Wikipedia W
\usepackage{listings}
\usepackage{dtk-extern} % for Wikipedia W
\lstset{basicstyle=\ttfamily\small,language=[LaTeX]TeX}
\usepackage{ragged2e}
\usepackage{makeidx}\makeindex
\usepackage{hvindex}
\def\Lfile#1{\texttt{#1}\index{#1 file@\texttt{#1} file}}
\def\Lext#1{\texttt{.#1}\index{#1 file extension@\texttt{.#1} file extension}}
\def\Lcs#1{\texttt{\textbackslash#1}\index{#1@\texttt{\textbackslash#1}}}
\def\Lenv#1{\texttt{#1}\index{#1 environment@\texttt{#1} environment}}
\def\Lpack#1{\texttt{#1}\index{#1 package@\texttt{#1} package}}
\def\Lprog#1{\texttt{#1}\index{#1 program@\texttt{#1} program}}
\def\Loption#1{\texttt{#1}\index{#1@\texttt{#1} package option}}
\def\Largb#1{\emph{\{#1\}}}

%\usepackage[bibstyle=dtk]{biblatex}
%\addbibresource{\jobname.bib}

\raggedbottom
\usepackage{url}
\usepackage[colorlinks,linktocpage]{hyperref}

\makeatletter% from: doc.sty
\newcommand*\GetFileInfo[1]{%
  \def\filename{#1}%
  \def\@tempb##1 ##2 ##3\relax##4\relax{%
    \def\filedate{##1}%
    \def\fileversion{##2}%
    \def\fileinfo{##3}}%
  \edef\@tempa{\csname ver@#1\endcsname}%
  \expandafter\@tempb\@tempa\relax? ? \relax\relax}
\makeatother

%\GetFileInfo{xltabular.sty}
\usepackage{xspace}

\newcommand\FF{\texttt{luafindfont}\xspace}

\def\setVersion#1{\setVVersion#1!!}
\def\setVVersion#1=#2!!{\def\luafindfontVersion{#2}} 

\setVersion{version = 0.04}%  can be automatically changed by perl

\setkeys{dtk}{cleanup=true,force}

\title{Program \texttt{luafindfont} \\--\\ \normalsize \luafindfontVersion\ (\today)}
\author{\shortstack{Herbert Voß\\\small \href{mailto:hvoss@tug.org}{hvoss@tug.org}}}
\date{}
\begin{document}
\maketitle
\thispagestyle{empty}
\enlargethispage{1cm}
\tableofcontents

\vfill
Thanks to: \\
Rolf Niepraschk;
\clearpage

\section{Introduction}
The Lua program
\FF is a  program for searching installed fonts which are usable for \LuaLaTeX\ and \XeLaTeX.
The already existing Lua program \Lprog{luaotfload-tool} can also be used for searching, but
the search-interface is somewhat cryptic and too complex for a user, who wants only to know
if a font is present or not. And if present, wher can it be found. For example:

\begin{verbatim}
H-MacBook:~ voss$ 
H-MacBook:~ voss$ luaotfload-tool --find=times
luaotfload | resolve : Font "times" found!
luaotfload | resolve : Resolved file name "/System/Library/Fonts/Times.ttc", subfont nr. 0
H-MacBook:~ voss
H-MacBook:~ voss$ luaotfload-tool --fuzzy --find="times new roman"
luaotfload | resolve : Font "times new roman" found!
luaotfload | resolve : Resolved file name "/System/Library/Fonts/Supplemental/Times New Roman.ttf"
H-MacBook:~ voss$ 
\end{verbatim}

But this are not \emph{all} Times fonts. Compare it with the output of \Lprog{luafindfont},
where the searchname \emph{times} must only be a part of a longer name:

\begin{verbatim}
bash-3.2$ ./luafindfont.lua times
We are using Lua 5.3
Check for file /usr/local/texlive/texmf-var/luatex-cache/generic/names/luaotfload-names
 Nr.                         Fontname      Symbolic Name                                 Path
   1.  Times New Roman Bold Italic.ttf      timesnewroman     /Users/voss/Library/Fonts/Times/
   2.  Times New Roman Bold Italic.ttf      timesnewroman  /System/Library/Fonts/Supplemental/
   3.         Times New Roman Bold.ttf      timesnewroman  /System/Library/Fonts/Supplemental/
   4.         Times New Roman Bold.ttf      timesnewroman     /Users/voss/Library/Fonts/Times/
   5.       Times New Roman Italic.ttf      timesnewroman  /System/Library/Fonts/Supplemental/
   6.       Times New Roman Italic.ttf      timesnewroman     /Users/voss/Library/Fonts/Times/
   7.              Times New Roman.ttf      timesnewroman  /System/Library/Fonts/Supplemental/
   8.              Times New Roman.ttf      timesnewroman     /Users/voss/Library/Fonts/Times/
   9.                        Times.ttc              times               /System/Library/Fonts/
  10.             Times_Sans_Serif.ttf     timessansserif     /Users/voss/Library/Fonts/Times/
  11.      TimesNewRomanMTStd-Bold.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  12.  TimesNewRomanMTStd-BoldCond.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  13.    TimesNewRomanMTStd-BoldIt.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  14.      TimesNewRomanMTStd-Cond.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  15.    TimesNewRomanMTStd-CondIt.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  16.    TimesNewRomanMTStd-Italic.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  17.           TimesNewRomanMTStd.otf timesnewromanmtstd     /Users/voss/Library/Fonts/Times/
  18. TimesNewRomanPS-BoldItalicMT.otf  timesnewromanpsmt     /Users/voss/Library/Fonts/Times/
  19.       TimesNewRomanPS-BoldMT.otf  timesnewromanpsmt     /Users/voss/Library/Fonts/Times/
  20.            TimesNewRomanPSMT.otf  timesnewromanpsmt     /Users/voss/Library/Fonts/Times/
  21.      TimesNewRomanPSStd-Bold.otf timesnewromanpsstd     /Users/voss/Library/Fonts/Times/
  22.    TimesNewRomanPSStd-BoldIt.otf timesnewromanpsstd     /Users/voss/Library/Fonts/Times/
  23.    TimesNewRomanPSStd-Italic.otf timesnewromanpsstd     /Users/voss/Library/Fonts/Times/
  24.   TimesNewRomanPSStd-Regular.otf timesnewromanpsstd     /Users/voss/Library/Fonts/Times/
\end{verbatim}


\subsection{Syntax}

The \Index{syntax} is 

\verb|luafindfont [...] <font>| 

where \verb|[...]|  are optional \Index{argument}s, either in short or
long form which, of course, can be mixed:

\begin{verbatim}
  parameter handling
    -q,--quiet
    -h,--help
    -o,--otfinfo (default 0)
    -i,--info (default 0)
    -n,--nosymbolicnames
    -v...          Verbosity output
    -m,--max_string (default 90)
    <font> (string)  
\end{verbatim}

For example:

\begin{verbatim}
luafindfont times 
luafindfont palatino -o 3
luafindfont -i 3 -m 50 arial
\end{verbatim}

\begin{enumerate}
\item \texttt{-q}: quiet; 
\item \texttt{-m <columns>}: How many columns are used for the font with full path. This can be really long, but with e.g. \verb|-m 50| 
the length is limited to 50 characters.
\item \texttt{-o <number>}: For the font with the given number from the font list the program \Lprog{otfinfo} is called
    for some generell font informations.
\item \texttt{-i <number>}: For the font with the given number from the font list the existing font styles are listed.
\end{enumerate}

\section{How it works}
\FF uses the data file \Lfile{luaotfloadtool-names.lua} which is created by \LuaTeX. If it is
missing it will be created by \FF itself. The name of the font should be in lowercase
characters and must not be the complete name. A \verb|time| for finding all fonts with
time in its names is sufficiant.

\section{Examples}

\begin{Verbatim}
bash-3.2$ luafindfont segoe
\end{Verbatim}

\VerbatimInput{Examples/exa01.txt}

\begin{Verbatim}
bash-3.2$ luafindfont -m 40 libertinus
\end{Verbatim}

\VerbatimInput{Examples/exa02.txt}


\begin{Verbatim}
bash-3.2$ luafindfont -i 9 sego
\end{Verbatim}

\VerbatimInput{Examples/exa04.txt}


\begin{landscape}
\begin{Verbatim}[fontsize=\small]
bash-3.2$ luafindfont -o 6 arial
\end{Verbatim}

\VerbatimInput[fontsize=\small]{Examples/exa03.txt}


\section{List of all fonts}
This possible with the symbolic fontname "*" instead of a real fontname:

\begin{Verbatim}[fontsize=\small]
bash-3.2$ luafindfont "*"
\end{Verbatim}

This list maybe really long and is shortend here!

\VerbatimInput[fontsize=\small]{Examples/exa05.txt}


\end{landscape}


\begin{Verbatim}[fontsize=\small]
bash-3.2$ luafindfont -n minion
\end{Verbatim}

\VerbatimInput[fontsize=\small]{Examples/exa06.txt}





\printindex

\end{document}
