summaryrefslogtreecommitdiff
path: root/fonts/bguq/bguq.dtx
diff options
context:
space:
mode:
authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /fonts/bguq/bguq.dtx
Initial commit
Diffstat (limited to 'fonts/bguq/bguq.dtx')
-rw-r--r--fonts/bguq/bguq.dtx182
1 files changed, 182 insertions, 0 deletions
diff --git a/fonts/bguq/bguq.dtx b/fonts/bguq/bguq.dtx
new file mode 100644
index 0000000000..134c447b66
--- /dev/null
+++ b/fonts/bguq/bguq.dtx
@@ -0,0 +1,182 @@
+% \iffalse meta-comment
+%
+% Copyright 2012 J.J. Green
+% $Id: bguq.dtx,v 1.9 2012/08/05 15:39:27 jjg Exp $
+%
+% Changes:
+% 0.1 - 2012/07/16 - first working version
+% 0.2 - 2012/07/18 - code tidying, comments
+% 0.3 - 2012/07/19 - documentation fixes
+% 0.4 - 2012/08/05 - made the stroke slightly rounder and lifted
+% the terminals to the middle (rather than the bottom) of
+% the horzontal stoke, this gives a better appearence for
+% very thick lines
+%
+% \fi
+%
+% \CheckSum{844}
+%% \CharacterTable
+%% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%% Digits \0\1\2\3\4\5\6\7\8\9
+%% Exclamation \! Double quote \" Hash (number) \#
+%% Dollar \$ Percent \% Ampersand \&
+%% Acute accent \' Left paren \( Right paren \)
+%% Asterisk \* Plus \+ Comma \,
+%% Minus \- Point \. Solidus \/
+%% Colon \: Semicolon \; Less than \<
+%% Equals \= Greater than \> Question mark \?
+%% Commercial at \@ Left bracket \[ Backslash \\
+%% Right bracket \] Circumflex \^ Underscore \_
+%% Grave accent \` Left brace \{ Vertical bar \|
+%% Right brace \} Tilde \~}
+%
+% \iffalse % this is a METACOMMENT !
+%
+%<package>\NeedsTeXFormat{LaTeX2e}
+%<package>\ProvidesPackage{bguq}
+%<-driver> [2012/08/05 0.4
+%<package> Begriffsschrift universal quantifier package]
+%
+%<*driver>
+\documentclass[10pt]{ltxdoc}
+\OnlyDescription
+\usepackage[8]{bguq}
+\usepackage[bguq]{begriff-bguq}
+\setlength{\BGthickness}{0.8pt}
+\usepackage{amssymb}
+\providecommand\dst{\expandafter{\normalfont\scshape docstrip}}
+\renewcommand{\quad}{{\hskip1em plus 2em}}
+\begin{document}
+\DocInput{bguq.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% \GetFileInfo{bguq.sty}
+% \title{The \texttt{bguq} macro package for \LaTeXe}
+% \author{J.J. Green}
+% \date{Version \fileversion{} \filedate}
+% \maketitle
+%
+% \setcounter{StandardModuleDepth}{1}
+%
+% \noindent
+% This file defines the package |bguq| which provides \LaTeXe\ access
+% to the \textit{Begriffsschrift} universal quantifier ``$\bguq$''
+% from the \texttt{bguq} font in a small number of sizes. These are
+% are designed for setting the \textit{Begriffsschrift} diagrams used
+% by Frege.
+%
+% The package takes a single option which is an integer between
+% 4 and 12, this specifying the line-thickness of the quantifier
+% stroke in units of $1/10$\,pt for a document font-size of 10\,pt.
+% If the option is not specified then the value \texttt{8} will be
+% assumed. Note that the size of the symbol produced will depend on
+% the font size of the document (since the symbol needs to be wide
+% enough to accomodate the variable quantified) and the line-thickness
+% is scaled similarly --- in a 12\,pt document the line will be 1.2
+% times the thickness, and so on.
+%
+% The package provides only two commands: the |\bguq| macro which,
+% in math-mode, produces the quantifer symbol, and |\bguqwidth| which
+% is a the width of the symbol (for use in fancy placement). It is not
+% expected that these commands will be used by end-users directly,
+% rather they are intended for package writers.
+%
+% Below we see the results in a test implementation in the
+% \texttt{begriff} package by Josh Parsons and Richard Heck:
+% the Geach--Kaplan sentence (as orignally set by Marcus Rossberg).
+% \[
+% \setlength{\BGlinewidth}{1.0in}
+% \BGnot \BGquant{\mathfrak{F}}%
+% \BGconditional{
+% \BGquant{\mathfrak{c}}\BGquant{\mathfrak{d}}
+% \BGconditional{
+% \BGnot
+% \BGconditional{
+% \BGterm{A(\mathfrak{c},\mathfrak{d})}
+% }{
+% \BGnot \BGterm{\mathfrak{F}(\mathfrak{c})}}
+% }{
+% \BGnot \BGconditional{
+% \BGterm{\mathfrak{F}(\mathfrak{d})}
+% }{
+% \BGterm{\mathfrak{c}=\mathfrak{d}}
+% }
+% }
+% }{
+% \BGconditional{
+% \BGnot\BGquant{\mathfrak{b}}\BGnot\BGterm{\mathfrak{F}(\mathfrak{b})}
+% }{
+% \BGterm{f \BGbracket{\BGquant{\mathfrak{a}} \BGconditional{
+% \mathfrak{F}(\mathfrak{a})
+% }{
+% C(\mathfrak{a})
+% }}}
+% }
+% }
+% \]
+%
+% \StopEventually{}
+%
+% \section{The \dst{} modules}
+%
+% The following modules are used in the implementation to direct
+% \dst{} in generating the external files:
+% \begin{center}
+% \begin{tabular}{ll}
+% driver & produce a documentation driver file \\
+% package & produce a package file \\
+% \end{tabular}
+% \end{center}
+%
+% \section{The Implementation}
+% \subsection{The macro package}
+%
+%<*package>
+% There is one font file for each possible thickness of
+% the Begriff stroke, indicated by an integer giving the
+% value in units of $1/10$pt. We have an option for each
+% of the integers $4,\ldots,12$, and that option detemines
+% the variable |\bguqfont| (with default value for $8/10$pt).
+% \begin{macrocode}
+\def\bguqfont{bguq08}
+\DeclareOption{4}{\def\bguqfont{bguq04}}
+\DeclareOption{5}{\def\bguqfont{bguq05}}
+\DeclareOption{6}{\def\bguqfont{bguq06}}
+\DeclareOption{7}{\def\bguqfont{bguq07}}
+\DeclareOption{8}{\def\bguqfont{bguq08}}
+\DeclareOption{9}{\def\bguqfont{bguq09}}
+\DeclareOption{10}{\def\bguqfont{bguq10}}
+\DeclareOption{11}{\def\bguqfont{bguq11}}
+\DeclareOption{12}{\def\bguqfont{bguq12}}
+\ProcessOptions\relax
+% \end{macrocode}
+% The symbol font declared is just the value of |\bguqfont|.
+% \begin{macrocode}
+\DeclareSymbolFont{\bguqfont}{U}{\bguqfont}{m}{n}
+% \end{macrocode}
+%
+% There is a single special symbol defined from this font:
+% \begin{macrocode}
+\DeclareMathSymbol{\bguq}{\mathord}{\bguqfont}{"20}
+\newlength{\bguqwidth}
+\settowidth{\bguqwidth}{\ensuremath\bguq}
+% \end{macrocode}
+% The character sizing
+% \begin{macrocode}
+\DeclareMathSizes{10}{10}{7}{5}
+% \end{macrocode}
+%</package>
+% \end{macrocode}
+%
+% The next line goes into all files and in addition prevents \dst{}
+% from adding any further code from the main source file (such as a
+% character table).
+% \begin{macrocode}
+\endinput
+% \end{macrocode}
+%
+% \DeleteShortVerb{\|}
+% \Finale