From 4b3e24f9fd2358785feef4daa64d4fdf84171f02 Mon Sep 17 00:00:00 2001 From: Karl Berry Date: Mon, 26 Apr 2010 00:19:50 +0000 Subject: sansmath doc+own pkg (22apr10) git-svn-id: svn://tug.org/texlive/trunk@17997 c570f23f-e606-0410-a88d-b1316a301751 --- Master/texmf-dist/tex/latex/sansmath/sansmath.sty | 228 ++++++++++++++++++++++ 1 file changed, 228 insertions(+) create mode 100644 Master/texmf-dist/tex/latex/sansmath/sansmath.sty (limited to 'Master/texmf-dist/tex/latex/sansmath') diff --git a/Master/texmf-dist/tex/latex/sansmath/sansmath.sty b/Master/texmf-dist/tex/latex/sansmath/sansmath.sty new file mode 100644 index 00000000000..cca83737096 --- /dev/null +++ b/Master/texmf-dist/tex/latex/sansmath/sansmath.sty @@ -0,0 +1,228 @@ +% LaTeX package sansmath: typeset sans-serif math using `text' fonts. +% +\ProvidesPackage{sansmath}[2007/02/28 \space ver 1.1 Donald Arseneau] +% +% Donald Arseneau, asnd@triumf.ca, Vancouver, Canada. +% +% This package is released to the public domain by me, Donald Arseneau, +% the original author, who disclaims all rights. I do not support it, +% and request that it be adopted and supported by someone who knows +% more about math font issues in LaTeX. +% +% The point of this package is to allow sans-serif math in the absence +% of proper sans math fonts. +% +% The author was persuaded to use the name `sansmath' in hopes of +% working with various text sans fonts (indicated by \sfdefault) +% but the only good results seen were with Computer Modern and cmss. +% (Helvetica with the `pslatex' package was very poor!) +% +% INSTRUCTIONS +% ~~~~~~~~~~~~ +% Load this package by inserting `\usepackage{sansmath}' in the +% document preamble. This will define a new math version `sans' +% and a command `\sansmath', much like `\boldmath'. There is also +% an `\unsansmath' defined, but if math is to be sans-serif for +% a region of a document, one should declare `\sansmath' in a local +% group (perhaps with \begin{sansmath}...\end{sansmath}). +% Within the scope of the \sansmath declaration, math characters +% will be taken from the text sans-serif family as much as possible. +% The actual sans fonts are OT1 encodings of those indicated by the +% meaning of \sfdefault WHEN THE PACKAGE WAS LOADED -- not the +% meaning at each math environment! +% +% Since the (OT1) text fonts do not provide the lower-case greek +% letters, there is a package option [eulergreek] to take the +% lowercase greek from the Euler math fonts. +% Since some (many) sans fonts have no uppercase greek letters either +% (missing characters from the OT1 encoding), there is an option +% [EULERGREEK] to take ALL greek letters from the euler fonts. +% One should also investigate using Euler for ALL MATH in the document, +% using package `euler' instead of this one! +% +% OT1 encoding is normally required to get the uppercase greek letters, +% but if you use the [EULERGREEK] option or don't use any uppercase greek +% letters, then you are welcome to define \sansmathencoding *before* +% loading this package. There is also a package option [T1] to perform +% that particuler definition. Note the comment above about only cmms +% being good; even the T1-encoded ec fonts are poor substitutes. +% +% This package achieves math-italic by reloading the slanted version +% of the text sans-serif font, and changing a fontdimen parameter +% (spaceskip). This causes the italic correction to be applied between +% letters (good) but does not break up the `fi' and `fl' ligatures (bad) +% (Why does a sans font have these ligatures anyway?) At this point, +% nothing is done about this bug. + +\providecommand\sansmathencoding{OT1} +\DeclareOption{T1}{ + \def\sansmathencoding{T1} +} + +\let\EulGreek\relax +\let\EuUCGreek\relax +\let\NonEulGreek\relax +\DeclareOption{EULERGREEK}{ + \ExecuteOptions{eulergreek} + \def\EuUCGreek{% + \@euG\Gamma \@euG\Delta \@euG\Theta \@euG\Lambda \@euG\Xi \@euG\Pi + \@euG\Sigma \@euG\Upsilon \@euG\Phi \@euG\Psi \@euG\Omega +}} +\DeclareOption{eulergreek}{ + \def\EulGreek{% + \ifnum\alpha<\@eugreekOffset % avoid multi-mapping when repeated + \EulGreekList + \EuUCGreek + \let\varrho\rho \let\varsigma\sigma % Euler's missing variants + \fi +} +\def\EulGreekList{\@eug\alpha \@eug\beta \@eug\gamma \@eug\delta + \@eug\epsilon \@eug\zeta \@eug\eta \@eug\theta \@eug\iota \@eug\kappa + \@eug\lambda + \@eug\mu \@eug\nu \@eug\xi \@eug\pi \@eug\rho \@eug\sigma \@eug\tau + \@eug\upsilon \@eug\phi \@eug\chi \@eug\psi \@eug\omega + \@eug\varepsilon \@eug\vartheta \@eug\varpi \@eug\varphi +} +\def\NonEulGreek{% Reverse previous mapping + \ifnum\alpha>\@eugreekOffset % avoid multi-mapping when repeated + \@eugreekOffset=-\@eugreekOffset \@euGREEKOffset=-\@euGREEKOffset + \EulGreekList + \EuUCGreek + \@eugreekOffset=-\@eugreekOffset \@euGREEKOffset=-\@euGREEKOffset + \fi +}} + +\ProcessOptions + +\DeclareMathAlphabet{\mathsfsl}{\sansmathencoding}{\sfdefault}{m}{sl} +\DeclareOldFontCommand{\sfsl}{\normalfont\sffamily\slshape}{\mathsfsl} +\DeclareMathAlphabet{\mathsfbf}{\sansmathencoding}{\sfdefault}{bx}{sl} +\DeclareOldFontCommand{\sfbf}{\normalfont\sffamily\bfseries}{\mathsfbf} + +\DeclareMathVersion{sans} +\SetMathAlphabet{\mathrm} {sans}{\sansmathencoding}{\sfdefault}{m}{n} +\SetMathAlphabet{\mathsfsl}{sans}{\sansmathencoding}{\sfdefault}{m}{sl} +\SetSymbolFont {operators}{sans}{OT1}{\sfdefault}{m}{n} + +% The cmm and cmsy are too light for cmss. I tried {b} for the next +% two lines, but it did not work well (unbold +, bold greek, bad \neq) +\SetSymbolFont {letters} {sans}{OML}{cmm} {m}{it} +\SetSymbolFont {symbols} {sans}{OMS}{cmsy}{m}{n} + +\SetMathAlphabet{\mathsfbf}{sans}{\sansmathencoding}{\sfdefault}{bx}{n} + +\DeclareMathSymbol{0}{\mathord}{operators}{`0} +\DeclareMathSymbol{1}{\mathord}{operators}{`1} +\DeclareMathSymbol{2}{\mathord}{operators}{`2} +\DeclareMathSymbol{3}{\mathord}{operators}{`3} +\DeclareMathSymbol{4}{\mathord}{operators}{`4} +\DeclareMathSymbol{5}{\mathord}{operators}{`5} +\DeclareMathSymbol{6}{\mathord}{operators}{`6} +\DeclareMathSymbol{7}{\mathord}{operators}{`7} +\DeclareMathSymbol{8}{\mathord}{operators}{`8} +\DeclareMathSymbol{9}{\mathord}{operators}{`9} +\DeclareMathSymbol{!}{\mathclose}{operators}{"21} +\DeclareMathSymbol{,}{\mathpunct}{operators}{`\,} +\DeclareMathSymbol{.}{\mathord}{operators}{`\.} +\DeclareMathSymbol{:}{\mathrel}{operators}{`\:} +\DeclareMathSymbol{;}{\mathpunct}{operators}{`\;} +\DeclareMathSymbol{?}{\mathclose}{operators}{`\?} +%\DeclareMathSymbol{+}{\mathbin}{operators}{"2B} +%\DeclareMathSymbol{=}{\mathrel}{operators}{`\=} + + +\ifx\EulGreek\relax\else + \DeclareSymbolFont{EulerGreek}{U}{eur}{m}{n} + \SetSymbolFont{EulerGreek}{sans}{U}{eur}{m}{n} + \DeclareSymbolFontAlphabet\matheug{EulerGreek} + + \newcount\@eugreekOffset + \let\@tempa\relax + \DeclareMathSymbol{\@tempa}{\mathord}{EulerGreek}{11} + \@eugreekOffset\@tempa + \advance\@eugreekOffset-\alpha + + \def\@eug#1{\@tempcnta#1\advance\@tempcnta\@eugreekOffset + %\message{Change \string#1 from \number#1 to \number\@tempcnta}% + \mathchardef#1\@tempcnta} + + \ifx\EuUCGreek\relax\else + + \newcount\@euGREEKOffset + \let\@tempa\relax + \DeclareMathSymbol{\@tempa}{\mathord}{EulerGreek}{1} + \@euGREEKOffset\@tempa + \advance\@euGREEKOffset-\Delta + + \def\@euG#1{\@tempcnta#1\advance\@tempcnta\@euGREEKOffset + \mathchardef#1\@tempcnta} + \fi +\fi + +\def\sfMathSwitch{\sfsl + \make@math@version@font \textfont \fam \tf@size + \make@math@version@font \scriptfont \fam \sf@size + \make@math@version@font \scriptscriptfont \fam \ssf@size +} + +\def\make@math@version@font #1#2#3{% + \begingroup + \escapechar\m@ne + \xdef\sansm@name{\expandafter\string\the#1#2+}% + \endgroup + \@ifundefined{\sansm@name}{% + \@load@variant@font \sansm@name{#1#2}{#3\p@}}{}% + #1#2\csname \sansm@name\endcsname +} + +\begingroup +\catcode`\A=12 \catcode`\T=12 +\lowercase{% necessary because \fontname\font produces "at" in catcode 12. +\endgroup +% +\def\@load@variant@font #1#2#3{\expandafter\@do@load@varfont + \csname #1\expandafter\endcsname \fontname#2 AT #3 AT \relax } +% +\def\@do@load@varfont #1#2 AT #3 AT #4\relax{% + \dimen@#3\advance\dimen@ 1sp + \global\font #1=#2 at \dimen@ + \fontdimen\tw@#1=\z@} +} + +\def\sansmath{% + \ifx\mnorm@mathbf\mathbf\else \let\mnorm@mathbf\mathbf \fi + \mathversion{sans}% + \let\mathbf\mathsfbf + \let\sansm@every@math\sfMathSwitch + \EulGreek +} + +\def\unsansmath{% + \mathversion{normal}% + \let\mathbf\mnorm@mathbf + \let\sansm@every@math\relax + \NonEulGreek +} + +\expandafter\def\expandafter\check@mathfonts\expandafter{\check@mathfonts + \sansm@every@math} + +\let\sansm@every@math\relax +\let\mnorm@mathbf\mathbf + +% Repair of a LaTeX bug that has not been fixed in 6 years. +% Latex bug: latex/3357 + +\def \@fontswitch #1#2{% + \ifmmode + \let \math@bgroup \relax + \def \math@egroup ##1{% + \let \math@bgroup \@@math@bgroup + \let \math@egroup \@@math@egroup + ##1}% + #2\relax + \else + #1% + \fi +} + -- cgit v1.2.3