maybemath

git-svn-id: svn://tug.org/texlive/trunk@1076 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/texmf-dist/tex/latex/maybemath/maybemath.sty b/Master/texmf-dist/tex/latex/maybemath/maybemath.sty
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+\ProvidesPackage{maybemath}[2004/11/29]
+\RequirePackage{bm}
+
+%% A few commands for making math fonts bold or italic
+%% according to the context of surrounding text. It is
+%% particularly useful for avoiding problems with math
+%% boldness in section titles causing unwanted boldness
+%% in e.g. the table of contents.
+%%
+%% Thanks to Viet-Trung Luu on comp.text.tex for providing 
+%% the first steps to solving this problem.
+%%
+%% This material is subject to the LaTeX Project Public License. 
+%% See http://www.ctan.org/tex-archive/help/Catalogue/licenses.lppl.html
+%% for the details of that license.
+%%
+%% Author: Andy Buckley <andy@insectnation.org>
+
+
+%% Use the bold symbol if reqd for math fonts
+\DeclareRobustCommand{\maybebm}[1]{%
+    \def\boldname{b}%
+    \def\boldexname{bx}%
+    \ifx\f@series\boldname%
+        \boldsymbol{#1}%
+    \else\ifx\f@series\boldexname%
+        \boldsymbol{#1}%
+    \else%
+        #1%
+    \fi\fi%
+}
+
+%% Use \mathrm if not in italic context
+%% (``backward logic'' for a reason)
+\def\italname{it}%
+\DeclareRobustCommand{\maybeit}[1]{%
+  \ifx\f@shape\italname%
+    {#1}%
+  \else%
+    {\mathrm{#1}}%
+  \fi%
+}
+
+%% Maybe-italic subscript shifting
+\DeclareRobustCommand{\maybeitsubscript}[1]{%
+  \ifx\f@shape\italname%
+    {\!\!#1}%
+  \else%
+    {#1}%
+  \fi%
+}
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