%% Copyright 2019 Clea F. Rees
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
%
% The Current Maintainer of this work is Clea F. Rees.
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% This work consists of all files listed in manifest.txt.

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{ebgaramond-maths}[2019/09/24 v1.2 ebgaramond-maths for use with EBGaramond]

\RequirePackage{ebgaramond}

% \pdfmapfile{+EBGaramond-Maths.map}

\DeclareSymbolFont{letters}   {OML}   {EBGaramond-Maths} {m} {it}
\DeclareSymbolFont{operators} {OT1}   {EBGaramond-LF}    {m} {n}

\SetSymbolFont{letters}   {bold}  {OML} {EBGaramond-Maths} {b}  {it}
\SetSymbolFont{operators} {bold}  {OT1} {EBGaramond-LF}    {bx} {n}

\DeclareFontSubstitution{OML}{EBGaramond-Maths}{m}{it}
\DeclareFontSubstitution{OT1}{EBGaramond-LF}{m}{n}

\SetMathAlphabet{\mathbf}   {normal}  {OT1} {EBGaramond-LF} {bx} {n}
\SetMathAlphabet{\mathbf}   {bold}    {OT1} {EBGaramond-LF} {bx} {n}
\SetMathAlphabet{\mathit}   {normal}  {OT1} {EBGaramond-LF} {m}  {it}
\SetMathAlphabet{\mathit}   {bold}    {OT1} {EBGaramond-LF} {bx} {it}

\DeclareMathAlphabet{\mathcal} {OT1} {EBGaramond-LF} {m} {sw}

% The following symbols are missing and should give errors

\gdef\ebgaramond@maths@help{%
  EBGaramond does not provide this symbol.\MessageBreak
  If you are using the recommended setup with newtxmath\MessageBreak
  you can use \string\re@DeclareMathSymbol{}{}{}{} to take it from another font.\MessageBreak
  For example, to take symbols from Computer Modern:\MessageBreak
  \expandafter\noexpand\string\DeclareSymbolFont{cmletters}{OML}{cmm} {m}{it}\MessageBreak
  Then a specific symbol, such as \string\leftharpoonup, can be defined as follows:\MessageBreak
  \expandafter\noexpand\string\re@DeclareMathSymbol{\string\leftharpoonup}{\mathrel}{cmletters}{"28}}

% Warning based on David Carlisle's answer at http://tex.stackexchange.com/a/214524/
\newcommand*{\ebgaramond@maths@dim}{\leftharpoonup,\leftharpoondown,\rightharpoonup,\rightharpoondown,\triangleright,\triangleleft,\star,\partial,\flat,\natural,\sharp,\smile,\frown,\vec,\t}
\@for \xx:=\ebgaramond@maths@dim \do {%
  \expandafter\edef\xx{\noexpand\PackageError{ebgaramond-maths}{No \expandafter\string\xx}{\ebgaramond@maths@help}}}

\endinput

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