1 files changed, 44 insertions, 0 deletions
diff --git a/macros/latex/contrib/ehhline/ehhline.sty b/macros/latex/contrib/ehhline/ehhline.sty
new file mode 100644
index 0000000000..4bfbe9e4d1
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+++ b/macros/latex/contrib/ehhline/ehhline.sty
@@ -0,0 +1,44 @@
+% Copyright (c) 2015-2019 Robert Ryszard Paciorek <rrp@opcode.eu.org>
+% 
+% MIT License
+% 
+% Permission is hereby granted, free of charge, to any person obtaining a copy
+% of this software and associated documentation files (the "Software"), to deal
+% in the Software without restriction, including without limitation the rights
+% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+% copies of the Software, and to permit persons to whom the Software is
+% furnished to do so, subject to the following conditions:
+% 
+% The above copyright notice and this permission notice shall be included in all
+% copies or substantial portions of the Software.
+% 
+% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+% SOFTWARE.
+
+% Version 1.0 (2019-05-13): first public release
+
+
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{ehhline}
+
+\RequirePackageWithOptions{hhline}
+\RequirePackageWithOptions{etoolbox}
+
+% patch \HH@loop macro from hhline to add !{} syntax
+\AtBeginDocument{
+  \patchcmd{\HH@loop}{\PackageWarning{hhline}}{%
+   \ifx\@tempb!\def\next#1#2{%
+       \gdef\HH@height{\dimen\thr@@}%
+       \if@firstamp\@firstampfalse\else\HH@add{&\omit}\fi
+       \HH@add
+          {#2}%
+       \HH@let!}\else
+   \PackageWarning{hhline}
+  }{}{\PackageWarning{ehhline}{Error patch HH@loop}}
+  \patchcmd{\HH@loop}{\fi\fi\fi\fi\fi\fi\fi\fi\fi}{\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}{}{\PackageWarning{ehhline}{Error patch HH@loop}}
+}