From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001
From: Norbert Preining <norbert@preining.info>
Date: Mon, 2 Sep 2019 13:46:59 +0900
Subject: Initial commit

---
 macros/latex/contrib/extarrows/extarrows.sty | 46 ++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 macros/latex/contrib/extarrows/extarrows.sty

(limited to 'macros/latex/contrib/extarrows/extarrows.sty')

diff --git a/macros/latex/contrib/extarrows/extarrows.sty b/macros/latex/contrib/extarrows/extarrows.sty
new file mode 100644
index 0000000000..f89ba3c319
--- /dev/null
+++ b/macros/latex/contrib/extarrows/extarrows.sty
@@ -0,0 +1,46 @@
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{extarrows}[2008/05/15 v1.0b Some extensible arrows]
+
+\RequirePackage{amsmath}
+
+\def\x@arrow{\DOTSB\Relbar}
+\def\xlongequalsignfill@{\arrowfill@\x@arrow\Relbar\x@arrow}
+
+\providecommand{\xlongequal}[2][]{%
+	\ext@arrow 0099\xlongequalsignfill@{#1}{#2}}
+
+\def\xLongleftrightarrowfill@{%
+  \arrowfill@\Longleftarrow\Relbar\Longrightarrow}
+\providecommand{\xLongleftrightarrow}[2][]{%
+	\ext@arrow 0099\xLongleftrightarrowfill@{#1}{#2}}
+
+\def\xlongleftrightarrowfill@{%
+  \arrowfill@\longleftarrow\relbar\longrightarrow}
+\providecommand{\xlongleftrightarrow}[2][]{%
+	\ext@arrow 0099\xlongleftrightarrowfill@{#1}{#2}}
+
+\def\xLeftrightarrowfill@{\arrowfill@\Leftarrow\Relbar\Rightarrow}
+\providecommand{\xLeftrightarrow}[2][]{%
+	\ext@arrow 0099\xLeftrightarrowfill@{#1}{#2}}
+
+\def\xleftrightarrowfill@{\arrowfill@\leftarrow\relbar\rightarrow}
+\providecommand{\xleftrightarrow}[2][]{%
+	\ext@arrow 0099\xleftrightarrowfill@{#1}{#2}}
+
+\def\xLongleftarrowfill@{\arrowfill@\Longleftarrow\Relbar\Relbar}
+\providecommand{\xLongleftarrow}[2][]{%
+	\ext@arrow 0099\xLongleftarrowfill@{#1}{#2}}
+
+\def\xLongrightarrowfill@{\arrowfill@\Relbar\Relbar\Longrightarrow}
+\providecommand{\xLongrightarrow}[2][]{%
+	\ext@arrow 0099\xLongrightarrowfill@{#1}{#2}}
+
+\def\xlongleftarrowfill@{\arrowfill@\longleftarrow\relbar\relbar}
+\providecommand{\xlongleftarrow}[2][]{%
+	\ext@arrow 0099\xlongleftarrowfill@{#1}{#2}}
+
+\def\xlongrightarrowfill@{\arrowfill@\relbar\relbar\longrightarrow}
+\providecommand{\xlongrightarrow}[2][]{%
+	\ext@arrow 0099\xlongrightarrowfill@{#1}{#2}}
+
+\endinput
-- 
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