1 files changed, 46 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/latex/extarrows/extarrows.sty b/Master/texmf-dist/tex/latex/extarrows/extarrows.sty
new file mode 100644
index 00000000000..b795f12f579
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/extarrows/extarrows.sty
@@ -0,0 +1,46 @@
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{ccc-arrows}[2002/03/30 v1.0a ccc: Extensible Arrows]
+
+\RequirePackage{amsmath}
+
+\def\x@arrow{\DOTSB\Relbar}
+\def\xlongequalsignfill@{\arrowfill@\x@arrow\Relbar\x@arrow}
+
+\newcommand{\xlongequal}[2][]{%
+	\ext@arrow 0099\xlongequalsignfill@{#1}{#2}}
+
+\def\xLongleftrightarrowfill@{%
+  \arrowfill@\Longleftarrow\Relbar\Longrightarrow}
+\newcommand{\xLongleftrightarrow}[2][]{%
+	\ext@arrow 0099\xLongleftrightarrowfill@{#1}{#2}}
+
+\def\xlongleftrightarrowfill@{%
+  \arrowfill@\longleftarrow\relbar\longrightarrow}
+\newcommand{\xlongleftrightarrow}[2][]{%
+	\ext@arrow 0099\xlongleftrightarrowfill@{#1}{#2}}
+
+\def\xLeftrightarrowfill@{\arrowfill@\Leftarrow\Relbar\Rightarrow}
+\newcommand{\xLeftrightarrow}[2][]{%
+	\ext@arrow 0099\xLeftrightarrowfill@{#1}{#2}}
+
+\def\xleftrightarrowfill@{\arrowfill@\leftarrow\relbar\rightarrow}
+\newcommand{\xleftrightarrow}[2][]{%
+	\ext@arrow 0099\xleftrightarrowfill@{#1}{#2}}
+
+\def\xLongleftarrowfill@{\arrowfill@\Longleftarrow\Relbar\Relbar}
+\newcommand{\xLongleftarrow}[2][]{%
+	\ext@arrow 0099\xLongleftarrowfill@{#1}{#2}}
+
+\def\xLongrightarrowfill@{\arrowfill@\Relbar\Relbar\Longrightarrow}
+\newcommand{\xLongrightarrow}[2][]{%
+	\ext@arrow 0099\xLongrightarrowfill@{#1}{#2}}
+
+\def\xlongleftarrowfill@{\arrowfill@\longleftarrow\relbar\relbar}
+\newcommand{\xlongleftarrow}[2][]{%
+	\ext@arrow 0099\xlongleftarrowfill@{#1}{#2}}
+
+\def\xlongrightarrowfill@{\arrowfill@\relbar\relbar\longrightarrow}
+\newcommand{\xlongrightarrow}[2][]{%
+	\ext@arrow 0099\xlongrightarrowfill@{#1}{#2}}
+
+\endinput