From d88055f74e1704eb1d33ac0cbad87215a9df74e6 Mon Sep 17 00:00:00 2001
From: Jeff LANCE <jeff.lance@mala.fr>
Date: Wed, 23 Sep 2020 20:39:21 +0200
Subject: [PATCH] Up !

---
 commun/commun.sty       |  8 +++++++
 shortcuts/shortcuts.sty | 51 +++++++++++++++++++++++++++++++----------
 2 files changed, 47 insertions(+), 12 deletions(-)

diff --git a/commun/commun.sty b/commun/commun.sty
index 026b140..616be23 100644
--- a/commun/commun.sty
+++ b/commun/commun.sty
@@ -118,6 +118,8 @@
 \RequirePackage{tasks}
 \RequirePackage{dashrule}
 \RequirePackage{qrcode}
+\RequirePackage{verse}
+\RequirePackage{nicefrac}
 %--
 
 
@@ -198,6 +200,12 @@
 %
 %
 
+% \attrib
+% Set author, source and date for a text
+\newcommand{\attrib}[1]{
+  \nopagebreak{\raggedleft\footnotesize #1\par}
+}
+
 % \hcancel[color][size]{text}
 % Strike text with a color and a defined thickness.
 \newcommand\hcancel[2][black]{
diff --git a/shortcuts/shortcuts.sty b/shortcuts/shortcuts.sty
index 9769466..d12f416 100644
--- a/shortcuts/shortcuts.sty
+++ b/shortcuts/shortcuts.sty
@@ -225,45 +225,45 @@
 \NewDocumentCommand \Q { s g } {
     \IfBooleanTF {#1} {
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{Q} \setminus \{0\} \!\!}
+            \ensuremath{\mathbb{Q} \setminus \{0\}}
         }{
-            \ensuremath{\!\!\! \mathbb{Q} \setminus \{0, #2\} \!\!}
+            \ensuremath{\mathbb{Q} \setminus \{0, #2\}}
         }
     }{
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{Q} \!\!}
+            \ensuremath{\mathbb{Q}}
         }{
-            \ensuremath{\!\!\! \mathbb{Q} \setminus \{#2\} \!\!}
+            \ensuremath{\mathbb{Q} \setminus \{#2\}}
         }
     }
 }
 \NewDocumentCommand \D { s g } {
     \IfBooleanTF {#1} {
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{D} \setminus \{0\} \!\!}
+            \ensuremath{\mathbb{D} \setminus \{0\}}
         }{
-            \ensuremath{\!\!\! \mathbb{D} \setminus \{0, #2\} \!\!}
+            \ensuremath{\mathbb{D} \setminus \{0, #2\}}
         }
     }{
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{D} \!\!}
+            \ensuremath{\mathbb{D}}
         }{
-            \ensuremath{\!\!\! \mathbb{D} \setminus \{#2\} \!\!}
+            \ensuremath{\mathbb{D} \setminus \{#2\}}
         }
     }
 }
 \NewDocumentCommand \Z { s g } {
     \IfBooleanTF {#1} {
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{Z} \setminus \{0\} \!\!}
+            \ensuremath{\mathbb{Z} \setminus \{0\}}
         }{
-            \ensuremath{\!\!\! \mathbb{Z} \setminus \{0, #2\} \!\!}
+            \ensuremath{\mathbb{Z} \setminus \{0, #2\}}
         }
     }{
         \IfNoValueTF {#2} {
-            \ensuremath{\!\!\! \mathbb{Z} \!\!}
+            \ensuremath{\mathbb{Z}}
         }{
-            \ensuremath{\!\!\! \mathbb{Z} \setminus \{#2\} \!\!}
+            \ensuremath{\mathbb{Z} \setminus \{#2\}}
         }
     }
 }
@@ -282,6 +282,21 @@
         }
     }
 }
+\NewDocumentCommand \C { s g } {
+    \IfBooleanTF {#1} {
+        \IfNoValueTF {#2} {
+            \ensuremath{\mathbb{C} \setminus \{0\}}
+        }{
+            \ensuremath{\mathbb{C} \setminus \{0, #2\}}
+        }
+    }{
+        \IfNoValueTF {#2} {
+            \ensuremath{\mathbb{C}}
+        }{
+            \ensuremath{\mathbb{C} \setminus \{#2\}}
+        }
+    }
+}
 
 %% dot product
 %%
@@ -309,11 +324,23 @@
     $ #1\big(#2\ ;\ #3\big) $
 }
 
+%% cardinal
+%%
+\NewDocumentCommand \card{ G{E} }{
+    \text{Card($ #1 $)}
+}
+
 %% print the acronym F.I. for "Forme indéterminée" in bold and sans-serif font.
 %%
 \NewDocumentCommand \FI{ } {
     \textsf{\textbf{F.I.}}
 }
+
+%% \nicefrac shortcut
+%%
+\NewDocumentCommand \sfrac{ G{1} G{2}  } {
+  \nicefrac{#1}{#2}
+}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%