From c9b6b9a5ca082fe7c1b6f58d7713f785a9eb6a5c Mon Sep 17 00:00:00 2001
From: Martial Simon <msimon_fr@hotmail.com>
Date: Mon, 15 Sep 2025 01:08:27 +0200
Subject: add: graphs et rushs

---
 rushs/tinyprintf/alphanum/alphanum.sh | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100755 rushs/tinyprintf/alphanum/alphanum.sh

(limited to 'rushs/tinyprintf/alphanum/alphanum.sh')

diff --git a/rushs/tinyprintf/alphanum/alphanum.sh b/rushs/tinyprintf/alphanum/alphanum.sh
new file mode 100755
index 0000000..e4c5aee
--- /dev/null
+++ b/rushs/tinyprintf/alphanum/alphanum.sh
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+letters()
+{
+    grepped=$(echo "$1" | grep -E "^[a-zA-Z]+$")
+    [ "$1" = "$grepped" ] && return 0 || return 1
+}
+
+empty()
+{
+    if echo "$1" | grep -qE '^[[:space:]]+$'; then
+        return 0
+    fi
+    return 1
+}
+
+digit()
+{
+    grepped=$(echo "$1" | grep -E "^[0-9]$")
+    [ "$1" = "$grepped" ] && return 0 || return 1
+}
+
+number()
+{
+    grepped=$(echo "$1" | grep -E "^[1-9][0-9]+$")
+    [ "$1" = "$grepped" ] && return 0 || return 1
+}
+
+alph()
+{
+    grepped=$(echo "$1" | grep -E "^[a-zA-Z0-9]+$")
+    [ "$1" = "$grepped" ] && return 0 || return 1
+}
+
+while IFS='' read -r str; do
+    if [ -z "$str" ]; then
+        echo it is empty
+        continue
+    elif letters "$str"; then
+        echo "it is a word"
+    elif number "$str"; then
+        echo "it is a number"
+    elif digit "$str"; then
+        echo "it is a digit"
+    elif empty "$str"; then
+        echo "it is empty"
+    elif alph "$str"; then
+        echo "it is an alphanum"
+    else
+        echo "it is too complicated"
+        exit
+    fi
+done
-- 
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