From a6d06c4f538631cdeec6a9fbcd7d936344b1d5c0 Mon Sep 17 00:00:00 2001
From: Grzegorz Rogozik <s402281@pc02f.labs.wmi.amu.edu.pl>
Date: Sun, 12 Jan 2020 13:28:13 +0100
Subject: [PATCH] add regex exercises

---
 regexp/Task301.py |  9 +++++++++
 regexp/Task302.py | 14 ++++++++++++++
 regexp/Task303.py |  6 ++++++
 regexp/Task328.py |  6 ++++++
 4 files changed, 35 insertions(+)
 create mode 100644 regexp/Task301.py
 create mode 100644 regexp/Task302.py
 create mode 100644 regexp/Task303.py
 create mode 100644 regexp/Task328.py

diff --git a/regexp/Task301.py b/regexp/Task301.py
new file mode 100644
index 0000000..ec0e314
--- /dev/null
+++ b/regexp/Task301.py
@@ -0,0 +1,9 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+import re
+def letter_and_two_digits(napis):
+    if re.search(r'[A-Z]\d{2}', napis):
+        return True
+    else:
+        return False
diff --git a/regexp/Task302.py b/regexp/Task302.py
new file mode 100644
index 0000000..25d688d
--- /dev/null
+++ b/regexp/Task302.py
@@ -0,0 +1,14 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+import re
+
+
+def extract_minutes(string):
+    pattern = r'^([0-9]|1[0-9]|2[0-3]):([0-5][0-9])$'
+    out = re.search(pattern, string)
+
+    if out is None:
+        return '<NONE>'
+    else:
+        return out.group(2)
diff --git a/regexp/Task303.py b/regexp/Task303.py
new file mode 100644
index 0000000..e9f3ab9
--- /dev/null
+++ b/regexp/Task303.py
@@ -0,0 +1,6 @@
+import re
+
+
+def divisable_by_four(string):
+    pattern = '^[048]$|^[0-9]*([13579][26]|[2468][048])$|^[1-9][0-9]*(00|04|08)$'
+    return re.search(pattern, string)
diff --git a/regexp/Task328.py b/regexp/Task328.py
new file mode 100644
index 0000000..a114c04
--- /dev/null
+++ b/regexp/Task328.py
@@ -0,0 +1,6 @@
+import re
+
+
+def is_hmmmm(string):
+    pattern = r'^hm{2,}(\.{3,}|)$'
+    return re.search(pattern, string)