1 files changed, 28 insertions, 0 deletions
diff --git a/misc/isPhoneNumber.py b/misc/isPhoneNumber.py
new file mode 100644
index 0000000..6048841
--- /dev/null
+++ b/misc/isPhoneNumber.py
@@ -0,0 +1,28 @@
+#! /usr/bin/env python3
+# RegEx Chap. 7
+
+
+def isPhoneNumber(text):
+    if len(text) != 12:
+        return False
+    for i in range(0, 3):
+        if not text[i].isdecimal():
+            return False
+    if text[3] != '-':
+        return False
+    for i in range(4, 7):
+        if not text[i].isdecimal():
+            return False
+    if text[7] != '-':
+        return False
+    for i in range(8, 12):
+        if not text[i].isdecimal():
+            return False
+    return True
+
+message = 'Call me at 415-555-1011 tomorrow. 415-555-9999 is my office.'
+for i in range(len(message)):
+    chunk = message[i:i+12]
+    if isPhoneNumber(chunk):
+        print('Phone number found: ' + chunk)
+print('Done')