From 45beede2b82f5e987f9edfa5f4757b322ee78059 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20de=20Favereau?=
 <jerome.defavereau@uclouvain.be>
Date: Wed, 30 Sep 2020 08:51:28 +0200
Subject: [PATCH] Update ex3.py : add alternate solution without find (not seen
 in course).

---
 Chapter_3/ex3.py | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/Chapter_3/ex3.py b/Chapter_3/ex3.py
index 845ddf2..bf99c0d 100644
--- a/Chapter_3/ex3.py
+++ b/Chapter_3/ex3.py
@@ -1,4 +1,3 @@
-
 txt="Les objectifs de Python en font un langage pedagogique ideal.C'est un langage     general-purpose:il s'adapte a toutes les applications"
 
 seperatorList = " ,.;-'\":\n/\\?+()’!°"
@@ -22,3 +21,25 @@ while len(txt) > 0:
         txt=""
 
 print("Il y a {0} mots dans la phrase.".format(n_words))
+
+# solution alternative sans utiliser "find"
+# moins optimale sur de grands textes
+
+in_word = False
+words = []
+curword = ""
+
+for letter in txt:
+    if letter in separators:
+        if in_word:
+            words.append(curword)
+            curword = ""
+            in_word = False
+    else:
+        in_word = True
+        curword += letter
+
+if in_word:
+    words += curword
+
+print("il y a", len(words), "mot(s)")
\ No newline at end of file
-- 
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