committed from zkp

pythonkd · pythonkd · commit 0159588c82a0 · 2018-11-17T22:29:33.000+08:00
diff --git a/FluentPython/clip.py b/FluentPython/clip.py
@@ -0,0 +1,17 @@
+def clip(text, max_len=80):
+#     print(len(text))
+    '''在max_len前面或者后面第一个出现的空格处截断文本'''
+    end = None
+    if len(text) > max_len:
+        space_before = text.rfind(' ', 0, max_len)
+#         print(space_before)
+        if space_before >= 0:
+            end = space_before
+        else:
+            space_after = text.rfind(" ", max_len)
+
+            if space_after >= 0:
+                end = space_after
+    if end is None:
+        end = len(text)
+    return text[:end].rstrip()
