put wrapping code in util.py

--HG--
branch : pmacs2

mode/consolemini.py

@@ -3,7 +3,9 @@ import re
 import StringIO
 import sys
 import traceback
+
 import completer
+import util
 from method import Method
 import method.move
 import mode.mini
@@ -66,23 +68,12 @@ class ConsoleExec(Method):
         limit = min([w.width for w in b.windows]) - len(PAD)
 
         if output:
-            newlines = []
+            lines = []
             for line in output.split('\n'):
-                i = 0
-                while i + limit < len(line):
-                    j = limit
-                    while j > 0 and line[i + j] != ' ':
-                        j -= 1
-                    if j == 0:
-                        newlines.append(PAD + line[i:i + limit])
-                        i += limit
-                    else:
-                        newlines.append(PAD + line[i:i + j])
-                        i += j + 1
-                newlines.append(PAD + line[i:])
-            assert newlines[-1] == PAD
-            newlines[-1] = ''
-            b.insert_lines(b.get_buffer_end(), newlines, force=True)
+                lines.extend([PAD + l for l in util.wrap_lines(line, limit)])
+            if lines[-1] == PAD:
+                lines[-1] = ''
+            b.insert_lines(b.get_buffer_end(), lines, force=True)
         for w2 in b.windows:
             w2.goto_end(force=True)
 

util.py

@@ -152,3 +152,19 @@ def communicate(cmd, stdin=None, stderr=False, shell=True):
     out, err = pipe.communicate(input=stdin)
     result = pipe.wait()
     return result, decode(out or ''), decode(err or '')
+
+def wrap_lines(s, limit):
+    '''given a string, return an iterator of wrapped lines'''
+    i = 0
+    while i + limit < len(s):
+        j = limit
+        while j > 0 and s[i + j] != ' ':
+            j -= 1
+        if j == 0:
+            yield s[i:i + limit]
+            i += limit
+        else:
+            yield s[i:i + j]
+            i += j + 1
+    if s[i:]:
+        yield s[i:]