[pypy-commit] pypy default: Add a readline() method to speed up reading lines out of a text file on

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r73319:316def1241d1
Date: 2014-09-05 17:09 +0200
http://bitbucket.org/pypy/pypy/changeset/316def1241d1/

Log:	Add a readline() method to speed up reading lines out of a text file
	on Windows

diff --git a/rpython/rlib/streamio.py b/rpython/rlib/streamio.py
--- a/rpython/rlib/streamio.py
+++ b/rpython/rlib/streamio.py
@@ -900,6 +900,13 @@
 
         return '\n'.join(result)
 
+    def readline(self):
+        line = self.base.readline()
+        limit = len(line) - 2
+        if limit >= 0 and line[limit] == '\r' and line[limit + 1] == '\n':
+            line = line[:limit] + '\n'
+        return line
+
     def tell(self):
         pos = self.base.tell()
         return pos - len(self.lfbuffer)