1 files changed, 75 insertions, 0 deletions
diff --git a/line_endings.py b/line_endings.py
new file mode 100644
index 000000000..65fe2d129
--- /dev/null
+++ b/line_endings.py
@@ -0,0 +1,75 @@
+""" Functions for converting from DOS to UNIX line endings
+"""
+
+import sys, re, os
+
+def dos2unix(file):
+    "Replace CRLF with LF in argument files.  Print names of changed files."
+    if os.path.isdir(file):
+        print file, "Directory!"
+        return
+
+    data = open(file, "rb").read()
+    if '\0' in data:
+        print file, "Binary!"
+        return
+
+    newdata = re.sub("\r\n", "\n", data)
+    if newdata != data:
+        print 'dos2unix:', file
+        f = open(file, "wb")
+        f.write(newdata)
+        f.close()
+        return file
+    else:
+        print file, 'ok'
+
+def dos2unix_one_dir(modified_files,dir_name,file_names):
+    for file in file_names:
+        full_path = os.path.join(dir_name,file)
+        file = dos2unix(full_path)
+        if file is not None:
+            modified_files.append(file)
+
+def dos2unix_dir(dir_name):
+    modified_files = []
+    os.path.walk(dir_name,dos2unix_one_dir,modified_files)
+    return modified_files
+#----------------------------------
+
+def unix2dos(file):
+    "Replace LF with CRLF in argument files.  Print names of changed files."
+    if os.path.isdir(file):
+        print file, "Directory!"
+        return
+
+    data = open(file, "rb").read()
+    if '\0' in data:
+        print file, "Binary!"
+        return
+    newdata = re.sub("\r\n", "\n", data)
+    newdata = re.sub("\n", "\r\n", newdata)
+    if newdata != data:
+        print 'unix2dos:', file
+        f = open(file, "wb")
+        f.write(newdata)
+        f.close()
+        return file
+    else:
+        print file, 'ok'
+
+def unix2dos_one_dir(modified_files,dir_name,file_names):
+    for file in file_names:
+        full_path = os.path.join(dir_name,file)
+        unix2dos(full_path)
+        if file is not None:
+            modified_files.append(file)
+
+def unix2dos_dir(dir_name):
+    modified_files = []
+    os.path.walk(dir_name,unix2dos_one_dir,modified_files)
+    return modified_files
+
+if __name__ == "__main__":
+    import sys
+    dos2unix_dir(sys.argv[1])