diff --git a/.travis/check-sources.sh.py b/.travis/check-sources.sh.py
new file mode 100644
index 0000000..2b001d7
--- /dev/null
+++ b/.travis/check-sources.sh.py
@@ -0,0 +1,35 @@
+import os
+import re
+import sys
+
+def check_encoding(encoding, scan_dir, regex_pattern):
+  fname = None
+  try:
+    assert encoding in ['ascii', 'utf-8'], "unexpected encoding"
+    cmp = re.compile(regex_pattern)
+    for root, dirs, files in os.walk(scan_dir):
+      fname = root
+      cmp_list = [f for f in files if cmp.search(f) is not None]
+      for f in cmp_list:
+        fname = os.path.join(root, f)
+        with open(fname, mode='rb') as test_file:
+          btext = test_file.read()
+        # check encoding
+        btext.decode(encoding=encoding, errors="strict")
+        if encoding == "utf-8" and btext.startswith(b'\xEF\xBB\xBF'):
+          raise ValueError("unexpected BOM in file")
+        # check LF line endings
+        LF = btext.count(b'\n')
+        CR = btext.count(b'\r')
+        if CR!=0:
+          raise ValueError("invalid line endings: LF({})/CR({})".format(LF, CR))
+  except Exception as err:
+    print("ERROR with [{}]: {}".format(fname, err))
+    return -1
+  else:
+    return 0
+
+if __name__ == "__main__":
+  # python check-sources.sh.py 'ascii' '.' '.*\.(cpp|h)$'
+  res = check_encoding(sys.argv[1], sys.argv[2], sys.argv[3])
+  sys.exit(0 if res == 0 else -1)