py/objstr: Make dedicated splitlines function, supporting diff newlines.

It now supports \n, \r and \r\n as newline separators.

Adds 56 bytes to stmhal and 80 bytes to unix x86-64.

Fixes issue #1689.

1 files changed, 26 insertions, 8 deletions

diff --git a/tests/basics/string_splitlines.py b/tests/basics/string_splitlines.py
index cb4dacef9..79d22b185 100644
--- a/tests/basics/string_splitlines.py
+++ b/tests/basics/string_splitlines.py
@@ -1,13 +1,31 @@
-try:
-    str.splitlines
-except:
-    import sys
-    print("SKIP")
-    sys.exit()
+# test string.splitlines() method
 
+# test \n as newline
 print("foo\nbar".splitlines())
 print("foo\nbar\n".splitlines())
+print("foo and\nbar\n".splitlines())
+print("foo\nbar\n\n".splitlines())
+print("foo\n\nbar\n\n".splitlines())
+print("\nfoo\nbar\n".splitlines())
+
+# test \r as newline
+print("foo\rbar\r".splitlines())
+print("\rfoo and\r\rbar\r".splitlines())
+
+# test \r\n as newline
+print("foo\r\nbar\r\n".splitlines())
+print("\r\nfoo and\r\n\r\nbar\r\n".splitlines())
+
+# test keepends arg
 print("foo\nbar".splitlines(True))
 print("foo\nbar\n".splitlines(True))
-print("foo\nbar".splitlines(keepends=True))
-print("foo\nbar\n".splitlines(keepends=True))
+print("foo\nbar\n\n".splitlines(True))
+print("foo\rbar".splitlines(keepends=True))
+print("foo\rbar\r\r".splitlines(keepends=True))
+print("foo\r\nbar".splitlines(keepends=True))
+print("foo\r\nbar\r\n\r\n".splitlines(keepends=True))
+
+# test splitting bytes objects
+print(b"foo\nbar".splitlines())
+print(b"foo\nbar\n".splitlines())
+print(b"foo\r\nbar\r\n\r\n".splitlines(True))