Ignore private control functions

chromaterm/__main__.py

@@ -30,9 +30,9 @@
 READ_SIZE = 4096  # 4 KiB
 
 # Sequences upon which ct will split during processing. This includes new lines,
-# vertical spaces, form feeds, C1 set (ECMA-048), SCS (G0 through G3 sets),
-# CSI (excluding SGR), and OSC.
-SPLIT_RE = re.compile(br'(\r\n?|\n|\v|\f|\x1b[\x40-\x5a\x5c\x5e\x5f]|'
+# vertical spaces, form feeds, private control functions (ECMA-035) and C1 set
+# (ECMA-048), SCS (G0 through G3 sets), CSI (excluding SGR), and OSC.
+SPLIT_RE = re.compile(br'(\r\n?|\n|\v|\f|\x1b[\x30-\x5a\x5c\x5e\x5f]|'
                       br'\x1b[\x28-\x2b\x2d-\x2f][\x20-\x7e]|'
                       br'\x1b\x5b[\x30-\x3f]*[\x20-\x2f]*[\x40-\x6c\x6e-\x7e]|'
                       br'\x1b\x5d[^\x07\x1b]*(?:\x07|\x1b\x5c)?)')

tests/test__main__.py

@@ -653,6 +653,15 @@ def test_split_buffer_printer_commands():
         assert chromaterm.__main__.split_buffer(data) == expected
 
 
+def test_split_buffer_private_control_functions():
+    '''Split based on the ECMA-035 private control functions.'''
+    for char_id in range(int('30', 16), int('40', 16)):
+        data = b'Hello \x1b%c World' % char_id
+        expected = ((b'Hello ', b'\x1b%c' % char_id), (b' World', b''))
+
+        assert chromaterm.__main__.split_buffer(data) == expected
+
+
 def test_split_buffer_c1_set():
     '''Split based on the ECMA-048 C1 set, excluding CSI and OSC.'''
     c1_except_csi_and_osc = itertools.chain(