add ydb deps

1 files changed, 45 insertions, 0 deletions

diff --git a/contrib/python/prompt-toolkit/py2/prompt_toolkit/styles/utils.py b/contrib/python/prompt-toolkit/py2/prompt_toolkit/styles/utils.py
new file mode 100644
index 0000000000..6087e76abe
--- /dev/null
+++ b/contrib/python/prompt-toolkit/py2/prompt_toolkit/styles/utils.py
@@ -0,0 +1,45 @@
+from __future__ import unicode_literals
+from .base import DEFAULT_ATTRS, Attrs
+
+__all__ = (
+    'split_token_in_parts',
+    'merge_attrs',
+)
+
+
+def split_token_in_parts(token):
+    """
+    Take a Token, and turn it in a list of tokens, by splitting
+    it on ':' (taking that as a separator.)
+    """
+    result = []
+    current = []
+    for part in token + (':', ):
+        if part == ':':
+            if current:
+                result.append(tuple(current))
+                current = []
+        else:
+            current.append(part)
+
+    return result
+
+
+def merge_attrs(list_of_attrs):
+    """
+    Take a list of :class:`.Attrs` instances and merge them into one.
+    Every `Attr` in the list can override the styling of the previous one.
+    """
+    result = DEFAULT_ATTRS
+
+    for attr in list_of_attrs:
+        result = Attrs(
+            color=attr.color or result.color,
+            bgcolor=attr.bgcolor or result.bgcolor,
+            bold=attr.bold or result.bold,
+            underline=attr.underline or result.underline,
+            italic=attr.italic or result.italic,
+            blink=attr.blink or result.blink,
+            reverse=attr.reverse or result.reverse)
+
+    return result