X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/3f68af9813542a5e277b7a51b316644241c372d7..dc71922c768e543c9c3bbb1db5ea6d7fa801a814:/.vim/bundle/black/src/black/numerics.py?pf=etc

diff --git a/.vim/bundle/black/src/black/numerics.py b/.vim/bundle/black/src/black/numerics.py
new file mode 100644
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+++ b/.vim/bundle/black/src/black/numerics.py
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+"""
+Formatting numeric literals.
+"""
+from blib2to3.pytree import Leaf
+
+
+def format_hex(text: str) -> str:
+    """
+    Formats a hexadecimal string like "0x12B3"
+    """
+    before, after = text[:2], text[2:]
+    return f"{before}{after.upper()}"
+
+
+def format_scientific_notation(text: str) -> str:
+    """Formats a numeric string utilizing scentific notation"""
+    before, after = text.split("e")
+    sign = ""
+    if after.startswith("-"):
+        after = after[1:]
+        sign = "-"
+    elif after.startswith("+"):
+        after = after[1:]
+    before = format_float_or_int_string(before)
+    return f"{before}e{sign}{after}"
+
+
+def format_long_or_complex_number(text: str) -> str:
+    """Formats a long or complex string like `10L` or `10j`"""
+    number = text[:-1]
+    suffix = text[-1]
+    # Capitalize in "2L" because "l" looks too similar to "1".
+    if suffix == "l":
+        suffix = "L"
+    return f"{format_float_or_int_string(number)}{suffix}"
+
+
+def format_float_or_int_string(text: str) -> str:
+    """Formats a float string like "1.0"."""
+    if "." not in text:
+        return text
+
+    before, after = text.split(".")
+    return f"{before or 0}.{after or 0}"
+
+
+def normalize_numeric_literal(leaf: Leaf) -> None:
+    """Normalizes numeric (float, int, and complex) literals.
+
+    All letters used in the representation are normalized to lowercase (except
+    in Python 2 long literals).
+    """
+    text = leaf.value.lower()
+    if text.startswith(("0o", "0b")):
+        # Leave octal and binary literals alone.
+        pass
+    elif text.startswith("0x"):
+        text = format_hex(text)
+    elif "e" in text:
+        text = format_scientific_notation(text)
+    elif text.endswith(("j", "l")):
+        text = format_long_or_complex_number(text)
+    else:
+        text = format_float_or_int_string(text)
+    leaf.value = text