[YAPF](https://github.com/google/yapf)'s block comments to the same effect, as a
courtesy for straddling code.
+The rest of this document describes the current formatting style. If you're interested
+in trying out where the style is heading, see [future style](./future_style.md) and try
+running `black --preview`.
+
### How _Black_ wraps lines
_Black_ ignores previous formatting and applies uniform horizontal and vertical
will replace the latter with the former as long as it does not result in more backslash
escapes than before.
-_Black_ also standardizes string prefixes, making them always lowercase. On top of that,
-if your code is already Python 3.6+ only or it's using the `unicode_literals` future
-import, _Black_ will remove `u` from the string prefix as it is meaningless in those
-scenarios.
+_Black_ also standardizes string prefixes. Prefix characters are made lowercase with the
+exception of [capital "R" prefixes](#rstrings-and-rstrings), unicode literal markers
+(`u`) are removed because they are meaningless in Python 3, and in the case of multiple
+characters "r" is put first as in spoken language: "raw f-string".
The main reason to standardize on a single form of quotes is aesthetics. Having one kind
of quotes everywhere reduces reader distraction. It will also enable a future version of
you can pass `--skip-string-normalization` on the command line. This is meant as an
adoption helper, avoid using this for new projects.
-(labels/experimental-string)=
-
-As an experimental option (can be enabled by `--experimental-string-processing`),
-_Black_ splits long strings (using parentheses where appropriate) and merges short ones.
-When split, parts of f-strings that don't need formatting are converted to plain
-strings. User-made splits are respected when they do not exceed the line length limit.
-Line continuation backslashes are converted into parenthesized strings. Unnecessary
-parentheses are stripped. Because the functionality is experimental, feedback and issue
-reports are highly encouraged!
-
_Black_ also processes docstrings. Firstly the indentation of docstrings is corrected
for both quotations and the text within, although relative indentation in the text is
preserved. Superfluous trailing whitespace on each line and unnecessary new lines at the
_Black_ standardizes most numeric literals to use lowercase letters for the syntactic
parts and uppercase letters for the digits themselves: `0xAB` instead of `0XAB` and
-`1e10` instead of `1E10`. Python 2 long literals are styled as `2L` instead of `2l` to
-avoid confusion between `l` and `1`.
+`1e10` instead of `1E10`.
### Line breaks & binary operators
projects / etc / vim.git / blobdiff