]> git.madduck.net Git - etc/vim.git/blobdiff - README.md

madduck's git repository

Every one of the projects in this repository is available at the canonical URL git://git.madduck.net/madduck/pub/<projectpath> — see each project's metadata for the exact URL.

All patches and comments are welcome. Please squash your changes to logical commits before using git-format-patch and git-send-email to patches@git.madduck.net. If you'd read over the Git project's submission guidelines and adhered to them, I'd be especially grateful.

SSH access, as well as push access can be individually arranged.

If you use my repositories frequently, consider adding the following snippet to ~/.gitconfig and using the third clone URL listed for each project:

[url "git://git.madduck.net/madduck/"]
  insteadOf = madduck:

better test for mono executor
[etc/vim.git] / README.md
index 45cd8f6a19fda6768f434ebab8ce7edea74b0cab..3b5e607803c7d484b28c47b91d9cfa7550d11324 100644 (file)
--- a/README.md
+++ b/README.md
@@ -31,11 +31,11 @@ Try it out now using the [Black Playground](https://black.now.sh). Watch the
 ---
 
 _Contents:_ **[Installation and usage](#installation-and-usage)** |
 ---
 
 _Contents:_ **[Installation and usage](#installation-and-usage)** |
-**[Code style](#the-black-code-style)** | **[pyproject.toml](#pyprojecttoml)** |
-**[Editor integration](#editor-integration)** | **[blackd](#blackd)** |
-**[Version control integration](#version-control-integration)** |
-**[Ignoring unmodified files](#ignoring-unmodified-files)** | **[Used by](#used-by)** |
-**[Testimonials](#testimonials)** | **[Show your style](#show-your-style)** |
+**[Code style](#the-black-code-style)** | **[Pragmatism](#pragmatism)** |
+**[pyproject.toml](#pyprojecttoml)** | **[Editor integration](#editor-integration)** |
+**[blackd](#blackd)** | **[Version control integration](#version-control-integration)**
+| **[Ignoring unmodified files](#ignoring-unmodified-files)** | **[Used by](#used-by)**
+**[Testimonials](#testimonials)** | **[Show your style](#show-your-style)** |
 **[Contributing](#contributing-to-black)** | **[Change Log](#change-log)** |
 **[Authors](#authors)**
 
 **[Contributing](#contributing-to-black)** | **[Change Log](#change-log)** |
 **[Authors](#authors)**
 
@@ -489,6 +489,47 @@ file that are not enforced yet but might be in a future version of the formatter
 - for arguments that default to `None`, use `Optional[]` explicitly;
 - use `float` instead of `Union[int, float]`.
 
 - for arguments that default to `None`, use `Optional[]` explicitly;
 - use `float` instead of `Union[int, float]`.
 
+## Pragmatism
+
+Early versions of _Black_ used to be absolutist in some respects. They took after its
+initial author. This was fine at the time as it made the implementation simpler and
+there were not many users anyway. Not many edge cases were reported. As a mature tool,
+_Black_ does make some exceptions to rules it otherwise holds. This section documents
+what those exceptions are and why this is the case.
+
+### The magic trailing comma
+
+_Black_ in general does not take existing formatting into account.
+
+However, there are cases where you put a short collection or function call in your code
+but you anticipate it will grow in the future.
+
+For example:
+
+```py3
+TRANSLATIONS = {
+    "en_us": "English (US)",
+    "pl_pl": "polski",
+}
+```
+
+Early versions of _Black_ used to ruthlessly collapse those into one line (it fits!).
+Now, you can communicate that you don't want that by putting a trailing comma in the
+collection yourself. When you do, _Black_ will know to always explode your collection
+into one item per line.
+
+How do you make it stop? Just delete that trailing comma and _Black_ will collapse your
+collection into one line if it fits.
+
+### r"strings" and R"strings"
+
+_Black_ normalizes string quotes as well as string prefixes, making them lowercase. One
+exception to this rule is r-strings. It turns out that the very popular
+[MagicPython](https://github.com/MagicStack/MagicPython/) syntax highlighter, used by
+default by (among others) GitHub and Visual Studio Code, differentiates between
+r-strings and R-strings. The former are syntax highlighted as regular expressions while
+the latter are treated as true raw strings with no special semantics.
+
 ## pyproject.toml
 
 _Black_ is able to read project-specific default values for its command line options
 ## pyproject.toml
 
 _Black_ is able to read project-specific default values for its command line options
@@ -697,7 +738,7 @@ Configuration:
 To install with [vim-plug](https://github.com/junegunn/vim-plug):
 
 ```
 To install with [vim-plug](https://github.com/junegunn/vim-plug):
 
 ```
-Plug 'psf/black'
+Plug 'psf/black', { 'branch': 'stable' }
 ```
 
 or with [Vundle](https://github.com/VundleVim/Vundle.vim):
 ```
 
 or with [Vundle](https://github.com/VundleVim/Vundle.vim):
@@ -706,8 +747,15 @@ or with [Vundle](https://github.com/VundleVim/Vundle.vim):
 Plugin 'psf/black'
 ```
 
 Plugin 'psf/black'
 ```
 
+and execute the following in a terminal:
+
+```console
+$ cd ~/.vim/bundle/black
+$ git checkout origin/stable -b stable
+```
+
 or you can copy the plugin from
 or you can copy the plugin from
-[plugin/black.vim](https://github.com/psf/black/tree/master/plugin/black.vim).
+[plugin/black.vim](https://github.com/psf/black/blob/stable/plugin/black.vim).
 
 ```
 mkdir -p ~/.vim/pack/python/start/black/plugin
 
 ```
 mkdir -p ~/.vim/pack/python/start/black/plugin
@@ -937,6 +985,8 @@ code style: pytest, tox, Pyramid, Django Channels, Hypothesis, attrs, SQLAlchemy
 Poetry, PyPA applications (Warehouse, Pipenv, virtualenv), pandas, Pillow, every Datadog
 Agent Integration, Home Assistant.
 
 Poetry, PyPA applications (Warehouse, Pipenv, virtualenv), pandas, Pillow, every Datadog
 Agent Integration, Home Assistant.
 
+The following organizations use _Black_: Dropbox.
+
 Are we missing anyone? Let us know.
 
 ## Testimonials
 Are we missing anyone? Let us know.
 
 ## Testimonials
@@ -1015,7 +1065,7 @@ Maintained with [Carol Willing](mailto:carolcode@willingconsulting.com),
 
 Multiple contributions by:
 
 
 Multiple contributions by:
 
-- [Abdur-Rahmaan Janhangeer](mailto:cryptolabour@gmail.com)
+- [Abdur-Rahmaan Janhangeer](mailto:arj.python@gmail.com)
 - [Adam Johnson](mailto:me@adamj.eu)
 - [Alexander Huynh](mailto:github@grande.coffee)
 - [Andrew Thorp](mailto:andrew.thorp.dev@gmail.com)
 - [Adam Johnson](mailto:me@adamj.eu)
 - [Alexander Huynh](mailto:github@grande.coffee)
 - [Andrew Thorp](mailto:andrew.thorp.dev@gmail.com)