A Sublime Text 4 package for the Python-powered shell xonsh
extending the default Python package with xonsh-specific contexts
Introduction
This package adds support for the xonsh
language (for files with .xsh
and .xonshrc
extensions) by extending the syntax definitions from the default Python package with the following xonsh-specific contexts:
- Variables:
$variableA
, including the environment ${...}
- Subprocess operators:
$()
$[]
${}
@()
@$()
(and !()
![]
)
- Search functions:
@functionB`search_string`
- Builtin functions:
abbrevs()
aliases()
compilex()
execx()
evalx()
events()
print_color()
exit()
printx()
... and copying all the other relevant elements (Snippets, Comments, Completion Rules, Indentation Rules, Symbol List, and the Default keymap) & re-scoping them to work in the xonsh
syntax
Installation
-
Via Package Control: open Command Palette
→ Package Control: Install Package
→ xonsh
^Ctrl/⌘Cmd⇧ShiftP
-
Manually: clone this repository to your Packages directory and rename it to xonsh
cd /path/to/sublime/packages/directory
git clone https://github.com/eugenesvk/sublime-xonsh.git
mv sublime-xonsh xonsh
Usage
Open any xonsh
file (e.g. syntax_example_screen.xsh) and verify that the selected syntax is Xonsh
and xonsh-specific contexts are properly scoped[^1] and highlighted, maybe like so (depending on your color scheme):
[^1]: scope naming is supposed to conform to that of the default Python package and ST's scope naming guidelines
Examples of supported syntaxes: variables
| Example | Description
| :-------------- | :----------
| `$` | Match a single variable definition symbol to help with completions
| `$varA=[1,2]` | Regular variable
| `$varA[0]` | Variable indexing
| `$varA[$varB]` | Variable inside an index
| `funct($varB)` | Variable inside a function
| `f"{$varA}"` | Variable inside a function string
| `${...}` | The environment itself
Examples of supported syntaxes: subprocess operators
| Example | Description
| :-------------- | :----------
| `@$(which ls)` | Command Substitution
| `@('echo', 1)` | Python Evaluation
| `$(echo 1)` | Captured Subprocess
| `!(echo 1)` | ...
| `$[echo 1]` | Uncaptured Subprocess
| `![echo 1]` | ...
Exposed scopes
List of scope names
| xonsh construct | Scope name
| :------------ | :----------
| Variable | `meta.variable.xonsh`
`variable.other.xonsh` `variable.other.env.xonsh` `variable.other.env.ellipsis.xonsh`
`punctuation.definition.variable.xonsh`
| Command Substitution | `meta.interpolation.command.xonsh` `meta.parens.interpolation.command`
`keyword.operator.subprocess.pyeval.xonsh` `keyword.operator.subprocess.xonsh`
`punctuation.section.parens.` `begin`/`end` `.xonsh`
| Python Evaluation | `meta.interpolation.command.xonsh` `meta.parens.interpolation.command`
`keyword.operator.subprocess.pyeval.xonsh`
`punctuation.section.parens.` `begin`/`end` `.xonsh`
| Captured Subprocess | `meta.interpolation.command.xonsh` `meta.parens.interpolation.command`
`keyword.operator.subprocess.captured.xonsh`
`punctuation.section.parens.` `begin`/`end` `.xonsh`
| Uncaptured Subprocess | `meta.interpolation.command.xonsh` `meta.brackets.interpolation.command`
`keyword.operator.subprocess.uncaptured.xonsh`
`punctuation.section.brackets.` `begin`/`end` `.xonsh`
| Search Function | `meta.function-call.xonsh` `meta.function-call.arguments.xonsh` `meta.string.xonsh`
`string.quoted.backtick.xonsh`
`punctuation.definition.annotation.xonsh` `punctuation.section.string.` `begin`/`end` `.xonsh` `punctuation.section.arguments.` `begin`/`end` `.xonsh`
Keybindings
This plugin adds two keybindings for the xonsh
scope: "
/'
that auto-pair double/single quotes even after string modifiers
Known issues
- Only works in Sublime Text 4 since build 4075 (10 July 2020) since it's using
meta_append
/meta_prepend
APIs
- Illegal Python names that would be legal in a subprocess mode are nonetheless scoped as illegal since there is no differentiation between Python and subprocess modes:
e.g. as
in echo "$HOME" as well as '$HOME'
As a workaround use "
quotes"
or dim/remove error highlighting for source.xonsh invalid.illegal.name
Credits
The default packages' syntax files (Python, Bash, PHP), as well as fish