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inject language based on file extension & shebang (#3970)

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* inject language based on file extension

Nodes can now be captured with "injection.filename". If this capture
contains a valid file extension known to Helix, then the content will
be highlighted as that language.

* inject language by shebang

Nodes can now be captured with "injection.shebang". If this capture
contains a valid shebang line known to Helix, then the content will
be highlighted as the language the shebang calls for.

* add documentation for language injection

* nix: fix highlights

The `@` is now highlighted properly on either side of the function arg.

Also, extending the phases with `buildPhase = prev.buildPhase + ''''`
is now highlighted properly.

Fix highlighting of `''$` style escapes (requires tree-sitter-nix bump)

Fix `inherit` highlighting.

* simplify injection_for_match

Split out injection pair logic into its own method to make the overall
flow easier to follow.

Also transform the top-level function into a method on a
HighlightConfiguration.

* markdown: add shebang injection query
This commit is contained in:
Timothy DeHerrera 2023-04-28 03:21:34 -06:00 • committed by GitHub
parent 204d1eba4b
commit 9c6c63a2be
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 216 additions and 84 deletions
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18
runtime/queries/nix/injections.scm
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@ -10,9 +10,11 @@
; such as those of stdenv.mkDerivation.
((binding
attrpath: (attrpath (identifier) @_path)
expression: (indented_string_expression
(string_fragment) @injection.content))
(#match? @_path "(^\\w*Phase|(pre|post)\\w*|(.*\\.)?\\w*([sS]cript|[hH]ook)|(.*\\.)?startup)$")
expression: [
(indented_string_expression (string_fragment) @injection.content)
(binary_expression (indented_string_expression (string_fragment) @injection.content))
])
(#match? @_path "(^\\w*Phase|command|(pre|post)\\w*|(.*\\.)?\\w*([sS]cript|[hH]ook)|(.*\\.)?startup)$")
(#set! injection.language "bash")
(#set! injection.combined))
@ -150,3 +152,13 @@
; (#match? @_func "(^|\\.)writeFSharp(Bin)?$")
; (#set! injection.language "f-sharp")
; (#set! injection.combined))
((apply_expression
function: (apply_expression function: (_) @_func
argument: (string_expression (string_fragment) @injection.filename))
argument: (indented_string_expression (string_fragment) @injection.content))
(#match? @_func "(^|\\.)write(Text|Script(Bin)?)$")
(#set! injection.combined))
((indented_string_expression (string_fragment) @injection.shebang @injection.content)
(#set! injection.combined))