Markdown (Nushell).sublime-syntax

%YAML 1.2
---
# Markdown, plus ```nu / ```nushell fenced-code highlighting.
#
# The stock Markdown syntax embeds a hardcoded list of languages and has no
# entry for Nushell. This extends it and prepends a `nu` rule to the
# `fenced-syntaxes` dispatch, so nu fences embed the Nushell grammar and
# everything else behaves exactly like stock Markdown.
#
# Requires the "Nushell" package (provides scope source.shell.nu).
#
# One-time activation: open any .md file, then
#   View -> Syntax -> Open all with current extension as... -> Markdown (Nushell)

name: Markdown (Nushell)
scope: text.html.markdown
version: 2

extends: Packages/Markdown/Markdown.sublime-syntax

file_extensions:
  - md
  - mdown
  - mdwn
  - markdown

contexts:
  fenced-syntaxes:
    - meta_prepend: true
    - include: fenced-nushell

  fenced-nushell:
    - match: |-
        (?x)
        {{fenced_code_block_start}}
        (?i:\s*(nu|nushell))
        {{fenced_code_block_trailing_infostring_characters}}
      captures:
        0: meta.code-fence.definition.begin.markdown-gfm
        2: punctuation.definition.raw.code-fence.begin.markdown
        5: constant.other.language-name.markdown
        6: comment.line.infostring.markdown
        7: meta.fold.code-fence.begin.markdown
      embed: scope:source.shell.nu
      embed_scope: meta.code-fence.body.markdown-gfm markup.raw.code-fence.nu.markdown-gfm source.shell.nu
      escape: '{{fenced_code_block_escape}}'
      escape_captures:
        0: meta.code-fence.definition.end.markdown-gfm
        1: punctuation.definition.raw.code-fence.end.markdown
        2: meta.fold.code-fence.end.markdown