; Syntax highlighting queries for SiSU Spine markup
; Compatible with tree-sitter highlight capture names from
; https://tree-sitter.github.io/tree-sitter/syntax-highlighting

; =================================================================
; Comments
; =================================================================
(version_comment) @comment.documentation
(header_comment) @comment
(body_comment) @comment

; =================================================================
; Header (document metadata)
; =================================================================
; YAML dialect (sisudoc-spine)
(header_field
  key: (header_key) @keyword)

(header_field
  value: (header_value) @string)

(header_continuation) @string

; Bespoke dialect (original SiSU @key: / :subkey:)
(sisu_header_field
  key: (sisu_header_key) @keyword)

(sisu_header_field
  value: (sisu_header_value) @string)

(sisu_header_continuation) @string

; =================================================================
; Headings
; =================================================================
(part_marker) @keyword.directive
(segment_marker) @keyword.directive

(heading_part
  content: (heading_content) @markup.heading)

(heading_segment
  content: (heading_content) @markup.heading)

(segment_name) @label
(suppress_marker) @punctuation.special

; Heading levels for more specific styling
(heading_part
  marker: (part_marker) @markup.heading.1
  (#match? @markup.heading.1 "^:A~$"))

(heading_part
  marker: (part_marker) @markup.heading.2
  (#match? @markup.heading.2 "^:B~$"))

(heading_part
  marker: (part_marker) @markup.heading.3
  (#match? @markup.heading.3 "^:C~$"))

(heading_part
  marker: (part_marker) @markup.heading.4
  (#match? @markup.heading.4 "^:D~$"))

(heading_segment
  marker: (segment_marker) @markup.heading.5
  (#match? @markup.heading.5 "^1~$"))

(heading_segment
  marker: (segment_marker) @markup.heading.6
  (#match? @markup.heading.6 "^2~$"))

; =================================================================
; Inline formatting
; =================================================================
(emphasis) @markup.italic
(bold) @markup.bold
(italic) @markup.italic
(underline) @markup.underline
(citation_mark) @markup.quote
(superscript) @markup.superscript
(subscript) @markup.subscript
(inserted) @markup.underline
(strikethrough) @markup.strikethrough
(monospace_inline) @markup.raw

; Formatting delimiters
["*{" "}*"] @punctuation.special
["!{" "}!"] @punctuation.special
["/{" "}/"] @punctuation.special
["_{" "}_"] @punctuation.special
["\"{" "}\""] @punctuation.special
["^{" "}^"] @punctuation.special
[",{" "},"] @punctuation.special
["+{" "}+"] @punctuation.special
["-{" "}-"] @punctuation.special
["#{" "}#"] @punctuation.special

; =================================================================
; Footnotes and editor notes
; =================================================================
(footnote) @markup.link
(footnote_marker) @punctuation.special
(editor_note) @markup.link

["~{" "}~"] @punctuation.special
; Editor-note channel selector: ~[* (asterisk set) or ~[+ (plus set).
; A distinct capture lets themes colour the two channels separately
; from the generic footnote delimiters above.
(editor_note_marker) @attribute
["]~"] @punctuation.special

; =================================================================
; Links and images
; =================================================================
(link
  text: (link_text) @markup.link.label)

(link
  target: (url) @markup.link.url)

(link
  target: (anchor_ref) @markup.link.url)

(link
  target: (collection_path) @markup.link.url)

(auto_footnote_marker) @punctuation.special

(image
  spec: (image_spec) @markup.link.label)

(url) @markup.link.url

(inline_anchor) @label
(anchor_name) @label

; =================================================================
; Block elements
; =================================================================
(block_open) @keyword.directive
(block_close) @keyword.directive
(raw_content) @markup.raw

; Code blocks get more specific highlighting
(code_block_curly
  open: (block_open) @keyword.directive)
(code_block_curly
  content: (raw_content) @markup.raw.block)
(code_block_curly
  close: (block_close) @keyword.directive)

(code_block_tic
  open: (block_open) @keyword.directive)
(code_block_tic
  content: (raw_content) @markup.raw.block)
(code_block_tic
  close: (block_close) @keyword.directive)

; =================================================================
; Book index
; =================================================================
(book_index) @markup.list
(index_content) @string

; =================================================================
; Paragraph prefixes
; =================================================================
(paragraph_prefix) @punctuation.special

; =================================================================
; Special markers
; =================================================================
(ocn_suppress) @comment
(ocn_suppress_open) @comment
(ocn_suppress_close) @comment

(page_break) @punctuation.special
(horizontal_rule) @punctuation.special

; =================================================================
; Composite includes
; =================================================================
(composite_include) @keyword.import
(include_path) @string.special.path

; =================================================================
; Pipe table
; =================================================================
(table_spec) @keyword.directive
(table_row) @markup.raw

; =================================================================
; Text
; =================================================================
(text) @spell

; Line break
(line_break) @punctuation.special