Added Literate Haskell tree-sitter grammar and queries

Author: LaurentRDC

languages.toml

@@ -1603,6 +1603,10 @@ block-comment-tokens = { start = "{-", end = "-}" }
 language-servers = [ "haskell-language-server" ]
 indent = { tab-width = 2, unit = "  " }
 
+[[grammar]]
+name = "haskell-literate"
+source = { git = "https://github.com/LaurentRDC/tree-sitter-haskell-literate", rev = "8ad7bd1b1595f4cc1a4ccc775d4a3c460f43a596" }
+
 [[language]]
 name = "purescript"
 scope = "source.purescript"

runtime/queries/haskell-literate/highlights.scm

@@ -0,0 +1,16 @@
+; Bird track marker
+(bird_line ">" @punctuation.special)
+
+; LaTeX delimiters
+(latex_begin) @keyword.directive
+(latex_end) @keyword.directive
+
+; Highlight LaTeX comments like comments
+(latex_comment) @comment
+
+; Markdown delimiters
+(markdown_begin) @keyword.directive
+(markdown_end) @keyword.directive
+
+; Normal prose is not highlighted. Haskell code will be
+; highlighted by the injected Haskell grammar

runtime/queries/haskell-literate/injections.scm

@@ -0,0 +1,14 @@
+; Inject Haskell parser into bird-style code lines
+((bird_line
+  (haskell_code) @injection.content)
+ (#set! injection.language "haskell"))
+
+; Inject Haskell parser into LaTeX code blocks
+((latex_code_line
+  (haskell_code) @injection.content)
+ (#set! injection.language "haskell"))
+
+; Inject Haskell parser into Markdown code blocks
+((markdown_code_line
+  (haskell_code) @injection.content)
+ (#set! injection.language "haskell"))