feat: Add Latex basic highlights and folds

Fix #1104

lockfile.json

@@ -81,7 +81,7 @@
     "revision": "48bfb38abd93f8d617877d7bb7f92a6bb1166285"
   },
   "latex": {
-    "revision": "e87bc36487bba70f492cf5810f44a5484f883c32"
+    "revision": "ea43db6830632fd3531b9cbc34a93502b0d4339a"
   },
   "ledger": {
     "revision": "609d5e5ab5955823b3faeaec8d2afc91860c639a"

queries/latex/folds.scm

@@ -0,0 +1,10 @@
+[
+  (chapter)
+  (section)
+  (subsection)
+  (subsubsection)
+  (paragraph)
+  (subparagraph)
+
+  (environment)
+] @fold

queries/latex/highlights.scm

@@ -0,0 +1,110 @@
+[
+  (generic_command_name)
+  "\\begin"
+  "\\end"
+  "\\newcommand"
+  "\\renewcommand"
+  "\\DeclareRobustCommand"
+] @function.macro
+
+(comment) @comment
+
+(bracket_group) @parameter
+
+[(math_operator) "="] @operator
+
+[
+  "\\usepackage"
+  "\\documentclass"
+  "\\input"
+  "\\subfile"
+  "\\subfileinclude"
+  "\\subfileinclude"
+  "\\includegraphics"
+  "\\addbibresource"
+  "\\bibliography"
+  "\\includesvg"
+  "\\includeinkscape"
+  "\\usepgflibrary"
+  "\\usetikzlibrary"
+] @include
+
+[
+  "\\chapter"
+  "\\section"
+  "\\subsection"
+  "\\subsubsection"
+  "\\paragraph"
+  "\\subparagraph"
+] @type
+
+[
+  (label_definition)
+  (label_reference)
+  (equation_label_reference)
+  (label_number)
+] @label
+
+(key_val_pair
+  key: (_) @parameter
+  value: (_))
+
+["(" ")" "[" "]" "{" "}"] @punctuation.bracket
+
+(chapter
+  text: (brace_group) @text.title)
+
+(section
+  text: (brace_group) @text.title)
+
+(subsection
+  text: (brace_group) @text.title)
+
+(subsubsection
+  text: (brace_group) @text.title)
+
+(paragraph
+  text: (brace_group) @text.title)
+
+(subparagraph
+  text: (brace_group) @text.title)
+
+((environment
+  (begin
+   name: (word) @_frame)
+   (brace_group
+        child: (text) @text.title))
+ (#eq? @_frame "frame"))
+
+((generic_command
+  name:(generic_command_name) @_name
+  arg: (brace_group
+          (text) @text.title))
+ (#eq? @_name "\\frametitle"))
+
+;; Formatting
+
+((generic_command
+  name:(generic_command_name) @_name
+  arg: (_) @text.emphasis)
+ (#eq? @_name "\\emph"))
+
+((generic_command
+  name:(generic_command_name) @_name
+  arg: (_) @text.emphasis)
+ (#match? @_name "^(\\textit|\\mathit)$"))
+
+((generic_command
+  name:(generic_command_name) @_name
+  arg: (_) @text.strong)
+ (#match? @_name "^(\\textbf|\\mathbf)$"))
+
+(ERROR) @error
+
+;; Controversial
+; Add @text.bullet?
+"\\item" @punctuation.special
+
+;; Math (TODO)
+;(displayed_equation)
+;(inline_formula)