Add Teal support

CHANGELOG.rst

@@ -18,6 +18,7 @@ Added
 - Public API function `is_enabled`
 - Rasi support
 - Svelte support
+- Teal support
 - Typst support
 - XML support
 - Missing patterns for Java:

queries/teal/rainbow-delimiters.scm

@@ -0,0 +1,19 @@
+(arguments
+  "(" @delimiter
+  ")" @delimiter @sentinel) @container
+
+(table_constructor
+  "{" @delimiter
+  "}" @delimiter @sentinel) @container
+
+(table_entry
+  "[" @delimiter
+  "]" @delimiter @sentinel) @container
+
+(index
+  "[" @delimiter
+  "]" @delimiter @sentinel) @container
+
+(field
+  "[" @delimiter
+  "]" @delimiter @sentinel) @container

test/highlight/teal/regular.tl

@@ -0,0 +1,62 @@
+-- This is a comment
+
+local function add(x: integer, y: integer): integer
+	if y == 0 then
+		return x
+	end
+	return add((x + (1)), (y - (1)))
+end
+
+if true then
+	print 'True condition'
+elseif false then
+	print 'Alternative condition'
+elseif false then
+	print 'Alternative condition'
+else
+	print 'Alternative'
+end
+
+while false do
+	print 'A while-loop'
+end
+
+repeat
+	print 'This will repeat only once'
+until true
+
+do
+	print 'A block'
+end
+
+for i, v in ipairs({'a', 'b', 'c'}) do
+	print(string.format("%d = %s", i, v))
+end
+
+for i = 1, 5, 1 do
+	print(string.format("Number %d", i))
+end
+
+print(f1('a', 'b'))
+print((((('Hello, world!')))))
+
+print {
+	{
+		{
+			'Hello, world!'
+		}
+	}
+}
+
+local one = {1}
+
+print(one[one[one[1]]])
+
+-- Embedded Vim script
+vim.cmd [[
+	echo a(b(c(d(e(f())))))
+]]
+
+local tbl = {
+	["highlight me"] = {}
+}