feat: add prql (#4393)

* feat: add prql

* highlights(prql): null as constant.builtin

* highlights(prql): add missing kwd, update queries

* highlights(prql): remove redundant queries

* highlights(prql): make `->` a delimiter

* highlights(prql): instructions to `@method.call`

queries/prql/highlights.scm

@@ -0,0 +1,141 @@
+[
+  (keyword_from)
+  (keyword_filter)
+  (keyword_derive)
+  (keyword_group)
+  (keyword_aggregate)
+  (keyword_sort)
+  (keyword_take)
+  (keyword_window)
+  (keyword_join)
+  (keyword_select)
+  (keyword_switch)
+  (keyword_append)
+  (keyword_remove)
+  (keyword_intersect)
+  (keyword_rolling)
+  (keyword_rows)
+  (keyword_expanding)
+  (keyword_let)
+  (keyword_prql)
+  (keyword_from_text)
+] @keyword
+
+[
+ (literal)
+ (f_string)
+ (s_string)
+] @string
+
+(assignment
+  alias: (field) @field)
+
+alias: (identifier) @field
+
+
+
+(comment) @comment @spell
+
+(keyword_func) @keyword.function
+
+(function_call
+  (identifier) @function.call)
+
+[
+  "+"
+  "-"
+  "*"
+  "/"
+  "="
+  "=="
+  "<"
+  "<="
+  "!="
+  ">="
+  ">"
+  (bang)
+] @operator
+
+[
+  "("
+  ")"
+  "["
+  "]"
+] @punctuation.bracket
+
+[
+  ","
+  "."
+  (pipe)
+  "->"
+] @punctuation.delimiter
+
+(integer) @number
+
+(decimal_number) @float
+
+[
+  (keyword_min)
+  (keyword_max)
+  (keyword_count)
+  (keyword_count_distinct)
+  (keyword_average)
+  (keyword_avg)
+  (keyword_sum)
+  (keyword_stddev)
+  (keyword_count)
+] @function
+
+[
+ (keyword_side)
+ (keyword_format)
+] @attribute
+
+[
+ (keyword_version)
+ (keyword_target)
+] @type.qualifier
+
+(target) @function.builtin
+
+ [
+  (date)
+  (time)
+  (timestamp)
+] @string.special
+
+[
+  (keyword_left)
+  (keyword_inner)
+  (keyword_right)
+  (keyword_full)
+  (keyword_csv)
+  (keyword_json)
+] @method.call
+
+[
+  (keyword_true)
+  (keyword_false)
+] @boolean
+
+[
+ (keyword_and)
+ (keyword_or)
+ (keyword_in)
+] @keyword.operator
+
+(function_definition
+  (keyword_func)
+  name: (identifier) @function)
+
+(parameter
+  (identifier) @parameter)
+
+(variable
+  (keyword_let)
+  name: (identifier) @constant)
+
+
+ (keyword_null) @constant.builtin
+
+

queries/prql/injections.scm

@@ -0,0 +1,13 @@
+(
+ (s_string) @sql
+ (#offset! @sql 0 2 0 -1)
+)
+
+(from_text
+  (keyword_from_text)
+  (keyword_json)
+  (literal) @json
+  (#offset! @json 0 3 0 -3)
+)
+
+(comment) @comment