More grammar improvements (#98)

* Fix comparison operators in JSON Path grammar.

Removed function names from `comp_op` operators rule("in", "nin", "size", "noneOf", "anyOf", "subsetOf") to align with the intended grammar restrictions.

* rustfmt parser.rs

Author: thehiddenwaffle

src/parser.rs

@@ -310,7 +310,9 @@ pub fn literal(rule: Pair<Rule>) -> Parsed<Literal> {
         if num.contains('.') || num.contains('e') || num.contains('E') {
             Ok(Literal::Float(num.parse::<f64>().map_err(|e| (e, num))?))
         } else {
-            Ok(Literal::Int(num.trim().parse::<i64>().map_err(|e| (e, num))?))
+            Ok(Literal::Int(
+                num.trim().parse::<i64>().map_err(|e| (e, num))?,
+            ))
         }
     }
 

src/parser/grammar/json_path_9535.pest

@@ -40,7 +40,7 @@ abs_singular_query = { root ~ singular_query_segments }
 singular_query_segments = { (S ~ (name_segment | index_segment))* }
 name_segment = { ("[" ~ name_selector ~ "]") | ("." ~ member_name_shorthand) }
 index_segment = { "[" ~ index_selector ~ "]" }
-comp_op = { "==" | "!=" | "<=" | ">=" | "<" | ">" | "in" | "nin" | "size" | "noneOf" | "anyOf" | "subsetOf"}
+comp_op = { "==" | "!=" | "<=" | ">=" | "<" | ">" }
 
 LCALPHA = { 'a'..'z' }