Module jsonpath 

JSONPath evaluation — RFC 9535 via serde_json_path

Replaces the minimal custom util/jsonpath.rs with RFC 9535 compliance.

Supports:

• Dot notation: $.a.b.c
• Array index: $.a[0].b
• Wildcards: $[*], $.items[*].name
• Filters: $.items[?@.price > 100]
• Recursive descent: $..email
• Slices: $.items[0:5]

Usage

use nika::binding::jsonpath;

let value = json!({"items": [{"name": "a"}, {"name": "b"}]});

// Simple path (fast, no RFC parse overhead)
let result = jsonpath::resolve(&value, "items[0].name")?;
assert_eq!(result, Some(json!("a")));

// Rich JSONPath query (RFC 9535)
let result = jsonpath::query(&value, "$.items[*].name")?;
assert_eq!(result, json!(["a", "b"]));

Enums

Segment

A parsed path segment (field or array index)

Functions

apply

Apply parsed segments to a JSON value.

is_jsonpath

Check if a path uses rich JSONPath features (wildcards, filters, slices, recursive descent).

parse

Parse a simple JSONPath string into segments.

query

Evaluate a RFC 9535 JSONPath expression against a JSON value.

resolve

Parse and apply a simple path in one step.

try_parse_json_str

Try to parse a JSON string Value into a structured Value.

validate

Validate simple JSONPath syntax without evaluating.