Module jsonpath 

JSONPath query engine for extracting specific data. JSONPath query support for HEDL documents

This module provides JSONPath query functionality for HEDL documents, allowing efficient extraction of specific data using standard JSONPath syntax.

Features

• Standard JSONPath Syntax: Full support for JSONPath expressions
• Efficient Queries: Optimized query execution with minimal allocations
• Type-Safe Results: Returns strongly-typed query results
• Error Handling: Comprehensive error reporting for invalid queries

Examples

use hedl_json::jsonpath::{query, QueryConfig};
use hedl_core::Document;

fn example() -> Result<(), Box<dyn std::error::Error>> {
    let doc = hedl_core::parse("name: \"Alice\"\nage: 30".as_bytes())?;
    let config = QueryConfig::default();

    // Simple field access
    let results = query(&doc, "$.name", &config)?;
    assert_eq!(results.len(), 1);

    // Array filtering
    let results = query(&doc, "$.users[?(@.age > 25)]", &config)?;
    Ok(())
}

Structs

QueryConfig

Configuration for JSONPath queries

QueryConfigBuilder

Builder for constructing QueryConfig instances

Enums

QueryError

Errors that can occur during JSONPath queries

Functions

query

Query a HEDL document using JSONPath expression

query_count

Count the number of matches for a JSONPath query

query_exists

Check if a JSONPath query matches any elements in a HEDL document

query_first

Query a HEDL document and return the first match

query_single

Query a HEDL document and return a single expected match

Type Aliases

QueryResult

Result type for JSONPath queries