Breaking Changes

• Rename JSONPathEnvironment.filterRegister to JSONPathEnvironment.functionRegister.
• Removed JSONPathEnvironment.options in favour of equivalent environment properties. For example, JSONPathEnvironment.options.maxIntIndex is now JSONPathEnvironment.maxIntIndex.

Fixes

• Fixed well-typedness checks on function calls. Previously we were throwing a JSONPathTypError for some valid queries.
• Fixed parsing of function calls with comparison expressions as arguments.
• Fixed a bug with unbalanced parentheses detection in JSONPath expressions when parsing nested function calls. In some cases we were not throwing a JSONPathSyntaxError when a function was not closed, but an inner function was.

Features

• Implemented Relative JSON Pointers. Use the to(rel) method of JSONPointer, where rel is a relative JSON pointer string and a new JSONPointer is returned.
• Guard against recursive data structures by implementing the JSONPathEnvironment.maxRecursionDepth option. When using the recursive descent selector (..), if the maximum recursion depth is reached, a JSONPathRecursionLimitError is thrown.
• Added JSONPathEnvironment.match() and JSONPath.match(), which returns a JSONPathNode for the first value matching a query, or undefined if there are no matches.

Fixes

• Fix number literals with an implicit exponent sign. Previously we would see a JSONPathSyntaxError for 1e2, but not for 1e+2 or 1e-2. Now 1e2 is equivalent to 1e+2.