Module: SnippetCli::YamlLineResolver

Defined in:
lib/snippet_cli/yaml_line_resolver.rb

Overview

Resolves a JSON Pointer (e.g. “/matches/354”) to a 1-based line number in a YAML file by navigating the Psych AST node tree.

Class Method Summary collapse

Class Method Details

.resolve(file, pointer) ⇒ Object

Returns the 1-based line number for the given JSON pointer, or nil if the pointer is empty, invalid, or cannot be resolved in the file.



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# File 'lib/snippet_cli/yaml_line_resolver.rb', line 11

def self.resolve(file, pointer)
  return nil if pointer.to_s.empty?

  segments = pointer.to_s.sub(%r{\A/}, '').split('/')
  return nil if segments.empty?

  tree = Psych.parse_file(file)
  node = navigate(tree.root, segments)
  node&.start_line&.+(1)
rescue StandardError
  nil
end