hocr-dom

hocr-dom

• API
  • HocrDOM
    • HocrDOM.isHocrElement(context, options, cache)
    • HocrDOM.getHocrProperties(context, options, cache)
    • HocrDOM.queryHocr(context, query, options)
    • HocrDOM.queryHocrAll(context, query, options)
    • HocrDOM.extendPrototypes({Element, Document}, options)
      • el.queryHocr(query, options)
      • el.queryHocrAll(query, options)
      • el.isHocrElement
      • el.hocr
  • PropertyParser
    • new HocrPropertyParser(opts)
    • parse(str)

API

HocrDOM

HocrDOM.isHocrElement(context, options, cache)

true if this has an ocr_* class, false otherwise

• @param {Document|Element} context Context element
• @param {Object} options See Options
• @param {Object} cache If provided, will cache the properties in this object with key _hocr

HocrDOM.getHocrProperties(context, options, cache)

List the properties of this hOCR element as an object

• @param {Document|Element} context Context element
• @param {Object} options See Options
• @param {Object} cache If provided, will cache the properties in this object with key _hocr

HocrDOM.queryHocr(context, query, options)

Find the first hOCR element matching query

See queryHocrAll for options

HocrDOM.queryHocrAll(context, query, options)

• @param {Document|Element} context Context element
• @param {String|Object} query Object of query parameters. If a string -> query.class
  • @param {String} query.tag tag names to look for. Default '*'
  • @param {String} query.title title attribute must contain this string
  • @param {String} query.clauses String of clauses for querySelector
  • @param {String|Array} class Elements with this class (if string) or any of these classes (if array)
  • @param {String} query.context context element to query below. Otherwise root element of DOM.
  • @param {String} query.terminal Return only hocr-elements containing no hocr-elements themselves
  • @param {String} query.nonTerminal Opposite of terminal
  • @param {String} query.filter Arbitrary filter to prune resulting element set

HocrDOM.extendPrototypes({Element, Document}, options)

Extend the prototypes of Element and Document with hOCR-specific methods and properties.

el.queryHocr(query, options)

Same as HocrDOM.queryHocr but with context set to el

el.queryHocrAll(query, options)

Same as HocrDOM.queryHocrAll but with context set to el

el.isHocrElement

Property containing whether this is an hOCR element

el.hocr

Property containing the hOCR properties

PropertyParser

new HocrPropertyParser(opts)

• @param {Object} opts All options are false by default
  • @param {Object} opts.debug Whether to log debug output
  • @param {Object} opts.allowUnknown Whether to silently ignore properties not in the spec
  • @param {Object} opts.allowInvalidNumbers Whether to silently ignore invalid number (wrong type e.g.)
  • @param {Object} opts.disableCardinalityChecks Whether to silently ignore invalid argument cardinality

parse(str)

Tokenize and Parse the hOCR properties in a title string