Helper to create a validating parse action to be used with start tags created with :class:`makeXMLTags` or :class:`makeHTMLTags`. Use ``withAt

Implementation of + operator - returns :class:`And`. Adding strings to a ParserElement converts them to :class:`Literal`s by default.

Implementation of & operator - returns :class:`Each`

Shortcut for :class:`setResultsName`, with ``listAllMatches=False``. If ``name`` is given with a trailing ``'*'`` character, then ``

supported attributes by name are: - lineno - returns the line number of the exception text - col - returns the column number of

use ``[]`` indexing notation as a short form for expression repetition: - ``expr[n]`` is equivalent to ``expr*n`` - ``expr[

The parameters ``pattern`` and ``flags`` are passed to the ``re.compile()`` function as-is. See the Python `re module <https://docs.py