Method find

IPython/core/inputtransformer2.py:430–440

Find the first help command (foo?) in the cell.

(cls, tokens_by_line)

    @classmethod
    def find(cls, tokens_by_line):
        """Find the first help command (foo?) in the cell.
        """
        for line in tokens_by_line:
            # Last token is NEWLINE; look at last but one
            if len(line) > 2 and line[-2].string == '?':
                # Find the first token that's not INDENT/DEDENT
                ix = 0
                while line[ix].type in {tokenize.INDENT, tokenize.DEDENT}:
                    ix += 1
                return cls(line[ix].start, line[-2].start)

    def transform(self, lines):
        """Transform a help command found by the ``find()`` classmethod.