Function strip_email_quotes

IPython/utils/text.py:379–426

Strip leading email quotation characters ('>'). Removes any combination of leading '>' interspersed with whitespace that appears *identically* in all lines of the input text. Parameters ---------- text : str Examples -------- Simple uses:: In [2]: strip_e

(text: str)

def strip_email_quotes(text: str) -> str:
    """Strip leading email quotation characters ('>').

    Removes any combination of leading '>' interspersed with whitespace that
    appears *identically* in all lines of the input text.

    Parameters
    ----------
    text : str

    Examples
    --------

    Simple uses::

        In [2]: strip_email_quotes('> > text')
        Out[2]: 'text'

        In [3]: strip_email_quotes('> > text\\n> > more')
        Out[3]: 'text\\nmore'

    Note how only the common prefix that appears in all lines is stripped::

        In [4]: strip_email_quotes('> > text\\n> > more\\n> more...')
        Out[4]: '> text\\n> more\\nmore...'

    So if any line has no quote marks ('>'), then none are stripped from any
    of them ::

        In [5]: strip_email_quotes('> > text\\n> > more\\nlast different')
        Out[5]: '> > text\\n> > more\\nlast different'
    """
    lines = text.splitlines()
    strip_len = 0

    for characters in zip(*lines):
        # Check if all characters in this position are the same
        if len(set(characters)) > 1:
            break
        prefix_char = characters[0]

        if prefix_char in string.whitespace or prefix_char == ">":
            strip_len += 1
        else:
            break

    text = "\n".join([ln[strip_len:] for ln in lines])
    return text


class EvalFormatter(Formatter):