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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_pattern_context(pattern, index):
 """Get the pattern context."""


    last = 0
    current_line = 1
    col = 1
    text = []
    line = 1

    # Split pattern by newline and handle the text before the newline
    for m in RE_PATTERN_LINE_SPLIT.finditer(pattern):
        linetext = pattern[last:m.start(0)]
        if not len(m.group(0)) and not len(text):
            indent = ''
            offset = -1
            col = index - last + 1
        elif last <= index < m.end(0):
            indent = '--> '
            offset = (-1 if index > m.start(0) else 0) + 3
            col = index - last + 1
        else:
            indent = '    '
            offset = None
        if len(text):
            # Regardless of whether we are presented with `\r\n`, `\r`, or `\n`,
            # we will render the output with just `\n`. We will still log the column
            # correctly though.
            text.append('\n')
        text.append('{}{}'.format(indent, linetext))
        if offset is not None:
            text.append('\n')
            text.append(' ' * (col + offset) + '^')
            line = current_line

        current_line += 1
        last = m.end(0)

    return ''.join(text), line, col