support tables for examples in Annex A

import traceback

from docx.text.paragraph import Paragraph

from docx.table import Table

class Example():

    '''

    return txt.startswith("A.")

def is_example_table(tab):

    return len(tab.rows) == 1 and len(tab.rows[0].cells) == 1

def parse_all_examples(txt):

    '''

    Parses TOSCA examples. Txt is a list of Docx items (Paragraph, etc.).

            if is_heading(linetext):

                clause = linetext.split("\t")[0]

                i = 1

        elif isinstance(line, Table):

            if is_example_table(line):

                linetext = str(line.rows[0].cells[0].text)

        elif isinstance(line, str):

            linetext = line

        else: