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# -*- coding: utf-8 -*- |
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from benedict.utils import type_util |
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6
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def _get_index(key): |
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if type_util.is_integer(key): |
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return key |
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return None |
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def _get_item_key_and_value(item, key): |
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if type_util.is_list(item): |
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index = _get_index(key) |
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if index is not None: |
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return (index, item[index], ) |
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elif type_util.is_dict(item): |
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return (key, item[key], ) |
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raise KeyError |
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def _get_or_new_item_value(item, key, subkey): |
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try: |
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item_key, item_value = _get_item_key_and_value(item, key) |
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if not type_util.is_dict_or_list(item_value): |
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raise TypeError |
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except (IndexError, KeyError, TypeError, ): |
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item_value = _new_item_value(subkey) |
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item[key] = item_value |
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return item_value |
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def _new_item_value(key): |
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index = _get_index(key) |
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return {} if index is None else [] |
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def _set_item_value(item, key, value): |
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index = _get_index(key) |
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if index is not None: |
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try: |
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# overwrite existing index |
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item[index] = value |
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except IndexError: |
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# insert index |
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item += ([None] * (index - len(item))) |
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item.insert(index, value) |
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else: |
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item[key] = value |
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def get_item(d, keys): |
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items = get_items(d, keys) |
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return items[-1] if items else (None, None, None, ) |
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def get_items(d, keys): |
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items = [] |
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item = d |
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value = None |
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for key in keys: |
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try: |
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item_key, item_value = _get_item_key_and_value(item, key) |
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items.append((item, item_key, item_value, )) |
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item = item_value |
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except (IndexError, KeyError, ): |
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items.append((None, None, None, )) |
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break |
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return items |
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def set_item(d, keys, value): |
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item = d |
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i = 0 |
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j = len(keys) |
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while i < j: |
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key = keys[i] |
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if i < (j - 1): |
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item = _get_or_new_item_value(item, key, keys[i + 1]) |
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i += 1 |
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continue |
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_set_item_value(item, key, value) |
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break |
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fabiocaccamo /
python-benedict
