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편집 파일: actions.cpython-38.pyc
U ʗRe � @ sp d dl mZ d dlmZ G dd� d�Zdd� Zdd� Zd d � Zd d � Ze � e_ ddd�Z eZ eZ eZe ZeZdS )� )�ParseException)�colc @ s( e Zd ZdZdd� Zdd� Zdd� ZdS ) �OnlyOncezI Wrapper for parse actions, to ensure they are only called once. c C s ddl m} ||�| _d| _d S )Nr )� _trim_arityF)�corer �callable�called)�self� method_callr � r ��/builddir/build/BUILDROOT/alt-python38-pip-22.2.1-2.el8.x86_64/opt/alt/python38/lib/python3.8/site-packages/pip/_vendor/pyparsing/actions.py�__init__ s zOnlyOnce.__init__c C s. | j s | �|||�}d| _ |S t||d��d S )NTz.OnlyOnce obj called multiple times w/out reset)r r r )r �s�l�t�resultsr r r �__call__ s zOnlyOnce.__call__c C s d| _ dS )zK Allow the associated parse action to be called once more. FN)r )r r r r �reset s zOnlyOnce.resetN)�__name__� __module__� __qualname__�__doc__r r r r r r r r s r c s � fdd�}|S )zt Helper method for defining parse actions that require matching at a specific column in the input text. c s$ t || �� kr t| |d�� ���d S )Nz matched token not at column {})r r �format)�strg�locn�toks��nr r � verify_col' s z%match_only_at_col.<locals>.verify_colr )r r r r r �match_only_at_col! s r c s � fdd�S )a� Helper method for common parse actions that simply return a literal value. Especially useful when used with :class:`transform_string<ParserElement.transform_string>` (). Example:: num = Word(nums).set_parse_action(lambda toks: int(toks[0])) na = one_of("N/A NA").set_parse_action(replace_with(math.nan)) term = na | num term[1, ...].parse_string("324 234 N/A 234") # -> [324, 234, nan, 234] c s � gS )Nr �r r r ��repl_strr r �<lambda>< � z replace_with.<locals>.<lambda>r r! r r! r � replace_with. s r% c C s |d dd� S )a# Helper parse action for removing quotation marks from parsed quoted strings. Example:: # by default, quotation marks are included in parsed results quoted_string.parse_string("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"] # use remove_quotes to strip quotation marks from parsed results quoted_string.set_parse_action(remove_quotes) quoted_string.parse_string("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"] � r ���r r r r r � remove_quotes? s r( c s8 | r| dd� � n|� � � dd� � D �� � fdd�}|S )aK Helper to create a validating parse action to be used with start tags created with :class:`make_xml_tags` or :class:`make_html_tags`. Use ``with_attribute`` to qualify a starting tag with a required attribute value, to avoid false matches on common tags such as ``<TD>`` or ``<DIV>``. Call ``with_attribute`` with a series of attribute names and values. Specify the list of filter attributes names and values as: - keyword arguments, as in ``(align="right")``, or - as an explicit dict with ``**`` operator, when an attribute name is also a Python reserved word, as in ``**{"class":"Customer", "align":"right"}`` - a list of name-value tuples, as in ``(("ns1:class", "Customer"), ("ns2:align", "right"))`` For attribute names with a namespace prefix, you must use the second form. Attribute names are matched insensitive to upper/lower case. If just testing for ``class`` (with or without a namespace), use :class:`with_class`. To verify that the attribute exists, but without specifying a value, pass ``with_attribute.ANY_VALUE`` as the value. Example:: html = ''' <div> Some text <div type="grid">1 4 0 1 0</div> <div type="graph">1,3 2,3 1,1</div> <div>this has no type</div> </div> ''' div,div_end = make_html_tags("div") # only match div tag having a type attribute with value "grid" div_grid = div().set_parse_action(with_attribute(type="grid")) grid_expr = div_grid + SkipTo(div | div_end)("body") for grid_header in grid_expr.search_string(html): print(grid_header.body) # construct a match with any div tag having a type attribute, regardless of the value div_any_type = div().set_parse_action(with_attribute(type=with_attribute.ANY_VALUE)) div_expr = div_any_type + SkipTo(div | div_end)("body") for div_header in div_expr.search_string(html): print(div_header.body) prints:: 1 4 0 1 0 1 4 0 1 0 1,3 2,3 1,1 Nc S s g | ]\}}||f�qS r r )�.0�k�vr r r � <listcomp>� s z"with_attribute.<locals>.<listcomp>c sZ � D ]P\}}||kr$t | |d| ��|tjkr|| |krt | |d�||| |���qd S )Nzno matching attribute z+attribute {!r} has value {!r}, must be {!r})r �with_attribute� ANY_VALUEr )r r �tokens�attrName� attrValue��attrsr r �pa� s ��zwith_attribute.<locals>.pa)�items)�args� attr_dictr4 r r2 r r- P s 9 r- � c C s |rd� |�nd}tf || i�S )a� Simplified version of :class:`with_attribute` when matching on a div class - made difficult because ``class`` is a reserved word in Python. Example:: html = ''' <div> Some text <div class="grid">1 4 0 1 0</div> <div class="graph">1,3 2,3 1,1</div> <div>this <div> has no class</div> </div> ''' div,div_end = make_html_tags("div") div_grid = div().set_parse_action(with_class("grid")) grid_expr = div_grid + SkipTo(div | div_end)("body") for grid_header in grid_expr.search_string(html): print(grid_header.body) div_any_type = div().set_parse_action(with_class(withAttribute.ANY_VALUE)) div_expr = div_any_type + SkipTo(div | div_end)("body") for div_header in div_expr.search_string(html): print(div_header.body) prints:: 1 4 0 1 0 1 4 0 1 0 1,3 2,3 1,1 z{}:class�class)r r- )� classname� namespace� classattrr r r � with_class� s $r= N)r8 )� exceptionsr �utilr r r r% r( r- �objectr. r= � replaceWith� removeQuotes� withAttribute� withClass�matchOnlyAtColr r r r �<module> s O )