U :gJ@sddlmZddlmZmZmZmZddlmZd*ddZ dd Z d+d d Z d,d d Z ddZ d-ddZddZddZd.ddZd/ddZd0ddZd1ddZd2dd Zd!d"Zd#d$Zd%d&Zd3d(d)Zd'S)4)chain)AtRule Declaration ParseError QualifiedRule)parse_component_value_listFcCst|trt||}t|S)aqIterate component values out of string or component values iterable. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: If the input is a string, ignore all CSS comments. :returns: An iterator yielding :term:`component values`. ) isinstancestrriter)input skip_commentsr3/tmp/pip-unpacked-wheel-62y3g4yj/tinycss2/parser.py_to_token_iterators  rcCs |D]}|jdkr|SqdS)zReturn the next significant (neither whitespace or comment) token. :type tokens: :term:`iterator` :param tokens: An iterator yielding :term:`component values`. :returns: A :term:`component value`, or :obj:`None`.  whitespacecommentN)type)tokenstokenrrr_next_significants rcCsRt||}t|}t|}|dkr0tddddS|dk rJt|j|jddS|SdS)aParse a single :diagram:`component value`. This is used e.g. for an attribute value referred to by ``attr(foo length)``. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: If the input is a string, ignore all CSS comments. :returns: A :term:`component value` (that is neither whitespace or comment), or a :class:`~tinycss2.ast.ParseError`. NremptyInput is empty extra-inputzGot more than one token)rrr source_line source_column)r r rfirstsecondrrrparse_one_component_value#s rcCs2t||}t|}|dkr(tddddSt||S)a?Parse a single :diagram:`declaration`. This is used e.g. for a declaration in an `@supports `_ test. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: If the input is a string, ignore all CSS comments. :returns: A :class:`~tinycss2.ast.Declaration` or :class:`~tinycss2.ast.ParseError`. Any whitespace or comment before the ``:`` colon is dropped. Nrrr)rrr_parse_declaration)r r r first_tokenrrrparse_one_declaration?s  r"cCs.|D]$}|dkrdS|r|dkrdSqdS)N;}r)r nestedrrrr_consume_remnantsWs  r&Tc Csn|}|jdkr4t||t|j|jdd|jdSt|}|dkr`t||t|j|jddS|dkrt||t|j|jddSg}d }d }d }t|D]\} } |d kr| d krd }| } nT|d kr| jdkr| jd krd }n2| jdkrd }| jdkr|rd}nd}nd}|| q|d kr2|| d=|rP|rPt|j|jddSt |j|j|j |j||d kS)aParse a declaration. Consume :obj:`tokens` until the end of the declaration or the first error. :type first_token: :term:`component value` :param first_token: The first component value of the rule. :type tokens: :term:`iterator` :param tokens: An iterator yielding :term:`component values`. :type nested: :obj:`bool` :param nested: Whether the declaration is nested or top-level. :returns: A :class:`~tinycss2.ast.Declaration` or :class:`~tinycss2.ast.ParseError`. identinvalidz+Expected for declaration name, got .Nz,Expected ':' after declaration name, got EOF:z6Expected ':' after declaration name, got {colon.type}.valueF!ZbangZ importantr{} blockTzDeclaration contains {} block) rr&rrrr enumerate lower_valueappendrr+) r!rr%namecolonr+stateZcontains_non_whitespaceZcontains_simple_blockirZ bang_positionrrrr _s~           r cCsg}g}|dkrR|jdkrR|D]2}|dkr8||qR|||jdkrqRqt|t|dd}|jdkrr|St|||}t||dddSdS)z#Consume declaration or nested rule.r#r-T)r% declaration) stop_tokenr%N)rr0r r r_consume_qualified_rule)r!rZdeclaration_tokensZsemicolon_tokenrr5rrr_consume_blocks_contents&     r8cCs2g}|D]}|dkrq$||qt|t|S)zLike :func:`_parse_declaration`, but stop at the first ``;``. Deprecated, use :func:`_consume_blocks_content` instead. r#)r0r r )r!rZother_declaration_tokensrrrr_consume_declaration_in_lists  r9cCst||}g}|D]l}|jdkr0|s~||q|jdkrJ|s~||q|jdkrf|t||q|dkr|t||q|S)uParse a block’s contents. This is used e.g. for the :attr:`~tinycss2.ast.QualifiedRule.content` of a style rule or ``@page`` rule, or for the ``style`` attribute of an HTML element. In contexts that don’t expect any at-rule and/or qualified rule, all :class:`~tinycss2.ast.AtRule` and/or :class:`~tinycss2.ast.QualifiedRule` objects should simply be rejected as invalid. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: Ignore CSS comments at the top-level of the list. If the input is a string, ignore all comments. :type skip_whitespace: :obj:`bool` :param skip_whitespace: Ignore whitespace at the top-level of the list. Whitespace is still preserved in the :attr:`~tinycss2.ast.Declaration.value` of declarations and the :attr:`~tinycss2.ast.AtRule.prelude` and :attr:`~tinycss2.ast.AtRule.content` of at-rules. :returns: A list of :class:`~tinycss2.ast.Declaration`, :class:`~tinycss2.ast.AtRule`, :class:`~tinycss2.ast.QualifiedRule`, :class:`~tinycss2.ast.Comment` (if ``skip_comments`` is false), :class:`~tinycss2.ast.WhitespaceToken` (if ``skip_whitespace`` is false), and :class:`~tinycss2.ast.ParseError` objects rr at-keywordr#)rrr0_consume_at_ruler8r r Zskip_whitespacerresultrrrrparse_blocks_contentss$      r>cCst||}g}|D]l}|jdkr0|s~||q|jdkrJ|s~||q|jdkrf|t||q|dkr|t||q|S)uParse a :diagram:`declaration list` (which may also contain at-rules). Deprecated and removed from CSS Syntax Level 3. Use :func:`parse_blocks_contents` instead. This is used e.g. for the :attr:`~tinycss2.ast.QualifiedRule.content` of a style rule or ``@page`` rule, or for the ``style`` attribute of an HTML element. In contexts that don’t expect any at-rule, all :class:`~tinycss2.ast.AtRule` objects should simply be rejected as invalid. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: Ignore CSS comments at the top-level of the list. If the input is a string, ignore all comments. :type skip_whitespace: :obj:`bool` :param skip_whitespace: Ignore whitespace at the top-level of the list. Whitespace is still preserved in the :attr:`~tinycss2.ast.Declaration.value` of declarations and the :attr:`~tinycss2.ast.AtRule.prelude` and :attr:`~tinycss2.ast.AtRule.content` of at-rules. :returns: A list of :class:`~tinycss2.ast.Declaration`, :class:`~tinycss2.ast.AtRule`, :class:`~tinycss2.ast.Comment` (if ``skip_comments`` is false), :class:`~tinycss2.ast.WhitespaceToken` (if ``skip_whitespace`` is false), and :class:`~tinycss2.ast.ParseError` objects rrr:r#)rrr0r;r9r<rrrparse_declaration_lists$      r?cCs^t||}t|}|dkr(tddddSt||}t|}|dk rZt|j|jdd|jS|S)aParse a single :diagram:`qualified rule` or :diagram:`at-rule`. This would be used e.g. by `insertRule() `_ in an implementation of CSSOM. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: If the input is a string, ignore all CSS comments. :returns: A :class:`~tinycss2.ast.QualifiedRule`, :class:`~tinycss2.ast.AtRule`, or :class:`~tinycss2.ast.ParseError` objects. Any whitespace or comment before or after the rule is dropped. Nrrrrz4Expected a single rule, got %s after the first rule.)rrr _consume_rulerrr)r r rrZrulenextrrrparse_one_rule4s  rBcCs`t||}g}|D]H}|jdkr0|sZ||q|jdkrJ|sZ||q|t||q|S)aParse a non-top-level :diagram:`rule list`. Deprecated and removed from CSS Syntax. Use :func:`parse_blocks_contents` instead. This is used for parsing the :attr:`~tinycss2.ast.AtRule.content` of nested rules like ``@media``. This differs from :func:`parse_stylesheet` in that top-level ```` tokens are not ignored. :type input: :obj:`str` or :term:`iterable` :param input: A string or an iterable of :term:`component values`. :type skip_comments: :obj:`bool` :param skip_comments: Ignore CSS comments at the top-level of the list. If the input is a string, ignore all comments. :type skip_whitespace: :obj:`bool` :param skip_whitespace: Ignore whitespace at the top-level of the list. Whitespace is still preserved in the :attr:`~tinycss2.ast.QualifiedRule.prelude` and the :attr:`~tinycss2.ast.QualifiedRule.content` of rules. :returns: A list of :class:`~tinycss2.ast.QualifiedRule`, :class:`~tinycss2.ast.AtRule`, :class:`~tinycss2.ast.Comment` (if ``skip_comments`` is false), :class:`~tinycss2.ast.WhitespaceToken` (if ``skip_whitespace`` is false), and :class:`~tinycss2.ast.ParseError` objects. rrrrr0r@r<rrrparse_rule_listVs!     rDcCsht||}g}|D]P}|jdkr0|sb||q|jdkrJ|sb||q|dkr|t||q|S)aParse :diagram:`stylesheet` from text. This is used e.g. for a ``