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Edit: template.cpython-310.pyc
o �xe'� � @ s� d Z ddlmZmZmZ ddlZddlZddlZddl Z ddl Z ddl Z ddl m Z ddlmZ ddlmZmZmZmZ erEddlmZ nddlmZ dZe� Zd d � ZG d d � d e�Z G d d� de�Z G dd� de �Z G dd� de �Z G dd� de�Z G dd� de �Z!G dd� de �Z"G dd� de �Z#G dd � d e �Z$G d d � d e �Z%G d d � d e �Z&G d!d"� d"e �Z'G d#d$� d$e �Z(G d%d&� d&e �Z)G d'd(� d(e �Z*G d)d*� d*e*�Z+G d+d,� d,e �Z,G d-d.� d.e-�Z.G d/d0� d0e�Z/G d1d2� d2e�Z0d3d4� Z1d7d5d6�Z2dS )8a� A simple template system that compiles templates to Python code. Basic usage looks like:: t = template.Template("<html>{{ myvalue }}</html>") print(t.generate(myvalue="XXX")) `Loader` is a class that loads templates from a root directory and caches the compiled templates:: loader = template.Loader("/home/btaylor") print(loader.load("test.html").generate(myvalue="XXX")) We compile all templates to raw Python. Error-reporting is currently... uh, interesting. Syntax for the templates:: ### base.html <html> <head> <title>{% block title %}Default title{% end %}</title> </head> <body> <ul> {% for student in students %} {% block student %} <li>{{ escape(student.name) }}</li> {% end %} {% end %} </ul> </body> </html> ### bold.html {% extends "base.html" %} {% block title %}A bolder title{% end %} {% block student %} <li><span style="bold">{{ escape(student.name) }}</span></li> {% end %} Unlike most other template systems, we do not put any restrictions on the expressions you can include in your statements. ``if`` and ``for`` blocks get translated exactly into Python, so you can do complex expressions like:: {% for student in [p for p in people if p.student and p.age > 23] %} <li>{{ escape(student.name) }}</li> {% end %} Translating directly to Python means you can apply functions to expressions easily, like the ``escape()`` function in the examples above. You can pass functions in to your template just like any other variable (In a `.RequestHandler`, override `.RequestHandler.get_template_namespace`):: ### Python code def add(x, y): return x + y template.execute(add=add) ### The template {{ add(1, 2) }} We provide the functions `escape() <.xhtml_escape>`, `.url_escape()`, `.json_encode()`, and `.squeeze()` to all templates by default. Typical applications do not create `Template` or `Loader` instances by hand, but instead use the `~.RequestHandler.render` and `~.RequestHandler.render_string` methods of `tornado.web.RequestHandler`, which load templates automatically based on the ``template_path`` `.Application` setting. Variable names beginning with ``_tt_`` are reserved by the template system and should not be used by application code. Syntax Reference ---------------- Template expressions are surrounded by double curly braces: ``{{ ... }}``. The contents may be any python expression, which will be escaped according to the current autoescape setting and inserted into the output. Other template directives use ``{% %}``. To comment out a section so that it is omitted from the output, surround it with ``{# ... #}``. These tags may be escaped as ``{{!``, ``{%!``, and ``{#!`` if you need to include a literal ``{{``, ``{%``, or ``{#`` in the output. ``{% apply *function* %}...{% end %}`` Applies a function to the output of all template code between ``apply`` and ``end``:: {% apply linkify %}{{name}} said: {{message}}{% end %} Note that as an implementation detail apply blocks are implemented as nested functions and thus may interact strangely with variables set via ``{% set %}``, or the use of ``{% break %}`` or ``{% continue %}`` within loops. ``{% autoescape *function* %}`` Sets the autoescape mode for the current file. This does not affect other files, even those referenced by ``{% include %}``. Note that autoescaping can also be configured globally, at the `.Application` or `Loader`.:: {% autoescape xhtml_escape %} {% autoescape None %} ``{% block *name* %}...{% end %}`` Indicates a named, replaceable block for use with ``{% extends %}``. Blocks in the parent template will be replaced with the contents of the same-named block in a child template.:: <!-- base.html --> <title>{% block title %}Default title{% end %}</title> <!-- mypage.html --> {% extends "base.html" %} {% block title %}My page title{% end %} ``{% comment ... %}`` A comment which will be removed from the template output. Note that there is no ``{% end %}`` tag; the comment goes from the word ``comment`` to the closing ``%}`` tag. ``{% extends *filename* %}`` Inherit from another template. Templates that use ``extends`` should contain one or more ``block`` tags to replace content from the parent template. Anything in the child template not contained in a ``block`` tag will be ignored. For an example, see the ``{% block %}`` tag. ``{% for *var* in *expr* %}...{% end %}`` Same as the python ``for`` statement. ``{% break %}`` and ``{% continue %}`` may be used inside the loop. ``{% from *x* import *y* %}`` Same as the python ``import`` statement. ``{% if *condition* %}...{% elif *condition* %}...{% else %}...{% end %}`` Conditional statement - outputs the first section whose condition is true. (The ``elif`` and ``else`` sections are optional) ``{% import *module* %}`` Same as the python ``import`` statement. ``{% include *filename* %}`` Includes another template file. The included file can see all the local variables as if it were copied directly to the point of the ``include`` directive (the ``{% autoescape %}`` directive is an exception). Alternately, ``{% module Template(filename, **kwargs) %}`` may be used to include another template with an isolated namespace. ``{% module *expr* %}`` Renders a `~tornado.web.UIModule`. The output of the ``UIModule`` is not escaped:: {% module Template("foo.html", arg=42) %} ``UIModules`` are a feature of the `tornado.web.RequestHandler` class (and specifically its ``render`` method) and will not work when the template system is used on its own in other contexts. ``{% raw *expr* %}`` Outputs the result of the given expression without autoescaping. ``{% set *x* = *y* %}`` Sets a local variable. ``{% try %}...{% except %}...{% else %}...{% finally %}...{% end %}`` Same as the python ``try`` statement. ``{% while *condition* %}... {% end %}`` Same as the python ``while`` statement. ``{% break %}`` and ``{% continue %}`` may be used inside the loop. ``{% whitespace *mode* %}`` Sets the whitespace mode for the remainder of the current file (or until the next ``{% whitespace %}`` directive). See `filter_whitespace` for available options. New in Tornado 4.3. � )�absolute_import�division�print_functionN)�escape)�app_log)� ObjectDict�exec_in� unicode_type�PY3)�StringIO� xhtml_escapec C sV | dkr|S | dkrt �dd|�}t �dd|�}|S | dkr%t �dd|�S td | ��) a� Transform whitespace in ``text`` according to ``mode``. Available modes are: * ``all``: Return all whitespace unmodified. * ``single``: Collapse consecutive whitespace with a single whitespace character, preserving newlines. * ``oneline``: Collapse all runs of whitespace into a single space character, removing all newlines in the process. .. versionadded:: 4.3 �all�singlez([\t ]+)� z (\s*\n\s*)� Zonelinez(\s+)zinvalid whitespace mode %s)�re�sub� Exception)�mode�text� r �M/opt/saltstack/salt/lib/python3.10/site-packages/salt/ext/tornado/template.py�filter_whitespace� s r c @ s< e Zd ZdZddeedfdd�Zdd� Zdd � Zd d � ZdS ) �Templatez�A compiled template. We compile into Python from the given template_string. You can generate the template from variables with generate(). z<string>Nc C s: t �|�| _|tur|durtd��|rdnd}|du r4|r%|jr%|j}n|�d�s/|�d�r2d}nd}t|d� |turA|| _n |rH|j| _nt | _|rP|j ni | _ t |t �|�|�}t | t || ��| _| �|�| _|| _ztt �| j�d| j�d d � d d d �| _W dS ty� t| j��� }t�d| j|� � w )a� Construct a Template. :arg str template_string: the contents of the template file. :arg str name: the filename from which the template was loaded (used for error message). :arg tornado.template.BaseLoader loader: the `~tornado.template.BaseLoader` responsible for this template, used to resolve ``{% include %}`` and ``{% extend %}`` directives. :arg bool compress_whitespace: Deprecated since Tornado 4.3. Equivalent to ``whitespace="single"`` if true and ``whitespace="all"`` if false. :arg str autoescape: The name of a function in the template namespace, or ``None`` to disable escaping by default. :arg str whitespace: A string specifying treatment of whitespace; see `filter_whitespace` for options. .. versionchanged:: 4.3 Added ``whitespace`` parameter; deprecated ``compress_whitespace``. Nz2cannot set both whitespace and compress_whitespacer r z.htmlz.js� z%s.generated.py�.�_�execT)� dont_inheritz %s code: %s)r Z native_str�name�_UNSETr � whitespace�endswithr � autoescape�_DEFAULT_AUTOESCAPE� namespace�_TemplateReader�_File�_parse�file�_generate_python�code�loader�compileZ to_unicode�replace�compiled� _format_code�rstripr �error) �selfZtemplate_stringr r, Zcompress_whitespacer# r! �readerZformatted_coder r r �__init__ sF � � �zTemplate.__init__c s~ t jt jt jt jt jt jtt jtt f� j � dd�t � fdd�d�d� }|� � j� |� |� t� j|� |d }t�� |� S )z0Generate this template with the given arguments.r r c s � j S �N)r+ �r �r3 r r �<lambda>S s z#Template.generate.<locals>.<lambda>)� get_source) r r � url_escape� json_encode�squeeze�linkify�datetimeZ_tt_utf8Z_tt_string_types�__name__� __loader__Z _tt_execute)r r r; r< r= r> r? �utf8r �bytesr r. r �updater% r r/ � linecache� clearcache)r3 �kwargsr% Zexecuter r8 r �generateD s$ � zTemplate.generatec C sr t � }z0i }| �|�}|�� |D ]}|�||� qt||||d j�}|d �|� |�� W |�� S |�� w �Nr ) r �_get_ancestors�reverse�find_named_blocks� _CodeWriter�templaterH �getvalue�close)r3 r, �buffer� named_blocks� ancestorsZancestor�writerr r r r* _ s �zTemplate._generate_pythonc C sR | j g}| j jjD ] }t|t�r&|std��|�|j| j�}|�|� |�� q |S )Nz1{% extends %} block found, but no template loader) r) �body�chunks� isinstance� _ExtendsBlock� ParseError�loadr �extendrJ )r3 r, rS �chunkrN r r r rJ o s �zTemplate._get_ancestors) r@ � __module__� __qualname__�__doc__r r5 rH r* rJ r r r r r � s �D r c @ sD e Zd ZdZeddfdd�Zdd� Zd dd�Zd d d �Zd d � Z dS )� BaseLoaderz�Base class for template loaders. You must use a template loader to use template constructs like ``{% extends %}`` and ``{% include %}``. The loader caches all templates after they are loaded the first time. Nc C s* || _ |pi | _|| _i | _t�� | _dS )a� Construct a template loader. :arg str autoescape: The name of a function in the template namespace, such as "xhtml_escape", or ``None`` to disable autoescaping by default. :arg dict namespace: A dictionary to be added to the default template namespace, or ``None``. :arg str whitespace: A string specifying default behavior for whitespace in templates; see `filter_whitespace` for options. Default is "single" for files ending in ".html" and ".js" and "all" for other files. .. versionchanged:: 4.3 Added ``whitespace`` parameter. N)r# r% r! � templates� threading�RLock�lock)r3 r# r% r! r r r r5 � s zBaseLoader.__init__c C s2 | j � i | _W d � dS 1 sw Y dS )z'Resets the cache of compiled templates.N)rd ra r8 r r r �reset� s "�zBaseLoader.resetc C � t � �)z@Converts a possibly-relative path to absolute (used internally).��NotImplementedError�r3 r � parent_pathr r r � resolve_path� s zBaseLoader.resolve_pathc C s\ | j ||d�}| j� || jvr| �|�| j|< | j| W d � S 1 s'w Y dS )zLoads a template.)rj N)rk rd ra �_create_templateri r r r rZ � s $�zBaseLoader.loadc C rf r6 rg �r3 r r r r rl � � zBaseLoader._create_templater6 ) r@ r] r^ r_ r$ r5 re rk rZ rl r r r r r` { s � r` c �2 e Zd ZdZ� fdd�Zd dd�Zdd� Z� ZS ) �Loaderz?A template loader that loads from a single root directory. c s( t t| �jdi |�� tj�|�| _d S �Nr )�superrp r5 �os�path�abspath�root)r3 Zroot_directoryrG �� __class__r r r5 � s zLoader.__init__Nc C s� |r?|� d�s?|� d�s?|� d�s?tj�| j|�}tj�tj�|��}tj�tj�||��}|� | j�r?|t| j�d d � }|S )N�<�/� )� startswithrs rt �joinrv �dirnameru �len)r3 r rj Z current_path�file_dirZ relative_pathr r r rk � s �� zLoader.resolve_pathc C sT t j�| j|�}t|d��}t|�� || d�}|W d � S 1 s#w Y d S )N�rb�r r, )rs rt r} rv �openr �read)r3 r rt �frN r r r rl � s $�zLoader._create_templater6 �r@ r] r^ r_ r5 rk rl � __classcell__r r rw r rp � s rp c ro ) � DictLoaderz/A template loader that loads from a dictionary.c s t t| �jdi |�� || _d S rq )rr r� r5 �dict)r3 r� rG rw r r r5 � s zDictLoader.__init__Nc C sB |r |� d�s |� d�s |� d�s t�|�}t�t�||��}|S )Nry rz )r| � posixpathr~ �normpathr} )r3 r rj r� r r r rk � s �� zDictLoader.resolve_pathc C s t | j| || d�S )Nr� )r r� rm r r r rl � � zDictLoader._create_templater6 r� r r rw r r� � s r� c @ �$ e Zd Zdd� Zdd� Zdd� ZdS )�_Nodec C s dS rq r r8 r r r � each_child� � z_Node.each_childc C rf r6 rg �r3 rT r r r rH � rn z_Node.generatec C s | � � D ]}|�||� qd S r6 )r� rL )r3 r, rR �childr r r rL � s �z_Node.find_named_blocksN)r@ r] r^ r� rH rL r r r r r� � s r� c @ r� )r' c C s || _ || _d| _d S rI )rN rU �line)r3 rN rU r r r r5 � � z_File.__init__c C sr |� d| j� |�� �$ |� d| j� |� d| j� | j�|� |� d| j� W d � d S 1 s2w Y d S )Nzdef _tt_execute():�_tt_buffer = []� _tt_append = _tt_buffer.append�$return _tt_utf8('').join(_tt_buffer))� write_liner� �indentrU rH r� r r r rH � s "�z_File.generatec C � | j fS r6 �rU r8 r r r r� � � z_File.each_childN�r@ r] r^ r5 rH r� r r r r r' � s r' c @ r� )� _ChunkListc C � || _ d S r6 �rV )r3 rV r r r r5 � � z_ChunkList.__init__c C s | j D ]}|�|� qd S r6 )rV rH )r3 rT r\ r r r rH s �z_ChunkList.generatec C � | j S r6 r� r8 r r r r� rn z_ChunkList.each_childNr� r r r r r� � s r� c @ s, e Zd Zdd� Zdd� Zdd� Zdd� Zd S ) � _NamedBlockc C s || _ || _|| _|| _d S r6 )r rU rN r� )r3 r rU rN r� r r r r5 s z_NamedBlock.__init__c C r� r6 r� r8 r r r r� r� z_NamedBlock.each_childc C sN |j | j }|�|j| j�� |j�|� W d � d S 1 s w Y d S r6 )rR r �includerN r� rU rH )r3 rT �blockr r r rH s "�z_NamedBlock.generatec C s | || j < t�| ||� d S r6 )r r� rL )r3 r, rR r r r rL s z _NamedBlock.find_named_blocksN)r@ r] r^ r5 r� rH rL r r r r r� s r� c @ s e Zd Zdd� ZdS )rX c C r� r6 r7 rm r r r r5 r� z_ExtendsBlock.__init__N)r@ r] r^ r5 r r r r rX s rX c @ r� )� _IncludeBlockc C s || _ |j | _|| _d S r6 )r � template_namer� )r3 r r4 r� r r r r5 " s z_IncludeBlock.__init__c C s" |� | j| j�}|j�||� d S r6 )rZ r r� r) rL )r3 r, rR �includedr r r rL ' s z _IncludeBlock.find_named_blocksc C sT |j �| j| j�}|�|| j�� |jj�|� W d � d S 1 s#w Y d S r6 ) r, rZ r r� r� r� r) rU rH )r3 rT r� r r r rH + s "�z_IncludeBlock.generateN)r@ r] r^ r5 rL rH r r r r r� ! s r� c @ �& e Zd Zddd�Zdd� Zdd� ZdS ) � _ApplyBlockNc C � || _ || _|| _d S r6 )�methodr� rU )r3 r� r� rU r r r r5 2 r� z_ApplyBlock.__init__c C r� r6 r� r8 r r r r� 7 r� z_ApplyBlock.each_childc C s� d|j }| j d7 _ |�d| | j� |�� �# |�d| j� |�d| j� | j�|� |�d| j� W d � n1 s?w Y |�d| j|f | j� d S )Nz _tt_apply%dr{ z def %s():r� r� r� z _tt_append(_tt_utf8(%s(%s()))))� apply_counterr� r� r� rU rH r� )r3 rT � method_namer r r rH : s ���z_ApplyBlock.generater6 �r@ r] r^ r5 r� rH r r r r r� 1 � r� c @ r� ) � _ControlBlockNc C r� r6 )� statementr� rU )r3 r� r� rU r r r r5 H r� z_ControlBlock.__init__c C r� r6 r� r8 r r r r� M r� z_ControlBlock.each_childc C s\ |� d| j | j� |�� � | j�|� |� d| j� W d � d S 1 s'w Y d S )N�%s:�pass)r� r� r� r� rU rH r� r r r rH P s "�z_ControlBlock.generater6 r� r r r r r� G r� r� c @ � e Zd Zdd� Zdd� ZdS )�_IntermediateControlBlockc C � || _ || _d S r6 �r� r� �r3 r� r� r r r r5 Y � z"_IntermediateControlBlock.__init__c C s0 |� d| j� |� d| j | j|�� d � d S )Nr� r� r{ )r� r� r� � indent_sizer� r r r rH ] s "z"_IntermediateControlBlock.generateN�r@ r] r^ r5 rH r r r r r� X � r� c @ r� )� _Statementc C r� r6 r� r� r r r r5 d r� z_Statement.__init__c C s |� | j| j� d S r6 )r� r� r� r� r r r rH h r� z_Statement.generateNr� r r r r r� c r� r� c @ s e Zd Zddd�Zdd� ZdS )� _ExpressionFc C r� r6 )� expressionr� �raw)r3 r� r� r� r r r r5 m r� z_Expression.__init__c C sj |� d| j | j� |� d| j� |� d| j� | js,|jjd ur,|� d|jj | j� |� d| j� d S )Nz _tt_tmp = %szEif isinstance(_tt_tmp, _tt_string_types): _tt_tmp = _tt_utf8(_tt_tmp)z&else: _tt_tmp = _tt_utf8(str(_tt_tmp))z _tt_tmp = _tt_utf8(%s(_tt_tmp))z_tt_append(_tt_tmp))r� r� r� r� �current_templater# r� r r r rH r s ���z_Expression.generateN)Fr� r r r r r� l s r� c s e Zd Z� fdd�Z� ZS )�_Modulec s t t| �jd| |dd� d S )Nz _tt_modules.T�r� )rr r� r5 )r3 r� r� rw r r r5 � s �z_Module.__init__)r@ r] r^ r5 r� r r rw r r� s r� c @ r� )�_Textc C r� r6 )�valuer� r! )r3 r� r� r! r r r r5 � r� z_Text.__init__c C s> | j }d|vr t| j|�}|r |�dt�|� | j� d S d S )Nz<pre>z_tt_append(%r))r� r r! r� r rB r� )r3 rT r� r r r rH � s �z_Text.generateNr� r r r r r� � s r� c @ s" e Zd ZdZddd�Zdd� ZdS ) rY z�Raised for template syntax errors. ``ParseError`` instances have ``filename`` and ``lineno`` attributes indicating the position of the error. .. versionchanged:: 4.3 Added ``filename`` and ``lineno`` attributes. 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