]jwy d Z ddlZddlmZ ddlmZ ddlmZ ddlmZ ddlm Z dd lm
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e!e" Z% G d de% Z& G d de% Z' G d d e% Z( G d d e& Z) G d d!e& Z* G d" d#e& Z+ G d$ d%e& Z, G d& d'e& Z- G d( d)e& Z. G d* d+e& Z/ G d, d-e& Z0 G d. d/e& Z1 G d0 d1e& Z2 G d2 d3e& Z3 G d4 d5e& Z4 G d6 d7e& Z5 G d8 d9e& Z6 G d: d;e& Z7 G d< d=e% Z8 G d> d?e8 Z9 G d@ dAe8 Z: G dB dCe8 Z; G dD dEe8 Z< G dF dGe8 Z= G dH dIe= Z> G dJ dKe= Z? G dL dMe= Z@ G dN dOe= ZA G dP dQe= ZB G dR dSe' ZC G dT dUe' ZD G dV dWe8 ZEdX ZF G dY dZe8 ZG G d[ d\e8 ZH G d] d^e8 ZI G d_ d`e8 ZJ G da dbe8 ZK G dc dde8 ZL G de dfe8 ZM G dg dhe8 ZN G di dje' ZO eOxj dldmP eQdn eRe eRe z eRe z D z z
c_ G do dpe9 ZS G dq dre9 ZT G ds dte9 ZU G du dve9 ZV G dw dxe9 ZW G dy dze9 ZX G d{ d|e9 ZY G d} d~e9 ZZ G d de9 Z[ G d de: Z\ G d de: Z] G d de: Z^ G d de8 Z_ G d de8 Z` G d de8 Za G d de8 Zb G d de8 Zc G d de8 Zd G d de8 Ze G d de8 Zf G d de& Zg G d de& Zh G d de& Zi G d de& Zj G d de& Zk G d dek Zld Zm enem e!_o [mdS )zAST nodes generated by the parser for the compiler. Also provides
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template_names r __init__zEvalContext.__init__B sI & K* + + 5 ) 4 4] C CDOO ) 4DO
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d Zd Zd Zej Zd Zd ZdS )Nodea Baseclass for all Jinja nodes. There are a number of nodes available
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- :class:`Template`: the outermost wrapper node
All nodes have fields and attributes. Fields may be other nodes, lists,
or arbitrary values. Fields are passed to the constructor as regular
positional arguments, attributes as keyword arguments. Each node has
two attributes: `lineno` (the line number of the node) and `environment`.
The `environment` attribute is set at the end of the parsing process for
all nodes automatically.
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tT : : ; ; ; ; M 2T$z:J:J5K5K KLL L M Mr Nc # K | j D ]=}||cxu rn |||vs|*||v r& |t | | fV -# t $ r Y 9w xY w>dS )aZ This method iterates over all fields that are defined and yields
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r c t | g }|rM| }d|j v r||_ | | |M| S )a Reset the context of a node and all child nodes. Per default the
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FFFr r c e Zd ZdZdZdS )Forax The for loop. `target` is the target for the iteration (usually a
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2FFFr r c e Zd ZdZdZdS ) CallBlockzLike a macro without a name but a call instead. `call` is called with
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.. versionadded:: 2.9.3
)targetsvaluesr Nr r r r r r U s +FFFr r c e Zd ZdZdZdS )Blockz A node that represents a block.)r; r scopedNr r r r r r _ s ))
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;FFFr r c e Zd ZdZdZdS )Importz&A node that represents the import tag.)r r r Nr r r r r r k s 00
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.. versionchanged:: 2.4
the `eval_ctx` parameter was added.
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FHH r r c e Zd ZdZdZd ZdS )Namea Looks up a name or stores a value in a name.
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F? ? ? ? r r c e Zd ZdZdZddZdS )Listz&Any list literal such as ``[1, 2, 3]``r Nc J t | fd| j D S )Nc : g | ]}| S r r" r# s r
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F7 7 7 7 7 7r r8 c e Zd ZdZdZddZdS )CondExprzZA conditional expression (inline if expression). (``{{
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..x88 9 9 9 9 ,, " MM$/228<< = = = = ,, <s -A+ +B-B= =Cc e Zd ZdZdZddZdS )Filtera This node applies a filter on an expression. `name` is the name of
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rW r; r rB rC rD Nc t | | }|j s| j t | j j | j }|t |dd du rt |j j r t |dd rt t | | \ }}| d| j | t |dd du r| d| n.t |dd du r| d| j ||i |S # t $ r t w xY w)N
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)rW r rB rC rD Nr r r r rW rW s BFFFr rW c $ e Zd ZdZdZddZd ZdS )Getitemz@Get an attribute or item from an expression and prefer the item.)rW rg rX Nc $ t | | }| j dk rt | j | j | | j | S # t $ r t w xY wNload) rY rX r% rD getitemrW r rg r r s r r zGetitem.as_const s #D(33 8v ,, #++ ""8,,dh.?.?.I.I
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#F r rY c $ e Zd ZdZdZddZd ZdS )GetattrznGet an attribute or item from an expression that is a ascii-only
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)rW r> rX Nc | j dk rt t | | }| j | j | | j S # t $ r t w xY wr[ ) rX r% rY rD r2 rW r r> r r s r r zGetattr.as_const s} 8v ,, 'h77H#++DI,>,>x,H,H$)TT T ,, s AA# #A<c dS rC r rN s r r zGetattr.can_assign r_ r r r& r r r ra ra sH %F r ra c e Zd ZdZdZddZdS )Slicez_Represents a slice object. This must only be used as argument for
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)startstopstepNc t | fd}t || j || j || j S )Nc 6 | d S | S r r" )objr s r constz Slice.as_const.<locals>.const s {t<<)) )r )rY slicerf rg rh )rH r rl s ` r r zSlice.as_const sc #D(33 * * * * *
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KKKKKKr r r r r r ro ro s? FL L L L L Lr ro c e Zd ZdZdZddZdS )CompareziCompares an expression with some other expressions. `ops` must be a
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)expropsNc & t | | }| j | x}} | j D ]>}|j | }t |j || }|s dS |}?n # t $ r t w xY w|S rC )rY rt r ru _cmpop_to_funcopr r% )rH r rw r rx new_values r r zCompare.as_const) s #D(33 ++H555
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The following operators are available: r c # K | ] }d |z V
dS )z``%s``Nr )r r$ s r r r D s:
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r c e Zd ZdZdZdS )Mulz(Multiplies the left with the right node.r
Nr' r( r) r* r r r r r~ r~ K s 22HHHr r~ c e Zd ZdZdZdS )Divz#Divides the left by the right node.r Nr r r r r r Q s --HHHr r c e Zd ZdZdZdS )FloorDivzjDivides the left by the right node and truncates conver the
result into an integer by truncating.
r Nr r r r r r W s HHHr r c e Zd ZdZdZdS )Addz Add the left to the right node.r Nr r r r r r _ s ))HHHr r c e Zd ZdZdZdS )Subz&Subtract the right from the left node.r Nr r r r r r e s 00HHHr r c e Zd ZdZdZdS )ModzLeft modulo right.r Nr r r r r r k s HHHr r c e Zd ZdZdZdS )PowzLeft to the power of right.r
Nr r r r r r q s %%HHHr r c e Zd ZdZdZddZdS )AndzShort circuited AND.andNc t | | }| j | o| j | S r rY r r r r s r r z And.as_const| s< #D(33y!!(++M
0C0CH0M0MMr r r' r( r) r* r r r r r r r w s9 HN N N N N Nr r c e Zd ZdZdZddZdS )OrzShort circuited OR.orNc t | | }| j | p| j | S r r r s r r z Or.as_const s< #D(33y!!(++Ltz/B/B8/L/LLr r r r r r r r s9 HM M M M M Mr r c e Zd ZdZdZdS )NotzNegate the expression.r Nr r r r r r s HHHr r c e Zd ZdZdZdS )Negz Make the expression negative.r Nr r r r r r s ''HHHr r c e Zd ZdZdZdS )Posz8Make the expression positive (noop for most expressions)r Nr r r r r r s BBHHHr r c e Zd ZdZdZdS )EnvironmentAttributezLoads an attribute from the environment object. This is useful for
extensions that want to call a callback stored on the environment.
r Nr r r r r r r r r c e Zd ZdZdZdS )ExtensionAttributezReturns the attribute of an extension bound to the environment.
The identifier is the identifier of the :class:`Extension`.
This node is usually constructed by calling the
:meth:`~jinja2.ext.Extension.attr` method on an extension.
)
identifierr; Nr r r r r r s $FFFr r c e Zd ZdZdZdS ) ImportedNamea& If created with an import name the import name is returned on node
access. For example ``ImportedName('cgi.escape')`` returns the `escape`
function from the cgi module on evaluation. Imports are optimized by the
compiler so there is no need to assign them to local variables.
)
importnameNr r r r r r s FFFr r c e Zd ZdZdZd ZdS ) InternalNamea7 An internal name in the compiler. You cannot create these nodes
yourself but the parser provides a
:meth:`~jinja2.parser.Parser.free_identifier` method that creates
a new identifier for you. This identifier is not available from the
template and is not threated specially by the compiler.
r c t d )NzKCan't create internal names. Use the `free_identifier` method on a parser.ra rN s r rJ zInternalName.__init__ s
4
r N)r' r( r) r* r. rJ r r r r r s4 F
r r c e Zd ZdZdZddZdS )MarkSafez:Mark the wrapped expression as safe (wrap it as `Markup`).rt Nc p t | | }t | j | S r )rY r rt r r s r r zMarkSafe.as_const s/ #D(33di((22333r r r r r r r r s3 DD
F4 4 4 4 4 4r r c e Zd ZdZdZddZdS )MarkSafeIfAutoescapezMark the wrapped expression as safe (wrap it as `Markup`) but
only if autoescaping is active.
.. versionadded:: 2.5
r Nc t | | }|j rt | j | }|j rt
| S |S r )rY rG r% rt r rF r )rH r rt s r r z MarkSafeIfAutoescape.as_const sW #D(33 ,, y!!(++ $<< r r r r r r r r s9 F r r c e Zd ZdZdS )ContextReferenceaP Returns the current template context. It can be used like a
:class:`Name` node, with a ``'load'`` ctx and will return the
current :class:`~jinja2.runtime.Context` object.
Here an example that assigns the current template name to a
variable named `foo`::
Assign(Name('foo', ctx='store'),
Getattr(ContextReference(), 'name'))
This is basically equivalent to using the
:func:`~jinja2.contextfunction` decorator when using the
high-level API, which causes a reference to the context to be passed
as the first argument to a function.
Nr& r r r r r s r r c e Zd ZdZdS )DerivedContextReferencezReturn the current template context including locals. Behaves
exactly like :class:`ContextReference`, but includes local
variables, such as from a ``for`` loop.
.. versionadded:: 2.11
Nr& r r r r r s r r c e Zd ZdZdS )ContinuezContinue a loop.Nr& r r r r r s r r c e Zd ZdZdS )Breakz
Break a loop.Nr& r r r r r
s r r c e Zd ZdZdZdS )ScopezAn artificial scope.r Nr r r r r r s
FFFr r c e Zd ZdZdZdS ) OverlayScopea An overlay scope for extensions. This is a largely unoptimized scope
that however can be used to introduce completely arbitrary variables into
a sub scope from a dictionary or dictionary like object. The `context`
field has to evaluate to a dictionary object.
Example usage::
OverlayScope(context=self.call_method('get_context'),
body=[...])
.. versionadded:: 2.10
)contextr Nr r r r r r s !FFFr r c e Zd ZdZdZdS )EvalContextModifiera
Modifies the eval context. For each option that should be modified,
a :class:`Keyword` has to be added to the :attr:`options` list.
Example to change the `autoescape` setting::
EvalContextModifier(options=[Keyword('autoescape', Const(True))])
)optionsNr r r r r r % s FFFr r c e Zd ZdZdZdS )ScopedEvalContextModifierzModifies the eval context and reverts it later. Works exactly like
:class:`EvalContextModifier` but will only modify the
:class:`~jinja2.nodes.EvalContext` for nodes in the :attr:`body`.
r Nr r r r r r 1 s
FFFr r c t d )Nz can't create custom node typesr )r rB s r _failing_newr ; s
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55r )pr* r collectionsr
markupsafer _compatr r r r multruedivfloordivpowmodaddsubr not_posnegr r r r ger lerw r r% r8 r, r rA rY r[ r r r r r r r r r r r r r r r r r r r r r r r r r r r r( r. r3 r8 r; rE rG rS rW rY ra re ro rs r{ r sortedr5 r~ r r r r r r r r r r r r r r r r r r r r r r r r r r staticmethodr9 r r r <module>r s
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