3
ƒ”Re# ã @ sŠ d Z ddlZddlZddlZddlZddlmZmZmZ ddl m
Z
m Z dgZ dd„ Z
G d d
„ d
eƒZd d „ Zeƒ Z[eƒ Zdd
d„ZdS )zG
Parser for the environment markers micro-language defined in PEP 508.
é Né )Úpython_implementationÚurlparseÚ string_types)Úin_venvÚ parse_markerÚ interpretc C s" t | tƒ s| rdS | d dkS )NFr z'")Ú
isinstancer )Úo© r úŠ/builddir/build/BUILDROOT/alt-python36-pip-20.2.4-5.el9.x86_64/opt/alt/python36/lib/python3.6/site-packages/pip/_vendor/distlib/markers.pyÚ _is_literal s r
c
@ sf e Zd ZdZdd„ dd„ dd„ dd„ dd„ dd„ d d„ d
d„ d d„ d d„ d
d„ dd„ dœ Zdd„ ZdS )Ú Evaluatorz;
This class is used to evaluate marker expessions.
c C s | |kS )Nr )ÚxÚyr r r Ú$ s zEvaluator.c C s | |kS )Nr )r r r r r r % s c C s | |kp| |kS )Nr )r r r r r r & s c C s | |kS )Nr )r r r r r r ' s c C s | |k S )Nr )r r r r r r ( s c C s | |kp| |k S )Nr )r r r r r r ) s c C s | |kS )Nr )r r r r r r * s c C s | |kp| |kS )Nr )r r r r r r + s c C s | o|S )Nr )r r r r r r , s c C s | p|S )Nr )r r r r r r - s c C s | |kS )Nr )r r r r r r . s c C s | |kS )Nr )r r r r r r / s ) z==z===z~=z!=úz>=ÚandÚorÚinznot inc C sÔ t |tƒrB|d dkr$|dd
… }qÐ||kr8td| ƒ‚|| }nŽt |tƒsPt‚|d }|| jkrntd| ƒ‚|d }|d }t|d ƒr¨t|d ƒr¨td |||f ƒ‚| j||ƒ}| j||ƒ}| j| ||ƒ}|S ) zƒ
Evaluate a marker expression returned by the :func:`parse_requirement`
function in the specified context.
r z'"r zunknown variable: %sÚopzop not implemented: %sÚlhsÚrhsz invalid comparison: %s %s %séÿÿÿÿ) r r Ú SyntaxErrorÚdictÚAssertionErrorÚ
operationsÚNotImplementedErrorr
Úevaluate) ÚselfÚexprÚcontextÚresultr ZelhsZerhsr r r r r r 2 s$
zEvaluator.evaluateN)Ú__name__Ú
__module__Ú __qualname__Ú__doc__r r r r r r r s r c
C s€ dd„ } t tdƒr(| tjjƒ}tjj}nd}d}||tjtjƒ tjƒ tj ƒ tj
ƒ tjƒ t t ƒ ƒtj
ƒ tj
ƒ d d… tjdœ }|S )Nc S s< d| j | j| jf }| j}|dkr8||d t| jƒ 7 }|S )Nz%s.%s.%sÚfinalr )ÚmajorÚminorÚmicroÚ releaselevelÚstrÚserial)ÚinfoÚversionÚkindr r r Úformat_full_versionN s
z,default_context..format_full_versionÚimplementationÚ0Ú é ) Úimplementation_nameÚimplementation_versionÚos_nameÚplatform_machineÚ platform_python_implementationÚplatform_releaseÚplatform_systemÚplatform_versionZplatform_in_venvÚpython_full_versionÚpython_versionÚ sys_platform)ÚhasattrÚsysr4 r1 ÚnameÚosÚplatformÚmachiner ÚreleaseÚsystemr. r rA )r3 r9 r8 r$ r r r Údefault_contextM s&
rK c C s† yt | ƒ\}}W n2 tk
rB } ztd| |f ƒ‚W Y dd}~X nX |rd|d dkrdtd| |f ƒ‚ttƒ}|rz|j|ƒ tj||ƒS )zò
Interpret a marker and return a result depending on environment.
:param marker: The marker to interpret.
:type marker: str
:param execution_context: The context used for name lookup.
:type execution_context: mapping
z)Unable to interpret marker syntax: %s: %sNr ú#z*unexpected trailing data in marker: %s: %s)r Ú Exceptionr r ÚDEFAULT_CONTEXTÚupdateÚ evaluatorr )ÚmarkerZexecution_contextr" ÚrestÚer# r r r r q s "
)N)r( rF rD rG ÚreÚcompatr r r Úutilr r Ú__all__r
Úobjectr rK rN rP r r r r r Ú s /