a [f}@sdZddlZddlZddlZddlZddlmZddlmZm Z ddl m Z dgZ edZd d Zd d ZGd ddeZddZeZ[eZdddZdS)zG Parser for the environment markers micro-language defined in PEP 508. N) string_types)in_venv parse_marker)NormalizedVersion interpretz<((\d+(\.\d+)*\w*)|\'(\d+(\.\d+)*\w*)\'|\"(\d+(\.\d+)*\w*)\")cCst|tr|sdS|ddvS)NFr'") isinstancer)or ?/usr/lib/python3.9/site-packages/pip/_vendor/distlib/markers.py _is_literalsr cCs2g}t|D]}|t|dqt|S)Nr)_VERSION_PATTERNfinditerappendNVgroupsset)sresultmr r r _get_versions!src @sfeZdZdZddddddddddddd dd dd dd dd dddd ZddZdS) Evaluatorz; This class is used to evaluate marker expessions. cCs||kSNr xyr r r -zEvaluator.cCs||kSrr rr r r r.rcCs||kp||kSrr rr r r r/rcCs||kSrr rr r r r0rcCs||kSrr rr r r r1rcCs||kp||kSrr rr r r r2rcCs||kSrr rr r r r3rcCs||kp||kSrr rr r r r4rcCs|o|Srr rr r r r5rcCs|p|Srr rr r r r6rcCs||vSrr rr r r r7rcCs||vSrr rr r r r8r) =====~=!=<<=>>=andorinnot inc Cst|trB|ddvr$|dd}n||vr8td|||}n|d}||jvr`td||d}|d }t|drt|d rtd |||f|||}|||}|d ks|d kr|d vrt|}t|}n |d kr|d vrt|}t|}|j|||}|S)z Evaluate a marker expression returned by the :func:`parse_requirement` function in the specified context. rrrzunknown variable: %sopzop not implemented: %slhsrhszinvalid comparison: %s %s %spython_version)r#r$r%r&r rr"r!)r)r*) r r SyntaxError operationsNotImplementedErrorr evaluaterr) selfexprcontextrr,ZelhsZerhsr-r.r r r r3;s2         zEvaluator.evaluateN)__name__ __module__ __qualname____doc__r1r3r r r r r'src Csdd}ttdr(|tjj}tjj}nd}d}||tjttt t tt t t t ddtjd }|S)NcSs<d|j|j|jf}|j}|dkr8||dt|j7}|S)Nz%s.%s.%sfinalr)majorminormicro releaselevelstrserial)infoversionkindr r r format_full_version^s z,default_context..format_full_versionimplementation0) implementation_nameimplementation_versionZos_nameZplatform_machineZplatform_python_implementationZplatform_releaseZplatform_systemZplatform_versionZplatform_in_venvZpython_full_versionr/Z sys_platform)hasattrsysrFrCnameosplatformmachineZpython_implementationreleasesystemr@rr/)rErKrJrr r r default_context]s(   rTc Cszt|\}}Wn4tyD}ztd||fWYd}~n d}~00|rf|ddkrftd||ftt}|r|||t||S)z 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#z*unexpected trailing data in marker: %s: %s)r Exceptionr0dictDEFAULT_CONTEXTupdate evaluatorr3)ZmarkerZexecution_contextr5rester6r r r rs & )N)r:rOrerMrPcompatrutilrrrCrr__all__compilerr robjectrrTrXrZrr r r r s"   6