!;i`dZddlmZddlmZdZdZdZdZdZ d Z d Z d Z d Z d ZdZdZdS)auMIME-Type Parser This module provides basic functions for handling mime-types. It can handle matching mime-types against a list of media-ranges. See section 14.1 of the HTTP specification [RFC 2616] for a complete explanation. http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1 Contents: - parse_mime_type(): Parses a mime-type into its component parts. - parse_media_range(): Media-ranges are mime-types with wild-cards and a 'q' quality parameter. - quality(): Determines the quality ('q') of a mime-type when compared against a list of media-ranges. - quality_parsed(): Just like quality() except the second parameter must be pre-parsed. - best_match(): Choose the mime-type with the highest quality ('q') from a list of candidates. )absolute_import)reducez0.1.3z Joe Gregoriozjoe@bitworking.orgz MIT Licensec4|d}td|ddD}|d}|dkrd}|d\}}|||fS) aRParses a mime-type into its component parts. Carves up a mime-type and returns a tuple of the (type, subtype, params) where 'params' is a dictionary of all the parameters for the media range. For example, the media range 'application/xhtml;q=0.5' would get parsed into: ('application', 'xhtml', {'q', '0.5'}) ;c hg|]/}td|ddD0S)c6g|]}|Sstrip).0ss MC:\PYTHON\MyICR_Workspace\venv\Lib\site-packages\googleapiclient/mimeparse.py z.parse_mime_type.../s 777a 777=)tuplesplit)r params rrz#parse_mime_type../s=PPPU775;;sA#6#6777 8 8PPPrrNr*z*/*/)rdictr ) mime_typepartsparams full_typetypesubtypes rparse_mime_typer #s OOC E PPeABBiPPPFa  IC ooc**OT7 JJLL'--//6 22rct|\}}}d|vsO|drGt|dr2t|ddkst|ddkrd|d<|||fS)aParse a media-range into its component parts. Carves up a media range and returns a tuple of the (type, subtype, params) where 'params' is a dictionary of all the parameters for the media range. For example, the media range 'application/*;q=0.5' would get parsed into: ('application', '*', {'q', '0.5'}) In addition this function also guarantees that there is a value for 'q' in the params dictionary, filling it in with a proper default if necessary. qrr1)r float)rangerrrs rparse_media_ranger&;s.e44T7F 6c{ VC[!!     ! !    ! !s '6 ""rcn d}d}t|\}}}|D]\}} ||kp |dkp|dk} ||kp |dkp|dk} | r^| r\td fd|Dd} ||krdpd} | ||krdpdz } | | z } | |kr | } d}|t|fS) aFind the best match for a mime-type amongst parsed media-ranges. Find the best match for a given mime-type against a list of media_ranges that have already been parsed by parse_media_range(). Returns a tuple of the fitness value and the value of the 'q' quality parameter of the best match, or (-1, 0) if no match was found. Just as for quality_parsed(), 'parsed_ranges' must be a list of parsed media ranges. rrc ||zSNr )xys rz,fitness_and_quality_parsed..is QUrcFg|]\}}|dk |v||kdS)r"rr )r keyvaluers rrz.fitness_and_quality_parsed..jsF$eczzcVmm8L8L8L8L8Lrd r")r&ritemsr$)r parsed_ranges best_fitness best_fit_q target_typetarget_subtype target_paramsrr type_match subtype_match param_matchesfitnessrs @rfitness_and_quality_parsedr>Vs9LJ3DY3O3O0[.-#0))w[(MDCKM;#;M ~ % PC P>S;P   )- )"""(5(;(;(=(= M{*38qG >19r>Q >G } $G%%& #C[ z** **rc.t||dS)aFind the best match for a mime-type amongst parsed media-ranges. Find the best match for a given mime-type against a list of media_ranges that have already been parsed by parse_media_range(). Returns the 'q' quality parameter of the best match, 0 if no match was found. This function bahaves the same as quality() except that 'parsed_ranges' must be a list of parsed media ranges. r)r>)rr4s rquality_parsedr@{s &i ? ? BBrc`d|dD}t||S)aKReturn the quality ('q') of a mime-type against a list of media-ranges. Returns the quality 'q' of a mime-type when compared against the media-ranges in ranges. For example: >>> quality('text/html','text/*;q=0.3, text/html;q=0.7, text/html;level=1, text/html;level=2;q=0.4, */*;q=0.5') 0.7 c,g|]}t|Sr r&r rs rrzquality..s!EEEa&q))EEEr,)rr@)rrangesr4s rqualityrHs4FE6<<3D3DEEEM )] 3 33rc6t|d}d|D}g}d}|D]-}|t||||f|dz }.||dddr|ddpdS)aYReturn mime-type with the highest quality ('q') from list of candidates. Takes a list of supported mime-types and finds the best match for all the media-ranges listed in header. The value of header must be a string that conforms to the format of the HTTP Accept: header. The value of 'supported' is a list of mime-types. The list of supported mime-types should be sorted in order of increasing desirability, in case of a situation where there is a tie. >>> best_match(['application/xbel+xml', 'text/xml'], 'text/*;q=0.5,*/*; q=0.1') 'text/xml' rFc,g|]}t|Sr rCrDs rrzbest_match..s!@@@a&q))@@@rrrr(r) _filter_blankrappendr>sort) supportedheader split_header parsed_headerweighted_matchesposrs r best_matchrUs!c!2!233L@@<@@@M C  ' = A A3 R    q B  "1 % A*:2*>q*A GRGrc#DK|D]}|r|VdSr*r )irs rrLrLs9  7799 GGGrN)__doc__ __future__r functoolsr __version__ __author__ __email__ __license__ __credits__r r&r>r@rHrUrLr rrr`s &'&&&&&    3330###6"+"+"+J C C C 4 4 4 HHH8r