fh$ddlZddlZddlZddlZddlmZddlmZdddZdd dZ d gZ Gd d Z dS) N)fields)getDatez$Revision: 1.6 $ z$Date: 2010/09/16 05:06:39 $ DbfHeaderceZdZdZdZ ddZdZeeZd ZeeZe d Z e d Z e d Z d Z e de dZ dZdZdZdZdZdZdZdS)r a|Dbf header definition. For more information about dbf header format visit `http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_STRUCT` Examples: Create an empty dbf header and add some field definitions: dbfh = DbfHeader() dbfh.addField(("name", "C", 10)) dbfh.addField(("date", "D")) dbfh.addField(DbfNumericFieldDef("price", 5, 2)) Create a dbf header with field definitions: dbfh = DbfHeader([ ("name", "C", 10), ("date", "D"), DbfNumericFieldDef("price", 5, 2), ]) ) signaturer lastUpdate recordLength recordCount headerLengthchanged_ignore_errorsNrFc||_|g|_nt||_t||_||_||_||_||_t|j|_ dS)aInitialize instance. Arguments: fields: a list of field definitions; recordLength: size of the records; headerLength: size of the header; recordCount: number of records stored in DBF; signature: version number (aka signature). using 0x03 as a default meaning "File without DBT". for more information about this field visit ``http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_NOTE_1_TARGET`` lastUpdate: date of the DBF's update. this could be a string ('yymmdd' or 'yyyymmdd'), timestamp (int or float), datetime/date value, a sequence (assuming (yyyy, mm, dd, ...)) or an object having callable ``ticks`` field. ignoreErrors: error processing mode for DBF fields (boolean) N) r rlistrr r rr ignoreErrorsboolr)selfrrr rr r rs R/var/www/histauto/venv/lib/python3.11/site-packages/tablib/_vendor/dbfpy/header.py__init__zDbfHeader.__init__:sl4# >DKKv,,DK!*--((&(DK(( cj|tjt|S)z.Return header instance from the string object.) fromStreamioStringIOstr)clsstrings r fromStringzDbfHeader.fromStringcs$~~bk#f++66777rc |d|d}t|ts!t|t j}|}t jd|dd\}}}|d}|dkr|dz }n|d z }|d ||||d||d |d f}d} |d}|d kr}||dz }tj |d || } | | | j } |d}|d k}|S)z%Return header object from the stream.r zzDbfHeader.s !5rc|jjSrB)r monthrDs rrEzDbfHeader.s $/"7rc|jjSrB)r dayrDs rrEzDbfHeader.s  3rcTt|x|_}|jD] }||_ dS)z1Update `ignoreErrors` flag on self and all fieldsN)rrrr)rvalue_fields rrzDbfHeader.ignoreErrorss;&*5kk1ek ( (F"'F   ( (rc|jSrB)rrDs rrEzDbfHeader.s T(rzError processing mode for DBF field value conversion if set, failing field value conversion will return ``INVALID_VALUE`` instead of raising conversion error. )doccd}||j|j|j|j|jfz}|dd|jDz }|S)NzVersion (signature): 0x%02x Last update: %s Header length: %d Record length: %d Record count: %d FieldName Type Len Dec  c<g|]}d|zS)z%10s %4s %3s %3s) fieldInfo.0r@s r z&DbfHeader.__repr__..s( K K Kt $.."2"2 2 K K Kr)r r rr rjoinr)r_rvs r__repr__zDbfHeader.__repr__sfT^T_d6G&(8:: tyy K Kt{ K K K    rc>g}d}|D]}t|tjr|}nGt|dzdd\}}}} tj|} | ||| |j}||jz }|||xj|z c_|S)ahInternal variant of the `addField` method. This method doesn't set `self.changed` field to True. Return value is a length of the appended records. Note: this method doesn't modify ``recordLength`` and ``headerLength`` fields. Use `addField` instead of this method if you don't exactly know what you're doing. r)NNNNNr%)r)r.r DbfFieldDeftupler4rlengthappend) rdefs_defs _recordLength_defr>_name_type_len_dec_clss rr5zDbfHeader._addFields   D$ 233 Q.3DkkK.G!-L*tT'..tE4D.s :::d$--//:::rr*FN) r,writernrrVencoder0r1r)rr7rs rrpzDbfHeader.writes A T]]__%%%::dk::: RWWV__++C,E,G,GHHIII W rc tjd|j|jdz |j|j|j|j|jdzS)z4Returned 32 chars length string with encoded header.z<4BI2Hr(s) r2packr rCrGrIrrr rDs rrnzDbfHeader.toStringsM{8>9t+:8+,,..2>? ?rcLtj|_dS)z9Update ``self.lastUpdate`` field with current date value.N)datetimedatetodayr rDs rsetCurrentDatezDbfHeader.setCurrentDates"---//rct|tr<|}|jD]}|j|kr|cSt ||j|S)z9Return a field definition by numeric index or name string)r.rupperrnameKeyError)ritemrbrLs r __getitem__zDbfHeader.__getitem__sj dC %JJLLE+ % %;%''!MMM(tnn$;t$ $r)NrrrrNF)__name__ __module__ __qualname____doc__ __slots__rr" classmethodrpropertyrCrGrIrrXr5rjrprnrxr~rmrrr r s_(MI BCNS&)&)&)&)R888Z((J<Z((J 855 6 6D H77 8 8E (33 4 4C((( 8((    L$@0 ? ? ?000 % % % % %r) rurr2r0rorutilsr __version____date____all__r rmrrrs  B' )!B$ / -n%n%n%n%n%n%n%n%n%n%r