U d8@s^dZdddZdddZdgZddlZddlZddlZdd lmZd d l m Z eGd d d Z Gddde Z Gddde Z Gddde ZGddde ZGddde ZGddde ZGddde ZGddde ZGddde ZiZd d!Zd"dZeeD]>\ZZeeereee red kre eeeq[[dS)#z3DBF fields definitions. TODO: - make memos work z$Revision: 1.14 $ z$Date: 2009/05/26 05:16:51 $ lookupForN)total_ordering)utilsc@seZdZdZdZdZdZdZdddZddZ d d Z d d Z d dZ d ddZ ee Z ddZddZddZddZddZddZddZdS)! DbfFieldDefa]Abstract field definition. Child classes must override ``type`` class attribute to provide datatype information of the field definition. For more info about types visit `http://www.clicketyclick.dk/databases/xbase/format/data_types.html` Also child classes must override ``defaultValue`` field to provide default value for the field value. If child class has fixed length ``length`` class attribute must be overridden and set to the valid value. None value means, that field isn't of fixed length. Note: ``name`` field must not be changed after instantiation. )name decimalCountstartend ignoreErrorsNFcCs|jdk std|jdk s$tdt|dkrz|||WStk r8|jr2tjYSYnXdS)z2Return decoded field value from the record string.N) decodeValuer> ExceptionrrZ INVALID_VALUEr<rrrdecodeFromRecords  zDbfFieldDef.decodeFromRecordcCstdS)zReturn decoded value from string value. This method shouldn't be used publicly. It's called from the `decodeFromRecord` method. This is an abstract method and it must be overridden in child classes. NNotImplementedErrorrvaluerrrr?szDbfFieldDef.decodeValuecCstdS)zReturn str object containing encoded field value. This is an abstract method and it must be overridden in child classes. NrBrDrrr encodeValueszDbfFieldDef.encodeValue)NNNNF)F)__name__ __module__ __qualname____doc__ __slots__rrrrr$r%r&r)r2 classmethodr9r;r:r>rAr?rFrrrrr +s.     r c@s(eZdZdZdZdZddZddZdS) DbfCharacterFieldDefz"Definition of the character field.CcCs|ddS)ziReturn string object. Return value is a ``value`` argument with stripped right spaces.  r,)rstripr.rDrrrr?sz DbfCharacterFieldDef.decodeValuecCst|d|j|jS)z0Return raw data string encoded from a ``value``.N)rrr6rDrrrrFsz DbfCharacterFieldDef.encodeValueNrGrHrIrJrrr?rFrrrrrMs rMc@s(eZdZdZdZdZddZddZdS) DbfNumericFieldDefz Definition of the numeric field.NrcCs.|d}d|krt|S|r&t|SdSdS)zReturn a number decoded from ``value``. If decimals is zero, value will be decoded as an integer; or as a float otherwise. Return: Return value is a int (long) or float instance. s .rN)stripfloatrrDrrrr?s zDbfNumericFieldDef.decodeValuecCsnd|j|j|f}t||jkrj|d}d|kr@|jkrTnn|d|j}ntd|j||jf|S)+Return string containing encoded ``value``.z%*.*f.rNz+[%s] Numeric overflow: %s (field width: %i))rr rfindrr )rrE_rvZ_pposrrrrFs  zDbfNumericFieldDef.encodeValueNrRrrrrrSs rSc@seZdZdZdZdS)DbfFloatFieldDefz0Definition of the float field - same as numeric.FN)rGrHrIrJrrrrrr\sr\c@s,eZdZdZdZdZdZddZddZd S) DbfIntegerFieldDefz Definition of the integer field.Ir4rcCstd|dS)z0Return an integer number decoded from ``value``.|dkr dS|dkrdS|dkr$dStd|jd|d S) z0Return True, False or -1 decoded from ``value``.?rmzNnFf FZYyTtT[z] Invalid logical value N)rr rDrrrr?5szDbfLogicalFieldDef.decodeValuecCs|dkr dS|dkrdSdS)zReturn a character from the "TF?" set. Return: Return value is "T" if ``value`` is True "?" if value is -1 or False otherwise. TTrmrnr]rrDrrrrF@s zDbfLogicalFieldDef.encodeValueN rGrHrIrJrrrr?rFrrrrrk.s  rkc@s,eZdZdZdZdZdZddZddZd S) DbfMemoFieldDefz[Definition of the memo field. Note: memos aren't currently completely supported. Mz rcCstdS)zmrOzDbfDateFieldDef.rhcCs|rt|SdSdS)z;Return a ``datetime.date`` instance decoded from ``value``.N)rVrgetDaterDrrrr?qs zDbfDateFieldDef.decodeValuecCs"|rt|dSd|jSdS)zReturn a string-encoded value. ``value`` argument should be a value suitable for the `utils.getDate` call. Return: Return value is a string in format "yyyymmdd". z%Y%m%d N)rr{strftimerrDrrrrFxs zDbfDateFieldDef.encodeValueN) rGrHrIrJrr classpropertyrrr?rFrrrrrtis rtc@s:eZdZdZdZdZeddZdZ ddZ d d Z d S) DbfDateTimeFieldDefz"Definition of the timestamp field.iQDrpcCs tjSr)rvnowryrrrrzrOzDbfDateTimeFieldDef.rhcCsZt||jksttd|\}}|dkrRtj||j}|td|d7}nd}|S)z&Return a `datetime.datetime` instance.<2Irrg@@N) rrrrbrcrv fromordinal JDN_GDN_DIFF timedelta)rrEZ_jdnZ_msecsr[rrrr?szDbfDateTimeFieldDef.decodeValuecCsb|rBt|}td||j|jd|jd|jd}n d|j }t ||j ks^t |S)z"Return a string-encoded ``value``.ri<ir3) rZ getDateTimerbrd toordinalrhourminutesecondrrr)rrEr[rrrrFs  zDbfDateTimeFieldDef.encodeValueN) rGrHrIrJrrrr~rrr?rFrrrrrs rcCs |jdk std|t|j<dS)zRegister field definition class. ``fieldCls`` should be subclass of the `DbfFieldDef`. Use `lookupFor` to retrieve field definition class by the type code. NzType code isn't defined)rr_fieldsRegistry)ZfieldClsrrr registerFields rcCs tt|S)aReturn field definition class for the given type code. ``typeCode`` must be a single character. That type should be previously registered. Use `registerField` to register new field class. Return: Return value is a subclass of the `DbfFieldDef`. )rr7)rrrrrs)!rJ __version____date____all__rvrbsys functoolsrrr rMrSr\r^rfrkrrrtrrrrlistglobalsitemsr8Z_val isinstancetype issubclassappendrrrrs<    +!'