U yag8@sRddlZddlZddlmZddlmZdddZdd dZd gZeGd d d Z Gd dde Z Gddde Z Gddde Z Gddde Z Gddde ZGddde ZGddde ZGddde ZGddde ZiZdd Zd!d ZeeD]>\ZZeeer eee r ed kr eeeeq [[dS)"N)total_ordering)utilsz$Revision: 1.14 $ z$Date: 2009/05/26 05:16:51 $ lookupForc@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.decodeValuecCsxd|j|j|f}t||jkrt|d}d|kr@|jkrTnn|d|j}n td|jd|d|jd|S) +Return string containing encoded ``value``.z%*.*f.rN[z] Numeric overflow: z (field width: ))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``.?rozNnFf FZYyTtTrZz] Invalid logical value N)rr rDrrrr?6szDbfLogicalFieldDef.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. TTrorpr_rrDrrrrFAs zDbfLogicalFieldDef.encodeValueN rGrHrIrJrrrr?rFrrrrrm/s  rmc@s,eZdZdZdZdZdZddZddZd S) DbfMemoFieldDefz[Definition of the memo field. Note: memos aren't currently completely supported. Mz rcCstdS)znrOzDbfDateFieldDef.rjcCs|rt|SdSdS)z;Return a ``datetime.date`` instance decoded from ``value``.N)rVrgetDaterDrrrr?rs 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|strftimerrDrrrrFys zDbfDateFieldDef.encodeValueN) rGrHrIrJrr classpropertyrrr?rFrrrrrujs ruc@s:eZdZdZdZdZeddZdZ ddZ d d Z d S) DbfDateTimeFieldDefz"Definition of the timestamp field.iQDrqcCs tjSr)rwnowrzrrrr{rOzDbfDateTimeFieldDef.rjcCsZt||jksttd|\}}|dkrRtj||j}|td|d7}nd}|S)z&Return a `datetime.datetime` instance.<2Irrg@@N) rrrrdrerw 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 getDateTimerdrf toordinalrhourminutesecondrrr)rrEr]rrrrFs  zDbfDateTimeFieldDef.encodeValueN) rGrHrIrJrrrrrrr?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)rwrd functoolsrr __version____date____all__r rMrSr^r`rhrmrsrurrrrlistglobalsitemsr8Z_val isinstancetype issubclassappendrrrrs8    !,!'