Comments (2)
Hi, I was looking for a way to read a ModTime type field and I came across a description in Harbour's changelog:
https://github.com/harbour/core/blob/master/ChangeLog.txt
; Current field type mappings are: C; Character,n HB_FT_STRING,n ADS_STRING N; Numeric,n,d HB_FT_LONG,n,d ADS_NUMERIC D; Date,n HB_FT_DATE,3 or 4 or 8 ADS_COMPACTDATE; ADS_DATE ShortDate HB_FT_DATE,3 ADS_COMPACTDATE L; Logical HB_FT_LOGICAL,1 ADS_LOGICAL M; Memo,n HB_FT_MEMO,4 or 9 or 8 ADS_MEMO B; Double,,d HB_FT_DOUBLE,8,d ADS_DOUBLE I; Integer,n HB_FT_INTEGER, 2 or 4 or 8 ADS_SHORTINT; ADS_INTEGER; ADS_LONGLONG ShortInt HB_FT_INTEGER,2 ADS_SHORTINT Longlong HB_FT_INTEGER,8 ADS_LONGLONG P; Image HB_FT_IMAGE,9 or 10 ADS_IMAGE W; Binary HB_FT_BLOB,4 or 9 or 10 ADS_BINARY Y; Money HB_FT_CURRENCY,8,4 ADS_MONEY Z; CurDouble,,d HB_FT_CURDOUBLE,8,d ADS_CURDOUBLE T,4; Time HB_FT_TIME,4 ADS_TIME @; T,8; TimeStamp HB_FT_TIMESTAMP,8 ADS_TIMESTAMP +; AutoInc HB_FT_AUTOINC,4 ADS_AUTOINC ^; RowVersion HB_FT_ROWVER,8 ADS_ROWVERSION =; ModTime HB_FT_MODTIME,8 ADS_MODTIME Raw,n HB_FT_STRING,n (+HB_FF_BINARY) ADS_RAW Q; VarChar,n HB_FT_VARLENGTH,n ADS_VARCHAR; ADS_VARCHAR_FOX VarBinary,n HB_FT_VARLENGTH,n (+HB_FF_BINARY) ADS_VARBINARY_FOX; ADS_RAW CICharacter,n HB_FT_STRING,n ADS_CISTRING
Maybe this will be helpful in identifying the field types, Harbor developers encountered the same problem when trying to support different RDDs.
As I understand it, a ModTime field can be read like a TimeStamp field. Can you add mapping:
# Modtime field ('=') parse3D = parseT
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We also need documentation and example files for the different file variants of file formats encountered so far. It's getting increasingly difficult to add support for one file variant without risk of breaking support for another.
Some easier to use ways of overriding default behaviour would also be useful. Currently the only way is to subclass the field parser.
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