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Xbase I/O - transfer data between dbf file and array

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By RTFC,
in AutoIt Example Scripts

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RTFC Universalist

RTFC

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This is basically two functions (plus supporting infrastructure):

_Xbase_ReadToArray($filename, Byref $array, [...])

_Xbase_WriteFromArray($filename, Byref $array, [...])

that transfer all data from one container to the other. Various optional formatting parameters are detailed in the Remarks section of the script; a small test script plus dbf test file (the latter from the (free) Harbour distribution, see here) are provided for your entertainment. Note that the $array variable has to exist already, as it's parsed ByRef, but it does not have to have the correct dimensions.

This is pure AutoIt (no SQL, no ADO, no dlls, no external dependencies).

The Xbase specification was gleaned from here.

There is no support (either currently or planned) for a GUI, or additional functionality; it's just a simple data interface I needed for my MatrixFileConverter for Eigen4Autoit (link in signature), that might be of use to others (see MatrixFileConverter.au3 for an implementation example).

One thing to keep in mind is AutoIt's array size limitation (16 MB elements); Xbase files can be considerably larger. On the other hand, AutoIt arrays are less restricted in their number of columns than (certain versions of) Xbase (see script for details). Appropriate error messages will inform you when you've hit these buffers.

Xbase.v0.8.7z third beta release

Edited by RTFC

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BitMaskSudokuSolver  BuildPartitionTable   CodeCrypter   CodeScanner   DigitalDisplay   Eigen4AutoIt   FAT Suite    HighMem   MetaCodeFileLibrary   OSgrid   Pool   RdRand   SecondDesktop   SimulatedAnnealing   Xbase I/O

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kaisies Prodigy

kaisies

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AMAZING THANK YOU.  I am working with a dBaseIII struct files that I cannot change, but all I needed to do was read them.  This does EXACTLY THAT PERFECTLY.  Been googling all day for some sample code that could at least get me started, and this does that and more!!!

:thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:  :thumbsup:

Edited by kaisies
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RTFC Universalist

RTFC

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Sorry, Idub, memo fields are not supported at this time (I've never used them myself, and won't be adding them here). My main purpose in writing these functions was to facilitate import/export of large numeric datasets. Anything else they can do is just extra. Unfortunately, memo fields are not part of this package. There are however other dbase/Xbase-based example scripts to be found on this forum, using ADO, SQL/ite or external dll (although >the dll-based script didn't support memo fields either, last time I checked). Perhaps you'll have better luck with one of those.

Sorry I can't help you.

My Contributions and Wrappers

Spoiler

BitMaskSudokuSolver  BuildPartitionTable   CodeCrypter   CodeScanner   DigitalDisplay   Eigen4AutoIt   FAT Suite    HighMem   MetaCodeFileLibrary   OSgrid   Pool   RdRand   SecondDesktop   SimulatedAnnealing   Xbase I/O

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RTFC Universalist

RTFC

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Beta version 0.8 released.:closedeyes:

Bug fix: trailing spaces padding in character fields.

My Contributions and Wrappers

Spoiler

BitMaskSudokuSolver  BuildPartitionTable   CodeCrypter   CodeScanner   DigitalDisplay   Eigen4AutoIt   FAT Suite    HighMem   MetaCodeFileLibrary   OSgrid   Pool   RdRand   SecondDesktop   SimulatedAnnealing   Xbase I/O

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mLipok Universalist

mLipok

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Could you please upload your UDF here:

https://www.autoitscript.com/forum/files/category/8-databases-and-web-connections/

 

Signature beginning:
* Please remember: "AutoIt"..... *  Wondering who uses AutoIt and what it can be used for ? * Forum Rules *
* ADO.au3 UDF * POP3.au3 UDF * XML.au3 UDF * IE on Windows 11 * How to ask ChatGPT for AutoIt Code * for other useful stuff click the following button:

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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API * ErrorLog.au3 UDF - A logging Library * Include Dependency Tree (Tool for analyzing script relations) * Show_Macro_Values.au3 *

 

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF * SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane * 

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: * Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskScheduler * IE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related: * How to get reference to PDF object embeded in IE * IE on Windows 11 * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuff * OnHungApp handler * Avoid "AutoIt Error" message box in unknown errors  * HTML editor * 

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2023-04-24

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mLipok Universalist

mLipok

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I just added your UDF to AutoIt Wiki here:
https://www.autoitscript.com/wiki/User_Defined_Functions#Databases_and_web_connections

 

Signature beginning:
* Please remember: "AutoIt"..... *  Wondering who uses AutoIt and what it can be used for ? * Forum Rules *
* ADO.au3 UDF * POP3.au3 UDF * XML.au3 UDF * IE on Windows 11 * How to ask ChatGPT for AutoIt Code * for other useful stuff click the following button:

Spoiler

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API * ErrorLog.au3 UDF - A logging Library * Include Dependency Tree (Tool for analyzing script relations) * Show_Macro_Values.au3 *

 

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 UDF * ADO.au3 UDF * SMTP Mailer UDF * Dual Monitor resolution detection * * 2GUI on Dual Monitor System * _SciLexer.au3 UDF * SciTE - Lexer for console pane * 

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: * Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Good coding practices in AutoIt * 

OpenOffice/LibreOffice/XLS Related: WriterDemo.au3 * XLS/MDB from scratch with ADOX

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * IE in TaskScheduler * IE Embedded Control Versioning (use IE9+ and HTML5 in a GUI) * PDF Related: * How to get reference to PDF object embeded in IE * IE on Windows 11 * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

I also encourage you to check awesome @trancexx code:  * Create COM objects from modules without any demand on user to register anything. * Another COM object registering stuff * OnHungApp handler * Avoid "AutoIt Error" message box in unknown errors  * HTML editor * 

winhttp.au3 related : * https://www.autoitscript.com/forum/topic/206771-winhttpau3-download-problem-youre-speaking-plain-http-to-an-ssl-enabled-server-port/

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2023-04-24

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