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mLipok

RegExp - question - new line between two different start-up lines

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I have this kind of source data:

TEST1   2013-02-08  some text
TEST1   2013-2-08   some text
TEST1   2013-01-15  some text
TEST1   2013-01-15  some text
TEST1   2013-01-03  some text
TEST2   2013-1-17   some text
TEST2   2013-1-18   some text
TEST2   2013-1-21   some text
 
I wondered how using SRE add a new line, but only at the point where the difference in the first word, ie in the present case, separate lines starting with TEST1 from the line starting with TEST2 
 
Can someone give me a hint?

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mLipok,

Why use an SRE - I see no advantage here. Read the file into an array, run through it until you find a changeover point, insert the new line, and then save the new array. ;)

M23


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You light up my mind as a light bulb  :idea:

Thanks.

I just use your idea.

But the question is still interesting for me. 
As someone who has a solution for RegExp I would be grateful.

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"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."

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mLipok,

When I first started learning about SREs, GEOSoft gave me the best piece of advice I ever got concerning them - "learn when not to use them". I now pass the same advice on to you (and anyone else reading). :)

M23

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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 UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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Not so long ago I read the same "golden idea" / anecdote from another member.
 
Just tell me if by this time the idea in your case, turned out to be right.

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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) * 

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 *

"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."

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#6 ·  Posted (edited)

Yes ... absolutely

Why do it simple when it can be complicated ?

$txt = _
"TEST1   2013-02-08  some text" & @crlf & _
"TEST1   2013-2-08   some text" & @crlf & _
"TEST1   2013-01-15  some text" & @crlf & _
"TEST2   2013-01-15  some text" & @crlf & _
"TEST2   2013-01-03  some text" & @crlf & _
"TEST3   2013-1-17   some text" & @crlf & _
"TEST4   2013-1-18   some text" & @crlf & _
"TEST4   2013-1-19   some text" & @crlf & _
"TEST5   2013-1-21   some text"

$txt = StringRegExpReplace($txt, '((?<=\v)(\S+).+\R(?!\2))', '$1' & @crlf )

Msgbox(0,"", $txt)

Melba, read and agreed :)

Edited by mikell
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Super 
Thanks a lot. 
I am grateful.
 
mLipok

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My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

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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) * 

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 *

"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."

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Sweet regular expression.


_AdapterConnections()_AlwaysRun()_AppMon()_AppMonEx()_BinaryBin()_CheckMsgBox()_CmdLineRaw()_ContextMenu()_ConvertLHWebColor()/_ConvertSHWebColor()_DesktopDimensions()_DisplayPassword()_DotNet_Load()/_DotNet_Unload()_Fibonacci()_FileCompare()_FileCompareContents()_FileNameByHandle()_FilePrefix/SRE()_FindInFile()_GetBackgroundColor()/_SetBackgroundColor()_GetConrolID()_GetCtrlClass()_GetDirectoryFormat()_GetDriveMediaType()_GetFilename()/_GetFilenameExt()_GetHardwareID()_GetIP()_GetIP_Country()_GetOSLanguage()_GetSavedSource()_GetStringSize()_GetSystemPaths()_GetURLImage()_GIFImage()_GoogleWeather()_GUICtrlCreateGroup()_GUICtrlListBox_CreateArray()_GUICtrlListView_CreateArray()_GUICtrlListView_SaveCSV()_GUICtrlListView_SaveHTML()_GUICtrlListView_SaveTxt()_GUICtrlListView_SaveXML()_GUICtrlMenu_Recent()_GUICtrlMenu_SetItemImage()_GUICtrlTreeView_CreateArray()_GUIDisable()_GUIImageList_SetIconFromHandle()_GUIRegisterMsg()_GUISetIcon()_Icon_Clear()/_Icon_Set()_IdleTime()_InetGet()_InetGetGUI()_InetGetProgress()_IPDetails()_IsFileOlder()_IsGUID()_IsHex()_IsPalindrome()_IsRegKey()_IsStringRegExp()_IsSystemDrive()_IsUPX()_IsValidType()_IsWebColor()_Language()_Log()_MicrosoftInternetConnectivity()_MSDNDataType()_PathFull/GetRelative/Split()_PathSplitEx()_PrintFromArray()_ProgressSetMarquee()_ReDim()_RockPaperScissors()/_RockPaperScissorsLizardSpock()_ScrollingCredits_SelfDelete()_SelfRename()_SelfUpdate()_SendTo()_ShellAll()_ShellFile()_ShellFolder()_SingletonHWID()_SingletonPID()_Startup()_StringCompact()_StringIsValid()_StringRegExpMetaCharacters()_StringReplaceWholeWord()_StringStripChars()_Temperature()_TrialPeriod()_UKToUSDate()/_USToUKDate()_WinAPI_Create_CTL_CODE()_WinAPI_CreateGUID()_WMIDateStringToDate()/_DateToWMIDateString()Au3 script parsingAutoIt SearchAutoIt3 PortableAutoIt3WrapperToPragmaAutoItWinGetTitle()/AutoItWinSetTitle()CodingDirToHTML5FileInstallrFileReadLastChars()GeoIP databaseGUI - Only Close ButtonGUI ExamplesGUICtrlDeleteImage()GUICtrlGetBkColor()GUICtrlGetStyle()GUIEventsGUIGetBkColor()Int_Parse() & Int_TryParse()IsISBN()LockFile()Mapping CtrlIDsOOP in AutoItParseHeadersToSciTE()PasswordValidPasteBinPosts Per DayPreExpandProtect GlobalsQueue()Resource UpdateResourcesExSciTE JumpSettings INISHELLHOOKShunting-YardSignature CreatorStack()Stopwatch()StringAddLF()/StringStripLF()StringEOLToCRLF()VSCROLLWM_COPYDATAMore Examples...

Updated: 04/09/2015

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A fine adjustment needed.

Because of this "(?<=v)(S+)", the first line will not match because it does not have a preceeding vertical white space. Therefore, when using this post's example's test data, "StringRegExpReplace($txt, '((?<=v)(S+).+R(?!2))', '$1' & @crlf )" would fail to put an extra newline after the first line.
Otherwise it works great.

Local $txt = _
        "TEST1   2013-02-08  some text" & @CRLF & _
        "TEST2   2013-2-08   some text" & @CRLF & _
        "TEST2   2013-01-15  some text" & @CRLF & _
        "TEST2   2013-01-15  some text" & @CRLF & _
        "TEST2   2013-01-03  some text" & @LF & _
        "TEST3   2013-1-17   some text" & @LF & _
        "TEST4   2013-1-18   some text" & @LF & _
        "TEST4   2013-1-19   some text" & @LF & _
        "TEST5   2013-1-21   some text"

;$txt = StringRegExpReplace($txt, '(((?<=\v)\S+)\N+\R(?!\2))',  '$1' & @crlf )
$txt = StringRegExpReplace($txt, '(?m)((^\S+)\V+\R(?!\2))', '$1' & @CRLF)

ConsoleWrite($txt & @LF)

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Thanks for this note

Shame on me, I didn't pay attention to this... yet it was easy :>

$txt = StringRegExpReplace($txt, '((?<=\v|^)(\S+).+\R(?!\2))',  '$1' & @crlf )

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I worked a bit on this and I wanted do a little more complicated task. 
But unfortunately I lost. 
 
Here is What I trying:
Source string is a content copied from XLS.
Column are separated by @TAB. 
First column ie. TEST1 or TEST2 can contain whitechar.
 
 
Local $txt = ''
$txt &= "TEST1   2013-02-08  some text" & @CRLF 
; HERE I want to add new line
$txt &= "TEST 2   2013-2-08   some text" & @CRLF
$txt &= "TEST 2   2013-01-15  some text" & @CRLF
$txt &= "TEST 2   2013-01-15  some text" & @CRLF
$txt &= "TEST 2   2013-01-03  some text" & @LF
; HERE I want to add new line
$txt &= "TEST3   2013-1-17   some text" & @LF
; HERE I want to add new line
$txt &= "TEST4   2013-1-17   some text" & @LF
$txt &= "TEST4   2013-1-18   some text" & @LF
$txt &= "TEST4   2013-1-18   some text" & @LF
; HERE I want to add new line
$txt &= "TEST5   2013-1-21   some text" & @LF
$txt &= "TEST5   2013-1-21   some text" & @CRLF
; HERE I want to add new line
$txt &= "TEST 5   2013-1-21   some text" & @LF

;$txt = StringRegExpReplace($txt, '(((?<=\v)\S+)\N+\R(?!\2))',  '$1' & @crlf )
$txt = StringRegExpReplace($txt, '((?<=\v|^)(\S+).+\R(?!\2))',  '$1' & @crlf )

ConsoleWrite($txt & @LF)

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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 *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

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 * Best coding practices * 

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) * 

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 *

"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."

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#12 ·  Posted (edited)

The correction to do is really a minor one, simple adaptation to new circumstances

Here you only need to match non-tab characters in the first group

Local $txt = ''
$txt &= "TEST1" &@TAB& "2013-02-08" &@TAB& "some text" & @CRLF 
; HERE I want to add new line
$txt &= "TEST 2" &@TAB& "2013-2-08" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-15" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-15" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-03" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST3" &@TAB& "2013-1-17" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST4" &@TAB& "2013-1-17" &@TAB& "some text" & @LF
$txt &= "TEST4" &@TAB& "2013-1-18" &@TAB& "some text" & @LF
$txt &= "TEST4" &@TAB& "2013-1-18" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST5" &@TAB& "2013-1-21" &@TAB& "some text" & @LF
$txt &= "TEST5" &@TAB& "2013-1-21" &@TAB& "some text" & @CRLF
; HERE I want to add new line
$txt &= "TEST 5" &@TAB& "2013-1-21" &@TAB& "some text" 

$txt = StringRegExpReplace($txt, '((?<=\v|^)([^\t]+).+\R(?!\2))', '$1' & @crlf )
Msgbox(0,"", $txt)

Or this using Malkey's code

$txt = StringRegExpReplace($txt, '(?m)((^[^\t]+)\V+\R(?!\2))', '$1' & @CRLF)
Edited by mikell

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mikell,

Well done. :thumbsup:

It seems I was once again too pessimistic about the capabilities of RegExes. But if you add in the time it would have taken me to develop a pattern like that (close to the known age of the universe I expect ;)) using an SRE would have taken longer for me than my initial suggestion! :D

M23


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The correction to do is really a minor one, simple adaptation to new circumstances

Here you only need to match non-tab characters in the first group

Local $txt = ''
$txt &= "TEST1" &@TAB& "2013-02-08" &@TAB& "some text" & @CRLF 
; HERE I want to add new line
$txt &= "TEST 2" &@TAB& "2013-2-08" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-15" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-15" &@TAB& "some text" & @CRLF
$txt &= "TEST 2" &@TAB& "2013-01-03" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST3" &@TAB& "2013-1-17" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST4" &@TAB& "2013-1-17" &@TAB& "some text" & @LF
$txt &= "TEST4" &@TAB& "2013-1-18" &@TAB& "some text" & @LF
$txt &= "TEST4" &@TAB& "2013-1-18" &@TAB& "some text" & @LF
; HERE I want to add new line
$txt &= "TEST5" &@TAB& "2013-1-21" &@TAB& "some text" & @LF
$txt &= "TEST5" &@TAB& "2013-1-21" &@TAB& "some text" & @CRLF
; HERE I want to add new line
$txt &= "TEST 5" &@TAB& "2013-1-21" &@TAB& "some text" 

$txt = StringRegExpReplace($txt, '((?<=\v|^)([^\t]+).+\R(?!\2))', '$1' & @crlf )
Msgbox(0,"", $txt)

Or this using Malkey's code

$txt = StringRegExpReplace($txt, '(?m)((^[^\t]+)\V+\R(?!\2))', '$1' & @CRLF)

 

Thanks

I try tonight

mikell,

Well done. :thumbsup:

It seems I was once again too pessimistic about the capabilities of RegExes. But if you add in the time it would have taken me to develop a pattern like that (close to the known age of the universe I expect ;)) using an SRE would have taken longer for me than my initial suggestion! :D

M23

 

I will try to do tonight benchmarking performance.


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#15 ·  Posted (edited)

But if you add in the time it would have taken me to develop a pattern like that (close to the known age of the universe I expect ;)) using an SRE would have taken longer for me than my initial suggestion! :D

M23

 

Melba,

Really too pessimistic about yourself !

Although you precisely described the purpose of this forum, didn't you ? :)

Edited by mikell

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Another fine adjustment needed.

When the test data has a trailing linefeed as in mLipok's example of post #11, another additional linefeed is added. So "|z"is added to the RE pattern to stop the additional trailing linefeed being added to the output.

Local $txt = ''
$txt &= "TEST1"  & @TAB & "2013-02-08" & @TAB & "some text" & @CRLF
; HERE I want to add new line
$txt &= "TEST 2" & @TAB & "2013-2-08" & @TAB & "some text" & @CRLF
$txt &= "TEST 2" & @TAB & "2013-01-15" & @TAB & "some text" & @CRLF
$txt &= "TEST 2" & @TAB & "2013-01-15" & @TAB & "some text" & @CRLF
$txt &= "TEST 2" & @TAB & "2013-01-03" & @TAB & "some text" & @LF
; HERE I want to add new line
$txt &= "TEST3"  & @TAB & "2013-1-17" & @TAB & "some text" & @LF
; HERE I want to add new line
$txt &= "TEST4"  & @TAB & "2013-1-17" & @TAB & "some text" & @LF
$txt &= "TEST4"  & @TAB & "2013-1-18" & @TAB & "some text" & @LF
$txt &= "TEST4"  & @TAB & "2013-1-18" & @TAB & "some text" & @LF
; HERE I want to add new line
$txt &= "TEST5"  & @TAB & "2013-1-21" & @TAB & "some text" & @LF
$txt &= "TEST5"  & @TAB & "2013-1-21" & @TAB & "some text" & @CRLF
; HERE I want to add new line
$txt &= "TEST 5" & @TAB & "2013-1-21" & @TAB & "some text" & @LF

;$txt = StringRegExpReplace($txt, '((?<=\v|^)([^\t]+).+\R(?!\2))', '$1' & @crlf )    ; mikell's original
;$txt = StringRegExpReplace($txt, '((?<=\v|^)([^\t]+).+\R(?!\2|\z))', '$1' & @crlf ) ;  mikell's corrected for trailing @LF.
$txt = StringRegExpReplace($txt, '(?m)((^[^\t]+)\V+\R(?!\2|\z))', '$1' & @CRLF)      ; Malkey's corrected for trailing @LF.

ConsoleWrite($txt & @LF)

 

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Nicely noticed

This reminds me of a discussion I read somewhere about _FileCountLines and the existence of an EOF blank line :)

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Exactly the same issue.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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