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orbs

can @extended be a string?

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orbs

is it possible to set @extended to return a string (or any other data type, for that matter)?

currently i'm using a ByRef to return an "extended" string value, but using the native @extended will make it much more convenient.

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orbs

It is quite trivial to test.

and test it i did; however since the results suggest only a "no" as an answer, i thought it worth asking in case i miss some configuration that need to be changed. 

 

NOPE!

thanks for the straightforwardness!

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czardas

It appears to be an internal conversion from string to integer. So if your string is "21" then you will get 21, but if it is a word, then the conversion produces 0. The extended value was never intended to be used with strings.

Edited by czardas

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guinness

There is a trac request for this to happen, as some native functions fo return a string.


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Updated: 22/04/2018

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czardas

I don't really see a reason to return a string if a number suffices. Other than having to reference the meaning of an extended value, there is no further inconvenience. There are many possible ways to create multiple return values. For consistancy, perhaps error values ought to have the same functionality as extended values - as is the case right now. Integers certainly suffice, but it's obviously not up to me.

Edited by czardas

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water

The ticket Guinness is talking about is #2793.


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jchd

Since at least one built-in function is using the ability to place a string in @extended I'd say it should be a feature open to user code as well. And once @extended is allowed to hold Int32 and String variants why not raise the limitation and allow any datatype there?

Edited by jchd

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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.

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guinness

I agree, though probably numbers and strings are suffice.


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Updated: 22/04/2018

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czardas

I don't see why numbers are not suffice. If a string extended value has been used, it signals another great overhaul. I am mostly concerned about consistancy and performance. Could the extended string return value not be made to fit with the overall consistancy which already exists? jchd has a point too, but it seems to me to be opening Pandora's box for no reason that I can imagine. You can already return an array with as much variety of data as you wish, modify variables ByRef etc... Please explain the advantage to me.

Edited by czardas

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jchd

guinness,

Maybe, but why more code to check the datatype and create another error condition to check with a problematic treatment?

Func a()
    ; ... blah
    If $somecondition Then SetError(3, $something, 0)   ; how to easily report that $something is a forbidden datatype?
EndFunc

Of course it would be ugly to set @extended to some huge Map or even a significantly large array (assuming arrays could be allowed as well) but then is that really a problem? Everybody is free to misuse the language and code things that hurt common sense.

czardas,

It isn't opening a can of worms, just offering a simple possibility in legitimate cases where the feature makes sense. In fact, ability to return any variable could even make the core, SetError() and SetExtended() simpler for not having to convert what is passed to these functions to the domain @extended currently has its limited range.


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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czardas

czardas,

 

It isn't opening a can of worms, just offering a simple possibility in legitimate cases where the feature makes sense. In fact, ability to return any variable could even make the core, SetError() and SetExtended() simpler for not having to convert what is passed to these functions to the domain @extended currently has its limited range.

 

If it involves less internal checks then maybe it's less of a problem to modify - I suppose. It's certainly not an essential change. The question I have is: would it show any advantage over the multiple alternatives which are already part of the language? If so, then I consider it a good idea. If not, then I think it's a waste of time.

Edited by czardas

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jchd

It can be pretty useful for not having to wrap [return, extended] in an array, then copy back return (at least) in another variable. Suppose Return is a large object: since we don't have references, you'd have to deep copy this large object twice for no good reason, just wasting cycles.


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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JohnOne

It's less user coding I suppose but beyond that I do not see much of a gain.

It's quite simple to emulate.
 

Global $Extended, $Error

_Func()

MsgBox(0,$Error,$Extended)

Func _Func()
    _SetError("hello", "World")
EndFunc

Func _SetError($err = "", $ext = "")
    $Error = $err
    $Extended = $ext
EndFunc
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jchd

That means too many global variables of scarce use. I wouldn't recommend that in a medium-size project. Also I never said it's a gain, per se. It's just more flexibility at little cost (my guess) for limited use.

Thinking again at it and since ther is at least one function returning a string, my bet is that the core code is already processing a variant. If that's the case only SetError and SetExtended need raising their limit.

Edited by jchd

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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guinness

#include "Constants.au3" there's hundreds in there.

Not the same thing I'm afraid.


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_AdapterConnections()_AlwaysRun()_AppMon()_AppMonEx()_ArrayFilter/_ArrayReduce_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: 22/04/2018

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