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_StringIsValid()

Started by guinness , Sep 08 2010 10:43 PM

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7 replies to this topic

#1 guinness

guinness

MVPs
10,433 posts

Posted 08 September 2010 - 10:43 PM

_StringIsValid() is simple function which checks a string for any of the pre-defined invalid characters. If the string contains none of the invalid characters then it returns True, else it will return False if the string contains any single invalid character. There are similar functions on the forum but they require some knowledge of regular expressions, for example in this function you can define a backslash (\) without having to do the double-backslash (\\) which is how to escape a backslash in a regular expression.

Function:

; #FUNCTION# ====================================================================================================================
; Name ..........: _StringIsValid
; Description ...: Checks whether a string contains a set of characters and is valid.
; Syntax ........: _StringIsValid($sString[, $sPattern = '\/|:<>"'])
; Parameters ....: $sString             - A string.
;                  $sPattern            - [optional] A pattern of characters that shouldn't be present. Default is '\/|:<>"'.
; Return values .: Success: True
;                  Failure: False
; Author ........: guinness
; Example .......: Yes
; ===============================================================================================================================
Func _StringIsValid($sString, $sPattern = '\/|:<>"')
    $sPattern = StringReplace($sPattern, '\E', 'E\')
    $sPattern = StringReplace($sPattern, '\Q', 'Q\')
    Return StringRegExp($sString, '[\Q' & $sPattern & '\E]') = 0
EndFunc   ;==>_StringIsValid

Example use of Function:

#include <Constants.au3>

Example()

Func Example()
    ConsoleWrite('String is ... ' & _StringIsValid('This is a simple string which will be valid!') & @CRLF) ; Returns True, using pre-defined characters.
    ConsoleWrite('String is ... ' & _StringIsValid('<This is a simple string which will be invalid!>') & @CRLF) ; Returns False, using pre-defined characters.
    ConsoleWrite('String is ... ' & _StringIsValid('<This is a simple string which will be valid!>', '|\') & @CRLF) ; Returns True, because we defined the invalid characters of | & \

    If _StringIsValid('This is a simple string which will be valid!') Then
        MsgBox($MB_SYSTEMMODAL, '', 'The string is valid.')
    Else
        MsgBox($MB_SYSTEMMODAL, '', 'The string is not valid.')
    EndIf

    If _StringIsValid("This is a simple string which won:t be valid!") Then
        MsgBox($MB_SYSTEMMODAL, '', 'The string is valid.')
    Else
        MsgBox($MB_SYSTEMMODAL, '', 'The string is not valid.')
    EndIf
EndFunc   ;==>Example

Example 2: This Returns an @error Value. Thanks to user supersonic.

Edited by guinness, 04 April 2013 - 07:34 AM.

Example List: _AdapterConnections() • _AlwaysRun() • _AppMon() • _AppMonEx() • _BinaryBin() • _CheckMsgBox() • _CmdLineRaw() • _ContextMenu() • _DesktopDimensions() • _DisplayPassword() • _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() • _GUISetIcon() • _Icon_Clear()/_Icon_Set() • _InetGet() • _InetGetGUI() • _InetGetProgress() • _IPDetails() • _IsFileOlder() • _IsGUID() • _IsHex() • _IsPalindrome() • _IsRegKey() • _IsStringRegExp() • _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() • _StringIsValid() • _StringReplaceWholeWord() • _StringStripChar() • _Temperature() • _TrialPeriod() • _UKToUSDate()/_USToUKDate() • _WinAPI_CreateGUID() • _WMIDateStringToDate()/_DateToWMIDateString() • AutoIt Search • AutoIt3 Portable • AutoItWinGetTitle()/AutoItWinSetTitle() • Coding • FileInstallr • GeoIP database • GUI - Only Close Button • GUI Examples • GUICtrlDeleteImage() • GUICtrlGetBkColor() • GUICtrlGetStyle() • GUIGetBkColor() • LockFile() • PasteBin • SciTE Jump • Signature Creator • WM_COPYDATA • More Examples...Updated: 11/04/2013

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#2 wakillon

Tiny Tools Coder

Active Members
2,483 posts

Posted 15 September 2010 - 09:06 AM

It seems to work well !
thanks ! Posted Image

• AutoIt Version : 3.3.8.1/3.3.9.4 SciTE 3.3.0 Language:040C OS:WIN_7/ CPU:X64 OS:X64

[Music] [2012-04-07] TinyChartsJukebox • [2012-07-28] TinyMp3Player • [2012-10-07] Mp3SearchEngine [2013-04-04] TinyMp3Downloader • [2012-11-05] TinyShoutCastTuner • [2012-11-01] BeepSongEditor

[Upload] [2011-12-31] TinyFreeUploader • [2012-07-13] TinyPicCaptureUploader

[Script Tools] [2012-10-03] SciTE Hopper • [2013-04-10] AutoIt&SciTEUpdater • [2012-12-21] TinyColorCatcher [2012-07-13] RegJumper • [2013-05-17] BinaryToAu3Kompressor • [2012-06-06] TinyAu3FilesSearch

[Utilities] [2012-06-30] GetCommandLineParameters • [2011-12-21] TinyBackupBox • [2010-09-25] TinyBatteryBar [2011-12-05] TinyBrightnessControler • [2012-09-03] TinyUninstaller • [2012-07-01] TinyClipToSpeech • [2013-05-21] InternetShortcutCreator

[Diverse] [2013-03-06] AnimatedSplash • [2013-01-18] GuiCtrlPicButton Simulate Reaction • [2012-04-15] CanYouRunIt

• Last updated Scripts and executables with full embedded files are available on : GoogleCode

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#3 Dav1d

Seeker

Active Members
6 posts

Posted 15 September 2010 - 11:48 AM

Handy for those being too lazy learning regular expressions themself

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#4 guinness

guinness

MVPs
10,433 posts

Posted 15 September 2010 - 03:56 PM

Handy for those being too lazy learning regular expressions themself

This was my intention!

Edited by guinness, 13 March 2012 - 10:12 PM.

Example List: _AdapterConnections() • _AlwaysRun() • _AppMon() • _AppMonEx() • _BinaryBin() • _CheckMsgBox() • _CmdLineRaw() • _ContextMenu() • _DesktopDimensions() • _DisplayPassword() • _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() • _GUISetIcon() • _Icon_Clear()/_Icon_Set() • _InetGet() • _InetGetGUI() • _InetGetProgress() • _IPDetails() • _IsFileOlder() • _IsGUID() • _IsHex() • _IsPalindrome() • _IsRegKey() • _IsStringRegExp() • _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() • _StringIsValid() • _StringReplaceWholeWord() • _StringStripChar() • _Temperature() • _TrialPeriod() • _UKToUSDate()/_USToUKDate() • _WinAPI_CreateGUID() • _WMIDateStringToDate()/_DateToWMIDateString() • AutoIt Search • AutoIt3 Portable • AutoItWinGetTitle()/AutoItWinSetTitle() • Coding • FileInstallr • GeoIP database • GUI - Only Close Button • GUI Examples • GUICtrlDeleteImage() • GUICtrlGetBkColor() • GUICtrlGetStyle() • GUIGetBkColor() • LockFile() • PasteBin • SciTE Jump • Signature Creator • WM_COPYDATA • More Examples...Updated: 11/04/2013

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#5 supersonic

Universalist

Active Members
448 posts

Posted 17 September 2010 - 02:19 PM

Hi,

nice UDF.

I modified it to return @error in addition:

Func _StringIsValid($sString, $sPattern = '\/:*?"<>|')
    $sPattern = StringRegExpReplace($sPattern, "\\E", "E\")
    Local $iResult = BitAND(Not StringRegExp($sString, '[\Q' & $sPattern & '\E]'), 1)
    Return SetError(Not $iResult, 0, $iResult)
EndFunc