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E1M1

Why doesnt regex match script tag?

6 posts in this topic

Hello

I am trying to remove script from html file.

Sofar I've managed to come up with this:

StringRegExpReplace($data,"(<script.*?>.*?</script>)","")

I also tried:

StringRegExpReplace($data,"(<script(\s|.*?)>(\s|\n|.*?)</script>)","")

but it doesnt really remove script tag. That tag contains multi line script.

Does anyone know know what how to write right regex pattern for this job?


edited

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Well this works, but I'm sure a guru will drop by soon.

Local $sData = 'Something' & @CRLF & @TAB & '<script>' & @CRLF & @TAB & @TAB & '...Blah, Blah, Blah' & @CRLF & @TAB & '</script>'
; ConsoleWrite($sData & @CRLF) ; Debug.
ConsoleWrite(StringRegExpReplace($sData, '(?s)<script[^>]*>.*</script>', '') & @CRLF)

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Updated: 04/09/2015

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#3 ·  Posted (edited)

And it also remove html that I need....

Local $sData = 'Something' & @CRLF & @TAB & '<script>' & @CRLF & @TAB & @TAB & '...Blah, Blah, Blah' & @CRLF & @TAB & '</script>'&@CRLF&' useful html is here <script></script> and an other useful text'
; ConsoleWrite($sData & @CRLF) ; Debug.
ConsoleWrite(StringRegExpReplace($sData, '(?s)<script[^>]*>.*</script>', '') & @CRLF)

outputs:

Something
and an other useful text

but no " useful html is here"

Edit: I figured ? was missin from .*.It should be (?s)<script[^>]*>.*?</script> o at least that helped me. an other problem is that it seems to mess up encoding. like i get squares instead of äöüõ

Edited by E1M1

edited

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#4 ·  Posted (edited)

OK, well next time post input and expected output.

Edit: I'm not in a position to help at present.

Edited by guinness

_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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Edit: I figured ? was missin from .*.It should be (?s)<script[^>]*>.*?</script> o at least that helped me. an other problem is that it seems to mess up encoding. like i get squares instead of äöüõ

The ? inverts greediness of the * quantifier. Normally * is very hungry and will eat everything up until the very last </script>. The ? puts it on a diet and tells it to stop a the very first occurence.

ConsoleWrite outputs eveything as ANSI, so that's why you get squares.


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Thank you for this explanation.


edited

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