Jump to content
Sign in to follow this  

Regexp Replace LF with CRLF if line on has an LF

Recommended Posts


I'm having trouble with this regex.

I need to take a string that I'm StdOutRead ing from the output of plink.exe:

$PID1 = Run(@ComSpec & " /c " & 'plink.exe ' & $server & ' -v -l ' & $un & ' -pw ' & $pw & ' ' & $app & ' ' & $from & ' ' & $to & ' bps ' & $refnum , "", @SW_HIDE,$STDIN_CHILD + $STDERR_MERGED)
    local $line, $text
    While 1
        $line = StdoutRead($PID1)           ;read contents of STDOUT into $line
        if @error Then ExitLoop             ;if read fails, its the end of the list
        $text &= $line
        $text = StringRegExpReplace($text,"\H\n$",@CRLF)

If a line of the results has an LF at the end i need to replace it with a CRLF

if it has a CRLF i do nothing.

Simple right, not for some of us apparently.

i tried this:

$temp = StringRegExpReplace($text,"(H)n$",'$1' & @CRLF)    FAIL

i tried this:

$text = StringRegExpReplace($text,"Hn$",@CRLF)  

works on some most lines, not on some and truncates the last char on a few lines.


I wonder how many clock tower gunmen got their start with an regex problem they couldn't figure out?

Share this post

Link to post
Share on other sites

Here's more details to help:

the plink session is running a shell script on a linux box.

the below file is variable $text saved out to a file on my windows box using file write.


Edited by gruntydatsun

Share this post

Link to post
Share on other sites

Yeah, that will replace vertical tab too Chr(11). I'm not exactly sure which characters are in this group. Nice example though. :)

Edited by czardas

Share this post

Link to post
Share on other sites

thanks for the help.

you can see which whitespace characters are in the data file by opening it in notepad++ and select view > show symbol > show all characters

Share this post

Link to post
Share on other sites

Check the beta it discusses what is including.

UDF List:

_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

Share this post

Link to post
Share on other sites


I have been using this pattern to force @CRLF line endings for some time:

$sText = StringRegExpReplace($sText, "((?<!\x0d)\x0a|\x0d(?!\x0a))", @CRLF)
It looks for (@LF not preceded by @CR) or (@CR not followed by @LF) and replaces them with @CRLF. :)


Public_Domain.png.2d871819fcb9957cf44f4514551a2935.png Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______Open Open spoiler to see my UDFs:


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


Share this post

Link to post
Share on other sites

You rather be cautious with lone LFs and regexps: release AutoIt used lone LF as the default newline convention, but beta (which will be released anytime soon) now uses a wider setting (*ANYCRLF).

If you expect your code to work correctly with both versions, you have to be precise about what you want replaced. BTW, you ought to always be as restrictive as possible in your patterns.

Here you aim at any LF not precedeed by a CR; that seems to specify exactly what you want to select. So why not translate that verbatim with a look-behind?

LF is "n" and looking behind for a CR is "(?<!r)n".

EDIT: Melba has a turbojet keyboard.

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)

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this