5 posts in this topic
Junior Programmer here...
Not much experience with opening, changing and closing files.
I am trying to replace strings in a Text file except StringReplace does not actually replace the text.
Here is a sample of my code...
#include <File.au3> #include <MsgBoxConstants.au3> #include <WinAPIFiles.au3> Local $iStrReturn = 0 Local $hFile Local $sText Local $sNewText ; Location of File to be read $sFileName = "C:\Temp\MyPlayer.exe.config" ; The default is FALSE. We want to change this to TRUE $bLoopChecked = True CheckBox() Func Checkbox() $hFile = FileOpen($sFileName,$FO_READ) ; Open file in read mode to get text If $hFile = -1 Then MsgBox($MB_SYSTEMMODAL, "", "An error occurred when Opening the file.") Exit EndIf FileSetPos($hFile, 0, 0) ; No idea if I need to do this, grasping at straws $sText = FileRead($hFile) ; Read the file into $sText If $sText = 1 Then MsgBox($MB_SYSTEMMODAL, "", "An error occurred when reading/writing the file.") Exit Else FileClose($hFile) ; Finished reading the file into $sText, so close the file. FileFlush($hFile) ; Manual says to use FileFlush between File Close and Open so here it is EndIf MsgBox(0,"Before Replacement",$sText) ; Displays the text read from the file to make sure something is there. ; Loop Check If $bLoopChecked = True Then ; Find the string return > 0 for success $iStrReturn = StringInStr('"<add key="LoopCheckbox" value=""False" />"', "False") ;MsgBox(0,"", "LoopCheckBox is " & $iStrReturn) If $iStrReturn > 0 Then ; If StringInStr returned > 0 the it found the string! ; The Meat of the code. This is where we have to replace "False" with "True" $sNewText = StringReplace($sText, '"<add key="LoopCheckbox" value="False" />"', '"<add key="LoopCheckbox" value="True" />"') MsgBox(0,"After Replacement",$sNewText) ; Display the text to see if it worked. $hFile = FileOpen($sFileName,$FO_OVERWRITE) ; Reopen the file to write to it, overwriting everything. FileWrite($hFile,$sNewText) ; Write the text to the file FileClose($hFile) ; Close the file EndIf EndIf EndFunc This is the file I am reading...
<?xml version="1.0" encoding="utf-8"?> <configuration> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6"/> </startup> <appSettings> <add key="LoopCheckbox" value="false"/> </appSettings> </configuration> I tried opening the file with $FO_UTF8 and $FO_UTF8_NOBOM but got errors opening the file.
The MsgBox "After Replacement" shows the value is still false.
I have a script whose sole purpose is to walk through about 15,000 - 20,000 files in a single directory structure, making modifications to 5 or 6 lines within each file. Simple. I have a small splash screen that is simply counting how many files have been completed out of the overall total. The script is functioning fine and the splash screams through the initial files, but through time begins to slow to a crawl (It becomes noticeable after about 1,000 to 1,500 files).
I have used a combination of methods to write to the file, but none of which appear to make much of any difference:
Local $FileOpen = FileOpen($FileInList,1) FileWriteLine($FileOpen,@CRLF) FileClose($FileOpen) OR
FileWriteLine($FileHandle, $NewLineString & @CRLF) OR
Local $FileHandle = FileOpen($FileInList,2) _FileWriteFromArray($FileHandle,$FileContentArray,1) FileClose($FileHandle) I have checked and the CPU and memory are fine. My current work-around is to create 5-10 separate directory structures from the original one that contains 20,000 files, run the script and then combine them again in the end. It works, but isn't very portable. Any ideas?
I have a good handle on how to read a file line by line, and search for a given string.
Basically using, FileOpen, FileReadLine, and StringInStr.
I have been trying to figure out why my search keeps coming back with no match.
For example, if my string line was "Where is Waldy", and I was searching for Waldy that comes back fine.
But in my file, Let's say it is
Where is "Waldy"
So i read that line in and do a search for Waldy, but i comes back with no match since there is quotes around it.
Is there a way to resolve this?
Here is my actual example
The line comes back like this
I'm searching for LineDisp_iSC480, but its coming back with no match due to the quotes.
Thanks in advance, James
This doesn't work, it deletes (overwrites) file contents:
$hFile = FileOpen("file.txt", 2) $content1 = FileRead($hFile) $content2 = StringReplace($content1, "old", "new") FileWrite($hFile, $content2) FileClose($hFile) Why? Instead, I have to use this workaround:
$hFile = FileOpen("file.txt") $content1 = FileRead($hFile) $content2 = StringReplace($content1, "old", "new") FileClose($hFile) $hFile = FileOpen("file.txt",2) FileWrite($hFile, $content2) FileClose($hFile) That's it, opening, closing and reopening the file.
Function reference says: FileWrite. "Write text/data to the end of a previously opened file." (Does it mean "append"?).
Remarks: "The file must be opened in write mode or the FileWrite() command will fail."
But what write mode? $FO_APPEND (1) = Write mode (append to end of file). $FO_OVERWRITE (2) = Write mode (erase previous contents).
I've been scouring the forum for something that works... and no dice yet... hoping to stop the frustration - hope someone in the forum knows what to do.
Basically, I've saved .msg files out of MS Outlook and want to scan each on for email addresses but all I get with fileopen and fileread are symbols... ran through every iteration.
I've seen people do some soft of binary extract and binarytostring but I haven't gotten that to work either... not sure what's going on.
Neither of these have worked for me... yes I know they are old and FileOpen has changed... but like I said I tried everything that I know of.
$sFile = "C:\temp\messages\Test.msg" $hFile = FileOpen($sFile, 16) ; 16 = binary $binData = FileRead($hFile, 1024) ; read first 1KB FileClose($hFile) ConsoleWrite("Debug: First 1KB = " & $binData & @LF) or...
$sFile = "C:\temp\messages\Test.msg" $hFile = FileOpen($sFile, 16) $binData = FileRead($hFile, 20480) FileClose($hFile) $startdef=StringTrimLeft(Binary('thetextIamlookingfor'), 20) $enddef=StringTrimLeft(Binary('moretextIamlookingfor'), 20) $binData=StringTrimLeft($binData, StringInStr($binData, $startdef)+StringLen($startdef)-1) $binData=StringLeft($binData, StringInStr($binData, $enddef)-1) ConsoleWrite(BinaryToString('0x'&$binData) & @LF) Thanks!