DeleteLn or equivilant

[Dominic_Fichera]

Hey everyone,

Is there a code which will remove a line of text from a file the way that WriteLn adds text to a file?

I know I can create a file like this:

Code: Select all

WriteLn>C:\Users\%USER_NAME%\Desktop\test.txt,nWLNRes,Line 1
WriteLn>C:\Users\%USER_NAME%\Desktop\test.txt,nWLNRes,Line 2
WriteLn>C:\Users\%USER_NAME%\Desktop\test.txt,nWLNRes,Line 3
WriteLn>C:\Users\%USER_NAME%\Desktop\test.txt,nWLNRes,Line 4
WriteLn>C:\Users\%USER_NAME%\Desktop\test.txt,nWLNRes,Line 5

I can read a specific line like this:

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ReadLn>C:\Users\%USER_NAME%\Desktop\test.txt,2,varLine
MessageModal>varLine

How would I say "I want to remove line 2 and leave everything else"?

Thank you in advance,

Dominic Fichera

[Marcus Tettmar]

You can't remove lines from text files. What you have to do is loop through, write all lines OTHER than the ones you want "deleted" to a new file. At the end you can delete the source file, and rename the new file to the source file. End result is what you want.

Potentially you could also read everything in with ReadFile in one go, then use RegEx or other string parsing to remove the line(s), then write back .. Either to a new file and then do the delete/rename, or delete source and then write to source.

Example pseudocode:

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ReadFile>sourcefile,text

//do string manipulation or loop to remove lines here 

DeleteFile>sourcefile
WriteLn>sourcefile,res,text

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