AlliedModders - [Solved] Add character in existing line

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Add character in existing line

I'm trying to add a character in front of an existing string, and then replace the old line inside the file with the new edited one.

For example:

Current:

PHP Code:


		
			
"Rabbit"

Edited:

PHP Code:


		
			
;"Rabbit"

Any idea?

Re: Add character in existing line

It's not very hard:
1.Create a temporary file.
2.Open the original file and read line by line.
3.Write all lines from the original file to the temporary file exactly how they are, except the desired line, which you edit and then write.
4.Delete the original file.
5.Rename the temporary file to the original name.

Re: Add character in existing line

Quote:

Originally Posted by HamletEagle (Post 2610141)

I'm aware of that already, but isn't there another way?

Re: Add character in existing line

Quote:

Originally Posted by edon1337 (Post 2610142)

I'm aware of that already, but isn't there another way?

No, that's how files work, they are streams, it's not AMXX's thing.

Re: Add character in existing line

Quote:

Originally Posted by KliPPy (Post 2610143)

No, that's how files work, they are streams, it's not AMXX's thing.

Delete the line and write a new one at it's place?

Re: Add character in existing line

Quote:

Originally Posted by edon1337 (Post 2610144)

Delete the line and write a new one at it's place?

It doesn't work that way. It will only work provided the the new and old lines have the same length. As I said, files are streams, they can only be appended to or overwritten, you can't insert in the middle or delete content.

Re: Add character in existing line

Quote:

Originally Posted by KliPPy (Post 2610145)

Ah, I see. I'll use this then, thanks https://forums.alliedmods.net/showpo...56&postcount=5

Re: Add character in existing line

There's a problem though, even with that stock, how am I supposed to add a character at the start of the text? If I replace " with ;" it will be like this

PHP Code:


		
			
;"Donii;"

Meanwhile it should be like this

PHP Code:


		
			
;"Donii"

Re: Add character in existing line

Quote:

Originally Posted by edon1337 (Post 2610147)

There's a problem though, even with that stock, how am I supposed to add a character at the start of the text? If I replace " with ;" it will be like this

PHP Code:


		
			
;"Donii;"

Meanwhile it should be like this

PHP Code:


		
			
;"Donii"

That's basic string manipulation, nothing to do with files.
1.Shift all cell's content one position to the right and then overwrite the first one.
2.Use formatex in another string, like formatex(..., ..., ";%s", Line).
3.Use strcat.

Re: Add character in existing line

Quote:

Originally Posted by HamletEagle (Post 2610148)

I totally forgot about formatex :oops:

Is NewLine[] purposely not used or you just forgot?

PHP Code:


		
			
stock RemoveLine(const FileName[], const OldLine[], const NewLine[])

{

    new const TempFileName[] = "tempfile.ini"



    new ConfigDirPath[128]; get_configsdir(ConfigDirPath, charsmax(ConfigDirPath))

    new FullPath[256]; formatex(FullPath, charsmax(FullPath), "%s/%s", ConfigDirPath, FileName)



    new FilePointer = fopen(FullPath, "rt")

    if(FilePointer)

    {

        new TempFilePath[256]; formatex(TempFilePath, charsmax(TempFilePath), "%s/%s", ConfigDirPath, TempFileName)

        

        new InputFilePointer = fopen(TempFilePath, "wt")

        if(InputFilePointer)

        {

            new FileData[128]

            while(!feof(FilePointer))

            {

                fgets(FilePointer, FileData, charsmax(FileData))

                trim(FileData)

                

                if(equal(FileData, OldLine))

                {

                    continue

                }

                fprintf(InputFilePointer, "%s^n", FileData)

            }

            

            fclose(InputFilePointer)

            fclose(FilePointer)



            delete_file(FullPath)

            rename_file(TempFilePath, FullPath, 1)

            

            return 1

        }

    }

    return 0

}