[gentoo-user] Paste into vim keeping indention or original?

[Mark Knecht <markknecht@gmail.com>]

What is the solution to begin able to paste code I find on the web
into a file in vim and being able to keep the indentation from
changing?

For instance, here's the first few lines of code from a web page:

#define ARRAYSIZE(x)  (sizeof(x)/sizeof(*(x)))

int main(void)
{
   const char filename[] = "file.csv";
   /*
    * Open the file.
    */

The indentation on the code from const down is consistently 3 spaces:


Pasted into vi:

#define ARRAYSIZE(x)  (sizeof(x)/sizeof(*(x)))

int main(void)
{
   const char filename[] = "file.csv";
      /*
          * Open the file.
              */

In this case const is correct, but the next line is 6 spaces, then 9
spaces, then 12 spaces.

If it matters, I'm using KDE using Konsole, but I've seen this in
other WMs. I looked at the Tab settings in my Konsole profile but
nothing seems to matter.

Thanks,
Mark