Re: [Wget-dev] wget2 | WIP: Use GNU Indent (!370)

[Tim Rühsen]

Ok, starting with the basics:
- tabs for indentation, spaces for alignment
- line length max. 120 chars (exceptions for readability)
- Unix style linebreaks (just linefeed '\n')
- tab width recommendation: 3 or 4
- single line comments start with //

More rules are tedious to write down, at least nothing that I would like to do.

For contributors we can just formulate a basic set of (non-obvious ?) rules and 
everything else is taken from the surrounding/existing code. We shouldn't be 
too nitpicking to not repel newcomers.
We also have lot's of style exceptions to increase human readability.

So I'm not sure about automatic beautifying yet.

Example code
```
#ifdef A
#       ifdef B
#               include <x.h>
#       endif
#endif

int
        method(const char *s, int i) FUNCTION_ATTRIBUTE;

struct A {
        char
                *s1,
                *s2;
        int
                x;
};

int method(const char *s, int i)
{
        if (i == 1)
                s = "foo"; // default

        switch (i) {
        case 0:
                s = "none";
                break;
        default:
                goto label;
        }

        printf("s=%s\n", s);

label:
        return 0;
}
```

Currently my `.indent_pro` has
```
-linux
-ut
-as
-ntac
-ts4
-ppi2
-nlps
-l120
-ip4
-i4
-il0
-di4
-c0
-cd0
-dj
```

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