Allow inversion of no-xxx flags.

[eode]

Sometimes, as with line numbering in my case, i want line numbering off by default, but to add it when needed.

Turning it off by default is simple enough, but turning it back on isn't easily apparent.

What I'd like:

• accept xxxx versions of all no-xxxx flags
• last argument wins

So that if moar is aliased to, for example, moar -no-linenumbers, then it's simple enough to just type moar -linenumbers and get linenumbers -- though the underlying command moar is receiving is moar -no-linenumbers -linenumbers

I think this is an elegant solution because:

• it doesn't interfere with any defaults or user expectations
• it is a common enough design pattern to be easily intuited

Thanks for making the world moar nice. Before if found this program, I had less.

[walles]

As a workaround (not a fix), pressing <- (left arrow key) when inside of moar will get you line numbers.

Obvious to me because I wrote it, not sure how obvious it is for anybody else :).

[walles]

Even if I agree your request makes sense, AFAICT flag from the standard library (which is what I'm using for command line parsing) doesn't support what you're after.

And adding a separate -linenumbers option wouldn't work either, because flag hides from me the order in which the command line arguments showed up.

So it seems this would involve quite some work, including replacing the command line parser.

How do you feel about the press-left-arrow-key solution / workaround?

[walles]

Another (not super great) workaround is to specify --no-linenumbers=false.

[eode]

Ah, yeah.. I know the 'underlying lib doesn't support this' problem. :-)

It's not such an issue that I'd do a rework to change an underlying lib if it were my tool. Switching line numbers on and off with the hotkey works well enough for me.

As far as I'm concerned, you can close this.