Default behavior, no prefix? or maybe a flag to use an empty prefix?

[mturley]

Currently in your master branch, the progress bar always begins with "Progress : ". In my fork, I added an optional third argument to change that word Progress to something else, but it still always prints the " : ".

I think it might be nice to have the option to make the progress bar render with no prefix at all-- the [ character right at the beginning of the line. My disk usage use case doesn't really need anything ahead of the progress bar since earlier in the message I give more precise numbers and make it clear what the bar is for.

We could add another flag --no-prefix or something, or if we don't mind it being a breaking change, the simpler solution could be that my optional prefix argument no longer defaults to "Progress", and you have to include the colon in that. so to get the current behavior you'd need to invoke ProgressBar 50 100 "Progress : ".

--no-prefix works for me if you don't want a breaking change (of course, you don't have to merge my fork, but I'd like to maintain it in a form you would want to use, so we can share code :)

[mturley]

If this, #3 and #4 all get implemented (I'll probably do them in my fork when I get bored), my ProgressBar command and desired output would look something like this:

ProgressBar 3910538828 16569411248 --precision 4 --no-prefix --newline

Prints: \n[#########-------------------------------] 23.6009%

[mturley]

We should maybe add some abstraction for variable command line arguments. Would be nice to have that third argument remain optional, which i guess just means checking to see if $3 has a -- in it or not.

Also, sorry for sending you a ton of github notifications! I just took your repo and ran with it. Had some thoughts and figured I'd put them in the upstream. When I say "we" I mean "I, with your code". Feel free to help but please don't take my messages as asking you to.