go-tg-screenshot-bot

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I like to keep all my code to 80 columns or less. I have plenty of screen real 
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estate, but enjoy 80 columns so that I can have multiple code windows open side 
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to side and not be plagued by the ugly auto-wrapping of a text editor.
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If you don't oblige me, I will fix any patch you submit to abide 80 columns.
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Note that this style restriction does not preclude gofmt, but introduces a few
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peculiarities. The first is that gofmt will occasionally add spacing (typically 
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to comments) that ends up going over 80 columns. Either shorten the comment or 
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put it on its own line.
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The second and more common hiccup is when a function definition extends beyond 
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80 columns. If one adds line breaks to keep it below 80 columns, gofmt will 
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indent all subsequent lines in a function definition to the same indentation 
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level of the function body. This results in a less-than-ideal separation 
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between function definition and function body. To remedy this, simply add a 
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line break like so:
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  func RestackWindowExtra(xu *xgbutil.XUtil, win xproto.Window, stackMode int,
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    sibling xproto.Window, source int) error {
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    return ClientEvent(xu, win, "_NET_RESTACK_WINDOW", source, int(sibling),
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      stackMode)
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  }
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Something similar should also be applied to long 'if' or 'for' conditionals, 
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although it would probably be preferrable to break up the conditional to 
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smaller chunks with a few helper variables.
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