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x/tools/gopls: show hover information for runes #38239

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stamblerre opened this issue Apr 3, 2020 · 0 comments
Open

x/tools/gopls: show hover information for runes #38239

stamblerre opened this issue Apr 3, 2020 · 0 comments

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@stamblerre
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@stamblerre stamblerre commented Apr 3, 2020

From microsoft/vscode-go#3149:

In Go, runes can be expressed as single-quoted readable glyphs, single-quoted escaped \u codes, or number literals (usually hex). It’s often hard to know what a particular rune is, short of extensive commenting as in this example.

It would be very helpful in VSCode to hover over any of these forms to get info on the rune, such as:

  • visual glyph (if any)
  • description e.g. “ARABIC THOUSANDS SEPARATOR”
  • \u representation
  • hex representation

Thanks for the consideration, happy to discuss.

This can be implemented using https://pkg.go.dev/golang.org/x/text/unicode/runenames.

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