https://github.com/knz/go-fmtfwd

Perfect forwarding for Go printf formatting strings
https://github.com/knz/go-fmtfwd

Last synced: 26 days ago
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Perfect forwarding for Go printf formatting strings

• Host: GitHub
• URL: https://github.com/knz/go-fmtfwd
• Owner: knz
• License: mit
• Created: 2020-10-10T17:39:07.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2020-10-10T17:49:06.000Z (about 4 years ago)
• Last Synced: 2024-06-20T12:25:35.570Z (5 months ago)
• Language: Go
• Size: 2.93 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-fmtfwd

Perfect forwarding for Go printf formatting strings

This library facilitates the implementation of `fmt.Formatter` on

custom types, when there is a need to forward the call

to a default value.

For example:

```go

func (t *T) Format(s fmt.State, verb rune) {

  if s.Flag('#') {

     fmt.Fprint(s, "hello")

  } else {

     _, fmtForward := fmtfwd.MakeFormat(s, verb)

     fmt.Fprintf(s, fmtForward, "world")

  }

}

```

Alternatively, the combination `MakeFormat` + `fmt.Fprintf` call

can be combined as a single call `fmtfwd.ReproducePrintf(s, s, verb,

...)`.

Package documentation here: https://pkg.go.dev/github.com/knz/go-fmtfwd