Function to escape and unscape string

[nadashin]

fmt.Printf has a format specifier, %q that escapes string with Go
syntax and add quotes around the string. ( %#v also does it)

But it doesn't have one that unescapes a string.

I couldn't find any stdlib function that escape and unescape a string
following Go syntax. (and doesn't add quotes around the string)

[nadashin]

> I couldn't find any stdlib function that escape and unescape a string
> following Go syntax. (and doesn't add quotes around the string)

If the stdlib doesn't have such functions I am proposing to add them.

[Jan Mercl]

Maybe https://pkg.go.dev/strconv#Unquote is what you want.

[nadashin]

> > fmt.Printf has a format specifier, %q that escapes string with Go
> > syntax and add quotes around the string. ( %#v also does it)
> >
> > But it doesn't have one that unescapes a string.
> >
> > I couldn't find any stdlib function that escape and unescape a string
> > following Go syntax. (and doesn't add quotes around the string)
>
> Maybe https://pkg.go.dev/strconv#Unquote is what you want.

No, that's not what I am looking for.

[jake...@gmail.com]

https://pkg.go.dev/strconv#Unquote seems to be what you are describing. Perhaps you could explain how it fails to do what you want. Maybe a playground example?

[Christopher Puschmann]

Hi,

have you tried fmt.Sscanf? https://play.golang.org/p/Ebr9VcobOcE

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[tapi...@gmail.com]

This is a known problem: https://github.com/golang/go/issues/8618

I looks the root cause is reflect.TypeOf and ValueOf make the values

referenced by the arguments escape, though often this is over-cautious.

[jake...@gmail.com]

On Sunday, September 5, 2021 at 12:56:07 AM UTC-4 tapi...@gmail.com wrote:

This is a known problem: https://github.com/golang/go/issues/8618

I looks the root cause is reflect.TypeOf and ValueOf make the values

referenced by the arguments escape, though often this is over-cautious.

I think you misunderstood the problem. The question  has to do with character escaping in strings, not memory escaping to the heap.

Of course we don't actually know what the problem the OP is having with escaping strings, because the original post is vague.