Capital letters in struct field names

[riwarek]

Lets assume we have such struct:
type Products struct {
Gtin string json:"gtin,omitempty"
Name Lang json:"name,omitempty"
}

From somwhere i recieve such template:
{{gtin}} blah {{name}}

And now, because I have no impact on this template and my structure fields MUST be public (golang to make it public use capital letters in names) I have inconsistency gtin<->Gtin.
As a result only "blah" will be shown.
Is it possible to add some "ignore capitalisation" switch?
Otherwise I have to make some initial parsing which seems to be usless effort (and has impact on performance).

[cbroglie]

The capitalization behavior is part of the Go language specification so there is no magic switch to add, but you can certainly use encoding/json to convert to JSON and then back to a map: https://goplay.space/#Yz-AVJrRifR.

[riwarek]

I use something like this:

var (
	reg = regexp.MustCompile(`{{[^\w]?\w+}}`) //any word closed into {{}} with possible leading sign
)

func CapitalizeTemplate(template string) string {
	return reg.ReplaceAllStringFunc(template, func(t string) string {
		return strings.Title(t)
	})
}

This is preatty short solution and shouldn't take too long to write it , anyway it would be just handful for user to have some built-in method to do this. Just a proposition.