sirkon / caddycfg Goto Github PK

It turned out we need more control on arguments, see an example:

goproxy {
    *                       goproxy https://something.org/repos
    github.com/*            direct
    gitlab.stageoffice.ru/* storage A
}

the second column (goproxy, direct, storage) can only consists of these three words, everything else is prohibited. We must control it on parsing and once something else was found must report an exact position of the mistake.

The idea is to introduce special interface

type ArgumentParser interface {
    AppendArgument(arg string) error
    Arguments() []string
}

AppendArgument is to be used for argument consumption. Returned error will cause parsing error pointing to token location.

Let we have the following config:

A 1 2 3 {
    a 1
}
B a b c {
    a 1
}

Let we have the following structure

type destStruct struct {
    caddycfg.Args
    A int
}

Then the variable

var dest map[string]destStruct

should be perfectly fine for parsing given config into. But it gives an error now.