39 lines
494 B
Go
39 lines
494 B
Go
|
package hcl
|
||
|
|
|
||
|
|
import (
|
||
|
|
"unicode"
|
||
|
|
"unicode/utf8"
|
||
|
|
)
|
||
|
|
|
||
|
|
type lexModeValue byte
|
||
|
|
|
||
|
|
const (
|
||
|
|
lexModeUnknown lexModeValue = iota
|
||
|
|
lexModeHcl
|
||
|
|
lexModeJson
|
||
|
|
)
|
||
|
|
|
||
|
|
// lexMode returns whether we're going to be parsing in JSON
|
||
|
|
// mode or HCL mode.
|
||
|
|
func lexMode(v []byte) lexModeValue {
|
||
|
|
var (
|
||
|
|
r rune
|
||
|
|
w int
|
||
|
|
offset int
|
||
|
|
)
|
||
|
|
|
||
|
|
for {
|
||
|
|
r, w = utf8.DecodeRune(v[offset:])
|
||
|
|
offset += w
|
||
|
|
if unicode.IsSpace(r) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if r == '{' {
|
||
|
|
return lexModeJson
|
||
|
|
}
|
||
|
|
break
|
||
|
|
}
|
||
|
|
|
||
|
|
return lexModeHcl
|
||
|
|
}
|