gtsocial-umbx

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lex.go (494B)

      1 package hcl
      2 
      3 import (
      4 	"unicode"
      5 	"unicode/utf8"
      6 )
      7 
      8 type lexModeValue byte
      9 
     10 const (
     11 	lexModeUnknown lexModeValue = iota
     12 	lexModeHcl
     13 	lexModeJson
     14 )
     15 
     16 // lexMode returns whether we're going to be parsing in JSON
     17 // mode or HCL mode.
     18 func lexMode(v []byte) lexModeValue {
     19 	var (
     20 		r      rune
     21 		w      int
     22 		offset int
     23 	)
     24 
     25 	for {
     26 		r, w = utf8.DecodeRune(v[offset:])
     27 		offset += w
     28 		if unicode.IsSpace(r) {
     29 			continue
     30 		}
     31 		if r == '{' {
     32 			return lexModeJson
     33 		}
     34 		break
     35 	}
     36 
     37 	return lexModeHcl
     38 }