func parse(in []byte) (*ast.File, error) {
switch lexMode(in) {
case lexModeHcl:
return hclParser.Parse(in)
case lexModeJson:
return jsonParser.Parse(in)
}
return nil, fmt.Errorf("unknown config format")
}
// format parses src, prints the corresponding AST, verifies the resulting
// src is syntactically correct, and returns the resulting src or an error
// if any.
func format(src []byte) ([]byte, error) {
formatted, err := Format(src)
if err != nil {
return nil, err
}
// make sure formatted output is syntactically correct
if _, err := parser.Parse(formatted); err != nil {
return nil, fmt.Errorf("parse: %s\n%s", err, src)
}
return formatted, nil
}
// Format formats src HCL and returns the result.
func Format(src []byte) ([]byte, error) {
node, err := parser.Parse(src)
if err != nil {
return nil, err
}
var buf bytes.Buffer
if err := DefaultConfig.Fprint(&buf, node); err != nil {
return nil, err
}
// Add trailing newline to result
buf.WriteString("\n")
return buf.Bytes(), nil
}