diff options
Diffstat (limited to 'spec/lexer.go')
| -rw-r--r-- | spec/lexer.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/spec/lexer.go b/spec/lexer.go index 2be3918..a1bd6fc 100644 --- a/spec/lexer.go +++ b/spec/lexer.go @@ -160,6 +160,9 @@ func (l *lexer) lexAndSkipWSs() (*token, error) { case "kw_fragment": return newSymbolToken(tokenKindKWFragment), nil case "identifier": + if strings.HasPrefix(tok.Text(), "_") { + return nil, synErrAutoGenID + } return newIDToken(tok.Text()), nil case "terminal_open": var b strings.Builder |