* match.c (match_line): Bugfix in double var. Do not

prepend the next_pat to the specline if it is nil.

1 files changed, 4 insertions, 2 deletions

diff --git a/match.c b/match.c
index 01d96bf5..81d7df95 100644
--- a/match.c
+++ b/match.c
@@ -433,8 +433,10 @@ static val match_line(val bindings, val specline, val dataline,
               pos = fpos;
               LOG_MATCH("double var regex (second var)", plus(fpos, flen));
               pos = plus(fpos, flen);
-              specline = cons(next_pat, rest(specline));
-              continue;
+              if (next_pat) {
+                specline = cons(next_pat, rest(specline));
+                continue;
+              }
             } else if (!pair) {
               sem_error(spec_lineno, lit("consecutive unbound variables"), nao);
             } else {