Sync dfa.c with grep.

2 files changed, 19 insertions, 24 deletions

diff --git a/ChangeLog b/ChangeLog
index 5dc79045..fdb550a7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-12-10         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* dfa.c: Sync with GNU grep.
+
 2014-11-26         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* builtin.c (do_sub): Improve wording of gensub warnings.
diff --git a/dfa.c b/dfa.c
index 66136ce2..2ea37b52 100644
--- a/dfa.c
+++ b/dfa.c
@@ -3496,13 +3496,23 @@ dfaexec_main (struct dfa *d, char const *begin, char *end,
             }
         }
 
-      if ((char *) p > end)
+      if (s < 0)
         {
-          p = NULL;
-          goto done;
+          if ((char *) p > end || p[-1] != eol || d->newlines[s1] < 0)
+            {
+              p = NULL;
+              goto done;
+            }
+
+          /* The previous character was a newline, count it, and skip
+             checking of multibyte character boundary until here.  */
+          nlcount++;
+          mbp = p;
+
+          s = allow_nl ? d->newlines[s1] : 0;
         }
 
-      if (s >= 0 && d->fails[s])
+      if (d->fails[s])
         {
           if (d->success[s] & sbit[*p])
             {
@@ -3516,32 +3526,13 @@ dfaexec_main (struct dfa *d, char const *begin, char *end,
             State_transition();
           else
             s = d->fails[s][*p++];
-          continue;
-        }
-
-      /* If the previous character was a newline, count it, and skip
-         checking of multibyte character boundary until here.  */
-      if (p[-1] == eol)
-        {
-          nlcount++;
-          mbp = p;
         }
-
-      if (s >= 0)
+      else
         {
           if (!d->trans[s])
             build_state (s, d);
           trans = d->trans;
-          continue;
         }
-
-      if (p[-1] == eol && allow_nl)
-        {
-          s = d->newlines[s1];
-          continue;
-        }
-
-      s = 0;
     }
 
  done: