fixup REG_ANCHORED: the checks have to be in shortest()

I put them into longest() as well, but it appears that both find() and cfind()
will always try shortest() first and should abort if that returns NULL.

1 files changed, 12 insertions, 0 deletions

diff --git a/rege_dfa.c b/rege_dfa.c
index 9764c33..a9686b1 100644
--- a/rege_dfa.c
+++ b/rege_dfa.c
@@ -97,6 +97,9 @@ longest(
 		    break;	/* NOTE BREAK OUT */
 		}
 	    }
+	    if (ss->flags & NOPROGRESS && v->eflags & REG_ANCHORED) {
+		return NULL;
+	    }
 	    cp = nextchr(v, cp);
 	    ss->lastseen = cp;
 	    css = ss;
@@ -112,6 +115,9 @@ longest(
 		    break;	/* NOTE BREAK OUT */
 		}
 	    }
+	    if (ss->flags & NOPROGRESS && v->eflags & REG_ANCHORED) {
+		return NULL;
+	    }
 	    cp = nextchr(v, cp);
 	    ss->lastseen = cp;
 	    css = ss;
@@ -230,6 +236,9 @@ shortest(
 		    break;	/* NOTE BREAK OUT */
 		}
 	    }
+	    if (ss->flags & NOPROGRESS && v->eflags & REG_ANCHORED) {
+		return NULL;
+	    }
 	    cp = nextchr(v, cp);
 	    ss->lastseen = cp;
 	    css = ss;
@@ -248,6 +257,9 @@ shortest(
 		    break;	/* NOTE BREAK OUT */
 		}
 	    }
+	    if (ss->flags & NOPROGRESS && v->eflags & REG_ANCHORED) {
+		return NULL;
+	    }
 	    cp = nextchr(v, cp);
 	    ss->lastseen = cp;
 	    css = ss;