regex: Add comments

2 files changed, 7 insertions, 5 deletions

diff --git a/regcomp.c b/regcomp.c
index b98f72f300..5fdd6e0abb 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -8611,7 +8611,8 @@ tryagain:
 		    else
 			ender = *p++;
 		    break;
-		}
+		} /* End of switch on the literal */
+
 		if ( RExC_flags & RXf_PMf_EXTENDED)
 		    p = regwhite( pRExC_state, p );
 		if (UTF && FOLD) {
@@ -8691,7 +8692,8 @@ tryagain:
 		else
 		    REGC((char)ender, s++);
 	    }
-	loopdone:
+	loopdone:   /* Jumped to when encounters something that shouldn't be in
+		       the node */
 	    RExC_parse = p - 1;
             Set_Node_Cur_Length(ret); /* MJD */
 	    nextchar(pRExC_state);
diff --git a/regexec.c b/regexec.c
index 58fc358ab8..0864a45cf4 100644
--- a/regexec.c
+++ b/regexec.c
@@ -94,9 +94,9 @@
 #define	STATIC	static
 #endif
 
-/* Valid for non-utf8 strings only: avoids the reginclass call if there are no
- * complications: i.e., if everything matchable is straight forward in the
- * bitmap */
+/* Valid for non-utf8 strings, non-ANYOFV nodes only: avoids the reginclass
+ * call if there are no complications: i.e., if everything matchable is
+ * straight forward in the bitmap */
 #define REGINCLASS(prog,p,c)  (ANYOF_FLAGS(p) ? reginclass(prog,p,c,0,0)   \
 					      : ANYOF_BITMAP_TEST(p,*(c)))