Extended syntax excluded for lex/posix compat mode.

Comments discarded inside (?x:) patterns.
Added test in test suite for comments in extended patterns.
Documented syntax additions.

2 files changed, 11 insertions, 6 deletions

diff --git a/tests/test-extended/scanner.l b/tests/test-extended/scanner.l
index e027ec5..222c7dd 100644
--- a/tests/test-extended/scanner.l
+++ b/tests/test-extended/scanner.l
@@ -1,20 +1,20 @@
 /*
  * This file is part of flex.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
- * 
+ *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 
+ *
  * Neither the name of the University nor the names of its contributors
  * may be used to endorse or promote products derived from this software
  * without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
@@ -31,7 +31,7 @@
 %}
 
 %option 8bit outfile="scanner.c" prefix="test"
-%option nounput nomain noyywrap 
+%option nounput nomain noyywrap
 %option warn
 
 
@@ -41,7 +41,7 @@
 
 abc(?# Single Line Comment )def    ECHO;
 ghi(?#
-    multi-line 
+    multi-line
     comment
     )jkl                           ECHO;
 
@@ -53,6 +53,10 @@ mno(?#
     )pqr                           ECHO;
 (?# Start of a rule.)stu           ECHO;
 vwxyz(?#End of a rule.)            ECHO;
+A(?x: B
+    /* comment */
+    C D)                           ECHO;
+
 \n                                 ECHO;
 %%
 
diff --git a/tests/test-extended/test.input b/tests/test-extended/test.input
index b0883f3..829e23d 100644
--- a/tests/test-extended/test.input
+++ b/tests/test-extended/test.input
@@ -1 +1,2 @@
 abcdefghijklmnopqrstuvwxyz
+ABCD