X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fregex.h;h=63c2fef6967b2c87a68eeefd79e7abd444d05382;hb=f71e0eda3f943b862c13ffa0c1b13995f8d1fb2c;hp=91a3560678f918357763bf14bfc55cee6c282403;hpb=4aeea603487608a6fbf1d1fbeda0f5772ed6a8c6;p=gnulib.git

diff --git a/lib/regex.h b/lib/regex.h
index 91a356067..63c2fef69 100644
--- a/lib/regex.h
+++ b/lib/regex.h
@@ -160,6 +160,11 @@ typedef unsigned long int reg_syntax_t;
    this bit set, and it won't affect anything in the normal case. */
 #define RE_DEBUG (RE_NO_GNU_OPS << 1)
 
+/* If this bit is set, a syntactically invalid interval is treated as
+   a string of ordinary characters.  For example, the ERE 'a{1' is
+   treated as 'a\{1'.  */
+#define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1)
+
 /* This global variable defines the particular regexp syntax to use (for
    some interfaces).  When a regexp is compiled, the syntax used is
    stored in the pattern buffer, so changing this does not affect
@@ -199,7 +204,8 @@ extern reg_syntax_t re_syntax_options;
    | RE_NO_BK_VBAR)
 
 #define RE_SYNTAX_POSIX_EGREP						\
-  (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES)
+  (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES			\
+   | RE_INVALID_INTERVAL_ORD)
 
 /* P1003.2/D11.2, section 4.20.7.1, lines 5078ff.  */
 #define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC