Merge changes I0af6a8c1,Ia77fd91e,Ib26b3167,Ic6e7afd9,I58752686 am: 90a033c688

am: d44aa8b9cc

Change-Id: I2e1420e1d966413a10cac0aaa347e816a98a2b40

14 files changed, 4302 insertions, 106 deletions

diff --git a/.gitignore b/.gitignore
index f8c3dfca..c458c0bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 # locally generated
 Config
-static-syms.h
 config.*
 *.o
 *.a
diff --git a/Android.bp b/Android.bp
index a8e21e3c..1772e8eb 100644
--- a/Android.bp
+++ b/Android.bp
@@ -43,5 +43,7 @@ cc_defaults {
         "-DHAVE_TYPE_SSIZE_T",
         "-DHAVE_UNISTD_H",
         "-DHAVE_UTIME_H",
+
+        "-DNO_SHARED_LIBS",
     ],
 }
diff --git a/ip/Android.bp b/ip/Android.bp
index 1b6ca1f7..a6e533eb 100644
--- a/ip/Android.bp
+++ b/ip/Android.bp
@@ -2,47 +2,67 @@ cc_binary {
     name: "ip",
     defaults: ["iproute2_defaults"],
 
+    // ordering affects link order, so cannot be quite fully sorted
     srcs: [
-        "ip.c",
+        "ip6tunnel.c",
         "ipaddress.c",
         "ipaddrlabel.c",
-        "iproute.c",
-        "iprule.c",
-        "ipnetns.c",
-        "rtm_map.c",
-        "iptunnel.c",
-        "ip6tunnel.c",
-        "tunnel.c",
-        "ipneigh.c",
-        "ipntable.c",
+        "ip.c",
+        "ipfou.c",
+        "ipila.c",
+        "ipl2tp.c",
+        "iplink_bridge.c",
+        "iplink_bridge_slave.c",
         "iplink.c",
+        "iplink_can.c",
+        "iplink_dummy.c",
+        "iplink_geneve.c",
+        "iplink_hsr.c",
+        "iplink_ifb.c",
+        "iplink_ipoib.c",
+        "iplink_ipvlan.c",
+        "iplink_macvlan.c",
+        "iplink_nlmon.c",
+        "iplink_team.c",
+        "iplink_vcan.c",
+        "iplink_vlan.c",
+        "iplink_vrf.c",
+        "iplink_vxcan.c",
+        "iplink_vxlan.c",
+        "iplink_xdp.c",
+        "iplink_xstats.c",
+        "ipmacsec.c",
         "ipmaddr.c",
         "ipmonitor.c",
         "ipmroute.c",
+        "ipneigh.c",
+        "ipnetconf.c",
+        "ipnetns.c",
+        "ipntable.c",
         "ipprefix.c",
+        "iproute.c",
+        "iproute_lwtunnel.c",
+        "iprule.c",
+        "ipseg6.c",
+        "iptoken.c",
+        "iptunnel.c",
         "iptuntap.c",
+        "ipvrf.c",
         "ipxfrm.c",
-        "xfrm_state.c",
-        "xfrm_policy.c",
-        "xfrm_monitor.c",
-        "iplink_vlan.c",
-        "link_veth.c",
+        "link_gre6.c",
         "link_gre.c",
-        "iplink_can.c",
-        "iplink_macvlan.c",
-        "ipl2tp.c",
-        "ipfou.c",
-        "iptoken.c",
+        "link_ip6tnl.c",
+        "link_iptnl.c",
+        "link_veth.c",
+        "link_vti6.c",
+        "link_vti.c",
+        "rtm_map.c",
+        "static-syms.c",
         "tcp_metrics.c",
-        "ipnetconf.c",
-        "iproute_lwtunnel.c",
-        "iplink_xdp.c",
-        "iplink_vrf.c",
-        "iplink_xstats.c",
-        "ipila.c",
-        "ipmacsec.c",
-        "ipseg6.c",
-        "ipvrf.c",
+        "tunnel.c",
+        "xfrm_monitor.c",
+        "xfrm_policy.c",
+        "xfrm_state.c",
     ],
 
     shared_libs: [
diff --git a/ip/ip.c b/ip/ip.c
index c0eae95e..e2da46dd 100644
--- a/ip/ip.c
+++ b/ip/ip.c
@@ -119,7 +119,6 @@ static int do_cmd(const char *argv0, int argc, char **argv)
 	return EXIT_FAILURE;
 }
 
-#ifndef ANDROID
 static int batch(const char *name)
 {
 	char *line = NULL;
@@ -168,15 +167,12 @@ static int batch(const char *name)
 	rtnl_close(&rth);
 	return ret;
 }
-#endif
 
 
 int main(int argc, char **argv)
 {
 	char *basename;
-#ifndef ANDROID
 	char *batch_file = NULL;
-#endif
 
 	basename = strrchr(argv[0], '/');
 	if (basename == NULL)
@@ -254,14 +250,12 @@ int main(int argc, char **argv)
 			exit(0);
 		} else if (matches(opt, "-force") == 0) {
 			++force;
-#ifndef ANDROID
 		} else if (matches(opt, "-batch") == 0) {
 			argc--;
 			argv++;
 			if (argc <= 1)
 				usage();
 			batch_file = argv[1];
-#endif
 		} else if (matches(opt, "-brief") == 0) {
 			++brief;
 		} else if (matches(opt, "-json") == 0) {
@@ -303,10 +297,8 @@ int main(int argc, char **argv)
 	if (json)
 		check_if_color_enabled();
 
-#ifndef ANDROID
 	if (batch_file)
 		return batch(batch_file);
-#endif
 
 	if (rtnl_open(&rth, 0) < 0)
 		exit(1);
diff --git a/ip/static-syms.h b/ip/static-syms.h
new file mode 100644
index 00000000..2ff0c18a
--- /dev/null
+++ b/ip/static-syms.h
@@ -0,0 +1,34 @@
+extern char ipvlan_link_util[] __attribute__((weak)); if (!strcmp(sym, "ipvlan_link_util")) return ipvlan_link_util;
+extern char can_link_util[] __attribute__((weak)); if (!strcmp(sym, "can_link_util")) return can_link_util;
+extern char team_link_util[] __attribute__((weak)); if (!strcmp(sym, "team_link_util")) return team_link_util;
+extern char team_slave_link_util[] __attribute__((weak)); if (!strcmp(sym, "team_slave_link_util")) return team_slave_link_util;
+extern char macvlan_link_util[] __attribute__((weak)); if (!strcmp(sym, "macvlan_link_util")) return macvlan_link_util;
+extern char macvtap_link_util[] __attribute__((weak)); if (!strcmp(sym, "macvtap_link_util")) return macvtap_link_util;
+extern char vti_link_util[] __attribute__((weak)); if (!strcmp(sym, "vti_link_util")) return vti_link_util;
+extern char vcan_link_util[] __attribute__((weak)); if (!strcmp(sym, "vcan_link_util")) return vcan_link_util;
+extern char ifb_link_util[] __attribute__((weak)); if (!strcmp(sym, "ifb_link_util")) return ifb_link_util;
+extern char ipoib_link_util[] __attribute__((weak)); if (!strcmp(sym, "ipoib_link_util")) return ipoib_link_util;
+extern char bond_slave_link_util[] __attribute__((weak)); if (!strcmp(sym, "bond_slave_link_util")) return bond_slave_link_util;
+extern char vxlan_link_util[] __attribute__((weak)); if (!strcmp(sym, "vxlan_link_util")) return vxlan_link_util;
+extern char ip6gre_link_util[] __attribute__((weak)); if (!strcmp(sym, "ip6gre_link_util")) return ip6gre_link_util;
+extern char ip6gretap_link_util[] __attribute__((weak)); if (!strcmp(sym, "ip6gretap_link_util")) return ip6gretap_link_util;
+extern char nlmon_link_util[] __attribute__((weak)); if (!strcmp(sym, "nlmon_link_util")) return nlmon_link_util;
+extern char geneve_link_util[] __attribute__((weak)); if (!strcmp(sym, "geneve_link_util")) return geneve_link_util;
+extern char vrf_link_util[] __attribute__((weak)); if (!strcmp(sym, "vrf_link_util")) return vrf_link_util;
+extern char vrf_slave_link_util[] __attribute__((weak)); if (!strcmp(sym, "vrf_slave_link_util")) return vrf_slave_link_util;
+extern char vlan_link_util[] __attribute__((weak)); if (!strcmp(sym, "vlan_link_util")) return vlan_link_util;
+extern char dummy_link_util[] __attribute__((weak)); if (!strcmp(sym, "dummy_link_util")) return dummy_link_util;
+extern char hsr_link_util[] __attribute__((weak)); if (!strcmp(sym, "hsr_link_util")) return hsr_link_util;
+extern char veth_link_util[] __attribute__((weak)); if (!strcmp(sym, "veth_link_util")) return veth_link_util;
+extern char macsec_link_util[] __attribute__((weak)); if (!strcmp(sym, "macsec_link_util")) return macsec_link_util;
+extern char ipip_link_util[] __attribute__((weak)); if (!strcmp(sym, "ipip_link_util")) return ipip_link_util;
+extern char sit_link_util[] __attribute__((weak)); if (!strcmp(sym, "sit_link_util")) return sit_link_util;
+extern char bond_link_util[] __attribute__((weak)); if (!strcmp(sym, "bond_link_util")) return bond_link_util;
+extern char vti6_link_util[] __attribute__((weak)); if (!strcmp(sym, "vti6_link_util")) return vti6_link_util;
+extern char bridge_link_util[] __attribute__((weak)); if (!strcmp(sym, "bridge_link_util")) return bridge_link_util;
+extern char gre_link_util[] __attribute__((weak)); if (!strcmp(sym, "gre_link_util")) return gre_link_util;
+extern char gretap_link_util[] __attribute__((weak)); if (!strcmp(sym, "gretap_link_util")) return gretap_link_util;
+extern char erspan_link_util[] __attribute__((weak)); if (!strcmp(sym, "erspan_link_util")) return erspan_link_util;
+extern char ip6tnl_link_util[] __attribute__((weak)); if (!strcmp(sym, "ip6tnl_link_util")) return ip6tnl_link_util;
+extern char vxcan_link_util[] __attribute__((weak)); if (!strcmp(sym, "vxcan_link_util")) return vxcan_link_util;
+extern char bridge_slave_link_util[] __attribute__((weak)); if (!strcmp(sym, "bridge_slave_link_util")) return bridge_slave_link_util;
diff --git a/tc/.gitignore b/tc/.gitignore
index e8e86c97..3cd54789 100644
--- a/tc/.gitignore
+++ b/tc/.gitignore
@@ -1,5 +1 @@
-*.yacc.c
-*.lex.c
-*.output
-*.yacc.h
 tc
diff --git a/tc/Android.bp b/tc/Android.bp
index a87da516..b2f6a1f8 100644
--- a/tc/Android.bp
+++ b/tc/Android.bp
@@ -2,26 +2,76 @@ cc_binary {
     name: "tc",
     defaults: ["iproute2_defaults"],
 
+    // ordering affects link order, so cannot be quite fully sorted
     srcs: [
-        "tc.c",
-        "tc_exec.c",
-        "tc_qdisc.c",
+        "emp_ematch.lex.c",
+        "emp_ematch.yacc.c",
+        "m_action.c",
+        "m_bpf.c",
+        "m_connmark.c",
+        "m_csum.c",
+        "m_ematch.c",
+        "m_estimator.c",
+        "m_gact.c",
+        "m_ife.c",
+        "m_mirred.c",
+        "m_pedit.c",
+        "m_police.c",
+        "m_sample.c",
+        "m_simple.c",
+        "m_skbedit.c",
+        "m_skbmod.c",
+        "m_tunnel_key.c",
+        "m_vlan.c",
+        "f_basic.c",
+        "f_bpf.c",
+        "f_cgroup.c",
+        "f_flow.c",
+        "f_flower.c",
+        "f_fw.c",
+        "f_matchall.c",
+        "f_route.c",
+        "f_rsvp.c",
+        "f_tcindex.c",
+        "f_u32.c",
         "q_cbq.c",
-        "tc_util.c",
+        "q_clsact.c",
+        "q_codel.c",
+        "q_drr.c",
+        "q_dsmark.c",
+        "q_fifo.c",
+        "q_fq.c",
+        "q_fq_codel.c",
+        "q_hfsc.c",
+        "q_hhf.c",
+        "q_htb.c",
+        "q_ingress.c",
+        "q_mqprio.c",
+        "q_multiq.c",
+        "q_netem.c",
+        "q_pie.c",
+        "q_prio.c",
+        "q_qfq.c",
+        "q_rr.c",
+        "q_sfb.c",
+        "q_tbf.c",
+        "static-syms.c",
+        "tc.c",
+        "tc_cbq.c",
         "tc_class.c",
         "tc_core.c",
-        "m_action.c",
-        "m_estimator.c",
+        "tc_estimator.c",
+        "tc_exec.c",
         "tc_filter.c",
         "tc_monitor.c",
+        "tc_qdisc.c",
+        "tc_red.c",
         "tc_stab.c",
-        "tc_cbq.c",
-        "tc_estimator.c",
-        "f_u32.c",
-        "m_police.c",
-        "q_ingress.c",
-        "m_mirred.c",
-        "q_htb.c",
+        "tc_util.c",
+        "q_choke.c",
+        "q_gred.c",
+        "q_red.c",
+        "q_sfq.c",
     ],
 
     shared_libs: [
@@ -29,7 +79,10 @@ cc_binary {
         "libnetlink",
     ],
 
-    cflags: ["-Wno-missing-field-initializers"],
+    cflags: [
+        "-Wno-missing-field-initializers",
+        "-Wno-unneeded-internal-declaration",
+    ],
 
     // This is a work around for b/18403920
     ldflags: ["-Wl,--no-gc-sections"],
diff --git a/tc/emp_ematch.lex.c b/tc/emp_ematch.lex.c
new file mode 100644
index 00000000..0e842708
--- /dev/null
+++ b/tc/emp_ematch.lex.c
@@ -0,0 +1,2067 @@
+#line 2 "emp_ematch.lex.c"
+
+#line 4 "emp_ematch.lex.c"
+
+#define  YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define yy_create_buffer ematch__create_buffer
+#define yy_delete_buffer ematch__delete_buffer
+#define yy_flex_debug ematch__flex_debug
+#define yy_init_buffer ematch__init_buffer
+#define yy_flush_buffer ematch__flush_buffer
+#define yy_load_buffer_state ematch__load_buffer_state
+#define yy_switch_to_buffer ematch__switch_to_buffer
+#define yyin ematch_in
+#define yyleng ematch_leng
+#define yylex ematch_lex
+#define yylineno ematch_lineno
+#define yyout ematch_out
+#define yyrestart ematch_restart
+#define yytext ematch_text
+#define yywrap ematch_wrap
+#define yyalloc ematch_alloc
+#define yyrealloc ematch_realloc
+#define yyfree ematch_free
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 6
+#define YY_FLEX_SUBMINOR_VERSION 1
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with  platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types. 
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t; 
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN               (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN              (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN              (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX               (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX              (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX              (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX              (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX             (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX             (4294967295U)
+#endif
+
+#endif /* ! C99 */
+
+#endif /* ! FLEXINT_H */
+
+/* TODO: this is always defined, so inline it */
+#define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
+#else
+#define yynoreturn
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index.  If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* Enter a start condition.  This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state.  The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE ematch_restart(ematch_in  )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
+#define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+extern int ematch_leng;
+
+extern FILE *ematch_in, *ematch_out;
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+    #define YY_LESS_LINENO(n)
+    #define YY_LINENO_REWIND_TO(ptr)
+    
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up ematch_text. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		*yy_cp = (yy_hold_char); \
+		YY_RESTORE_YY_MORE_OFFSET \
+		(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+		YY_DO_BEFORE_ACTION; /* set up ematch_text again */ \
+		} \
+	while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr)  )
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	int yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
+
+    int yy_bs_lineno; /**< The line count. */
+    int yy_bs_column; /**< The column count. */
+
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
+
+	int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+	/* When an EOF's been seen but there's still some text to process
+	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+	 * shouldn't try reading from the input source any more.  We might
+	 * still have a bunch of tokens to match, though, because of
+	 * possible backing-up.
+	 *
+	 * When we actually see the EOF, we change the status to "new"
+	 * (via ematch_restart()), so that the user can continue scanning by
+	 * just pointing ematch_in at a new input file.
+	 */
+#define YY_BUFFER_EOF_PENDING 2
+
+	};
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+                          : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* yy_hold_char holds the character lost when ematch_text is formed. */
+static char yy_hold_char;
+static int yy_n_chars;		/* number of characters read into yy_ch_buf */
+int ematch_leng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = NULL;
+static int yy_init = 0;		/* whether we need to initialize */
+static int yy_start = 0;	/* start state number */
+
+/* Flag which is used to allow ematch_wrap()'s to do buffer switches
+ * instead of setting up a fresh ematch_in.  A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+
+void ematch_restart (FILE *input_file  );
+void ematch__switch_to_buffer (YY_BUFFER_STATE new_buffer  );
+YY_BUFFER_STATE ematch__create_buffer (FILE *file,int size  );
+void ematch__delete_buffer (YY_BUFFER_STATE b  );
+void ematch__flush_buffer (YY_BUFFER_STATE b  );
+void ematch_push_buffer_state (YY_BUFFER_STATE new_buffer  );
+void ematch_pop_buffer_state (void );
+
+static void ematch_ensure_buffer_stack (void );
+static void ematch__load_buffer_state (void );
+static void ematch__init_buffer (YY_BUFFER_STATE b,FILE *file  );
+
+#define YY_FLUSH_BUFFER ematch__flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE ematch__scan_buffer (char *base,yy_size_t size  );
+YY_BUFFER_STATE ematch__scan_string (yyconst char *yy_str  );
+YY_BUFFER_STATE ematch__scan_bytes (yyconst char *bytes,int len  );
+
+void *ematch_alloc (yy_size_t  );
+void *ematch_realloc (void *,yy_size_t  );
+void ematch_free (void *  );
+
+#define yy_new_buffer ematch__create_buffer
+
+#define yy_set_interactive(is_interactive) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){ \
+        ematch_ensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            ematch__create_buffer(ematch_in,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+	}
+
+#define yy_set_bol(at_bol) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){\
+        ematch_ensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            ematch__create_buffer(ematch_in,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+	}
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define ematch_wrap() (/*CONSTCOND*/1)
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+FILE *ematch_in = NULL, *ematch_out = NULL;
+
+typedef int yy_state_type;
+
+extern int ematch_lineno;
+
+int ematch_lineno = 1;
+
+extern char *ematch_text;
+#ifdef yytext_ptr
+#undef yytext_ptr
+#endif
+#define yytext_ptr ematch_text
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
+static int yy_get_next_buffer (void );
+static void yynoreturn yy_fatal_error (yyconst char* msg  );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up ematch_text.
+ */
+#define YY_DO_BEFORE_ACTION \
+	(yytext_ptr) = yy_bp; \
+	ematch_leng = (int) (yy_cp - yy_bp); \
+	(yy_hold_char) = *yy_cp; \
+	*yy_cp = '\0'; \
+	(yy_c_buf_p) = yy_cp;
+
+#define YY_NUM_RULES 22
+#define YY_END_OF_BUFFER 23
+/* This struct is not used in this scanner,
+   but its presence is necessary. */
+struct yy_trans_info
+	{
+	flex_int32_t yy_verify;
+	flex_int32_t yy_nxt;
+	};
+static yyconst flex_int16_t yy_accept[43] =
+    {   0,
+        0,    0,    0,    0,   23,   21,    1,    2,   19,   20,
+       21,   21,   21,   15,   22,    3,   22,   21,    1,   21,
+       21,   17,   15,   14,    4,    5,   13,   11,   12,    7,
+        8,    9,   10,   14,   16,   18,    4,    5,    6,    4,
+        6,    0
+    } ;
+
+static yyconst YY_CHAR yy_ec[256] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
+        1,    1,    2,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    2,    1,    4,    1,    1,    1,    1,    1,    5,
+        6,    1,    1,    1,    1,    1,    1,    7,    7,    7,
+        7,    7,    7,    7,    7,    8,    8,    1,    1,    1,
+        1,    1,    1,    1,    9,   10,   10,   11,   10,   10,
+        1,    1,    1,    1,    1,    1,    1,   12,   13,    1,
+        1,   14,    1,   15,    1,    1,    1,    1,    1,    1,
+        1,   16,    1,    1,    1,    1,   17,   18,   10,   11,
+
+       10,   19,    1,    1,    1,    1,    1,    1,    1,   20,
+       13,    1,    1,   21,    1,   22,    1,   23,    1,   24,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1
+    } ;
+
+static yyconst YY_CHAR yy_meta[25] =
+    {   0,
+        1,    2,    3,    4,    2,    2,    5,    5,    5,    5,
+        5,    1,    1,    1,    1,    4,    5,    5,    5,    1,
+        1,    1,    1,    1
+    } ;
+
+static yyconst flex_uint16_t yy_base[48] =
+    {   0,
+        0,    0,   22,   24,   89,    0,   27,    0,   91,   91,
+       19,   75,   20,    0,   91,   91,   41,    0,   30,   72,
+       51,    0,    0,   91,   28,   60,   91,   91,   91,   91,
+       91,   91,   91,    0,    0,    0,   62,   64,    0,   67,
+       91,   91,   75,   80,   85,   77,   32
+    } ;
+
+static yyconst flex_int16_t yy_def[48] =
+    {   0,
+       42,    1,   43,   43,   42,   44,   42,   44,   42,   42,
+       44,   44,   44,   45,   42,   42,   42,   44,   42,   44,
+       44,   44,   45,   42,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   46,   44,   44,   42,   42,   47,   42,
+       42,    0,   42,   42,   42,   42,   42
+    } ;
+
+static yyconst flex_uint16_t yy_nxt[116] =
+    {   0,
+        6,    7,    7,    8,    9,   10,    6,    6,   11,    6,
+        6,   12,   13,    6,    6,    6,   11,    6,    6,   12,
+        6,    6,    6,    6,   15,   16,   15,   16,   19,   19,
+       20,   19,   19,   22,   37,   38,   41,   17,   20,   17,
+       22,   24,   24,   24,   24,   24,   24,   25,   26,   24,
+       24,   24,   24,   24,   24,   24,   24,   27,   28,   29,
+       30,   31,   32,   33,   34,   36,   38,   38,   40,   38,
+       38,   38,   36,   38,   38,   14,   14,   14,   14,   14,
+       18,   39,   35,   18,   18,   23,   23,   21,   42,   23,
+        5,   42,   42,   42,   42,   42,   42,   42,   42,   42,
+
+       42,   42,   42,   42,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42
+    } ;
+
+static yyconst flex_int16_t yy_chk[116] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    3,    3,    4,    4,    7,    7,
+       11,   19,   19,   13,   25,   25,   47,    3,   11,    4,
+       13,   17,   17,   17,   17,   17,   17,   17,   17,   17,
+       17,   17,   17,   17,   17,   17,   17,   17,   17,   17,
+       17,   17,   17,   17,   17,   21,   26,   26,   37,   37,
+       38,   38,   21,   40,   40,   43,   43,   43,   43,   43,
+       44,   46,   20,   44,   44,   45,   45,   12,    5,   45,
+       42,   42,   42,   42,   42,   42,   42,   42,   42,   42,
+
+       42,   42,   42,   42,   42,   42,   42,   42,   42,   42,
+       42,   42,   42,   42,   42
+    } ;
+
+static yy_state_type yy_last_accepting_state;
+static char *yy_last_accepting_cpos;
+
+extern int ematch__flex_debug;
+int ematch__flex_debug = 0;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *ematch_text;
+#line 1 "emp_ematch.l"
+#line 2 "emp_ematch.l"
+ #include "emp_ematch.yacc.h"
+ #include "m_ematch.h"
+
+ extern int ematch_argc;
+ extern char **ematch_argv;
+
+ #define yylval ematch_lval
+
+ #define NEXT_EM_ARG() do { ematch_argc--; ematch_argv++; } while(0);
+
+ #define YY_INPUT(buf, result, max_size)				\
+ {									\
+ next:									\
+ 	if (ematch_argc <= 0)						\
+		result = YY_NULL;					\
+	else if (**ematch_argv == '\0') {				\
+		NEXT_EM_ARG();						\
+		goto next;						\
+	} else {							\
+		if (max_size <= strlen(*ematch_argv) + 1) {		\
+			fprintf(stderr, "match argument too long.\n");	\
+			result = YY_NULL;				\
+		} else {						\
+			strcpy(buf, *ematch_argv);			\
+			result = strlen(*ematch_argv) + 1;		\
+			buf[result-1] = ' ';				\
+			buf[result] = '\0';				\
+			NEXT_EM_ARG();					\
+		}							\
+	}								\
+ }
+
+ static void __attribute__ ((unused)) yyunput (int c,char *buf_ptr  );
+ static void __attribute__ ((unused)) yy_push_state (int  new_state );
+ static void __attribute__ ((unused)) yy_pop_state  (void);
+ static int  __attribute__ ((unused)) yy_top_state (void );
+
+ static char *strbuf;
+ static unsigned int strbuf_size;
+ static unsigned int strbuf_index;
+
+ static void strbuf_enlarge(void)
+ {
+ 	strbuf_size += 512;
+ 	strbuf = realloc(strbuf, strbuf_size);
+ }
+
+ static void strbuf_append_char(char c)
+ {
+ 	while (strbuf_index >= strbuf_size)
+ 		strbuf_enlarge();
+ 	strbuf[strbuf_index++] = c;
+ }
+
+ static void strbuf_append_charp(char *s)
+ {
+ 	while (strbuf_index >= strbuf_size)
+ 		strbuf_enlarge();
+ 	memcpy(strbuf + strbuf_index, s, strlen(s));
+ 	strbuf_index += strlen(s);
+ }
+
+
+#line 575 "emp_ematch.lex.c"
+
+#define INITIAL 0
+#define lexstr 1
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+static int yy_init_globals (void );
+
+/* Accessor methods to globals.
+   These are made visible to non-reentrant scanners for convenience. */
+
+int ematch_lex_destroy (void );
+
+int ematch_get_debug (void );
+
+void ematch_set_debug (int debug_flag  );
+
+YY_EXTRA_TYPE ematch_get_extra (void );
+
+void ematch_set_extra (YY_EXTRA_TYPE user_defined  );
+
+FILE *ematch_get_in (void );
+
+void ematch_set_in  (FILE * _in_str  );
+
+FILE *ematch_get_out (void );
+
+void ematch_set_out  (FILE * _out_str  );
+
+			int ematch_get_leng (void );
+
+char *ematch_get_text (void );
+
+int ematch_get_lineno (void );
+
+void ematch_set_lineno (int _line_number  );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int ematch_wrap (void );
+#else
+extern int ematch_wrap (void );
+#endif
+#endif
+
+#ifndef YY_NO_UNPUT
+    
+    static void yyunput (int c,char *buf_ptr  );
+    
+#endif
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+
+#endif
+
+        static int yy_start_stack_ptr = 0;
+        static int yy_start_stack_depth = 0;
+        static int *yy_start_stack = NULL;
+    
+    static void yy_push_state (int _new_state );
+    
+    static void yy_pop_state (void );
+    
+    static int yy_top_state (void );
+    
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
+#define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO do { if (fwrite( ematch_text, (size_t) ematch_leng, 1, ematch_out )) {} } while (0)
+#endif
+
+/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+		{ \
+		int c = '*'; \
+		size_t n; \
+		for ( n = 0; n < max_size && \
+			     (c = getc( ematch_in )) != EOF && c != '\n'; ++n ) \
+			buf[n] = (char) c; \
+		if ( c == '\n' ) \
+			buf[n++] = (char) c; \
+		if ( c == EOF && ferror( ematch_in ) ) \
+			YY_FATAL_ERROR( "input in flex scanner failed" ); \
+		result = n; \
+		} \
+	else \
+		{ \
+		errno=0; \
+		while ( (result = (int) fread(buf, 1, max_size, ematch_in))==0 && ferror(ematch_in)) \
+			{ \
+			if( errno != EINTR) \
+				{ \
+				YY_FATAL_ERROR( "input in flex scanner failed" ); \
+				break; \
+				} \
+			errno=0; \
+			clearerr(ematch_in); \
+			} \
+		}\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int ematch_lex (void);
+
+#define YY_DECL int ematch_lex (void)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after ematch_text and ematch_leng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK /*LINTED*/break;
+#endif
+
+#define YY_RULE_SETUP \
+	YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+	yy_state_type yy_current_state;
+	char *yy_cp, *yy_bp;
+	int yy_act;
+    
+	if ( !(yy_init) )
+		{
+		(yy_init) = 1;
+
+#ifdef YY_USER_INIT
+		YY_USER_INIT;
+#endif
+
+		if ( ! (yy_start) )
+			(yy_start) = 1;	/* first start state */
+
+		if ( ! ematch_in )
+			ematch_in = stdin;
+
+		if ( ! ematch_out )
+			ematch_out = stdout;
+
+		if ( ! YY_CURRENT_BUFFER ) {
+			ematch_ensure_buffer_stack ();
+			YY_CURRENT_BUFFER_LVALUE =
+				ematch__create_buffer(ematch_in,YY_BUF_SIZE );
+		}
+
+		ematch__load_buffer_state( );
+		}
+
+	{
+#line 69 "emp_ematch.l"
+
+#line 806 "emp_ematch.lex.c"
+
+	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
+		{
+		yy_cp = (yy_c_buf_p);
+
+		/* Support of ematch_text. */
+		*yy_cp = (yy_hold_char);
+
+		/* yy_bp points to the position in yy_ch_buf of the start of
+		 * the current run.
+		 */
+		yy_bp = yy_cp;
+
+		yy_current_state = (yy_start);
+yy_match:
+		do
+			{
+			YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
+			if ( yy_accept[yy_current_state] )
+				{
+				(yy_last_accepting_state) = yy_current_state;
+				(yy_last_accepting_cpos) = yy_cp;
+				}
+			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+				{
+				yy_current_state = (int) yy_def[yy_current_state];
+				if ( yy_current_state >= 43 )
+					yy_c = yy_meta[(unsigned int) yy_c];
+				}
+			yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+			++yy_cp;
+			}
+		while ( yy_base[yy_current_state] != 91 );
+
+yy_find_action:
+		yy_act = yy_accept[yy_current_state];
+		if ( yy_act == 0 )
+			{ /* have to back up */
+			yy_cp = (yy_last_accepting_cpos);
+			yy_current_state = (yy_last_accepting_state);
+			yy_act = yy_accept[yy_current_state];
+			}
+
+		YY_DO_BEFORE_ACTION;
+
+do_action:	/* This label is used only to access EOF actions. */
+
+		switch ( yy_act )
+	{ /* beginning of action switch */
+			case 0: /* must back up */
+			/* undo the effects of YY_DO_BEFORE_ACTION */
+			*yy_cp = (yy_hold_char);
+			yy_cp = (yy_last_accepting_cpos);
+			yy_current_state = (yy_last_accepting_state);
+			goto yy_find_action;
+
+case 1:
+/* rule 1 can match eol */
+YY_RULE_SETUP
+#line 70 "emp_ematch.l"
+
+	YY_BREAK
+case 2:
+YY_RULE_SETUP
+#line 72 "emp_ematch.l"
+{
+						if (strbuf == NULL) {
+							strbuf_size = 512;
+							strbuf = calloc(1, strbuf_size);
+							if (strbuf == NULL)
+								return ERROR;
+						}
+						strbuf_index = 0;
+
+						BEGIN(lexstr);
+					}
+	YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 84 "emp_ematch.l"
+{
+						BEGIN(INITIAL);
+						yylval.b = bstr_new(strbuf, strbuf_index);
+						yylval.b->quoted = 1;
+						return ATTRIBUTE;
+					}
+	YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 91 "emp_ematch.l"
+{ /* octal escape sequence */
+						int res;
+
+						sscanf(ematch_text + 1, "%o", &res);
+						if (res > 0xFF) {
+							fprintf(stderr, "error: octal escape sequence" \
+							" out of range\n");
+							return ERROR;
+						}
+						strbuf_append_char((unsigned char) res);
+					}
+	YY_BREAK
+case 5:
+YY_RULE_SETUP
+#line 103 "emp_ematch.l"
+{ /* catch wrong octal escape seq. */
+						fprintf(stderr, "error: invalid octale escape sequence\n");
+						return ERROR;
+					}
+	YY_BREAK
+case 6:
+YY_RULE_SETUP
+#line 108 "emp_ematch.l"
+{
+						int res;
+
+						sscanf(ematch_text + 2, "%x", &res);
+
+						if (res > 0xFF) {
+							fprintf(stderr, "error: hexadecimal escape " \
+							"sequence out of range\n");
+							return ERROR;
+						}
+						strbuf_append_char((unsigned char) res);
+					}
+	YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 121 "emp_ematch.l"
+strbuf_append_char('\n');
+	YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 122 "emp_ematch.l"
+strbuf_append_char('\r');
+	YY_BREAK
+case 9:
+YY_RULE_SETUP
+#line 123 "emp_ematch.l"
+strbuf_append_char('\t');
+	YY_BREAK
+case 10:
+YY_RULE_SETUP
+#line 124 "emp_ematch.l"
+strbuf_append_char('\v');
+	YY_BREAK
+case 11:
+YY_RULE_SETUP
+#line 125 "emp_ematch.l"
+strbuf_append_char('\b');
+	YY_BREAK
+case 12:
+YY_RULE_SETUP
+#line 126 "emp_ematch.l"
+strbuf_append_char('\f');
+	YY_BREAK
+case 13:
+YY_RULE_SETUP
+#line 127 "emp_ematch.l"
+strbuf_append_char('\a');
+	YY_BREAK
+case 14:
+/* rule 14 can match eol */
+YY_RULE_SETUP
+#line 129 "emp_ematch.l"
+strbuf_append_char(ematch_text[1]);
+	YY_BREAK
+case 15:
+YY_RULE_SETUP
+#line 130 "emp_ematch.l"
+strbuf_append_charp(ematch_text);
+	YY_BREAK
+case 16:
+YY_RULE_SETUP
+#line 132 "emp_ematch.l"
+return AND;
+	YY_BREAK
+case 17:
+YY_RULE_SETUP
+#line 133 "emp_ematch.l"
+return OR;
+	YY_BREAK
+case 18:
+YY_RULE_SETUP
+#line 134 "emp_ematch.l"
+return NOT;
+	YY_BREAK
+case 19:
+#line 136 "emp_ematch.l"
+case 20:
+YY_RULE_SETUP
+#line 136 "emp_ematch.l"
+{
+						return yylval.i = *ematch_text;
+					}
+	YY_BREAK
+case 21:
+YY_RULE_SETUP
+#line 139 "emp_ematch.l"
+{
+						yylval.b = bstr_alloc(ematch_text);
+						if (yylval.b == NULL)
+							return ERROR;
+						return ATTRIBUTE;
+					}
+	YY_BREAK
+case 22:
+YY_RULE_SETUP
+#line 145 "emp_ematch.l"
+ECHO;
+	YY_BREAK
+#line 1018 "emp_ematch.lex.c"
+case YY_STATE_EOF(INITIAL):
+case YY_STATE_EOF(lexstr):
+	yyterminate();
+
+	case YY_END_OF_BUFFER:
+		{
+		/* Amount of text matched not including the EOB char. */
+		int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+		/* Undo the effects of YY_DO_BEFORE_ACTION. */
+		*yy_cp = (yy_hold_char);
+		YY_RESTORE_YY_MORE_OFFSET
+
+		if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+			{
+			/* We're scanning a new file or input source.  It's
+			 * possible that this happened because the user
+			 * just pointed ematch_in at a new source and called
+			 * ematch_lex().  If so, then we have to assure
+			 * consistency between YY_CURRENT_BUFFER and our
+			 * globals.  Here is the right place to do so, because
+			 * this is the first action (other than possibly a
+			 * back-up) that will match for the new input source.
+			 */
+			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+			YY_CURRENT_BUFFER_LVALUE->yy_input_file = ematch_in;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+			}
+
+		/* Note that here we test for yy_c_buf_p "<=" to the position
+		 * of the first EOB in the buffer, since yy_c_buf_p will
+		 * already have been incremented past the NUL character
+		 * (since all states make transitions on EOB to the
+		 * end-of-buffer state).  Contrast this with the test
+		 * in input().
+		 */
+		if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			{ /* This was really a NUL. */
+			yy_state_type yy_next_state;
+
+			(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+			yy_current_state = yy_get_previous_state(  );
+
+			/* Okay, we're now positioned to make the NUL
+			 * transition.  We couldn't have
+			 * yy_get_previous_state() go ahead and do it
+			 * for us because it doesn't know how to deal
+			 * with the possibility of jamming (and we don't
+			 * want to build jamming into it because then it
+			 * will run more slowly).
+			 */
+
+			yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+			yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+			if ( yy_next_state )
+				{
+				/* Consume the NUL. */
+				yy_cp = ++(yy_c_buf_p);
+				yy_current_state = yy_next_state;
+				goto yy_match;
+				}
+
+			else
+				{
+				yy_cp = (yy_c_buf_p);
+				goto yy_find_action;
+				}
+			}
+
+		else switch ( yy_get_next_buffer(  ) )
+			{
+			case EOB_ACT_END_OF_FILE:
+				{
+				(yy_did_buffer_switch_on_eof) = 0;
+
+				if ( ematch_wrap( ) )
+					{
+					/* Note: because we've taken care in
+					 * yy_get_next_buffer() to have set up
+					 * ematch_text, we can now set up
+					 * yy_c_buf_p so that if some total
+					 * hoser (like flex itself) wants to
+					 * call the scanner after we return the
+					 * YY_NULL, it'll still work - another
+					 * YY_NULL will get returned.
+					 */
+					(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+					yy_act = YY_STATE_EOF(YY_START);
+					goto do_action;
+					}
+
+				else
+					{
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+					}
+				break;
+				}
+
+			case EOB_ACT_CONTINUE_SCAN:
+				(yy_c_buf_p) =
+					(yytext_ptr) + yy_amount_of_matched_text;
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_match;
+
+			case EOB_ACT_LAST_MATCH:
+				(yy_c_buf_p) =
+				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_find_action;
+			}
+		break;
+		}
+
+	default:
+		YY_FATAL_ERROR(
+			"fatal flex scanner internal error--no action found" );
+	} /* end of action switch */
+		} /* end of scanning one token */
+	} /* end of user's declarations */
+} /* end of ematch_lex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ *	EOB_ACT_LAST_MATCH -
+ *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ *	EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (void)
+{
+    	char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+	char *source = (yytext_ptr);
+	int number_to_move, i;
+	int ret_val;
+
+	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+		YY_FATAL_ERROR(
+		"fatal flex scanner internal error--end of buffer missed" );
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+		{ /* Don't try to fill the buffer, so this is an EOF. */
+		if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+			{
+			/* We matched a single character, the EOB, so
+			 * treat this as a final EOF.
+			 */
+			return EOB_ACT_END_OF_FILE;
+			}
+
+		else
+			{
+			/* We matched some text prior to the EOB, first
+			 * process it.
+			 */
+			return EOB_ACT_LAST_MATCH;
+			}
+		}
+
+	/* Try to read more data. */
+
+	/* First move last chars to start of buffer. */
+	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1);
+
+	for ( i = 0; i < number_to_move; ++i )
+		*(dest++) = *(source++);
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+		/* don't do the read, it's not guaranteed to return an EOF,
+		 * just force an EOF
+		 */
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+	else
+		{
+			int num_to_read =
+			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+		while ( num_to_read <= 0 )
+			{ /* Not enough room in the buffer - grow it. */
+
+			/* just a shorter name for the current buffer */
+			YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
+
+			int yy_c_buf_p_offset =
+				(int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+			if ( b->yy_is_our_buffer )
+				{
+				int new_size = b->yy_buf_size * 2;
+
+				if ( new_size <= 0 )
+					b->yy_buf_size += b->yy_buf_size / 8;
+				else
+					b->yy_buf_size *= 2;
+
+				b->yy_ch_buf = (char *)
+					/* Include room in for 2 EOB chars. */
+					ematch_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
+				}
+			else
+				/* Can't grow it, we don't own it. */
+				b->yy_ch_buf = NULL;
+
+			if ( ! b->yy_ch_buf )
+				YY_FATAL_ERROR(
+				"fatal error - scanner input buffer overflow" );
+
+			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+						number_to_move - 1;
+
+			}
+
+		if ( num_to_read > YY_READ_BUF_SIZE )
+			num_to_read = YY_READ_BUF_SIZE;
+
+		/* Read in more data. */
+		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+			(yy_n_chars), num_to_read );
+
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	if ( (yy_n_chars) == 0 )
+		{
+		if ( number_to_move == YY_MORE_ADJ )
+			{
+			ret_val = EOB_ACT_END_OF_FILE;
+			ematch_restart(ematch_in  );
+			}
+
+		else
+			{
+			ret_val = EOB_ACT_LAST_MATCH;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+				YY_BUFFER_EOF_PENDING;
+			}
+		}
+
+	else
+		ret_val = EOB_ACT_CONTINUE_SCAN;
+
+	if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+		/* Extend the array by 50%, plus the number we really need. */
+		int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
+		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) ematch_realloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
+		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+	}
+
+	(yy_n_chars) += number_to_move;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+	(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+	return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+    static yy_state_type yy_get_previous_state (void)
+{
+	yy_state_type yy_current_state;
+	char *yy_cp;
+    
+	yy_current_state = (yy_start);
+
+	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+		{
+		YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+		if ( yy_accept[yy_current_state] )
+			{
+			(yy_last_accepting_state) = yy_current_state;
+			(yy_last_accepting_cpos) = yy_cp;
+			}
+		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+			{
+			yy_current_state = (int) yy_def[yy_current_state];
+			if ( yy_current_state >= 43 )
+				yy_c = yy_meta[(unsigned int) yy_c];
+			}
+		yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+		}
+
+	return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ *	next_state = yy_try_NUL_trans( current_state );
+ */
+    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
+{
+	int yy_is_jam;
+    	char *yy_cp = (yy_c_buf_p);
+
+	YY_CHAR yy_c = 1;
+	if ( yy_accept[yy_current_state] )
+		{
+		(yy_last_accepting_state) = yy_current_state;
+		(yy_last_accepting_cpos) = yy_cp;
+		}
+	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+		{
+		yy_current_state = (int) yy_def[yy_current_state];
+		if ( yy_current_state >= 43 )
+			yy_c = yy_meta[(unsigned int) yy_c];
+		}
+	yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
+	yy_is_jam = (yy_current_state == 42);
+
+		return yy_is_jam ? 0 : yy_current_state;
+}
+
+#ifndef YY_NO_UNPUT
+
+    static void yyunput (int c, char * yy_bp )
+{
+	char *yy_cp;
+    
+    yy_cp = (yy_c_buf_p);
+
+	/* undo effects of setting up ematch_text */
+	*yy_cp = (yy_hold_char);
+
+	if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+		{ /* need to shift things up to make room */
+		/* +2 for EOB chars. */
+		int number_to_move = (yy_n_chars) + 2;
+		char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
+					YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
+		char *source =
+				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
+
+		while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+			*--dest = *--source;
+
+		yy_cp += (int) (dest - source);
+		yy_bp += (int) (dest - source);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
+			(yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+
+		if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
+			YY_FATAL_ERROR( "flex scanner push-back overflow" );
+		}
+
+	*--yy_cp = (char) c;
+
+	(yytext_ptr) = yy_bp;
+	(yy_hold_char) = *yy_cp;
+	(yy_c_buf_p) = yy_cp;
+}
+
+#endif
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+    static int yyinput (void)
+#else
+    static int input  (void)
+#endif
+
+{
+	int c;
+    
+	*(yy_c_buf_p) = (yy_hold_char);
+
+	if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+		{
+		/* yy_c_buf_p now points to the character we want to return.
+		 * If this occurs *before* the EOB characters, then it's a
+		 * valid NUL; if not, then we've hit the end of the buffer.
+		 */
+		if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			/* This was really a NUL. */
+			*(yy_c_buf_p) = '\0';
+
+		else
+			{ /* need more input */
+			int offset = (yy_c_buf_p) - (yytext_ptr);
+			++(yy_c_buf_p);
+
+			switch ( yy_get_next_buffer(  ) )
+				{
+				case EOB_ACT_LAST_MATCH:
+					/* This happens because yy_g_n_b()
+					 * sees that we've accumulated a
+					 * token and flags that we need to
+					 * try matching the token before
+					 * proceeding.  But for input(),
+					 * there's no matching to consider.
+					 * So convert the EOB_ACT_LAST_MATCH
+					 * to EOB_ACT_END_OF_FILE.
+					 */
+
+					/* Reset buffer status. */
+					ematch_restart(ematch_in );
+
+					/*FALLTHROUGH*/
+
+				case EOB_ACT_END_OF_FILE:
+					{
+					if ( ematch_wrap( ) )
+						return 0;
+
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+#ifdef __cplusplus
+					return yyinput();
+#else
+					return input();
+#endif
+					}
+
+				case EOB_ACT_CONTINUE_SCAN:
+					(yy_c_buf_p) = (yytext_ptr) + offset;
+					break;
+				}
+			}
+		}
+
+	c = *(unsigned char *) (yy_c_buf_p);	/* cast for 8-bit char's */
+	*(yy_c_buf_p) = '\0';	/* preserve ematch_text */
+	(yy_hold_char) = *++(yy_c_buf_p);
+
+	return c;
+}
+#endif	/* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * 
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+    void ematch_restart  (FILE * input_file )
+{
+    
+	if ( ! YY_CURRENT_BUFFER ){
+        ematch_ensure_buffer_stack ();
+		YY_CURRENT_BUFFER_LVALUE =
+            ematch__create_buffer(ematch_in,YY_BUF_SIZE );
+	}
+
+	ematch__init_buffer(YY_CURRENT_BUFFER,input_file );
+	ematch__load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * 
+ */
+    void ematch__switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
+{
+    
+	/* TODO. We should be able to replace this entire function body
+	 * with
+	 *		ematch_pop_buffer_state();
+	 *		ematch_push_buffer_state(new_buffer);
+     */
+	ematch_ensure_buffer_stack ();
+	if ( YY_CURRENT_BUFFER == new_buffer )
+		return;
+
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+	ematch__load_buffer_state( );
+
+	/* We don't actually know whether we did this switch during
+	 * EOF (ematch_wrap()) processing, but the only time this flag
+	 * is looked at is after ematch_wrap() is called, so it's safe
+	 * to go ahead and always set it.
+	 */
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+static void ematch__load_buffer_state  (void)
+{
+    	(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+	(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+	ematch_in = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+	(yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * 
+ * @return the allocated buffer state.
+ */
+    YY_BUFFER_STATE ematch__create_buffer  (FILE * file, int  size )
+{
+	YY_BUFFER_STATE b;
+    
+	b = (YY_BUFFER_STATE) ematch_alloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in ematch__create_buffer()" );
+
+	b->yy_buf_size = (yy_size_t)size;
+
+	/* yy_ch_buf has to be 2 characters longer than the size given because
+	 * we need to put in 2 end-of-buffer characters.
+	 */
+	b->yy_ch_buf = (char *) ematch_alloc(b->yy_buf_size + 2  );
+	if ( ! b->yy_ch_buf )
+		YY_FATAL_ERROR( "out of dynamic memory in ematch__create_buffer()" );
+
+	b->yy_is_our_buffer = 1;
+
+	ematch__init_buffer(b,file );
+
+	return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with ematch__create_buffer()
+ * 
+ */
+    void ematch__delete_buffer (YY_BUFFER_STATE  b )
+{
+    
+	if ( ! b )
+		return;
+
+	if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+		YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+	if ( b->yy_is_our_buffer )
+		ematch_free((void *) b->yy_ch_buf  );
+
+	ematch_free((void *) b  );
+}
+
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a ematch_restart() or at EOF.
+ */
+    static void ematch__init_buffer  (YY_BUFFER_STATE  b, FILE * file )
+
+{
+	int oerrno = errno;
+    
+	ematch__flush_buffer(b );
+
+	b->yy_input_file = file;
+	b->yy_fill_buffer = 1;
+
+    /* If b is the current buffer, then ematch__init_buffer was _probably_
+     * called from ematch_restart() or through yy_get_next_buffer.
+     * In that case, we don't want to reset the lineno or column.
+     */
+    if (b != YY_CURRENT_BUFFER){
+        b->yy_bs_lineno = 1;
+        b->yy_bs_column = 0;
+    }
+
+        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
+    
+	errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * 
+ */
+    void ematch__flush_buffer (YY_BUFFER_STATE  b )
+{
+    	if ( ! b )
+		return;
+
+	b->yy_n_chars = 0;
+
+	/* We always need two end-of-buffer characters.  The first causes
+	 * a transition to the end-of-buffer state.  The second causes
+	 * a jam in that state.
+	 */
+	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+	b->yy_buf_pos = &b->yy_ch_buf[0];
+
+	b->yy_at_bol = 1;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	if ( b == YY_CURRENT_BUFFER )
+		ematch__load_buffer_state( );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ *  the current state. This function will allocate the stack
+ *  if necessary.
+ *  @param new_buffer The new state.
+ *  
+ */
+void ematch_push_buffer_state (YY_BUFFER_STATE new_buffer )
+{
+    	if (new_buffer == NULL)
+		return;
+
+	ematch_ensure_buffer_stack();
+
+	/* This block is copied from ematch__switch_to_buffer. */
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	/* Only push if top exists. Otherwise, replace top. */
+	if (YY_CURRENT_BUFFER)
+		(yy_buffer_stack_top)++;
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+	/* copied from ematch__switch_to_buffer. */
+	ematch__load_buffer_state( );
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ *  The next element becomes the new top.
+ *  
+ */
+void ematch_pop_buffer_state (void)
+{
+    	if (!YY_CURRENT_BUFFER)
+		return;
+
+	ematch__delete_buffer(YY_CURRENT_BUFFER );
+	YY_CURRENT_BUFFER_LVALUE = NULL;
+	if ((yy_buffer_stack_top) > 0)
+		--(yy_buffer_stack_top);
+
+	if (YY_CURRENT_BUFFER) {
+		ematch__load_buffer_state( );
+		(yy_did_buffer_switch_on_eof) = 1;
+	}
+}
+
+/* Allocates the stack if it does not exist.
+ *  Guarantees space for at least one push.
+ */
+static void ematch_ensure_buffer_stack (void)
+{
+	int num_to_alloc;
+    
+	if (!(yy_buffer_stack)) {
+
+		/* First allocation is just for 2 elements, since we don't know if this
+		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
+		 * immediate realloc on the next call.
+         */
+      num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
+		(yy_buffer_stack) = (struct yy_buffer_state**)ematch_alloc
+								(num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in ematch_ensure_buffer_stack()" );
+
+		memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+
+		(yy_buffer_stack_max) = num_to_alloc;
+		(yy_buffer_stack_top) = 0;
+		return;
+	}
+
+	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+		/* Increase the buffer to prepare for a possible push. */
+		yy_size_t grow_size = 8 /* arbitrary grow size */;
+
+		num_to_alloc = (yy_buffer_stack_max) + grow_size;
+		(yy_buffer_stack) = (struct yy_buffer_state**)ematch_realloc
+								((yy_buffer_stack),
+								num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in ematch_ensure_buffer_stack()" );
+
+		/* zero only the new slots.*/
+		memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+		(yy_buffer_stack_max) = num_to_alloc;
+	}
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * 
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE ematch__scan_buffer  (char * base, yy_size_t  size )
+{
+	YY_BUFFER_STATE b;
+    
+	if ( size < 2 ||
+	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
+	     base[size-1] != YY_END_OF_BUFFER_CHAR )
+		/* They forgot to leave room for the EOB's. */
+		return NULL;
+
+	b = (YY_BUFFER_STATE) ematch_alloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in ematch__scan_buffer()" );
+
+	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
+	b->yy_buf_pos = b->yy_ch_buf = base;
+	b->yy_is_our_buffer = 0;
+	b->yy_input_file = NULL;
+	b->yy_n_chars = b->yy_buf_size;
+	b->yy_is_interactive = 0;
+	b->yy_at_bol = 1;
+	b->yy_fill_buffer = 0;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	ematch__switch_to_buffer(b  );
+
+	return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to ematch_lex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * 
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ *       ematch__scan_bytes() instead.
+ */
+YY_BUFFER_STATE ematch__scan_string (yyconst char * yystr )
+{
+    
+	return ematch__scan_bytes(yystr,(int) strlen(yystr) );
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to ematch_lex() will
+ * scan from a @e copy of @a bytes.
+ * @param yybytes the byte buffer to scan
+ * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ * 
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE ematch__scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
+{
+	YY_BUFFER_STATE b;
+	char *buf;
+	yy_size_t n;
+	int i;
+    
+	/* Get memory for full buffer, including space for trailing EOB's. */
+	n = (yy_size_t) (_yybytes_len + 2);
+	buf = (char *) ematch_alloc(n  );
+	if ( ! buf )
+		YY_FATAL_ERROR( "out of dynamic memory in ematch__scan_bytes()" );
+
+	for ( i = 0; i < _yybytes_len; ++i )
+		buf[i] = yybytes[i];
+
+	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+	b = ematch__scan_buffer(buf,n );
+	if ( ! b )
+		YY_FATAL_ERROR( "bad buffer in ematch__scan_bytes()" );
+
+	/* It's okay to grow etc. this buffer, and we should throw it
+	 * away when we're done.
+	 */
+	b->yy_is_our_buffer = 1;
+
+	return b;
+}
+
+    static void yy_push_state (int  _new_state )
+{
+    	if ( (yy_start_stack_ptr) >= (yy_start_stack_depth) )
+		{
+		yy_size_t new_size;
+
+		(yy_start_stack_depth) += YY_START_STACK_INCR;
+		new_size = (yy_size_t) (yy_start_stack_depth) * sizeof( int );
+
+		if ( ! (yy_start_stack) )
+			(yy_start_stack) = (int *) ematch_alloc(new_size  );
+
+		else
+			(yy_start_stack) = (int *) ematch_realloc((void *) (yy_start_stack),new_size  );
+
+		if ( ! (yy_start_stack) )
+			YY_FATAL_ERROR( "out of memory expanding start-condition stack" );
+		}
+
+	(yy_start_stack)[(yy_start_stack_ptr)++] = YY_START;
+
+	BEGIN(_new_state);
+}
+
+    static void yy_pop_state  (void)
+{
+    	if ( --(yy_start_stack_ptr) < 0 )
+		YY_FATAL_ERROR( "start-condition stack underflow" );
+
+	BEGIN((yy_start_stack)[(yy_start_stack_ptr)]);
+}
+
+    static int yy_top_state  (void)
+{
+    	return (yy_start_stack)[(yy_start_stack_ptr) - 1];
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yynoreturn yy_fatal_error (yyconst char* msg )
+{
+			(void) fprintf( stderr, "%s\n", msg );
+	exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up ematch_text. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		ematch_text[ematch_leng] = (yy_hold_char); \
+		(yy_c_buf_p) = ematch_text + yyless_macro_arg; \
+		(yy_hold_char) = *(yy_c_buf_p); \
+		*(yy_c_buf_p) = '\0'; \
+		ematch_leng = yyless_macro_arg; \
+		} \
+	while ( 0 )
+
+/* Accessor  methods (get/set functions) to struct members. */
+
+/** Get the current line number.
+ * 
+ */
+int ematch_get_lineno  (void)
+{
+    
+    return ematch_lineno;
+}
+
+/** Get the input stream.
+ * 
+ */
+FILE *ematch_get_in  (void)
+{
+        return ematch_in;
+}
+
+/** Get the output stream.
+ * 
+ */
+FILE *ematch_get_out  (void)
+{
+        return ematch_out;
+}
+
+/** Get the length of the current token.
+ * 
+ */
+int ematch_get_leng  (void)
+{
+        return ematch_leng;
+}
+
+/** Get the current token.
+ * 
+ */
+
+char *ematch_get_text  (void)
+{
+        return ematch_text;
+}
+
+/** Set the current line number.
+ * @param _line_number line number
+ * 
+ */
+void ematch_set_lineno (int  _line_number )
+{
+    
+    ematch_lineno = _line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param _in_str A readable stream.
+ * 
+ * @see ematch__switch_to_buffer
+ */
+void ematch_set_in (FILE *  _in_str )
+{
+        ematch_in = _in_str ;
+}
+
+void ematch_set_out (FILE *  _out_str )
+{
+        ematch_out = _out_str ;
+}
+
+int ematch_get_debug  (void)
+{
+        return ematch__flex_debug;
+}
+
+void ematch_set_debug (int  _bdebug )
+{
+        ematch__flex_debug = _bdebug ;
+}
+
+static int yy_init_globals (void)
+{
+        /* Initialization is the same as for the non-reentrant scanner.
+     * This function is called from ematch_lex_destroy(), so don't allocate here.
+     */
+
+    (yy_buffer_stack) = NULL;
+    (yy_buffer_stack_top) = 0;
+    (yy_buffer_stack_max) = 0;
+    (yy_c_buf_p) = NULL;
+    (yy_init) = 0;
+    (yy_start) = 0;
+
+    (yy_start_stack_ptr) = 0;
+    (yy_start_stack_depth) = 0;
+    (yy_start_stack) =  NULL;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+    ematch_in = stdin;
+    ematch_out = stdout;
+#else
+    ematch_in = NULL;
+    ematch_out = NULL;
+#endif
+
+    /* For future reference: Set errno on error, since we are called by
+     * ematch_lex_init()
+     */
+    return 0;
+}
+
+/* ematch_lex_destroy is for both reentrant and non-reentrant scanners. */
+int ematch_lex_destroy  (void)
+{
+    
+    /* Pop the buffer stack, destroying each element. */
+	while(YY_CURRENT_BUFFER){
+		ematch__delete_buffer(YY_CURRENT_BUFFER  );
+		YY_CURRENT_BUFFER_LVALUE = NULL;
+		ematch_pop_buffer_state();
+	}
+
+	/* Destroy the stack itself. */
+	ematch_free((yy_buffer_stack) );
+	(yy_buffer_stack) = NULL;
+
+    /* Destroy the start condition stack. */
+        ematch_free((yy_start_stack)  );
+        (yy_start_stack) = NULL;
+
+    /* Reset the globals. This is important in a non-reentrant scanner so the next time
+     * ematch_lex() is called, initialization will occur. */
+    yy_init_globals( );
+
+    return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+		
+	int i;
+	for ( i = 0; i < n; ++i )
+		s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+	int n;
+	for ( n = 0; s[n]; ++n )
+		;
+
+	return n;
+}
+#endif
+
+void *ematch_alloc (yy_size_t  size )
+{
+			return malloc(size);
+}
+
+void *ematch_realloc  (void * ptr, yy_size_t  size )
+{
+		
+	/* The cast to (char *) in the following accommodates both
+	 * implementations that use char* generic pointers, and those
+	 * that use void* generic pointers.  It works with the latter
+	 * because both ANSI C and C++ allow castless assignment from
+	 * any pointer type to void*, and deal with argument conversions
+	 * as though doing an assignment.
+	 */
+	return realloc(ptr, size);
+}
+
+void ematch_free (void * ptr )
+{
+			free( (char *) ptr );	/* see ematch_realloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+#line 145 "emp_ematch.l"
+
+
+
diff --git a/tc/emp_ematch.yacc.c b/tc/emp_ematch.yacc.c
new file mode 100644
index 00000000..94cfa35f
--- /dev/null
+++ b/tc/emp_ematch.yacc.c
@@ -0,0 +1,1674 @@
+/* A Bison parser, made by GNU Bison 3.0.4.  */
+
+/* Bison implementation for Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+   simplifying the original so-called "semantic" parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Bison version.  */
+#define YYBISON_VERSION "3.0.4"
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 0
+
+/* Push parsers.  */
+#define YYPUSH 0
+
+/* Pull parsers.  */
+#define YYPULL 1
+
+
+/* Substitute the variable and function names.  */
+#define yyparse         ematch_parse
+#define yylex           ematch_lex
+#define yyerror         ematch_error
+#define yydebug         ematch_debug
+#define yynerrs         ematch_nerrs
+
+#define yylval          ematch_lval
+#define yychar          ematch_char
+#define yylloc          ematch_lloc
+
+/* Copy the first part of user declarations.  */
+#line 1 "emp_ematch.y" /* yacc.c:339  */
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <malloc.h>
+ #include <string.h>
+ #include "m_ematch.h"
+
+#line 83 "emp_ematch.yacc.c" /* yacc.c:339  */
+
+# ifndef YY_NULLPTR
+#  if defined __cplusplus && 201103L <= __cplusplus
+#   define YY_NULLPTR nullptr
+#  else
+#   define YY_NULLPTR 0
+#  endif
+# endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 1
+#endif
+
+/* In a future release of Bison, this section will be replaced
+   by #include "emp_ematch.yacc.h".  */
+#ifndef YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED
+# define YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED
+/* Debug traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 1
+#endif
+#if YYDEBUG
+extern int ematch_debug;
+#endif
+
+/* Token type.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+  enum yytokentype
+  {
+    ERROR = 258,
+    ATTRIBUTE = 259,
+    AND = 260,
+    OR = 261,
+    NOT = 262
+  };
+#endif
+
+/* Value type.  */
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+
+union YYSTYPE
+{
+#line 14 "emp_ematch.y" /* yacc.c:355  */
+
+	unsigned int i;
+	struct bstr *b;
+	struct ematch *e;
+
+#line 137 "emp_ematch.yacc.c" /* yacc.c:355  */
+};
+
+typedef union YYSTYPE YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+/* Location type.  */
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE YYLTYPE;
+struct YYLTYPE
+{
+  int first_line;
+  int first_column;
+  int last_line;
+  int last_column;
+};
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+extern YYSTYPE ematch_lval;
+extern YYLTYPE ematch_lloc;
+int ematch_parse (void);
+
+#endif /* !YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED  */
+
+/* Copy the second part of user declarations.  */
+#line 20 "emp_ematch.y" /* yacc.c:358  */
+
+ extern int ematch_lex(void);
+ extern void yyerror(const char *s);
+ extern struct ematch *ematch_root;
+ extern char *ematch_err;
+
+#line 174 "emp_ematch.yacc.c" /* yacc.c:358  */
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#else
+typedef signed char yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+#  define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+#  define YYSIZE_T size_t
+# elif ! defined YYSIZE_T
+#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYSIZE_T size_t
+# else
+#  define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+#  if ENABLE_NLS
+#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)
+#  endif
+# endif
+# ifndef YY_
+#  define YY_(Msgid) Msgid
+# endif
+#endif
+
+#ifndef YY_ATTRIBUTE
+# if (defined __GNUC__                                               \
+      && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__)))  \
+     || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C
+#  define YY_ATTRIBUTE(Spec) __attribute__(Spec)
+# else
+#  define YY_ATTRIBUTE(Spec) /* empty */
+# endif
+#endif
+
+#ifndef YY_ATTRIBUTE_PURE
+# define YY_ATTRIBUTE_PURE   YY_ATTRIBUTE ((__pure__))
+#endif
+
+#ifndef YY_ATTRIBUTE_UNUSED
+# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__))
+#endif
+
+#if !defined _Noreturn \
+     && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112)
+# if defined _MSC_VER && 1200 <= _MSC_VER
+#  define _Noreturn __declspec (noreturn)
+# else
+#  define _Noreturn YY_ATTRIBUTE ((__noreturn__))
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E.  */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(E) ((void) (E))
+#else
+# define YYUSE(E) /* empty */
+#endif
+
+#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
+/* Suppress an incorrect diagnostic about yylval being uninitialized.  */
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
+    _Pragma ("GCC diagnostic push") \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
+    _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END \
+    _Pragma ("GCC diagnostic pop")
+#else
+# define YY_INITIAL_VALUE(Value) Value
+#endif
+#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+# define YY_IGNORE_MAYBE_UNINITIALIZED_END
+#endif
+#ifndef YY_INITIAL_VALUE
+# define YY_INITIAL_VALUE(Value) /* Nothing. */
+#endif
+
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# ifdef YYSTACK_USE_ALLOCA
+#  if YYSTACK_USE_ALLOCA
+#   ifdef __GNUC__
+#    define YYSTACK_ALLOC __builtin_alloca
+#   elif defined __BUILTIN_VA_ARG_INCR
+#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+#   elif defined _AIX
+#    define YYSTACK_ALLOC __alloca
+#   elif defined _MSC_VER
+#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+#    define alloca _alloca
+#   else
+#    define YYSTACK_ALLOC alloca
+#    if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS
+#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+      /* Use EXIT_SUCCESS as a witness for stdlib.h.  */
+#     ifndef EXIT_SUCCESS
+#      define EXIT_SUCCESS 0
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's 'empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+    /* The OS might guarantee only one guard page at the bottom of the stack,
+       and a page size can be as small as 4096 bytes.  So we cannot safely
+       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
+       to allow for a few compiler-allocated temporary stack slots.  */
+#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+#  endif
+# else
+#  define YYSTACK_ALLOC YYMALLOC
+#  define YYSTACK_FREE YYFREE
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+#  endif
+#  if (defined __cplusplus && ! defined EXIT_SUCCESS \
+       && ! ((defined YYMALLOC || defined malloc) \
+             && (defined YYFREE || defined free)))
+#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#   ifndef EXIT_SUCCESS
+#    define EXIT_SUCCESS 0
+#   endif
+#  endif
+#  ifndef YYMALLOC
+#   define YYMALLOC malloc
+#   if ! defined malloc && ! defined EXIT_SUCCESS
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifndef YYFREE
+#   define YYFREE free
+#   if ! defined free && ! defined EXIT_SUCCESS
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+     && (! defined __cplusplus \
+         || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+             && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  yytype_int16 yyss_alloc;
+  YYSTYPE yyvs_alloc;
+  YYLTYPE yyls_alloc;
+};
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+      + 2 * YYSTACK_GAP_MAXIMUM)
+
+# define YYCOPY_NEEDED 1
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   elements in the stack, and YYPTR gives the new location of the
+   stack.  Advance YYPTR to a properly aligned location for the next
+   stack.  */
+# define YYSTACK_RELOCATE(Stack_alloc, Stack)                           \
+    do                                                                  \
+      {                                                                 \
+        YYSIZE_T yynewbytes;                                            \
+        YYCOPY (&yyptr->Stack_alloc, Stack, yysize);                    \
+        Stack = &yyptr->Stack_alloc;                                    \
+        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+        yyptr += yynewbytes / sizeof (*yyptr);                          \
+      }                                                                 \
+    while (0)
+
+#endif
+
+#if defined YYCOPY_NEEDED && YYCOPY_NEEDED
+/* Copy COUNT objects from SRC to DST.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined __GNUC__ && 1 < __GNUC__
+#   define YYCOPY(Dst, Src, Count) \
+      __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src)))
+#  else
+#   define YYCOPY(Dst, Src, Count)              \
+      do                                        \
+        {                                       \
+          YYSIZE_T yyi;                         \
+          for (yyi = 0; yyi < (Count); yyi++)   \
+            (Dst)[yyi] = (Src)[yyi];            \
+        }                                       \
+      while (0)
+#  endif
+# endif
+#endif /* !YYCOPY_NEEDED */
+
+/* YYFINAL -- State number of the termination state.  */
+#define YYFINAL  6
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   16
+
+/* YYNTOKENS -- Number of terminals.  */
+#define YYNTOKENS  10
+/* YYNNTS -- Number of nonterminals.  */
+#define YYNNTS  7
+/* YYNRULES -- Number of rules.  */
+#define YYNRULES  14
+/* YYNSTATES -- Number of states.  */
+#define YYNSTATES  21
+
+/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
+   by yylex, with out-of-bounds checking.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   262
+
+#define YYTRANSLATE(YYX)                                                \
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
+   as returned by yylex, without out-of-bounds checking.  */
+static const yytype_uint8 yytranslate[] =
+{
+       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       8,     9,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
+       5,     6,     7
+};
+
+#if YYDEBUG
+  /* YYRLINE[YYN] -- Source line where rule number YYN was defined.  */
+static const yytype_uint8 yyrline[] =
+{
+       0,    36,    36,    38,    40,    48,    50,    59,    66,    76,
+      78,    83,    85,    91,    92
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || 1
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
+static const char *const yytname[] =
+{
+  "$end", "error", "$undefined", "ERROR", "ATTRIBUTE", "AND", "OR", "NOT",
+  "'('", "')'", "$accept", "input", "expr", "match", "args", "relation",
+  "invert", YY_NULLPTR
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[NUM] -- (External) token number corresponding to the
+   (internal) symbol number NUM (which must be that of a token).  */
+static const yytype_uint16 yytoknum[] =
+{
+       0,   256,   257,   258,   259,   260,   261,   262,    40,    41
+};
+# endif
+
+#define YYPACT_NINF -9
+
+#define yypact_value_is_default(Yystate) \
+  (!!((Yystate) == (-9)))
+
+#define YYTABLE_NINF -4
+
+#define yytable_value_is_error(Yytable_value) \
+  0
+
+  /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+     STATE-NUM.  */
+static const yytype_int8 yypact[] =
+{
+       0,    -9,     3,     8,     5,    -3,    -9,    -9,    -9,    -9,
+      -1,     4,    -1,    -9,     9,     6,     9,     7,    -9,    -9,
+      -9
+};
+
+  /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM.
+     Performed when YYTABLE does not specify something else to do.  Zero
+     means the default is an error.  */
+static const yytype_uint8 yydefact[] =
+{
+      13,    14,     0,     0,     5,     0,     1,     4,    11,    12,
+      13,     0,    13,     6,     0,     0,     9,     0,     8,    10,
+       7
+};
+
+  /* YYPGOTO[NTERM-NUM].  */
+static const yytype_int8 yypgoto[] =
+{
+      -9,    -9,    -8,    -9,    -2,    -9,    -9
+};
+
+  /* YYDEFGOTO[NTERM-NUM].  */
+static const yytype_int8 yydefgoto[] =
+{
+      -1,     2,     3,     4,    17,    10,     5
+};
+
+  /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM.  If
+     positive, shift that token.  If negative, reduce the rule whose
+     number is the opposite.  If YYTABLE_NINF, syntax error.  */
+static const yytype_int8 yytable[] =
+{
+      -2,    11,    13,     6,    15,    12,     1,     1,    -3,     7,
+       8,     9,    14,    16,    19,    18,    20
+};
+
+static const yytype_uint8 yycheck[] =
+{
+       0,     4,    10,     0,    12,     8,     7,     7,     0,     1,
+       5,     6,     8,     4,    16,     9,     9
+};
+
+  /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+     symbol of state STATE-NUM.  */
+static const yytype_uint8 yystos[] =
+{
+       0,     7,    11,    12,    13,    16,     0,     1,     5,     6,
+      15,     4,     8,    12,     8,    12,     4,    14,     9,    14,
+       9
+};
+
+  /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const yytype_uint8 yyr1[] =
+{
+       0,    10,    11,    11,    11,    12,    12,    13,    13,    14,
+      14,    15,    15,    16,    16
+};
+
+  /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.  */
+static const yytype_uint8 yyr2[] =
+{
+       0,     2,     0,     1,     2,     1,     3,     5,     4,     1,
+       2,     1,     1,     0,     1
+};
+
+
+#define yyerrok         (yyerrstatus = 0)
+#define yyclearin       (yychar = YYEMPTY)
+#define YYEMPTY         (-2)
+#define YYEOF           0
+
+#define YYACCEPT        goto yyacceptlab
+#define YYABORT         goto yyabortlab
+#define YYERROR         goto yyerrorlab
+
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)                                  \
+do                                                              \
+  if (yychar == YYEMPTY)                                        \
+    {                                                           \
+      yychar = (Token);                                         \
+      yylval = (Value);                                         \
+      YYPOPSTACK (yylen);                                       \
+      yystate = *yyssp;                                         \
+      goto yybackup;                                            \
+    }                                                           \
+  else                                                          \
+    {                                                           \
+      yyerror (YY_("syntax error: cannot back up")); \
+      YYERROR;                                                  \
+    }                                                           \
+while (0)
+
+/* Error token number */
+#define YYTERROR        1
+#define YYERRCODE       256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)                                \
+    do                                                                  \
+      if (N)                                                            \
+        {                                                               \
+          (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
+          (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
+          (Current).last_line    = YYRHSLOC (Rhs, N).last_line;         \
+          (Current).last_column  = YYRHSLOC (Rhs, N).last_column;       \
+        }                                                               \
+      else                                                              \
+        {                                                               \
+          (Current).first_line   = (Current).last_line   =              \
+            YYRHSLOC (Rhs, 0).last_line;                                \
+          (Current).first_column = (Current).last_column =              \
+            YYRHSLOC (Rhs, 0).last_column;                              \
+        }                                                               \
+    while (0)
+#endif
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)                        \
+do {                                            \
+  if (yydebug)                                  \
+    YYFPRINTF Args;                             \
+} while (0)
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+   This macro was not mandated originally: define only if we know
+   we won't break user code: when these are the locations we know.  */
+
+#ifndef YY_LOCATION_PRINT
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+
+/* Print *YYLOCP on YYO.  Private, do not rely on its existence. */
+
+YY_ATTRIBUTE_UNUSED
+static unsigned
+yy_location_print_ (FILE *yyo, YYLTYPE const * const yylocp)
+{
+  unsigned res = 0;
+  int end_col = 0 != yylocp->last_column ? yylocp->last_column - 1 : 0;
+  if (0 <= yylocp->first_line)
+    {
+      res += YYFPRINTF (yyo, "%d", yylocp->first_line);
+      if (0 <= yylocp->first_column)
+        res += YYFPRINTF (yyo, ".%d", yylocp->first_column);
+    }
+  if (0 <= yylocp->last_line)
+    {
+      if (yylocp->first_line < yylocp->last_line)
+        {
+          res += YYFPRINTF (yyo, "-%d", yylocp->last_line);
+          if (0 <= end_col)
+            res += YYFPRINTF (yyo, ".%d", end_col);
+        }
+      else if (0 <= end_col && yylocp->first_column < end_col)
+        res += YYFPRINTF (yyo, "-%d", end_col);
+    }
+  return res;
+ }
+
+#  define YY_LOCATION_PRINT(File, Loc)          \
+  yy_location_print_ (File, &(Loc))
+
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                    \
+do {                                                                      \
+  if (yydebug)                                                            \
+    {                                                                     \
+      YYFPRINTF (stderr, "%s ", Title);                                   \
+      yy_symbol_print (stderr,                                            \
+                  Type, Value, Location); \
+      YYFPRINTF (stderr, "\n");                                           \
+    }                                                                     \
+} while (0)
+
+
+/*----------------------------------------.
+| Print this symbol's value on YYOUTPUT.  |
+`----------------------------------------*/
+
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+{
+  FILE *yyo = yyoutput;
+  YYUSE (yyo);
+  YYUSE (yylocationp);
+  if (!yyvaluep)
+    return;
+# ifdef YYPRINT
+  if (yytype < YYNTOKENS)
+    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# endif
+  YYUSE (yytype);
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+{
+  YYFPRINTF (yyoutput, "%s %s (",
+             yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]);
+
+  YY_LOCATION_PRINT (yyoutput, *yylocationp);
+  YYFPRINTF (yyoutput, ": ");
+  yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp);
+  YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included).                                                   |
+`------------------------------------------------------------------*/
+
+static void
+yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop)
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (; yybottom <= yytop; yybottom++)
+    {
+      int yybot = *yybottom;
+      YYFPRINTF (stderr, " %d", yybot);
+    }
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)                            \
+do {                                                            \
+  if (yydebug)                                                  \
+    yy_stack_print ((Bottom), (Top));                           \
+} while (0)
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+static void
+yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule)
+{
+  unsigned long int yylno = yyrline[yyrule];
+  int yynrhs = yyr2[yyrule];
+  int yyi;
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+             yyrule - 1, yylno);
+  /* The symbols being reduced.  */
+  for (yyi = 0; yyi < yynrhs; yyi++)
+    {
+      YYFPRINTF (stderr, "   $%d = ", yyi + 1);
+      yy_symbol_print (stderr,
+                       yystos[yyssp[yyi + 1 - yynrhs]],
+                       &(yyvsp[(yyi + 1) - (yynrhs)])
+                       , &(yylsp[(yyi + 1) - (yynrhs)])                       );
+      YYFPRINTF (stderr, "\n");
+    }
+}
+
+# define YY_REDUCE_PRINT(Rule)          \
+do {                                    \
+  if (yydebug)                          \
+    yy_reduce_print (yyssp, yyvsp, yylsp, Rule); \
+} while (0)
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined __GLIBC__ && defined _STRING_H
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+static YYSIZE_T
+yystrlen (const char *yystr)
+{
+  YYSIZE_T yylen;
+  for (yylen = 0; yystr[yylen]; yylen++)
+    continue;
+  return yylen;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+{
+  char *yyd = yydest;
+  const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+   quotes and backslashes, so that it's suitable for yyerror.  The
+   heuristic is that double-quoting is unnecessary unless the string
+   contains an apostrophe, a comma, or backslash (other than
+   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
+   null, do not copy; instead, return the length of what the result
+   would have been.  */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+  if (*yystr == '"')
+    {
+      YYSIZE_T yyn = 0;
+      char const *yyp = yystr;
+
+      for (;;)
+        switch (*++yyp)
+          {
+          case '\'':
+          case ',':
+            goto do_not_strip_quotes;
+
+          case '\\':
+            if (*++yyp != '\\')
+              goto do_not_strip_quotes;
+            /* Fall through.  */
+          default:
+            if (yyres)
+              yyres[yyn] = *yyp;
+            yyn++;
+            break;
+
+          case '"':
+            if (yyres)
+              yyres[yyn] = '\0';
+            return yyn;
+          }
+    do_not_strip_quotes: ;
+    }
+
+  if (! yyres)
+    return yystrlen (yystr);
+
+  return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+   about the unexpected token YYTOKEN for the state stack whose top is
+   YYSSP.
+
+   Return 0 if *YYMSG was successfully written.  Return 1 if *YYMSG is
+   not large enough to hold the message.  In that case, also set
+   *YYMSG_ALLOC to the required number of bytes.  Return 2 if the
+   required number of bytes is too large to store.  */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+                yytype_int16 *yyssp, int yytoken)
+{
+  YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]);
+  YYSIZE_T yysize = yysize0;
+  enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+  /* Internationalized format string. */
+  const char *yyformat = YY_NULLPTR;
+  /* Arguments of yyformat. */
+  char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+  /* Number of reported tokens (one for the "unexpected", one per
+     "expected"). */
+  int yycount = 0;
+
+  /* There are many possibilities here to consider:
+     - If this state is a consistent state with a default action, then
+       the only way this function was invoked is if the default action
+       is an error action.  In that case, don't check for expected
+       tokens because there are none.
+     - The only way there can be no lookahead present (in yychar) is if
+       this state is a consistent state with a default action.  Thus,
+       detecting the absence of a lookahead is sufficient to determine
+       that there is no unexpected or expected token to report.  In that
+       case, just report a simple "syntax error".
+     - Don't assume there isn't a lookahead just because this state is a
+       consistent state with a default action.  There might have been a
+       previous inconsistent state, consistent state with a non-default
+       action, or user semantic action that manipulated yychar.
+     - Of course, the expected token list depends on states to have
+       correct lookahead information, and it depends on the parser not
+       to perform extra reductions after fetching a lookahead from the
+       scanner and before detecting a syntax error.  Thus, state merging
+       (from LALR or IELR) and default reductions corrupt the expected
+       token list.  However, the list is correct for canonical LR with
+       one exception: it will still contain any token that will not be
+       accepted due to an error action in a later state.
+  */
+  if (yytoken != YYEMPTY)
+    {
+      int yyn = yypact[*yyssp];
+      yyarg[yycount++] = yytname[yytoken];
+      if (!yypact_value_is_default (yyn))
+        {
+          /* Start YYX at -YYN if negative to avoid negative indexes in
+             YYCHECK.  In other words, skip the first -YYN actions for
+             this state because they are default actions.  */
+          int yyxbegin = yyn < 0 ? -yyn : 0;
+          /* Stay within bounds of both yycheck and yytname.  */
+          int yychecklim = YYLAST - yyn + 1;
+          int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+          int yyx;
+
+          for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+            if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+                && !yytable_value_is_error (yytable[yyx + yyn]))
+              {
+                if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+                  {
+                    yycount = 1;
+                    yysize = yysize0;
+                    break;
+                  }
+                yyarg[yycount++] = yytname[yyx];
+                {
+                  YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]);
+                  if (! (yysize <= yysize1
+                         && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+                    return 2;
+                  yysize = yysize1;
+                }
+              }
+        }
+    }
+
+  switch (yycount)
+    {
+# define YYCASE_(N, S)                      \
+      case N:                               \
+        yyformat = S;                       \
+      break
+      YYCASE_(0, YY_("syntax error"));
+      YYCASE_(1, YY_("syntax error, unexpected %s"));
+      YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+      YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+      YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+      YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+# undef YYCASE_
+    }
+
+  {
+    YYSIZE_T yysize1 = yysize + yystrlen (yyformat);
+    if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+      return 2;
+    yysize = yysize1;
+  }
+
+  if (*yymsg_alloc < yysize)
+    {
+      *yymsg_alloc = 2 * yysize;
+      if (! (yysize <= *yymsg_alloc
+             && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+        *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+      return 1;
+    }
+
+  /* Avoid sprintf, as that infringes on the user's name space.
+     Don't have undefined behavior even if the translation
+     produced a string with the wrong number of "%s"s.  */
+  {
+    char *yyp = *yymsg;
+    int yyi = 0;
+    while ((*yyp = *yyformat) != '\0')
+      if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+        {
+          yyp += yytnamerr (yyp, yyarg[yyi++]);
+          yyformat += 2;
+        }
+      else
+        {
+          yyp++;
+          yyformat++;
+        }
+  }
+  return 0;
+}
+#endif /* YYERROR_VERBOSE */
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp)
+{
+  YYUSE (yyvaluep);
+  YYUSE (yylocationp);
+  if (!yymsg)
+    yymsg = "Deleting";
+  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+  YYUSE (yytype);
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
+}
+
+
+
+
+/* The lookahead symbol.  */
+int yychar;
+
+/* The semantic value of the lookahead symbol.  */
+YYSTYPE yylval;
+/* Location data for the lookahead symbol.  */
+YYLTYPE yylloc
+# if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+  = { 1, 1, 1, 1 }
+# endif
+;
+/* Number of syntax errors so far.  */
+int yynerrs;
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+int
+yyparse (void)
+{
+    int yystate;
+    /* Number of tokens to shift before error messages enabled.  */
+    int yyerrstatus;
+
+    /* The stacks and their tools:
+       'yyss': related to states.
+       'yyvs': related to semantic values.
+       'yyls': related to locations.
+
+       Refer to the stacks through separate pointers, to allow yyoverflow
+       to reallocate them elsewhere.  */
+
+    /* The state stack.  */
+    yytype_int16 yyssa[YYINITDEPTH];
+    yytype_int16 *yyss;
+    yytype_int16 *yyssp;
+
+    /* The semantic value stack.  */
+    YYSTYPE yyvsa[YYINITDEPTH];
+    YYSTYPE *yyvs;
+    YYSTYPE *yyvsp;
+
+    /* The location stack.  */
+    YYLTYPE yylsa[YYINITDEPTH];
+    YYLTYPE *yyls;
+    YYLTYPE *yylsp;
+
+    /* The locations where the error started and ended.  */
+    YYLTYPE yyerror_range[3];
+
+    YYSIZE_T yystacksize;
+
+  int yyn;
+  int yyresult;
+  /* Lookahead token as an internal (translated) token number.  */
+  int yytoken = 0;
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+  YYLTYPE yyloc;
+
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
+  /* The number of symbols on the RHS of the reduced rule.
+     Keep to zero when no symbol should be popped.  */
+  int yylen = 0;
+
+  yyssp = yyss = yyssa;
+  yyvsp = yyvs = yyvsa;
+  yylsp = yyls = yylsa;
+  yystacksize = YYINITDEPTH;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY; /* Cause a token to be read.  */
+  yylsp[0] = yylloc;
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+ yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed.  So pushing a state here evens the stacks.  */
+  yyssp++;
+
+ yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp)
+    {
+      /* Get the current used size of the three stacks, in elements.  */
+      YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+      {
+        /* Give user a chance to reallocate the stack.  Use copies of
+           these so that the &'s don't force the real ones into
+           memory.  */
+        YYSTYPE *yyvs1 = yyvs;
+        yytype_int16 *yyss1 = yyss;
+        YYLTYPE *yyls1 = yyls;
+
+        /* Each stack pointer address is followed by the size of the
+           data in use in that stack, in bytes.  This used to be a
+           conditional around just the two extra args, but that might
+           be undefined if yyoverflow is a macro.  */
+        yyoverflow (YY_("memory exhausted"),
+                    &yyss1, yysize * sizeof (*yyssp),
+                    &yyvs1, yysize * sizeof (*yyvsp),
+                    &yyls1, yysize * sizeof (*yylsp),
+                    &yystacksize);
+
+        yyls = yyls1;
+        yyss = yyss1;
+        yyvs = yyvs1;
+      }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+      goto yyexhaustedlab;
+# else
+      /* Extend the stack our own way.  */
+      if (YYMAXDEPTH <= yystacksize)
+        goto yyexhaustedlab;
+      yystacksize *= 2;
+      if (YYMAXDEPTH < yystacksize)
+        yystacksize = YYMAXDEPTH;
+
+      {
+        yytype_int16 *yyss1 = yyss;
+        union yyalloc *yyptr =
+          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+        if (! yyptr)
+          goto yyexhaustedlab;
+        YYSTACK_RELOCATE (yyss_alloc, yyss);
+        YYSTACK_RELOCATE (yyvs_alloc, yyvs);
+        YYSTACK_RELOCATE (yyls_alloc, yyls);
+#  undef YYSTACK_RELOCATE
+        if (yyss1 != yyssa)
+          YYSTACK_FREE (yyss1);
+      }
+# endif
+#endif /* no yyoverflow */
+
+      yyssp = yyss + yysize - 1;
+      yyvsp = yyvs + yysize - 1;
+      yylsp = yyls + yysize - 1;
+
+      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+                  (unsigned long int) yystacksize));
+
+      if (yyss + yystacksize - 1 <= yyssp)
+        YYABORT;
+    }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  if (yystate == YYFINAL)
+    YYACCEPT;
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+  /* Do appropriate processing given the current state.  Read a
+     lookahead token if we need one and don't already have one.  */
+
+  /* First try to decide what to do without reference to lookahead token.  */
+  yyn = yypact[yystate];
+  if (yypact_value_is_default (yyn))
+    goto yydefault;
+
+  /* Not known => get a lookahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
+  if (yychar == YYEMPTY)
+    {
+      YYDPRINTF ((stderr, "Reading a token: "));
+      yychar = yylex ();
+    }
+
+  if (yychar <= YYEOF)
+    {
+      yychar = yytoken = YYEOF;
+      YYDPRINTF ((stderr, "Now at end of input.\n"));
+    }
+  else
+    {
+      yytoken = YYTRANSLATE (yychar);
+      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+    }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0)
+    {
+      if (yytable_value_is_error (yyn))
+        goto yyerrlab;
+      yyn = -yyn;
+      goto yyreduce;
+    }
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  /* Shift the lookahead token.  */
+  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+  /* Discard the shifted token.  */
+  yychar = YYEMPTY;
+
+  yystate = yyn;
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+  *++yyvsp = yylval;
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
+  *++yylsp = yylloc;
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     '$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1-yylen];
+
+  /* Default location.  */
+  YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn)
+    {
+        case 3:
+#line 39 "emp_ematch.y" /* yacc.c:1646  */
+    { ematch_root = (yyvsp[0].e); }
+#line 1347 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 4:
+#line 41 "emp_ematch.y" /* yacc.c:1646  */
+    {
+			ematch_root = (yyvsp[-1].e);
+			YYACCEPT;
+		}
+#line 1356 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 5:
+#line 49 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.e) = (yyvsp[0].e); }
+#line 1362 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 6:
+#line 51 "emp_ematch.y" /* yacc.c:1646  */
+    {
+			(yyvsp[-2].e)->relation = (yyvsp[-1].i);
+			(yyvsp[-2].e)->next = (yyvsp[0].e);
+			(yyval.e) = (yyvsp[-2].e);
+		}
+#line 1372 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 7:
+#line 60 "emp_ematch.y" /* yacc.c:1646  */
+    {
+			(yyvsp[-3].b)->next = (yyvsp[-1].b);
+			(yyval.e) = new_ematch((yyvsp[-3].b), (yyvsp[-4].i));
+			if ((yyval.e) == NULL)
+				YYABORT;
+		}
+#line 1383 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 8:
+#line 67 "emp_ematch.y" /* yacc.c:1646  */
+    {
+			(yyval.e) = new_ematch(NULL, (yyvsp[-3].i));
+			if ((yyval.e) == NULL)
+				YYABORT;
+			(yyval.e)->child = (yyvsp[-1].e);
+		}
+#line 1394 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 9:
+#line 77 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.b) = (yyvsp[0].b); }
+#line 1400 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 10:
+#line 79 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyvsp[-1].b)->next = (yyvsp[0].b); }
+#line 1406 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 11:
+#line 84 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.i) = TCF_EM_REL_AND; }
+#line 1412 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 12:
+#line 86 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.i) = TCF_EM_REL_OR; }
+#line 1418 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 13:
+#line 91 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.i) = 0; }
+#line 1424 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+  case 14:
+#line 93 "emp_ematch.y" /* yacc.c:1646  */
+    { (yyval.i) = 1; }
+#line 1430 "emp_ematch.yacc.c" /* yacc.c:1646  */
+    break;
+
+
+#line 1434 "emp_ematch.yacc.c" /* yacc.c:1646  */
+      default: break;
+    }
+  /* User semantic actions sometimes alter yychar, and that requires
+     that yytoken be updated with the new translation.  We take the
+     approach of translating immediately before every use of yytoken.
+     One alternative is translating here after every semantic action,
+     but that translation would be missed if the semantic action invokes
+     YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+     if it invokes YYBACKUP.  In the case of YYABORT or YYACCEPT, an
+     incorrect destructor might then be invoked immediately.  In the
+     case of YYERROR or YYBACKUP, subsequent parser actions might lead
+     to an incorrect destructor call or verbose syntax error message
+     before the lookahead is translated.  */
+  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+  *++yylsp = yyloc;
+
+  /* Now 'shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*--------------------------------------.
+| yyerrlab -- here on detecting error.  |
+`--------------------------------------*/
+yyerrlab:
+  /* Make sure we have latest lookahead translation.  See comments at
+     user semantic actions for why this is necessary.  */
+  yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
+
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus)
+    {
+      ++yynerrs;
+#if ! YYERROR_VERBOSE
+      yyerror (YY_("syntax error"));
+#else
+# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \
+                                        yyssp, yytoken)
+      {
+        char const *yymsgp = YY_("syntax error");
+        int yysyntax_error_status;
+        yysyntax_error_status = YYSYNTAX_ERROR;
+        if (yysyntax_error_status == 0)
+          yymsgp = yymsg;
+        else if (yysyntax_error_status == 1)
+          {
+            if (yymsg != yymsgbuf)
+              YYSTACK_FREE (yymsg);
+            yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+            if (!yymsg)
+              {
+                yymsg = yymsgbuf;
+                yymsg_alloc = sizeof yymsgbuf;
+                yysyntax_error_status = 2;
+              }
+            else
+              {
+                yysyntax_error_status = YYSYNTAX_ERROR;
+                yymsgp = yymsg;
+              }
+          }
+        yyerror (yymsgp);
+        if (yysyntax_error_status == 2)
+          goto yyexhaustedlab;
+      }
+# undef YYSYNTAX_ERROR
+#endif
+    }
+
+  yyerror_range[1] = yylloc;
+
+  if (yyerrstatus == 3)
+    {
+      /* If just tried and failed to reuse lookahead token after an
+         error, discard it.  */
+
+      if (yychar <= YYEOF)
+        {
+          /* Return failure if at end of input.  */
+          if (yychar == YYEOF)
+            YYABORT;
+        }
+      else
+        {
+          yydestruct ("Error: discarding",
+                      yytoken, &yylval, &yylloc);
+          yychar = YYEMPTY;
+        }
+    }
+
+  /* Else will try to reuse lookahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR.  |
+`---------------------------------------------------*/
+yyerrorlab:
+
+  /* Pacify compilers like GCC when the user code never invokes
+     YYERROR and the label yyerrorlab therefore never appears in user
+     code.  */
+  if (/*CONSTCOND*/ 0)
+     goto yyerrorlab;
+
+  yyerror_range[1] = yylsp[1-yylen];
+  /* Do not reclaim the symbols of the rule whose action triggered
+     this YYERROR.  */
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+  yystate = *yyssp;
+  goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR.  |
+`-------------------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;      /* Each real token shifted decrements this.  */
+
+  for (;;)
+    {
+      yyn = yypact[yystate];
+      if (!yypact_value_is_default (yyn))
+        {
+          yyn += YYTERROR;
+          if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+            {
+              yyn = yytable[yyn];
+              if (0 < yyn)
+                break;
+            }
+        }
+
+      /* Pop the current state because it cannot handle the error token.  */
+      if (yyssp == yyss)
+        YYABORT;
+
+      yyerror_range[1] = *yylsp;
+      yydestruct ("Error: popping",
+                  yystos[yystate], yyvsp, yylsp);
+      YYPOPSTACK (1);
+      yystate = *yyssp;
+      YY_STACK_PRINT (yyss, yyssp);
+    }
+
+  YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
+  *++yyvsp = yylval;
+  YY_IGNORE_MAYBE_UNINITIALIZED_END
+
+  yyerror_range[2] = yylloc;
+  /* Using YYLLOC is tempting, but would change the location of
+     the lookahead.  YYLOC is available though.  */
+  YYLLOC_DEFAULT (yyloc, yyerror_range, 2);
+  *++yylsp = yyloc;
+
+  /* Shift the error token.  */
+  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#if !defined yyoverflow || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here.  |
+`-------------------------------------------------*/
+yyexhaustedlab:
+  yyerror (YY_("memory exhausted"));
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+  if (yychar != YYEMPTY)
+    {
+      /* Make sure we have latest lookahead translation.  See comments at
+         user semantic actions for why this is necessary.  */
+      yytoken = YYTRANSLATE (yychar);
+      yydestruct ("Cleanup: discarding lookahead",
+                  yytoken, &yylval, &yylloc);
+    }
+  /* Do not reclaim the symbols of the rule whose action triggered
+     this YYABORT or YYACCEPT.  */
+  YYPOPSTACK (yylen);
+  YY_STACK_PRINT (yyss, yyssp);
+  while (yyssp != yyss)
+    {
+      yydestruct ("Cleanup: popping",
+                  yystos[*yyssp], yyvsp, yylsp);
+      YYPOPSTACK (1);
+    }
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+  if (yymsg != yymsgbuf)
+    YYSTACK_FREE (yymsg);
+#endif
+  return yyresult;
+}
+#line 95 "emp_ematch.y" /* yacc.c:1906  */
+
+
+ void yyerror(const char *s)
+ {
+	 ematch_err = strdup(s);
+ }
diff --git a/tc/emp_ematch.yacc.h b/tc/emp_ematch.yacc.h
new file mode 100644
index 00000000..9da13f7f
--- /dev/null
+++ b/tc/emp_ematch.yacc.h
@@ -0,0 +1,94 @@
+/* A Bison parser, made by GNU Bison 3.0.4.  */
+
+/* Bison interface for Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+#ifndef YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED
+# define YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED
+/* Debug traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 1
+#endif
+#if YYDEBUG
+extern int ematch_debug;
+#endif
+
+/* Token type.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+  enum yytokentype
+  {
+    ERROR = 258,
+    ATTRIBUTE = 259,
+    AND = 260,
+    OR = 261,
+    NOT = 262
+  };
+#endif
+
+/* Value type.  */
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+
+union YYSTYPE
+{
+#line 14 "emp_ematch.y" /* yacc.c:1909  */
+
+	unsigned int i;
+	struct bstr *b;
+	struct ematch *e;
+
+#line 68 "emp_ematch.yacc.h" /* yacc.c:1909  */
+};
+
+typedef union YYSTYPE YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1
+# define YYSTYPE_IS_DECLARED 1
+#endif
+
+/* Location type.  */
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE YYLTYPE;
+struct YYLTYPE
+{
+  int first_line;
+  int first_column;
+  int last_line;
+  int last_column;
+};
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+extern YYSTYPE ematch_lval;
+extern YYLTYPE ematch_lloc;
+int ematch_parse (void);
+
+#endif /* !YY_EMATCH_EMP_EMATCH_YACC_H_INCLUDED  */
diff --git a/tc/emp_ematch.yacc.output b/tc/emp_ematch.yacc.output
new file mode 100644
index 00000000..96aca00b
--- /dev/null
+++ b/tc/emp_ematch.yacc.output
@@ -0,0 +1,243 @@
+Terminals unused in grammar
+
+   ERROR
+
+
+Grammar
+
+    0 $accept: input $end
+
+    1 input: %empty
+    2      | expr
+    3      | expr error
+
+    4 expr: match
+    5     | match relation expr
+
+    6 match: invert ATTRIBUTE '(' args ')'
+    7      | invert '(' expr ')'
+
+    8 args: ATTRIBUTE
+    9     | ATTRIBUTE args
+
+   10 relation: AND
+   11         | OR
+
+   12 invert: %empty
+   13       | NOT
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+'(' (40) 6 7
+')' (41) 6 7
+error (256) 3
+ERROR (258)
+ATTRIBUTE (259) 6 8 9
+AND (260) 10
+OR (261) 11
+NOT (262) 13
+
+
+Nonterminals, with rules where they appear
+
+$accept (10)
+    on left: 0
+input (11)
+    on left: 1 2 3, on right: 0
+expr (12)
+    on left: 4 5, on right: 2 3 5 7
+match (13)
+    on left: 6 7, on right: 4 5
+args (14)
+    on left: 8 9, on right: 6 9
+relation (15)
+    on left: 10 11, on right: 5
+invert (16)
+    on left: 12 13, on right: 6 7
+
+
+State 0
+
+    0 $accept: . input $end
+
+    NOT  shift, and go to state 1
+
+    $end      reduce using rule 1 (input)
+    $default  reduce using rule 12 (invert)
+
+    input   go to state 2
+    expr    go to state 3
+    match   go to state 4
+    invert  go to state 5
+
+
+State 1
+
+   13 invert: NOT .
+
+    $default  reduce using rule 13 (invert)
+
+
+State 2
+
+    0 $accept: input . $end
+
+    $end  shift, and go to state 6
+
+
+State 3
+
+    2 input: expr .
+    3      | expr . error
+
+    error  shift, and go to state 7
+
+    $end  reduce using rule 2 (input)
+
+
+State 4
+
+    4 expr: match .
+    5     | match . relation expr
+
+    AND  shift, and go to state 8
+    OR   shift, and go to state 9
+
+    $default  reduce using rule 4 (expr)
+
+    relation  go to state 10
+
+
+State 5
+
+    6 match: invert . ATTRIBUTE '(' args ')'
+    7      | invert . '(' expr ')'
+
+    ATTRIBUTE  shift, and go to state 11
+    '('        shift, and go to state 12
+
+
+State 6
+
+    0 $accept: input $end .
+
+    $default  accept
+
+
+State 7
+
+    3 input: expr error .
+
+    $default  reduce using rule 3 (input)
+
+
+State 8
+
+   10 relation: AND .
+
+    $default  reduce using rule 10 (relation)
+
+
+State 9
+
+   11 relation: OR .
+
+    $default  reduce using rule 11 (relation)
+
+
+State 10
+
+    5 expr: match relation . expr
+
+    NOT  shift, and go to state 1
+
+    $default  reduce using rule 12 (invert)
+
+    expr    go to state 13
+    match   go to state 4
+    invert  go to state 5
+
+
+State 11
+
+    6 match: invert ATTRIBUTE . '(' args ')'
+
+    '('  shift, and go to state 14
+
+
+State 12
+
+    7 match: invert '(' . expr ')'
+
+    NOT  shift, and go to state 1
+
+    $default  reduce using rule 12 (invert)
+
+    expr    go to state 15
+    match   go to state 4
+    invert  go to state 5
+
+
+State 13
+
+    5 expr: match relation expr .
+
+    $default  reduce using rule 5 (expr)
+
+
+State 14
+
+    6 match: invert ATTRIBUTE '(' . args ')'
+
+    ATTRIBUTE  shift, and go to state 16
+
+    args  go to state 17
+
+
+State 15
+
+    7 match: invert '(' expr . ')'
+
+    ')'  shift, and go to state 18
+
+
+State 16
+
+    8 args: ATTRIBUTE .
+    9     | ATTRIBUTE . args
+
+    ATTRIBUTE  shift, and go to state 16
+
+    $default  reduce using rule 8 (args)
+
+    args  go to state 19
+
+
+State 17
+
+    6 match: invert ATTRIBUTE '(' args . ')'
+
+    ')'  shift, and go to state 20
+
+
+State 18
+
+    7 match: invert '(' expr ')' .
+
+    $default  reduce using rule 7 (match)
+
+
+State 19
+
+    9 args: ATTRIBUTE args .
+
+    $default  reduce using rule 9 (args)
+
+
+State 20
+
+    6 match: invert ATTRIBUTE '(' args ')' .
+
+    $default  reduce using rule 6 (match)
diff --git a/tc/m_action.c b/tc/m_action.c
index e8c94e57..07e07457 100644
--- a/tc/m_action.c
+++ b/tc/m_action.c
@@ -29,9 +29,6 @@
 #include "tc_util.h"
 
 static struct action_util *action_list;
-#ifdef ANDROID
-extern struct action_util mirred_action_util;
-#endif
 
 #ifdef CONFIG_GACT
 int gact_ld; /* f*ckin backward compatibility */
@@ -88,14 +85,6 @@ static int parse_noaopt(struct action_util *au, int *argc_p, char ***argv_p, int
 
 static struct action_util *get_action_kind(char *str)
 {
-#ifdef ANDROID
-	if (!strcmp(str, "mirred")) {
-		return &mirred_action_util;
-	} else {
-		fprintf(stderr, "Android does not support action '%s'", str);
-		return NULL;
-	}
-#endif
 	static void *aBODY;
 	void *dlh;
 	char buf[256];
diff --git a/tc/static-syms.h b/tc/static-syms.h
new file mode 100644
index 00000000..2aa735f3
--- /dev/null
+++ b/tc/static-syms.h
@@ -0,0 +1,72 @@
+extern char police_action_util[] __attribute__((weak)); if (!strcmp(sym, "police_action_util")) return police_action_util;
+extern char gact_action_util[] __attribute__((weak)); if (!strcmp(sym, "gact_action_util")) return gact_action_util;
+extern char mirred_action_util[] __attribute__((weak)); if (!strcmp(sym, "mirred_action_util")) return mirred_action_util;
+extern char tunnel_key_action_util[] __attribute__((weak)); if (!strcmp(sym, "tunnel_key_action_util")) return tunnel_key_action_util;
+extern char nat_action_util[] __attribute__((weak)); if (!strcmp(sym, "nat_action_util")) return nat_action_util;
+extern char simple_action_util[] __attribute__((weak)); if (!strcmp(sym, "simple_action_util")) return simple_action_util;
+extern char ipt_action_util[] __attribute__((weak)); if (!strcmp(sym, "ipt_action_util")) return ipt_action_util;
+extern char bpf_action_util[] __attribute__((weak)); if (!strcmp(sym, "bpf_action_util")) return bpf_action_util;
+extern char connmark_action_util[] __attribute__((weak)); if (!strcmp(sym, "connmark_action_util")) return connmark_action_util;
+extern char ife_action_util[] __attribute__((weak)); if (!strcmp(sym, "ife_action_util")) return ife_action_util;
+extern char sample_action_util[] __attribute__((weak)); if (!strcmp(sym, "sample_action_util")) return sample_action_util;
+extern char skbedit_action_util[] __attribute__((weak)); if (!strcmp(sym, "skbedit_action_util")) return skbedit_action_util;
+extern char ipt_action_util[] __attribute__((weak)); if (!strcmp(sym, "ipt_action_util")) return ipt_action_util;
+extern char pedit_action_util[] __attribute__((weak)); if (!strcmp(sym, "pedit_action_util")) return pedit_action_util;
+extern char csum_action_util[] __attribute__((weak)); if (!strcmp(sym, "csum_action_util")) return csum_action_util;
+extern char xt_action_util[] __attribute__((weak)); if (!strcmp(sym, "xt_action_util")) return xt_action_util;
+extern char vlan_action_util[] __attribute__((weak)); if (!strcmp(sym, "vlan_action_util")) return vlan_action_util;
+extern char skbmod_action_util[] __attribute__((weak)); if (!strcmp(sym, "skbmod_action_util")) return skbmod_action_util;
+extern char canid_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "canid_ematch_util")) return canid_ematch_util;
+extern char cmp_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "cmp_ematch_util")) return cmp_ematch_util;
+extern char u32_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "u32_ematch_util")) return u32_ematch_util;
+extern char meta_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "meta_ematch_util")) return meta_ematch_util;
+extern char nbyte_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "nbyte_ematch_util")) return nbyte_ematch_util;
+extern char ipset_ematch_util[] __attribute__((weak)); if (!strcmp(sym, "ipset_ematch_util")) return ipset_ematch_util;
+extern char bpf_exec_util[] __attribute__((weak)); if (!strcmp(sym, "bpf_exec_util")) return bpf_exec_util;
+extern char p_pedit_udp[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_udp")) return p_pedit_udp;
+extern char p_pedit_ip[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_ip")) return p_pedit_ip;
+extern char p_pedit_ip6[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_ip6")) return p_pedit_ip6;
+extern char p_pedit_tcp[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_tcp")) return p_pedit_tcp;
+extern char p_pedit_icmp[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_icmp")) return p_pedit_icmp;
+extern char p_pedit_eth[] __attribute__((weak)); if (!strcmp(sym, "p_pedit_eth")) return p_pedit_eth;
+extern char fq_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "fq_qdisc_util")) return fq_qdisc_util;
+extern char mqprio_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "mqprio_qdisc_util")) return mqprio_qdisc_util;
+extern char sfq_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "sfq_qdisc_util")) return sfq_qdisc_util;
+extern char hfsc_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "hfsc_qdisc_util")) return hfsc_qdisc_util;
+extern char hhf_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "hhf_qdisc_util")) return hhf_qdisc_util;
+extern char pie_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "pie_qdisc_util")) return pie_qdisc_util;
+extern char fq_codel_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "fq_codel_qdisc_util")) return fq_codel_qdisc_util;
+extern char rr_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "rr_qdisc_util")) return rr_qdisc_util;
+extern char clsact_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "clsact_qdisc_util")) return clsact_qdisc_util;
+extern char dsmark_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "dsmark_qdisc_util")) return dsmark_qdisc_util;
+extern char red_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "red_qdisc_util")) return red_qdisc_util;
+extern char choke_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "choke_qdisc_util")) return choke_qdisc_util;
+extern char codel_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "codel_qdisc_util")) return codel_qdisc_util;
+extern char htb_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "htb_qdisc_util")) return htb_qdisc_util;
+extern char tbf_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "tbf_qdisc_util")) return tbf_qdisc_util;
+extern char sfb_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "sfb_qdisc_util")) return sfb_qdisc_util;
+extern char qfq_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "qfq_qdisc_util")) return qfq_qdisc_util;
+extern char drr_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "drr_qdisc_util")) return drr_qdisc_util;
+extern char bfifo_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "bfifo_qdisc_util")) return bfifo_qdisc_util;
+extern char pfifo_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "pfifo_qdisc_util")) return pfifo_qdisc_util;
+extern char pfifo_head_drop_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "pfifo_head_drop_qdisc_util")) return pfifo_head_drop_qdisc_util;
+extern char pfifo_fast_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "pfifo_fast_qdisc_util")) return pfifo_fast_qdisc_util;
+extern char multiq_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "multiq_qdisc_util")) return multiq_qdisc_util;
+extern char atm_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "atm_qdisc_util")) return atm_qdisc_util;
+extern char gred_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "gred_qdisc_util")) return gred_qdisc_util;
+extern char cbq_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "cbq_qdisc_util")) return cbq_qdisc_util;
+extern char prio_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "prio_qdisc_util")) return prio_qdisc_util;
+extern char ingress_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "ingress_qdisc_util")) return ingress_qdisc_util;
+extern char netem_qdisc_util[] __attribute__((weak)); if (!strcmp(sym, "netem_qdisc_util")) return netem_qdisc_util;
+extern char flow_filter_util[] __attribute__((weak)); if (!strcmp(sym, "flow_filter_util")) return flow_filter_util;
+extern char tcindex_filter_util[] __attribute__((weak)); if (!strcmp(sym, "tcindex_filter_util")) return tcindex_filter_util;
+extern char matchall_filter_util[] __attribute__((weak)); if (!strcmp(sym, "matchall_filter_util")) return matchall_filter_util;
+extern char u32_filter_util[] __attribute__((weak)); if (!strcmp(sym, "u32_filter_util")) return u32_filter_util;
+extern char rsvp_filter_util[] __attribute__((weak)); if (!strcmp(sym, "rsvp_filter_util")) return rsvp_filter_util;
+extern char rsvp6_filter_util[] __attribute__((weak)); if (!strcmp(sym, "rsvp6_filter_util")) return rsvp6_filter_util;
+extern char cgroup_filter_util[] __attribute__((weak)); if (!strcmp(sym, "cgroup_filter_util")) return cgroup_filter_util;
+extern char route_filter_util[] __attribute__((weak)); if (!strcmp(sym, "route_filter_util")) return route_filter_util;
+extern char basic_filter_util[] __attribute__((weak)); if (!strcmp(sym, "basic_filter_util")) return basic_filter_util;
+extern char flower_filter_util[] __attribute__((weak)); if (!strcmp(sym, "flower_filter_util")) return flower_filter_util;
+extern char bpf_filter_util[] __attribute__((weak)); if (!strcmp(sym, "bpf_filter_util")) return bpf_filter_util;
+extern char fw_filter_util[] __attribute__((weak)); if (!strcmp(sym, "fw_filter_util")) return fw_filter_util;
diff --git a/tc/tc.c b/tc/tc.c
index 82a30042..32924164 100644
--- a/tc/tc.c
+++ b/tc/tc.c
@@ -51,13 +51,6 @@ static void *BODY;	/* cached handle dlopen(NULL) */
 static struct qdisc_util *qdisc_list;
 static struct filter_util *filter_list;
 
-#ifdef ANDROID
-extern struct qdisc_util cbq_qdisc_util;
-extern struct qdisc_util htb_qdisc_util;
-extern struct qdisc_util ingress_qdisc_util;
-extern struct filter_util u32_filter_util;
-#endif
-
 static int print_noqopt(struct qdisc_util *qu, FILE *f,
 			struct rtattr *opt)
 {
@@ -112,18 +105,6 @@ struct qdisc_util *get_qdisc_kind(const char *str)
 	char buf[256];
 	struct qdisc_util *q;
 
-#ifdef ANDROID
-	if (!strcmp(str, "cbq"))
-		return &cbq_qdisc_util;
-	else if (!strcmp(str, "htb"))
-		return &htb_qdisc_util;
-	else if (!strcmp(str, "ingress"))
-		return &ingress_qdisc_util;
-	else {
-		fprintf(stderr, "Android does not support qdisc '%s'\n", str);
-		return NULL;
-	}
-#endif
 	for (q = qdisc_list; q; q = q->next)
 		if (strcmp(q->id, str) == 0)
 			return q;
@@ -167,14 +148,6 @@ struct filter_util *get_filter_kind(const char *str)
 	void *dlh;
 	char buf[256];
 	struct filter_util *q;
-#ifdef ANDROID
-	if (!strcmp(str, "u32"))
-		return &u32_filter_util;
-	else {
-		fprintf(stderr, "Android does not support filter '%s'\n", str);
-		return NULL;
-	}
-#endif
 
 	for (q = filter_list; q; q = q->next)
 		if (strcmp(q->id, str) == 0)
@@ -214,11 +187,7 @@ noexist:
 static void usage(void)
 {
 	fprintf(stderr, "Usage: tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
-#ifdef ANDROID
-			"       tc [-force]\n"
-#else
 			"       tc [-force] -batch filename\n"
-#endif
 			"where  OBJECT := { qdisc | class | filter | action | monitor | exec }\n"
 	                "       OPTIONS := { -s[tatistics] | -d[etails] | -r[aw] | -p[retty] | -b[atch] [filename] | -n[etns] name |\n"
 			"                    -nm | -nam[es] | { -cf | -conf } path }\n");
@@ -248,7 +217,6 @@ static int do_cmd(int argc, char **argv)
 	return -1;
 }
 
-#ifndef ANDROID
 static int batch(const char *name)
 {
 	char *line = NULL;
@@ -293,15 +261,12 @@ static int batch(const char *name)
 	rtnl_close(&rth);
 	return ret;
 }
-#endif
 
 
 int main(int argc, char **argv)
 {
 	int ret;
-#ifndef ANDROID
 	char *batch_file = NULL;
-#endif
 
 	while (argc > 1) {
 		if (argv[1][0] != '-')
@@ -327,13 +292,11 @@ int main(int argc, char **argv)
 			return 0;
 		} else if (matches(argv[1], "-force") == 0) {
 			++force;
-#ifndef ANDROID
 		} else if (matches(argv[1], "-batch") == 0) {
 			argc--;	argv++;
 			if (argc <= 1)
 				usage();
 			batch_file = argv[1];
-#endif
 		} else if (matches(argv[1], "-netns") == 0) {
 			NEXT_ARG();
 			if (netns_switch(argv[1]))
@@ -357,10 +320,8 @@ int main(int argc, char **argv)
 		argc--;	argv++;
 	}
 
-#ifndef ANDROID
 	if (batch_file)
 		return batch(batch_file);
-#endif
 
 	if (argc <= 1) {
 		usage();