Add enumsc and enumscstr.

src/flexdef.h

@@ -354,6 +354,8 @@
  *   of what we think based on references to it in the user's actions.
  * reject_really_used - same for REJECT
  * trace_hex - use hexadecimal numbers in trace/debug outputs instead of octals
+ * enumsc - Use enum for start cond (instead of define)
+ * enumstr - generate the enumsc string table for easier debug printout.
  */
 
 extern int printstats, syntaxerror, eofseen, ddebug, trace, nowarn,
@@ -368,6 +370,7 @@ extern int yymore_used, reject, real_reject, continued_action, in_rule;
 
 extern int yymore_really_used, reject_really_used;
 extern int trace_hex;
+extern int enumsc, enumscstr;
 
 /* Variables used in the flex input routines:
  * datapos - characters on current output line

src/main.c

@@ -48,6 +48,7 @@ void set_up_initial_allocations(void);
 
 
 /* these globals are all defined and commented in flexdef.h */
+int     enumsc, enumscstr;
 int     printstats, syntaxerror, eofseen, ddebug, trace, nowarn, spprdflt;
 int     interactive, lex_compat, posix_compat, do_yylineno,
 	useecs, fulltbl, usemecs;
@@ -461,7 +462,7 @@ void check_options (void)
 		       long_align ? "long int" : "short int");
 
     /* Define the start condition macros. */
-    {
+        if(!enumsc){
         struct Buf tmpbuf;
         buf_init(&tmpbuf, sizeof(char));
         for (i = 1; i <= lastsc; i++) {
@@ -479,6 +480,28 @@ void check_options (void)
         buf_m4_define(&m4defs_buf, "M4_YY_SC_DEFS", tmpbuf.elts);
         buf_destroy(&tmpbuf);
     }
+        else /* enumsc=1 */
+        { struct Buf tmpbuf;
+          buf_init(&tmpbuf, sizeof(char));
+
+          buf_strappend(&tmpbuf, "typedef enum {");
+          for (i = 1; i <= lastsc; i++)
+          { buf_strappend(&tmpbuf, scname[i]);
+            buf_strappend(&tmpbuf, ","); 
+          }
+          buf_strappend(&tmpbuf, "} sc_e;"); 
+          if(enumscstr)
+          { buf_strappend(&tmpbuf, "char *sc_name[]={");
+            for (i = 1; i <= lastsc; i++)
+            { buf_strappend(&tmpbuf, "\"");
+              buf_strappend(&tmpbuf, scname[i]);
+              buf_strappend(&tmpbuf, "\",");
+            }
+            buf_strappend(&tmpbuf, "};");
+          }
+          buf_m4_define(&m4defs_buf, "M4_YY_SC_DEFS", tmpbuf.elts);
+          buf_destroy(&tmpbuf);
+        }
 
     /* This is where we begin writing to the file. */
 

src/scan.l

@@ -380,6 +380,8 @@ M4QEND      "]""]"
 	debug		ddebug = option_sense;
 	default		spprdflt = ! option_sense;
 	ecs		useecs = option_sense;
+        enumsc          enumsc = option_sense;
+        enumscstr       enumscstr = enumsc = option_sense;
 	fast		{
 			useecs = usemecs = false;
 			use_read = fullspd = true;