Initial commit for boundary support

mpc.h

@@ -18,7 +18,7 @@
 #include <errno.h>
 
 /*
-** Error Type
+** State Type
 */
 
 typedef struct {
@@ -27,6 +27,10 @@ typedef struct {
   int col;
 } mpc_state_t;
 
+/*
+** Error Type
+*/
+
 typedef struct {
   mpc_state_t state;
   int expected_num;
@@ -86,13 +90,6 @@ void mpc_cleanup(int n, ...);
 ** Basic Parsers
 */
 
-mpc_parser_t *mpc_pass(void);
-mpc_parser_t *mpc_fail(const char *m);
-mpc_parser_t *mpc_failf(const char *fmt, ...);
-mpc_parser_t *mpc_lift(mpc_ctor_t f);
-mpc_parser_t *mpc_lift_val(mpc_val_t *x);
-mpc_parser_t *mpc_state(void);
-
 mpc_parser_t *mpc_any(void);
 mpc_parser_t *mpc_char(char c);
 mpc_parser_t *mpc_range(char s, char e);
@@ -101,6 +98,18 @@ mpc_parser_t *mpc_noneof(const char *s);
 mpc_parser_t *mpc_satisfy(int(*f)(char));
 mpc_parser_t *mpc_string(const char *s);
 
+/*
+** Other Parsers
+*/
+
+mpc_parser_t *mpc_pass(void);
+mpc_parser_t *mpc_fail(const char *m);
+mpc_parser_t *mpc_failf(const char *fmt, ...);
+mpc_parser_t *mpc_lift(mpc_ctor_t f);
+mpc_parser_t *mpc_lift_val(mpc_val_t *x);
+mpc_parser_t *mpc_boundary(void);
+mpc_parser_t *mpc_state(void);
+
 /*
 ** Combinator Parsers
 */