Parser/parser.h

   1 #ifndef Py_PARSER_H
   2 #define Py_PARSER_H
   3 #ifdef __cplusplus
   4 extern "C" {
   5 #endif
   6
   7
   8 /* Parser interface */
   9
  10 #define MAXSTACK 500
  11
  12 typedef struct {
  13         int              s_state;       /* State in current DFA */
  14         dfa             *s_dfa;         /* Current DFA */
  15         struct _node    *s_parent;      /* Where to add next node */
  16 } stackentry;
  17
  18 typedef struct {
  19         stackentry      *s_top;         /* Top entry */
  20         stackentry       s_base[MAXSTACK];/* Array of stack entries */
  21                                         /* NB The stack grows down */
  22 } stack;
  23
  24 typedef struct {
  25         stack           p_stack;        /* Stack of parser states */
  26         grammar         *p_grammar;     /* Grammar to use */
  27         node            *p_tree;        /* Top of parse tree */
  28 #if 0 /* future keyword */
  29         int             p_generators;   /* 1 if yield is a keyword */
  30 #endif
  31 } parser_state;
  32
  33 parser_state *PyParser_New(grammar *g, int start);
  34 void PyParser_Delete(parser_state *ps);
  35 int PyParser_AddToken(parser_state *ps, int type, char *str, int lineno,
  36                       int *expected_ret);
  37 void PyGrammar_AddAccelerators(grammar *g);
  38
  39 #ifdef __cplusplus
  40 }
  41 #endif
  42 #endif /* !Py_PARSER_H */