2 * FML interpreter. Europagate, 1995
5 * Revision 1.4 1995/02/09 14:33:37 adam
6 * Split source fml.c and define relevant build-in functions in separate
7 * files. New operators mult, div, not, llen implemented.
9 * Revision 1.3 1995/02/09 13:07:15 adam
10 * Nodes are freed now. Many bugs fixed.
12 * Revision 1.2 1995/02/07 16:09:23 adam
13 * The \ character is no longer INCLUDED when terminating a token.
14 * Major changes in tokenization routines. Bug fixes in expressions
15 * with lists (fml_sub0).
17 * Revision 1.1.1.1 1995/02/06 13:48:10 adam
18 * First version of the FML interpreter. It's slow and memory isn't
19 * freed properly. In particular, the FML nodes aren't released yet.
25 #define FML_MAX_TOKEN 2048
27 #define FML_ATOM_BUF 12
35 struct fml_atom *next;
36 char buf[FML_ATOM_BUF];
39 struct fml_node *fml_tokenize (Fml fml);
40 struct fml_node *fml_node_alloc (Fml fml);
41 struct fml_atom *fml_atom_alloc (Fml fml, char *str);
42 int fml_atom_str (struct fml_atom *a, char *str);
43 void fml_atom_strx (struct fml_atom *a, char *str, int max);
44 int fml_atom_val (struct fml_atom *a);
45 struct fml_node *fml_mk_list (Fml fml, struct fml_node *fn);
46 void fml_node_delete (Fml fml, struct fml_node *fn);
47 struct fml_node *fml_node_copy (Fml fml, struct fml_node *fn);
48 struct fml_node *fml_mk_node_val (Fml fml, int val);
61 struct fml_atom *atom;
62 char sbuf[FML_ATOM_BUF*4];
67 struct fml_node *args;
68 struct fml_node *body;
69 struct fml_node *(*binary)(Fml fml, struct fml_node *l,
71 struct fml_node *(*prefix)(Fml fml, struct fml_node **lp,
75 struct fml_sym_tab *fml_sym_open (void);
76 void fml_sym_close (struct fml_sym_tab **tabp);
77 struct fml_sym_info *fml_sym_add (struct fml_sym_tab *tab, const char *s);
78 struct fml_sym_info *fml_sym_add_local (struct fml_sym_tab *tab,const char *s);
80 struct fml_sym_info *fml_sym_lookup (struct fml_sym_tab *tab, const char *s);
81 struct fml_sym_info *fml_sym_lookup_local (struct fml_sym_tab *tab,
83 void fml_sym_push (struct fml_sym_tab *tab);
84 void fml_sym_pop (struct fml_sym_tab *tab, void(*ph)(struct fml_sym_info *i));
86 void fml_pr_list (struct fml_node *p);
87 void fml_node_stat (Fml fml);
98 #define FML_CBINARY 10
99 #define FML_CPREFIX 11
100 #define FML_BINARY 12
103 void fml_rel_init (Fml fml);
104 void fml_arit_init (Fml fml);
105 void fml_list_init (Fml fml);
106 void fml_lr_values (Fml fml, struct fml_node *l, int *left_val,
107 struct fml_node *r, int *right_val);
108 void fml_cmd_lex (struct fml_node **np, struct token *tp);
109 void fml_init_token (struct token *tp, Fml fml);
110 void fml_del_token (struct token *tp, Fml fml);
111 struct fml_node *fml_expr_term (Fml fml, struct fml_node **lp,