2 * FML interpreter. Europagate, 1995
5 * Revision 1.6 1995/02/09 16:06:07 adam
6 * FML can be called from the outside multiple times by the functions:
7 * fml_exec_call and fml_exec_call_str.
8 * An interactive parameter (-i) to fmltest starts a shell-like
9 * interface to FML by using the fml_exec_call_str function.
11 * Revision 1.5 1995/02/09 14:37:19 adam
12 * Removed .depend from cvs. Removed function fml_mk_list.
14 * Revision 1.4 1995/02/09 14:33:37 adam
15 * Split source fml.c and define relevant build-in functions in separate
16 * files. New operators mult, div, not, llen implemented.
18 * Revision 1.3 1995/02/09 13:07:15 adam
19 * Nodes are freed now. Many bugs fixed.
21 * Revision 1.2 1995/02/07 16:09:23 adam
22 * The \ character is no longer INCLUDED when terminating a token.
23 * Major changes in tokenization routines. Bug fixes in expressions
24 * with lists (fml_sub0).
26 * Revision 1.1.1.1 1995/02/06 13:48:10 adam
27 * First version of the FML interpreter. It's slow and memory isn't
28 * freed properly. In particular, the FML nodes aren't released yet.
34 #define FML_MAX_TOKEN 2048
36 #define FML_ATOM_BUF 12
44 struct fml_atom *next;
45 char buf[FML_ATOM_BUF];
48 struct fml_node *fml_tokenize (Fml fml);
49 struct fml_node *fml_node_alloc (Fml fml);
50 struct fml_atom *fml_atom_alloc (Fml fml, char *str);
51 int fml_atom_str (struct fml_atom *a, char *str);
52 void fml_atom_strx (struct fml_atom *a, char *str, int max);
53 int fml_atom_val (struct fml_atom *a);
54 void fml_node_delete (Fml fml, struct fml_node *fn);
55 struct fml_node *fml_node_copy (Fml fml, struct fml_node *fn);
56 struct fml_node *fml_mk_node_val (Fml fml, int val);
69 struct fml_atom *atom;
70 char sbuf[FML_ATOM_BUF*4];
75 struct fml_node *args;
76 struct fml_node *body;
77 struct fml_node *(*binary)(Fml fml, struct fml_node *l,
79 struct fml_node *(*prefix)(Fml fml, struct fml_node **lp,
83 struct fml_sym_tab *fml_sym_open (void);
84 void fml_sym_close (struct fml_sym_tab **tabp);
85 struct fml_sym_info *fml_sym_add (struct fml_sym_tab *tab, const char *s);
86 struct fml_sym_info *fml_sym_add_local (struct fml_sym_tab *tab,const char *s);
88 struct fml_sym_info *fml_sym_lookup (struct fml_sym_tab *tab, const char *s);
89 struct fml_sym_info *fml_sym_lookup_local (struct fml_sym_tab *tab,
91 void fml_sym_push (struct fml_sym_tab *tab);
92 void fml_sym_pop (struct fml_sym_tab *tab, void(*ph)(struct fml_sym_info *i));
94 void fml_pr_list (struct fml_node *p);
95 void fml_node_stat (Fml fml);
102 #define FML_FOREACH 6
106 #define FML_CBINARY 10
107 #define FML_CPREFIX 11
108 #define FML_BINARY 12
111 void fml_rel_init (Fml fml);
112 void fml_arit_init (Fml fml);
113 void fml_list_init (Fml fml);
114 void fml_lr_values (Fml fml, struct fml_node *l, int *left_val,
115 struct fml_node *r, int *right_val);
116 void fml_cmd_lex (struct fml_node **np, struct token *tp);
117 void fml_init_token (struct token *tp, Fml fml);
118 void fml_del_token (struct token *tp, Fml fml);
119 struct fml_node *fml_expr_term (Fml fml, struct fml_node **lp,
121 struct fml_node *fml_exec_group (struct fml_node *list, Fml fml);