2 * FML interpreter. Europagate, 1995
5 * Revision 1.10 1995/02/23 08:32:06 adam
8 * Revision 1.8 1995/02/10 18:15:52 adam
9 * FML function 'strcmp' implemented. This function can be used to
10 * test for existence of MARC fields.
12 * Revision 1.7 1995/02/10 15:50:56 adam
13 * MARC interface implemented. Minor bugs fixed. fmltest can
14 * be used to format single MARC records. New function '\list'
17 * Revision 1.6 1995/02/09 16:06:07 adam
18 * FML can be called from the outside multiple times by the functions:
19 * fml_exec_call and fml_exec_call_str.
20 * An interactive parameter (-i) to fmltest starts a shell-like
21 * interface to FML by using the fml_exec_call_str function.
23 * Revision 1.5 1995/02/09 14:37:19 adam
24 * Removed .depend from cvs. Removed function fml_mk_list.
26 * Revision 1.4 1995/02/09 14:33:37 adam
27 * Split source fml.c and define relevant build-in functions in separate
28 * files. New operators mult, div, not, llen implemented.
30 * Revision 1.3 1995/02/09 13:07:15 adam
31 * Nodes are freed now. Many bugs fixed.
33 * Revision 1.2 1995/02/07 16:09:23 adam
34 * The \ character is no longer INCLUDED when terminating a token.
35 * Major changes in tokenization routines. Bug fixes in expressions
36 * with lists (fml_sub0).
38 * Revision 1.1.1.1 1995/02/06 13:48:10 adam
39 * First version of the FML interpreter. It's slow and memory isn't
40 * freed properly. In particular, the FML nodes aren't released yet.
49 #define FML_MAX_TOKEN 2048
51 #define FML_ATOM_BUF 12
59 struct fml_atom *next;
60 char buf[FML_ATOM_BUF];
63 struct fml_node *fml_tokenize (Fml fml);
64 struct fml_node *fml_node_alloc (Fml fml);
65 struct fml_atom *fml_atom_alloc (Fml fml, char *str);
66 int fml_atom_str (struct fml_atom *a, char *str);
67 void fml_atom_strx (struct fml_atom *a, char *str, int max);
68 int fml_atom_val (struct fml_atom *a);
69 void fml_node_delete (Fml fml, struct fml_node *fn);
70 struct fml_node *fml_node_copy (Fml fml, struct fml_node *fn);
71 struct fml_node *fml_mk_node_val (Fml fml, int val);
72 int fml_atom_cmp (Fml fml, struct fml_atom *a1, struct fml_atom *a2);
85 struct fml_atom *atom;
86 char sbuf[FML_ATOM_BUF*4];
91 struct fml_node *args;
92 struct fml_node *body;
93 struct fml_node *(*binary)(Fml fml, struct fml_node *l,
95 struct fml_node *(*prefix)(Fml fml, struct fml_node **lp,
99 struct fml_sym_tab *fml_sym_open (void);
100 void fml_sym_close (struct fml_sym_tab **tabp);
101 struct fml_sym_info *fml_sym_add (struct fml_sym_tab *tab, const char *s);
102 struct fml_sym_info *fml_sym_add_local (struct fml_sym_tab *tab,const char *s);
104 struct fml_sym_info *fml_sym_lookup (struct fml_sym_tab *tab, const char *s);
105 struct fml_sym_info *fml_sym_lookup_local (struct fml_sym_tab *tab,
107 void fml_sym_push (struct fml_sym_tab *tab);
108 void fml_sym_pop (struct fml_sym_tab *tab, void(*ph)(struct fml_sym_info *i));
110 void fml_pr_list (struct fml_node *p);
111 void fml_node_stat (Fml fml);
118 #define FML_FOREACH 6
122 #define FML_CBINARY 10
123 #define FML_CPREFIX 11
124 #define FML_BINARY 12
127 void fml_rel_init (Fml fml);
128 void fml_arit_init (Fml fml);
129 void fml_list_init (Fml fml);
130 void fml_str_init (Fml fml);
131 void fml_lr_values (Fml fml, struct fml_node *l, int *left_val,
132 struct fml_node *r, int *right_val);
133 void fml_cmd_lex (struct fml_node **np, struct token *tp);
134 void fml_init_token (struct token *tp, Fml fml);
135 void fml_del_token (struct token *tp, Fml fml);
136 struct fml_node *fml_expr_term (Fml fml, struct fml_node **lp,
138 struct fml_node *fml_exec_group (struct fml_node *list, Fml fml);