2 * FML interpreter. Europagate, 1995
5 * Revision 1.7 1995/02/10 15:50:56 adam
6 * MARC interface implemented. Minor bugs fixed. fmltest can
7 * be used to format single MARC records. New function '\list'
10 * Revision 1.6 1995/02/09 16:06:07 adam
11 * FML can be called from the outside multiple times by the functions:
12 * fml_exec_call and fml_exec_call_str.
13 * An interactive parameter (-i) to fmltest starts a shell-like
14 * interface to FML by using the fml_exec_call_str function.
16 * Revision 1.5 1995/02/09 14:37:19 adam
17 * Removed .depend from cvs. Removed function fml_mk_list.
19 * Revision 1.4 1995/02/09 14:33:37 adam
20 * Split source fml.c and define relevant build-in functions in separate
21 * files. New operators mult, div, not, llen implemented.
23 * Revision 1.3 1995/02/09 13:07:15 adam
24 * Nodes are freed now. Many bugs fixed.
26 * Revision 1.2 1995/02/07 16:09:23 adam
27 * The \ character is no longer INCLUDED when terminating a token.
28 * Major changes in tokenization routines. Bug fixes in expressions
29 * with lists (fml_sub0).
31 * Revision 1.1.1.1 1995/02/06 13:48:10 adam
32 * First version of the FML interpreter. It's slow and memory isn't
33 * freed properly. In particular, the FML nodes aren't released yet.
42 #define FML_MAX_TOKEN 2048
44 #define FML_ATOM_BUF 12
52 struct fml_atom *next;
53 char buf[FML_ATOM_BUF];
56 struct fml_node *fml_tokenize (Fml fml);
57 struct fml_node *fml_node_alloc (Fml fml);
58 struct fml_atom *fml_atom_alloc (Fml fml, char *str);
59 int fml_atom_str (struct fml_atom *a, char *str);
60 void fml_atom_strx (struct fml_atom *a, char *str, int max);
61 int fml_atom_val (struct fml_atom *a);
62 void fml_node_delete (Fml fml, struct fml_node *fn);
63 struct fml_node *fml_node_copy (Fml fml, struct fml_node *fn);
64 struct fml_node *fml_mk_node_val (Fml fml, int val);
77 struct fml_atom *atom;
78 char sbuf[FML_ATOM_BUF*4];
83 struct fml_node *args;
84 struct fml_node *body;
85 struct fml_node *(*binary)(Fml fml, struct fml_node *l,
87 struct fml_node *(*prefix)(Fml fml, struct fml_node **lp,
91 struct fml_sym_tab *fml_sym_open (void);
92 void fml_sym_close (struct fml_sym_tab **tabp);
93 struct fml_sym_info *fml_sym_add (struct fml_sym_tab *tab, const char *s);
94 struct fml_sym_info *fml_sym_add_local (struct fml_sym_tab *tab,const char *s);
96 struct fml_sym_info *fml_sym_lookup (struct fml_sym_tab *tab, const char *s);
97 struct fml_sym_info *fml_sym_lookup_local (struct fml_sym_tab *tab,
99 void fml_sym_push (struct fml_sym_tab *tab);
100 void fml_sym_pop (struct fml_sym_tab *tab, void(*ph)(struct fml_sym_info *i));
102 void fml_pr_list (struct fml_node *p);
103 void fml_node_stat (Fml fml);
110 #define FML_FOREACH 6
114 #define FML_CBINARY 10
115 #define FML_CPREFIX 11
116 #define FML_BINARY 12
119 void fml_rel_init (Fml fml);
120 void fml_arit_init (Fml fml);
121 void fml_list_init (Fml fml);
122 void fml_lr_values (Fml fml, struct fml_node *l, int *left_val,
123 struct fml_node *r, int *right_val);
124 void fml_cmd_lex (struct fml_node **np, struct token *tp);
125 void fml_init_token (struct token *tp, Fml fml);
126 void fml_del_token (struct token *tp, Fml fml);
127 struct fml_node *fml_expr_term (Fml fml, struct fml_node **lp,
129 struct fml_node *fml_exec_group (struct fml_node *list, Fml fml);