2 * FML interpreter. Europagate, 1995
5 * Revision 1.12 1995/03/02 08:06:05 adam
6 * Fml function strsub implemented. New test files marc[45].fml.
7 * New test options in fmltest.
9 * Revision 1.11 1995/02/27 09:01:21 adam
10 * Regular expression support. Argument passing by name option. New FML
13 * Revision 1.10 1995/02/23 08:32:06 adam
16 * Revision 1.8 1995/02/10 18:15:52 adam
17 * FML function 'strcmp' implemented. This function can be used to
18 * test for existence of MARC fields.
20 * Revision 1.7 1995/02/10 15:50:56 adam
21 * MARC interface implemented. Minor bugs fixed. fmltest can
22 * be used to format single MARC records. New function '\list'
25 * Revision 1.6 1995/02/09 16:06:07 adam
26 * FML can be called from the outside multiple times by the functions:
27 * fml_exec_call and fml_exec_call_str.
28 * An interactive parameter (-i) to fmltest starts a shell-like
29 * interface to FML by using the fml_exec_call_str function.
31 * Revision 1.5 1995/02/09 14:37:19 adam
32 * Removed .depend from cvs. Removed function fml_mk_list.
34 * Revision 1.4 1995/02/09 14:33:37 adam
35 * Split source fml.c and define relevant build-in functions in separate
36 * files. New operators mult, div, not, llen implemented.
38 * Revision 1.3 1995/02/09 13:07:15 adam
39 * Nodes are freed now. Many bugs fixed.
41 * Revision 1.2 1995/02/07 16:09:23 adam
42 * The \ character is no longer INCLUDED when terminating a token.
43 * Major changes in tokenization routines. Bug fixes in expressions
44 * with lists (fml_sub0).
46 * Revision 1.1.1.1 1995/02/06 13:48:10 adam
47 * First version of the FML interpreter. It's slow and memory isn't
48 * freed properly. In particular, the FML nodes aren't released yet.
57 #define FML_MAX_TOKEN 2048
59 #define FML_ATOM_BUF 12
67 struct fml_atom *next;
68 char buf[FML_ATOM_BUF];
71 struct fml_node *fml_tokenize (Fml fml);
72 struct fml_node *fml_node_alloc (Fml fml);
73 struct fml_atom *fml_atom_alloc (Fml fml, char *str);
74 int fml_atom_str (struct fml_atom *a, char *str);
75 int fml_atom_len (struct fml_atom *a);
76 void fml_atom_strx (struct fml_atom *a, char *str, int max);
77 int fml_atom_val (struct fml_atom *a);
78 void fml_node_delete (Fml fml, struct fml_node *fn);
79 struct fml_node *fml_node_copy (Fml fml, struct fml_node *fn);
80 struct fml_node *fml_mk_node_val (Fml fml, int val);
81 int fml_atom_cmp (Fml fml, struct fml_atom *a1, struct fml_atom *a2);
82 struct fml_atom *fml_atom_strsub (Fml fml, struct fml_atom *a, int o, int l);
95 struct fml_atom *atom;
96 char sbuf[FML_ATOM_BUF*4];
101 struct fml_node *args;
102 struct fml_node *body;
103 struct fml_node *(*binary)(Fml fml, struct fml_node *l,
105 struct fml_node *(*prefix)(Fml fml, struct fml_node **lp,
109 struct fml_sym_tab *fml_sym_open (void);
110 void fml_sym_close (struct fml_sym_tab **tabp);
111 struct fml_sym_info *fml_sym_add (struct fml_sym_tab *tab, const char *s);
112 struct fml_sym_info *fml_sym_add_local (struct fml_sym_tab *tab,const char *s);
114 struct fml_sym_info *fml_sym_lookup (struct fml_sym_tab *tab, const char *s);
115 struct fml_sym_info *fml_sym_lookup_local (struct fml_sym_tab *tab,
117 void fml_sym_push (struct fml_sym_tab *tab);
118 void fml_sym_pop (struct fml_sym_tab *tab, void(*ph)(struct fml_sym_info *i));
120 void fml_pr_list (struct fml_node *p);
121 void fml_node_stat (Fml fml);
128 #define FML_FOREACH 6
132 #define FML_CBINARY 10
133 #define FML_CPREFIX 11
134 #define FML_BINARY 12
138 void fml_rel_init (Fml fml);
139 void fml_arit_init (Fml fml);
140 void fml_list_init (Fml fml);
141 void fml_str_init (Fml fml);
142 void fml_lr_values (Fml fml, struct fml_node *l, int *left_val,
143 struct fml_node *r, int *right_val);
144 void fml_cmd_lex (struct fml_node **np, struct token *tp);
145 void fml_cmd_lex_s (struct fml_node **np, struct token *tp, int esc_stop);
146 void fml_init_token (struct token *tp, Fml fml);
147 void fml_del_token (struct token *tp, Fml fml);
148 struct fml_node *fml_expr_term (Fml fml, struct fml_node **lp,
150 struct fml_node *fml_exec_group (struct fml_node *list, Fml fml);