2 * Copyright (c) 1995, the EUROPAGATE consortium (see below).
4 * The EUROPAGATE consortium members are:
6 * University College Dublin
7 * Danmarks Teknologiske Videnscenter
8 * An Chomhairle Leabharlanna
9 * Consejo Superior de Investigaciones Cientificas
11 * Permission to use, copy, modify, distribute, and sell this software and
12 * its documentation, in whole or in part, for any purpose, is hereby granted,
15 * 1. This copyright and permission notice appear in all copies of the
16 * software and its documentation. Notices of copyright or attribution
17 * which appear at the beginning of any file must remain unchanged.
19 * 2. The names of EUROPAGATE or the project partners may not be used to
20 * endorse or promote products derived from this software without specific
21 * prior written permission.
23 * 3. Users of this software (implementors and gateway operators) agree to
24 * inform the EUROPAGATE consortium of their use of the software. This
25 * information will be used to evaluate the EUROPAGATE project and the
26 * software, and to plan further developments. The consortium may use
27 * the information in later publications.
29 * 4. Users of this software agree to make their best efforts, when
30 * documenting their use of the software, to acknowledge the EUROPAGATE
31 * consortium, and the role played by the software in their work.
33 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
34 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
35 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
36 * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
37 * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
38 * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
39 * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
40 * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
41 * USE OR PERFORMANCE OF THIS SOFTWARE.
45 * FML interpreter. Europagate, 1995
48 * Revision 1.5 1995/05/16 09:39:33 adam
51 * Revision 1.4 1995/02/23 08:32:05 adam
54 * Revision 1.2 1995/02/10 15:50:55 adam
55 * MARC interface implemented. Minor bugs fixed. fmltest can
56 * be used to format single MARC records. New function '\list'
59 * Revision 1.1 1995/02/09 14:33:37 adam
60 * Split source fml.c and define relevant build-in functions in separate
61 * files. New operators mult, div, not, llen implemented.
71 static struct fml_node *fml_exec_indx (Fml fml, struct fml_node *l,
74 struct fml_node *list = l;
78 if (!l || !r || !r->is_atom)
80 fml_node_delete (fml, l);
81 fml_node_delete (fml, r);
84 indx = fml_atom_val (r->p[0]);
85 fml_node_delete (fml, r);
86 while (--indx >= 1 && list)
90 else if (list->is_atom)
92 fn = fml_node_alloc (fml);
94 fn->p[0] = list->p[0];
103 fml_node_delete (fml, l);
107 static struct fml_node *fml_exec_len (Fml fml, struct fml_node **lp,
114 fml_cmd_lex (lp, tp);
117 for (fn = tp->sub; fn; fn = fn->p[1])
120 else if (tp->kind == 'e')
122 struct fml_sym_info *info;
124 info = fml_sym_lookup (fml->sym_tab, tp->tokenbuf);
126 for (fn = info->body; fn; fn = fn->p[1])
132 sprintf (arg, "%d", len);
133 fn = fml_node_alloc (fml);
135 fn->p[0] = fml_atom_alloc (fml, arg);
136 fml_cmd_lex (lp, tp);
140 static struct fml_node *fml_exec_list (Fml fml, struct fml_node **lp,
143 struct fml_node *fn = NULL;
145 fml_cmd_lex (lp, tp);
147 fn = fml_node_copy (fml, tp->sub);
150 fn = fml_node_alloc (fml);
152 fn->p[0] = fml_atom_alloc (fml, tp->tokenbuf);
154 fml_cmd_lex (lp, tp);
158 void fml_list_init (Fml fml)
160 struct fml_sym_info *sym_info;
162 sym_info = fml_sym_add (fml->sym_tab, "index");
163 sym_info->kind = FML_CBINARY;
164 sym_info->binary = fml_exec_indx;
166 sym_info = fml_sym_add (fml->sym_tab, "llen");
167 sym_info->kind = FML_CPREFIX;
168 sym_info->prefix = fml_exec_len;
170 sym_info = fml_sym_add (fml->sym_tab, "list");
171 sym_info->kind = FML_CPREFIX;
172 sym_info->prefix = fml_exec_list;