3 * $Id: field-parse.c,v 1.4 2004/04/08 01:36:15 mdw Exp $
5 * Parse field descriptions
7 * (c) 2004 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
14 * Catacomb is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * Catacomb is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with Catacomb; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Header files ------------------------------------------------------*/
34 /*----- Main code ---------------------------------------------------------*/
36 /* --- @field_parse@ --- *
38 * Arguments: @qd_parse *qd@ = parser context
40 * Returns: Field pointer if OK, or null.
42 * Use: Parses a field description, which has the form
44 * * `prime', `niceprime' or `binpoly'
49 field
*field_parse(qd_parse
*qd
)
52 mp
*m
= MP_NEW
, *b
= MP_NEW
;
54 switch (qd_enum(qd
, "prime,niceprime,binpoly,binnorm")) {
57 if ((m
= qd_getmp(qd
)) == 0) goto done
;
62 if ((m
= qd_getmp(qd
)) == 0) goto done
;
63 f
= field_niceprime(m
);
67 if ((m
= qd_getmp(qd
)) == 0) goto done
;
72 if ((m
= qd_getmp(qd
)) == 0) goto done
;
74 if ((b
= qd_getmp(qd
)) == 0) goto done
;
75 f
= field_binnorm(m
, b
);
80 if (!f
) qd
->e
= "bad field parameters";
87 /*----- That's all, folks -------------------------------------------------*/