File:
[LON-CAPA] /
loncom /
homework /
caparesponse /
caparesponse.c
Revision
1.7:
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Tue Dec 4 15:17:57 2001 UTC (22 years, 8 months ago) by
albertel
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MAIN
CVS tags:
version_0_99_0,
version_0_6_2,
version_0_6,
version_0_5_1,
version_0_5,
version_0_4,
stable_2002_spring,
stable_2002_july,
stable_2002_april,
STABLE,
HEAD
- GPL headers
1: /* The LearningOnline Network with CAPA
2: * CAPA wrapper code
3: * $Id: caparesponse.c,v 1.7 2001/12/04 15:17:57 albertel Exp $
4: *
5: * Copyright Michigan State University Board of Trustees
6: *
7: * This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: *
9: * LON-CAPA is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * LON-CAPA is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: * GNU General Public License for more details.
18: *
19: * You should have received a copy of the GNU General Public License
20: * along with LON-CAPA; if not, write to the Free Software
21: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: *
23: * /home/httpd/html/adm/gpl.txt
24: *
25: * http://www.lon-capa.org/
26: */
27:
28: #include <capaCommon.h>
29: #include <ranlib.h>
30:
31: PointsList_t * parse_pts_list (char *pts_list) {
32: PointsList_t *new=NULL, *end=NULL, *beforeend=NULL, *rlist=NULL;
33: char *idx_pts=pts_list;
34: int done=0;
35: /*fprintf(stderr,"ids %s\n",id_list);
36: fprintf(stderr,"pts %s\n",pts_list);*/
37: while (!done) {
38: int idx;
39: /*fprintf(stderr,"pts; %s\n",idx_pts);*/
40: new=gen_ptslist_str(idx_pts);
41: if (!new) break;
42: if (!rlist) { rlist=new; }
43: if (end) {
44: end->pts_next=new;
45: idx=end->pts_idx;
46: } else {
47: idx=-1;
48: }
49: end=new;
50: while (end) {
51: idx++;
52: end->pts_idx=idx;
53: /*fprintf(stderr,"end is:%d:%d:%s:%d\n",idx,end->pts_idx,end->pts_str,
54: end->pts_next);*/
55: beforeend=end;
56: end=end->pts_next;
57: }
58: end=beforeend;
59: idx_pts=strchr(idx_pts,';');
60: if (idx_pts) { idx_pts++; } else { done=1; }
61: }
62:
63: return rlist;
64: }
65:
66: int caparesponse_capa_check_answer(char *response,char *correct,
67: int type,int tol_type,double tolerance,
68: int sig_lbound,int sig_ubound,
69: char *ans_fmt, char *unit_str,
70: int calc, char *id_list, char *pts_list,
71: char *rndseed)
72:
73: {
74: long result,seed1,seed2;
75: Problem_t p;
76: char *error=NULL,filename[FILE_NAME_LENGTH];
77: FILE *fp;
78:
79: /*fprintf(stderr,"hi in caparesponse\n");*/
80: /*need to initialize unit parser*/
81: sprintf(filename,"/home/httpd/html/res/adm/includes/capa.units");
82: if ((fp=fopen(filename,"r"))==NULL) {
83: /* printf("Error: can't open %s\n",filename);*/
84: return (-1);
85: }
86: u_getunit(fp);
87: fclose(fp);
88: /* need to setup random generator (FIXME) should only do this if
89: it hasn't been yet*/
90: phrtsd(rndseed,&seed1,&seed2);
91: setall(seed1,seed2);
92:
93: /* assign_id_list and assign_pts_list exist in capaGrammerDef.y */
94: p.id_list=NULL;
95: p.pts_list=NULL;
96:
97: if (type == ANSWER_IS_FORMULA) {
98: p.id_list=id_list;
99: p.pts_list=parse_pts_list(pts_list);
100: }
101: p.ans_type = type;
102: p.answer = correct;
103: p.tol_type = tol_type;
104: p.tolerance = tolerance;
105: p.sig_lbound = sig_lbound;
106: p.sig_ubound = sig_ubound;
107: strncpy(p.ans_fmt,ans_fmt,ANSWER_STRING_LENG-1);
108: if (unit_str[0]!='\0') {
109: strncpy(p.unit_str,unit_str,ANSWER_STRING_LENG-1);
110: p.ans_unit = u_parse_unit(unit_str);
111: } else {
112: p.unit_str[0]='\0';
113: p.ans_unit=NULL;
114: }
115: p.calc = calc;
116:
117:
118: result=capa_check_answer(&p,response,&error);
119:
120: if (error!=NULL) {free(error);}
121:
122: return result;
123: }
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