#include #include PointsList_t * parse_pts_list (char *pts_list) { PointsList_t *new=NULL, *end=NULL, *beforeend=NULL, *rlist=NULL; char *idx_pts=pts_list; int done=0; /*fprintf(stderr,"ids %s\n",id_list); fprintf(stderr,"pts %s\n",pts_list);*/ while (!done) { int idx; /*fprintf(stderr,"pts; %s\n",idx_pts);*/ new=gen_ptslist_str(idx_pts); if (!new) break; if (!rlist) { rlist=new; } if (end) { end->pts_next=new; idx=end->pts_idx; } else { idx=-1; } end=new; while (end) { idx++; end->pts_idx=idx; /*fprintf(stderr,"end is:%d:%d:%s:%d\n",idx,end->pts_idx,end->pts_str, end->pts_next);*/ beforeend=end; end=end->pts_next; } end=beforeend; idx_pts=strchr(idx_pts,';'); if (idx_pts) { idx_pts++; } else { done=1; } } return rlist; } int caparesponse_capa_check_answer(char *response,char *correct, int type,int tol_type,double tolerance, int sig_lbound,int sig_ubound, char *ans_fmt, char *unit_str, int calc, char *id_list, char *pts_list, char *rndseed) { long result,seed1,seed2; Problem_t p; char *error=NULL,filename[FILE_NAME_LENGTH]; FILE *fp; /*fprintf(stderr,"hi in caparesponse\n");*/ /*need to initialize unit parser*/ sprintf(filename,"/home/httpd/html/res/adm/includes/capa.units"); if ((fp=fopen(filename,"r"))==NULL) { /* printf("Error: can't open %s\n",filename);*/ return (-1); } u_getunit(fp); fclose(fp); /* need to setup random generator (FIXME) should only do this if it hasn't been yet*/ phrtsd(rndseed,&seed1,&seed2); setall(seed1,seed2); /* assign_id_list and assign_pts_list exist in capaGrammerDef.y */ p.id_list=NULL; p.pts_list=NULL; if (type == ANSWER_IS_FORMULA) { p.id_list=id_list; p.pts_list=parse_pts_list(pts_list); } p.ans_type = type; p.answer = correct; p.tol_type = tol_type; p.tolerance = tolerance; p.sig_lbound = sig_lbound; p.sig_ubound = sig_ubound; strncpy(p.ans_fmt,ans_fmt,ANSWER_STRING_LENG-1); if (unit_str[0]!='\0') { strncpy(p.unit_str,unit_str,ANSWER_STRING_LENG-1); p.ans_unit = u_parse_unit(unit_str); } else { p.unit_str[0]='\0'; p.ans_unit=NULL; } p.calc = calc; result=capa_check_answer(&p,response,&error); if (error!=NULL) {free(error);} return result; } 500 Internal Server Error

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