version 1.8, 2000/02/22 18:13:20
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version 1.24, 2004/06/01 19:57:18
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/* Library of useful functions |
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Copyright (C) 1992-2000 Michigan State University |
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The CAPA system is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License as |
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published by the Free Software Foundation; either version 2 of the |
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License, or (at your option) any later version. |
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The CAPA system is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received a copy of the GNU General Public |
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License along with the CAPA system; see the file COPYING. If not, |
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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Boston, MA 02111-1307, USA. |
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As a special exception, you have permission to link this program |
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with the TtH/TtM library and distribute executables, as long as you |
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follow the requirements of the GNU GPL in regard to all of the |
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software in the executable aside from TtH/TtM. |
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*/ |
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/* =||>|===================== capaCommon.c =====================|<||= */ |
/* =||>|===================== capaCommon.c =====================|<||= */ |
/* created 1994 by Isaac Tsai */ |
/* created 1994 by Isaac Tsai */ |
/* 1994, 1995, 1996, 1997, 1998, 1999 copyrighted by Isaac Tsai */ |
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/* TODO: restructure capa_check_ans*() calls into one */ |
/* TODO: restructure capa_check_ans*() calls into one */ |
/* =||>|===================== capaCommon.c =====================|<||= */ |
/* =||>|===================== capaCommon.c =====================|<||= */ |
#include <ctype.h> |
#include <ctype.h> |
Line 25 int yyparse();
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Line 48 int yyparse();
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extern FILE *yyin; |
extern FILE *yyin; |
extern void yyrestart(); |
extern void yyrestart(); |
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extern FILE *dfp; |
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/*----------------------------------------------------------*/ |
/*----------------------------------------------------------*/ |
/* RETURN: -1 file error */ |
/* RETURN: -1 file error */ |
/* 0 success */ |
/* 0 success */ |
Line 596 int set;
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Line 621 int set;
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ans_p[length]='\0'; |
ans_p[length]='\0'; |
sprintf(fmtbuf, "%%%dc",(3*length-1)); |
sprintf(fmtbuf, "%%%dc",(3*length-1)); |
sscanf(oneline + MAX_STUDENT_NUMBER+1+length+1,fmtbuf,tries_p); |
sscanf(oneline + MAX_STUDENT_NUMBER+1+length+1,fmtbuf,tries_p); |
tries_p[3*length-1]; |
tries_p[3*length-1]='\0'; |
entry->answers = ans_p; |
entry->answers = ans_p; |
entry->tries = tries_p; |
entry->tries = tries_p; |
entry->e_probs = nq; |
entry->e_probs = nq; |
Line 1424 void capa_get_due_date(char *date_str,T_
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Line 1449 void capa_get_due_date(char *date_str,T_
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if ((duration > 0) && (student_number!=NULL)) { |
if ((duration > 0) && (student_number!=NULL)) { |
if (capa_get_login_time(student_number,set,&logintime)==1) { |
if (capa_get_login_time(student_number,set,&logintime)==1) { |
duetime=logintime+duration; |
duetime=logintime+duration; |
due_time_tm=localtime(&duetime); |
if (compare_datetime(duetime,current->due_date)==-1) { |
sprintf(date_str,"%04d/%02d/%02d %02d:%02d",((due_time_tm->tm_year)+1900), |
due_time_tm=localtime(&duetime); |
due_time_tm->tm_mon+1,due_time_tm->tm_mday,due_time_tm->tm_hour, |
sprintf(date_str,"%04d/%02d/%02d %02d:%02d",((due_time_tm->tm_year)+1900), |
due_time_tm->tm_min); |
due_time_tm->tm_mon+1,due_time_tm->tm_mday,due_time_tm->tm_hour, |
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due_time_tm->tm_min); |
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} else { |
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strncpy(date_str,current->due_date,DATE_BUFFER); |
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} |
return; |
return; |
} |
} |
} |
} |
Line 2124 extern int Symb_count;
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Line 2153 extern int Symb_count;
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extern int first_run; |
extern int first_run; |
extern int Stop_Parser; |
extern int Stop_Parser; |
extern void (*Status_Func)(); |
extern void (*Status_Func)(); |
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#ifdef TTH |
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extern void tth_restart(); |
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extern char* tth_err; |
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#endif /*TTH*/ |
long seed1, seed2; |
long seed1, seed2; |
T_student a_student; |
T_student a_student; |
char *class, *classname, warn_msg[WARN_MSG_LENGTH]; |
char *class, *classname, warn_msg[WARN_MSG_LENGTH]; |
Line 2152 extern void (*Status_Func)();
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Line 2185 extern void (*Status_Func)();
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} |
} |
u_getunit(fp); |
u_getunit(fp); |
fclose(fp); |
fclose(fp); |
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#ifdef TTH |
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if(tth_err) { free(tth_err); tth_err=NULL; } |
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tth_restart(); |
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#endif /*TTH*/ |
strncpy(Parse_name,a_student.s_nm,MAX_NAME_CHAR+1); |
strncpy(Parse_name,a_student.s_nm,MAX_NAME_CHAR+1); |
strncpy(Parse_student_number,student_number,MAX_STUDENT_NUMBER+1); |
strncpy(Parse_student_number,student_number,MAX_STUDENT_NUMBER+1); |
Parse_section = a_student.s_sec; |
Parse_section = a_student.s_sec; |
Line 2462 char *buf;double *num; char *num_p; char
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Line 2499 char *buf;double *num; char *num_p; char
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while( isspace(buf[idx]) ) { idx++; } |
while( isspace(buf[idx]) ) { idx++; } |
sscanf(num_str, "%lg", &result); /* put the numerical value into a double variable */ |
sscanf(num_str, "%lg", &result); /* put the numerical value into a double variable */ |
errcode = errcode | 1; |
errcode = errcode | 1; |
} else if( buf[idx] == 'x' || buf[idx] == 'X') { /* optional x or X part */ |
} else if( buf[idx] == 'x' || buf[idx] == 'X' || buf[idx] == '*') { /* optional x or X part */ |
idx++; /* skip x or X */ |
idx++; /* skip x or X */ |
while( isspace(buf[idx]) ) { idx++; } |
while( isspace(buf[idx]) ) { idx++; } |
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Line 2601 answers_string(mode, p)int mode;Problem_
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Line 2638 answers_string(mode, p)int mode;Problem_
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if(len_dd == 0 ) { /* no unit_str */ |
if(len_dd == 0 ) { /* no unit_str */ |
sprintf(ans_str," %s [%s,%s]\n\n", str_aa,str_bb,str_cc); |
sprintf(ans_str," %s [%s,%s]\n\n", str_aa,str_bb,str_cc); |
} else { |
} else { |
sprintf(ans_str," %s [%s,%s] $%s$\n\n", str_aa,str_bb,str_cc,p->unit_str); |
sprintf(ans_str," %s [%s,%s] $\\mathrm{%s}$\n\n", str_aa,str_bb,str_cc,p->unit_str); |
} |
} |
capa_mfree((char *)str_aa); |
capa_mfree((char *)str_aa); |
capa_mfree((char *)str_bb); |
capa_mfree((char *)str_bb); |
Line 2612 answers_string(mode, p)int mode;Problem_
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Line 2649 answers_string(mode, p)int mode;Problem_
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str_bb = format_toTeX(lower); |
str_bb = format_toTeX(lower); |
} else { /* answer could be string, choice */ |
} else { /* answer could be string, choice */ |
str_bb = (char *)capa_malloc(strlen(lower)+MAX_BUFFER_SIZE,1); |
str_bb = (char *)capa_malloc(strlen(lower)+MAX_BUFFER_SIZE,1); |
if (p->ans_type == ANSWER_IS_FORMULA || 1) |
if (p->verbatim == DO_VERBATIM) |
sprintf(str_bb,"\\begin{verbatim}%s\\end{verbatim}",lower); |
sprintf(str_bb,"\\begin{verbatim}%s\\end{verbatim}",lower); |
else |
else |
strcpy(str_bb,lower); |
strcpy(str_bb,lower); |
Line 2623 answers_string(mode, p)int mode;Problem_
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Line 2660 answers_string(mode, p)int mode;Problem_
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if(len_dd == 0 ) { /* no unit_str */ |
if(len_dd == 0 ) { /* no unit_str */ |
sprintf(ans_str," %s\n", str_bb); |
sprintf(ans_str," %s\n", str_bb); |
} else { |
} else { |
sprintf(ans_str," %s $%s$\n", str_bb,p->unit_str); |
sprintf(ans_str," %s $\\mathrm{%s}$\n", str_bb,p->unit_str); |
} |
} |
capa_mfree((char *)str_bb); |
capa_mfree((char *)str_bb); |
} |
} |
Line 2860 answers_string(mode, p)int mode;Problem_
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Line 2897 answers_string(mode, p)int mode;Problem_
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} |
} |
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int check_for_unit_fail(int result) |
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{ |
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int ret; |
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ret = (result == UNIT_FAIL || |
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result == UNIT_IRRECONCIBLE || |
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result == UNIT_INVALID_STUDENT3 || |
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result == UNIT_INVALID_STUDENT2 || |
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result == UNIT_INVALID_STUDENT1); |
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return ret; |
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} |
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/* ------------------------------ called from capalogin */ |
/* ------------------------------ called from capalogin */ |
/* impose stronger checking on the user input string *answer */ |
/* impose stronger checking on the user input string *answer */ |
Line 2867 answers_string(mode, p)int mode;Problem_
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Line 2914 answers_string(mode, p)int mode;Problem_
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/* <== This routine checks user input string *ans against correct answer *s ==> */ |
/* <== This routine checks user input string *ans against correct answer *s ==> */ |
int |
int |
capa_check_ans(ai,ans) AnswerInfo_t *ai; char *ans; |
capa_check_ans(ai,ans, error) AnswerInfo_t *ai; char *ans; char **error; |
{ |
{ |
int t; /* ans_type */ |
int t; /* ans_type */ |
char *s; /* ans_str */ |
char *s; /* ans_str */ |
Line 2884 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 2931 capa_check_ans(ai,ans) AnswerInfo_t *ai
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int sig, corr_len; |
int sig, corr_len; |
int choice[ANSWER_STRING_LENG]; |
int choice[ANSWER_STRING_LENG]; |
char num_str[ANSWER_STRING_LENG], unit_str[ANSWER_STRING_LENG]; |
char num_str[ANSWER_STRING_LENG], unit_str[ANSWER_STRING_LENG]; |
char fmted[ANSWER_STRING_LENG], correct[ANSWER_STRING_LENG], answer[ANSWER_STRING_LENG]; |
char fmted[ANSWER_STRING_LENG], correctans[ANSWER_STRING_LENG], answer[ANSWER_STRING_LENG]; |
double n_part; |
double n_part; |
double given, target, ratio, fmted_target, target_u, target_l, scale=1.0; |
double given, target, ratio, fmted_target, target_u, target_l, scale=1.0; |
double delta; |
double delta; |
Line 2910 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 2957 capa_check_ans(ai,ans) AnswerInfo_t *ai
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outcome = split_num_unit(ans,&n_part,num_str,unit_str); |
outcome = split_num_unit(ans,&n_part,num_str,unit_str); |
if( outcome > 1 ) { /* with both num and unit parts or only unit part */ |
if( outcome > 1 ) { /* with both num and unit parts or only unit part */ |
if( u_p != NULL ) { |
if( u_p != NULL ) { |
result = check_correct_unit(unit_str,u_p,&scale); |
result = check_correct_unit(unit_str,u_p,&scale); |
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if (check_for_unit_fail(result)) { |
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*error=strsave(unit_str); |
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} |
} else { /* what to do when no unit is specified but student entered a unit? */ |
} else { /* what to do when no unit is specified but student entered a unit? */ |
result = UNIT_NOTNEEDED; |
result = UNIT_NOTNEEDED; |
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*error=strsave(unit_str); |
} |
} |
} else { |
} else { |
if( u_p != NULL ) { |
if( u_p != NULL ) { |
result = NO_UNIT; |
result = NO_UNIT; |
} |
} |
} |
} |
if( (result != NO_UNIT) && (result != UNIT_FAIL) && ( result != UNIT_NOTNEEDED) ) { |
if( (result != NO_UNIT) && (!check_for_unit_fail(result)) && ( result != UNIT_NOTNEEDED) ) { |
if( t == ANSWER_IS_FLOAT ) { |
if( t == ANSWER_IS_FLOAT ) { |
target = (double)atof(s); /* real number */ |
target = (double)atof(s); /* real number */ |
} else { |
} else { |
Line 2927 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 2978 capa_check_ans(ai,ans) AnswerInfo_t *ai
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} |
} |
given = n_part * scale; /* convert the given answer into proper scale for units */ |
given = n_part * scale; /* convert the given answer into proper scale for units */ |
sig = calc_sig( num_str ); |
sig = calc_sig( num_str ); |
if( (sig < sl) || (sig > su) ) { |
if( ((sig < sl ) || (sig > su )) && (sig!=0)) { |
result = SIG_FAIL; |
result = SIG_FAIL; |
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*error=capa_malloc(1,ANSWER_STRING_LENG); |
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sprintf(*error,"%d",sig); |
} else { |
} else { |
switch( tt ) { /* tolerence type */ |
switch( tt ) { /* tolerence type */ |
case TOL_ABSOLUTE: |
case TOL_ABSOLUTE: |
Line 2970 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 3023 capa_check_ans(ai,ans) AnswerInfo_t *ai
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} /* end sig check */ |
} /* end sig check */ |
} /* end if unit check */ |
} /* end if unit check */ |
} else { /* user entered alphabets, but no number */ |
} else { /* user entered alphabets, but no number */ |
result = INCORRECT; |
result = WANTED_NUMERIC; |
} |
} |
} |
} |
break; |
break; |
Line 2978 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 3031 capa_check_ans(ai,ans) AnswerInfo_t *ai
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{ |
{ |
corr_len = strlen(s); input_len = strlen(ans); |
corr_len = strlen(s); input_len = strlen(ans); |
if( corr_len == input_len ) { |
if( corr_len == input_len ) { |
for(idx=0;idx<ANSWER_STRING_LENG;idx++) choice[idx] = 0; |
for(idx=0;idx<ANSWER_STRING_LENG;idx++) { |
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choice[idx] = 0;correctans[idx] = 0; |
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} |
result = EXACT_ANS; |
result = EXACT_ANS; |
for(ii=0;ii<corr_len; ii++) { |
for(ii=0;ii<corr_len; ii++) { |
idx = toupper(correct[ii]) - 'A'; choice[idx] = 1; |
idx = toupper(s[ii]) - 'A'; choice[idx] = 1; |
} |
} |
for(ii=0;ii<input_len;ii++) { |
for(ii=0;ii<input_len;ii++) { |
idx = toupper(answer[ii]) - 'A'; |
idx = toupper(ans[ii]) - 'A'; correctans[idx] = 1; |
if(choice[idx] != 1 ) result = INCORRECT; |
} |
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for(ii=0;ii<ANSWER_STRING_LENG;ii++) { |
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if(choice[ii] != correctans[ii] ) result = INCORRECT; |
} |
} |
} else { result = INCORRECT; } |
} else { result = INCORRECT; } |
break; |
break; |
Line 3001 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 3058 capa_check_ans(ai,ans) AnswerInfo_t *ai
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break; |
break; |
case ANSWER_IS_EXTERNAL: /* Not yet implemented */ |
case ANSWER_IS_EXTERNAL: /* Not yet implemented */ |
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break; |
break; |
} |
} |
return (result); |
return (result); |
Line 3023 capa_check_ans(ai,ans) AnswerInfo_t *ai
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Line 3082 capa_check_ans(ai,ans) AnswerInfo_t *ai
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int |
int |
capa_check_answer(p, answer) Problem_t *p; char *answer; |
capa_check_answer(p, answer, error) Problem_t *p; char *answer; char **error; |
{ |
{ |
int type; |
int type; |
char *correct; |
char *correct; |
Line 3033 capa_check_answer(p, answer) Problem_t *
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Line 3092 capa_check_answer(p, answer) Problem_t *
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int sig_l; |
int sig_l; |
int sig_u; |
int sig_u; |
char *fmt; |
char *fmt; |
int choice[ANSWER_STRING_LENG], ii, idx, corr_len, input_len; |
int choice[ANSWER_STRING_LENG], correctans[ANSWER_STRING_LENG]; |
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int ii, idx, corr_len, input_len; |
int result = INCORRECT, sig, outcome, all_alphabet; |
int result = INCORRECT, sig, outcome, all_alphabet; |
char fmted[FORMAT_STRING_LENG]; |
char fmted[FORMAT_STRING_LENG]; |
double given, target, ratio, fmted_target, target_u, target_l, scale=1.0; |
double given, target, ratio, fmted_target, target_u, target_l, scale=1.0; |
Line 3048 capa_check_answer(p, answer) Problem_t *
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Line 3108 capa_check_answer(p, answer) Problem_t *
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fmt = p->ans_fmt; |
fmt = p->ans_fmt; |
calc_type = p->calc; |
calc_type = p->calc; |
unit_str[0]=0; |
unit_str[0]=0; |
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switch(type) { |
switch(type) { |
case ANSWER_IS_INTEGER: |
case ANSWER_IS_INTEGER: |
case ANSWER_IS_FLOAT: |
case ANSWER_IS_FLOAT: |
Line 3064 capa_check_answer(p, answer) Problem_t *
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Line 3124 capa_check_answer(p, answer) Problem_t *
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outcome = split_num_unit(answer,&n_part,input,unit_str); |
outcome = split_num_unit(answer,&n_part,input,unit_str); |
if( outcome > 1 ) { /* with both num and unit parts or only unit part */ |
if( outcome > 1 ) { /* with both num and unit parts or only unit part */ |
if( p->ans_unit != NULL ) { |
if( p->ans_unit != NULL ) { |
result = check_correct_unit(unit_str,p->ans_unit,&scale); |
result = check_correct_unit(unit_str,p->ans_unit,&scale); |
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if (check_for_unit_fail(result)) { |
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*error=strsave(unit_str); |
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} |
} else { /* what to do when no unit is specified but student entered a unit? */ |
} else { /* what to do when no unit is specified but student entered a unit? */ |
result = UNIT_NOTNEEDED; |
result = UNIT_NOTNEEDED; |
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*error=strsave(unit_str); |
} |
} |
} else { |
} else { |
if( p->ans_unit != NULL ) { |
if( p->ans_unit != NULL ) { |
result = NO_UNIT; |
result = NO_UNIT; |
} |
} |
} |
} |
if( (result != NO_UNIT) && (result != UNIT_FAIL) && ( result != UNIT_NOTNEEDED) ) { |
if( (result != NO_UNIT) && (!check_for_unit_fail(result)) && ( result != UNIT_NOTNEEDED) ) { |
if( type == ANSWER_IS_FLOAT ) { |
if( type == ANSWER_IS_FLOAT ) { |
target = (double)atof(correct); /* real number */ |
target = (double)atof(correct); /* real number */ |
} else { |
} else { |
Line 3084 capa_check_answer(p, answer) Problem_t *
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Line 3147 capa_check_answer(p, answer) Problem_t *
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sig = calc_sig( input ); |
sig = calc_sig( input ); |
if( ((sig < sig_l) || (sig > sig_u)) && (sig!=0)) { |
if( ((sig < sig_l) || (sig > sig_u)) && (sig!=0)) { |
result = SIG_FAIL; |
result = SIG_FAIL; |
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*error=capa_malloc(1,ANSWER_STRING_LENG); |
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sprintf(*error,"%d",sig); |
} else { |
} else { |
switch( tol_type ) { |
switch( tol_type ) { |
case TOL_ABSOLUTE: |
case TOL_ABSOLUTE: |
Line 3125 capa_check_answer(p, answer) Problem_t *
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Line 3190 capa_check_answer(p, answer) Problem_t *
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} /* end sig check */ |
} /* end sig check */ |
} /* end if unit check */ |
} /* end if unit check */ |
} else { /* user entered alphabet, but no number */ |
} else { /* user entered alphabet, but no number */ |
result = INCORRECT; |
result = WANTED_NUMERIC; |
} |
} |
} |
} |
break; |
break; |
Line 3133 capa_check_answer(p, answer) Problem_t *
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Line 3198 capa_check_answer(p, answer) Problem_t *
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{ |
{ |
corr_len = strlen(correct); input_len = strlen(answer); |
corr_len = strlen(correct); input_len = strlen(answer); |
if( corr_len == input_len ) { |
if( corr_len == input_len ) { |
for(ii=0;ii<ANSWER_STRING_LENG;ii++) choice[ii] = 0; result = EXACT_ANS; |
for(idx=0;idx<ANSWER_STRING_LENG;idx++) { |
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choice[idx] = 0;correctans[idx] = 0; |
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} |
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result = EXACT_ANS; |
for(ii=0;ii<corr_len; ii++) { |
for(ii=0;ii<corr_len; ii++) { |
idx = toupper(correct[ii]) - 'A'; choice[idx] = 1; |
idx = toupper(correct[ii]) - 'A'; choice[idx] = 1; |
} |
} |
for(ii=0;ii<input_len;ii++) { |
for(ii=0;ii<input_len;ii++) { |
idx = toupper(answer[ii]) - 'A'; |
idx = toupper(answer[ii]) - 'A'; correctans[idx] = 1; |
if(choice[idx] != 1 ) result = INCORRECT; |
} |
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for(ii=0;ii<ANSWER_STRING_LENG;ii++) { |
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if(choice[ii] != correctans[ii] ) result = INCORRECT; |
} |
} |
} else { result = INCORRECT; } |
} else { result = INCORRECT; } |
break; |
break; |
Line 3158 capa_check_answer(p, answer) Problem_t *
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Line 3228 capa_check_answer(p, answer) Problem_t *
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/* and the result will be given back as 0 or 1 to indicate the */ |
/* and the result will be given back as 0 or 1 to indicate the */ |
/* given answer is correct or not */ |
/* given answer is correct or not */ |
/* arguments are given to the program as */ |
/* arguments are given to the program as */ |
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/* before running the program, check its existance first */ |
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/* should we specify a time out period in capa.config file? */ |
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/* set up a timer for this purpose */ |
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/* FILE *popen (const char *command,const char *type ); */ |
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break; |
break; |
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Line 3165 capa_check_answer(p, answer) Problem_t *
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Line 3239 capa_check_answer(p, answer) Problem_t *
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return (result); |
return (result); |
} |
} |
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/* ----------------------------------------------------------------------------------- */ |
/* -------------------------------------------------------------------------- */ |
/* assumming the formula is *fml_str and the student input is *input_str */ |
/* assumming the formula is *fml_str and the student input is *input_str */ |
/* according to the type of tolerance, we form the final formula as */ |
/* according to the type of tolerance, we form the final formula as */ |
/* absolute tolerance: (*fml_str) - (*input_str) */ |
/* absolute tolerance: (*fml_str) - (*input_str) */ |
Line 3200 char *fml_str;char *input_str;char *var_
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Line 3274 char *fml_str;char *input_str;char *var_
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} |
} |
} else { |
} else { |
diff = abs(1.0 - formula_val) * 100.0 ; |
diff = abs(1.0 - formula_val) * 100.0 ; |
if( diff < tol ) { |
if( diff > tol ) { |
outcome = INCORRECT; |
outcome = INCORRECT; |
} |
} |
} |
} |
Line 3310 int tol_type;double tol;char *lower;char
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Line 3384 int tol_type;double tol;char *lower;char
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/* New check answers routine checks the /AND and /OR group of answers */ |
/* New check answers routine checks the /AND and /OR group of answers */ |
/* use array of char pointers char **a */ |
/* use array of char pointers char **a */ |
int |
int |
capa_check_answers(p,answers,cnt) Problem_t *p; char **answers; int cnt; |
capa_check_answers(p,answers,cnt,error) |
|
Problem_t *p; char **answers; int cnt; char **error; |
{ |
{ |
AnswerInfo_t *ai; |
AnswerInfo_t *ai; |
int ii, done, result; |
int ii, done, result; |
int *outcomes; |
int *outcomes; |
|
char **errormsg; |
|
|
|
errormsg=(char**)capa_malloc(cnt,sizeof(char*)); |
if(p->ans_op == ANS_AND) { /* ans /and ans */ |
if(p->ans_op == ANS_AND) { /* ans /and ans */ |
if( (cnt != p->ans_cnt) ) { return (ANS_CNT_NOT_MATCH); } |
if( (cnt != p->ans_cnt) ) { return (ANS_CNT_NOT_MATCH); } |
if( cnt == 1 ) { return (capa_check_answer(p, answers[0])); } /* there is only one answer */ |
if( cnt == 1 ) { return (capa_check_answer(p, answers[0], error)); } /* there is only one answer */ |
outcomes = (int *)capa_malloc(sizeof(int),cnt); |
outcomes = (int *)capa_malloc(sizeof(int),cnt); |
for(ii=0;ii<cnt;ii++) outcomes[ii]=0; /* initialize the outcomes array */ |
for(ii=0;ii<cnt;ii++) outcomes[ii]=0; /* initialize the outcomes array */ |
outcomes[0] = capa_check_answer(p, answers[0]); |
outcomes[0] = capa_check_answer(p, answers[0], &errormsg[0]); |
|
#ifdef COMMON_DBUG |
|
printf("CAPA_CHECK_ANSWER(%s,%s):: outcome[0]=%d\n", |
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p->answer,answers[0],outcomes[0]); |
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#endif |
for(ii=1, ai = p->ans_list; ai; ii++,ai = ai->ans_next ) { |
for(ii=1, ai = p->ans_list; ai; ii++,ai = ai->ans_next ) { |
outcomes[ii] = capa_check_ans(ai,answers[ii]); |
outcomes[ii] = capa_check_ans(ai,answers[ii],&(errormsg[ii])); |
|
#ifdef COMMON_DBUG |
|
printf("CAPA_CHECK_ANS(%s,%s): outcome[%d]=%d\n", ai->ans_str,answers[ii],ii,outcomes[ii]); |
|
#endif |
} |
} |
done = ii = 0; |
done = ii = 0; |
result = 0; |
result = 0; |
while( !done ) { /* check if any of the outcome has failed on units */ |
while( !done ) { /* check if any of the outcome has failed on units */ |
if( (outcomes[ii] == UNIT_FAIL) || |
if( (check_for_unit_fail(outcomes[ii])) || |
(outcomes[ii] == NO_UNIT) || |
(outcomes[ii] == NO_UNIT) || |
(outcomes[ii] == UNIT_NOTNEEDED) ) { |
(outcomes[ii] == UNIT_NOTNEEDED) ) { |
result = outcomes[ii]; |
result = outcomes[ii]; |
|
if (result != NO_UNIT) { *error=strsave(errormsg[ii]); } |
done = 1; |
done = 1; |
} |
} |
ii++; |
ii++; |
if(ii==cnt) done = 1; |
if(ii==cnt) done = 1; |
} |
} |
if( result == 0 ) { /* check if any of the outcome has failed on sig figs */ |
if( result == 0 ) { |
|
/* check if any of the outcome has failed to be a numeric |
|
or was a malformed equation */ |
|
done = ii = 0; |
|
while( !done ) { |
|
if( outcomes[ii] == WANTED_NUMERIC || outcomes[ii] == BAD_FORMULA ) { |
|
result = outcomes[ii]; |
|
done = 1; |
|
} |
|
ii++; |
|
if(ii==cnt) done = 1; |
|
} |
|
} |
|
if( result == 0 ) {/*check if any of the outcome has failed on sig figs*/ |
done = ii = 0; |
done = ii = 0; |
while( !done ) { |
while( !done ) { |
if( outcomes[ii] == SIG_FAIL ) { |
if( outcomes[ii] == SIG_FAIL ) { |
result = outcomes[ii]; |
result = outcomes[ii]; |
|
*error = strsave(errormsg[ii]); |
done = 1; |
done = 1; |
} |
} |
ii++; |
ii++; |
Line 3359 capa_check_answers(p,answers,cnt) Proble
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Line 3458 capa_check_answers(p,answers,cnt) Proble
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if(ii==cnt) done = 1; |
if(ii==cnt) done = 1; |
} |
} |
} |
} |
|
for (ii=0;ii<cnt;ii++) { |
|
if( (check_for_unit_fail(outcomes[ii])) || |
|
(outcomes[ii] == SIG_FAIL) || |
|
(outcomes[ii] == UNIT_NOTNEEDED) ) { |
|
capa_mfree(errormsg[ii]); |
|
} |
|
} |
|
capa_mfree((char *)errormsg); |
capa_mfree((char *)outcomes); |
capa_mfree((char *)outcomes); |
if( result == 0 ) { |
if( result == 0 ) { |
result = APPROX_ANS; /* all answers are correct */ |
result = APPROX_ANS; /* all answers are correct */ |
} |
} |
|
|
} else { /* should be ANS_OR , user answer count should always be 1 */ |
} else { /* should be ANS_OR , user answer count should always be 1 */ |
if( cnt != 1 ) { return (ANS_CNT_NOT_MATCH); } |
if( cnt != 1 ) { return (ANS_CNT_NOT_MATCH); } |
if( p->ans_cnt == 1 ) { return (capa_check_answer(p, answers[0])); } |
if( p->ans_cnt == 1 ) { return (capa_check_answer(p, answers[0], error)); } |
result = capa_check_answer(p, answers[0]); |
result = capa_check_answer(p, answers[0], error); |
ii = 1; ai = p->ans_list; |
ii = 1; ai = p->ans_list; |
while( (ii<p->ans_cnt) && ( (result != EXACT_ANS) && (result != APPROX_ANS) ) ) { |
while( (ii<p->ans_cnt) && ( (result != EXACT_ANS) && (result != APPROX_ANS) ) ) { |
result = capa_check_ans(ai,answers[0]); |
if((ii!=1)&&((check_for_unit_fail(result))||(result==SIG_FAIL)||(result==UNIT_NOTNEEDED))) { |
ai = ai->ans_next; ii++; |
capa_mfree((char*)error); |
|
} |
|
result = capa_check_ans(ai,answers[0],error); |
|
ai = ai->ans_next; ii++; |
} |
} |
} |
} |
return (result); |
return (result); |
Line 3467 char *key_word;char *value;
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Line 3578 char *key_word;char *value;
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} |
} |
} |
} |
if (c=='\n') found=1; |
if (c=='\n') found=1; |
if (((char)c)==((char)EOF)) break; |
if (((char)c)==((char)EOF)) {failed=1;break;} |
} |
} |
} |
} |
} while (!done && !failed); |
} while (!done && !failed); |