1: /* The LearningOnline Network with CAPA
2: * Definitons of the convertor API
3: * $Id: capaCommon.h,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: /**********************************************************/
29: /* This header defines Application Interface to the */
30: /* CAPA system. It needs capaParser.h and capaToken.h */
31: /* CAPA version 4.3 */
32: /* Date Oct 23 1995 */
33: /* Isaac Tsai */
34: /* */
35: /* Get rid of old style structure definition *_t */
36: /* Make all structure definition begin with T_ */
37: /* 1997, 1998, 1999 Isaac Tsai */
38: /**********************************************************/
39:
40: #ifndef CAPA_COMMON_H
41: #define CAPA_COMMON_H
42:
43: #include <stdio.h>
44: #ifdef linux
45: #include <stdlib.h>
46: #endif
47: #ifdef NeXT
48: #include <stdlib.h>
49: #include <libc.h>
50: #else
51: #include <malloc.h>
52: #include <unistd.h>
53: #endif
54:
55: #include <math.h>
56: #include <string.h>
57: #include <time.h>
58: #include <sys/fcntl.h> /* lockf() */
59: #include <sys/file.h> /* flock() */
60: #include <sys/types.h>
61: #include <stdarg.h>
62: #include "capaParser.h"
63:
64: #ifndef MAX
65: #define MAX(a,b) ((a>b)? (a):(b))
66: #endif
67:
68: #define MAX_SECTION_SIZE 10240 /* Max # of students in the class */
69: #define MAX_SECTION_COUNT 1024
70: #define MAX_NAME_CHAR 30 /* Student's name max length */
71: #define MAX_STUDENT_NUMBER 9 /* Student Number length */
72: #define MAX_EMAIL_CHAR 40 /* Email address */
73: #define FILE_NAME_LENGTH 1024
74: #define MAX_PIN_CHAR 4
75: #define MAX_BUFFER_SIZE 2048
76: #define TMP_LINE_LENGTH 2048 /* used to read in log.db set.db dates.db */
77: #define SMALL_LINE_BUFFER 128 /* used to read classl, active.db */
78: #define SETDB_BUF_SIZE (256*1024)
79: /* user input string length now in capaParser.h*/
80: /*#define ANSWER_STRING_LENG 81*/
81: /*#define UNIT_STRING_LENG 64*/
82: #define FORMAT_STRING_LENG 32
83:
84: /* -------- used in check_date() */
85: #define CHECK_OPEN_DATE 1
86: #define CHECK_DUE_DATE 2
87: #define CHECK_ANS_DATE 3
88:
89:
90:
91: /******************************************************************************/
92: /* STRUCTURE FOR THE HEADER OF A DATABASE FILE */
93: /******************************************************************************/
94:
95: typedef struct {
96: char num_questions[FORMAT_STRING_LENG];
97: char *weight;
98: char *partial_credit;
99: } T_header;
100:
101: /******************************************************************************/
102: /* STRUCTURE FOR A NORMAL DATABASE FILE ENTRY */
103: /******************************************************************************/
104:
105: typedef struct {
106: char student_number[MAX_STUDENT_NUMBER+1]; /* Student number */
107: int e_probs;
108: char *answers; /* String of answers */
109: char *tries;
110: } T_entry;
111:
112: /******************************************************************************/
113: /* STRUCTURE FOR A STUDENT IN THE STUDENT ARRAY */
114: /******************************************************************************/
115:
116: typedef struct _student {
117: struct _student *s_next;
118: struct _student *s_prev;
119: int s_sec;
120: int s_scores;
121: char s_key[MAX_NAME_CHAR+MAX_NAME_CHAR+2]; /* sorting key */
122: char s_sn[MAX_STUDENT_NUMBER+1];
123: char s_nm[MAX_NAME_CHAR+1];
124: char s_email[MAX_EMAIL_CHAR+1];
125: int s_capaid;
126: } T_student;
127:
128: /******************************************************************************/
129: /* STRUCTURE FOR Login dates for a set */
130: /******************************************************************************/
131: /*section number DATE_DEFAULTs contains the default dates an assignment is due*/
132: #define DATE_DEFAULTS 0
133: #define OPEN_OFFSET 0
134: #define DUE_OFFSET 17
135: #define ANSWER_OFFSET 34
136: #define DATE_LENGTH 16
137: #define DATE_BUFFER 17
138: #define OPTION_INHIBIT_RESPONSE 100
139: #define OPTION_VIEW_PROBLEMS_AFTER_DUE 101
140: typedef struct _date {
141: struct _date *s_next;
142: int section_start;
143: int section_end;
144: char open_date[DATE_BUFFER];
145: char due_date[DATE_BUFFER];
146: char answer_date[DATE_BUFFER];
147: char duration[DATE_BUFFER];
148: int inhibit_response;
149: int view_problems_after_due;
150: } T_dates;
151:
152: /******************************************************************************/
153: /* STRUCTURE FOR Login history for a student */
154: /******************************************************************************/
155: typedef struct {
156: int count; /* Number of questions */
157: char *answers; /* String of answers */
158: } login_history_t;
159:
160: #define leap_year(yr) ((yr) <= 1752 ? !((yr) % 4) : !((yr) % 4) && (((yr) % 100) || !((yr) % 400)))
161:
162: #define centuries_since_1700(yr) ((yr) > 1700 ? (yr) / 100 - 17 : 0)
163:
164: #define quad_centuries_since_1700(yr) ((yr) > 1600 ? ((yr) - 1600) / 400 : 0)
165:
166: #define leap_years_since_year_1(yr) ((yr) / 4 - centuries_since_1700(yr) + quad_centuries_since_1700(yr))
167:
168: struct dyn_string {
169: int len;
170: int max;
171: char *str;
172: };
173: struct dyn_string dyn_out;
174: struct dyn_string dyn_delayed;
175: extern int dyn_maxlen;
176: extern char *import_prefix;
177:
178: #define MAX_CACHE 100
179: #define CACHE_ERROR 100
180: extern struct dyn_string cached_data[MAX_CACHE];
181: extern int current_cache;
182: extern int do_cache[MAX_CACHE];
183:
184: #define MAX_STREAMS 100
185: #define ALL_STREAMS -1
186: extern struct dyn_string streams[MAX_STREAMS];
187: extern int num_streams;
188:
189: int mode[MAX_STREAMS];
190: #define MODE_NONE 0
191: #define MODE_COMMENT 1
192: #define MODE_BLOCK 2
193: #define MODE_SCRIPT 3
194: #define MODE_OUTTEXT 4
195: #define MODE_ANSWER 5
196: #define MODE_HINT 6
197: #define MODE_IMPORT 7
198: /* end_mode always sets this to 0, if you want to check if any other
199: mode has been entered. Set this to 1 and check again if it has been
200: set back to zero.
201: */
202: extern int watch_mode[MAX_STREAMS];
203: /*=============================================================================*/
204: /* CAPA PROTOTYPES FOR FUNCTIONS IN COMMON.C */
205: /*=============================================================================*/
206: /*-----------------------------------------------------------------------------*/
207: int capa_parse(int set,Problem_t **problem,char *filename,int *num_questions,void (*func_ptr)());
208: void send(char* text,...);
209: void end_mode(void);
210: void end_mode_stream(int which);
211: void start_mode(int newmode,char* args);
212: void start_mode_stream(int which,int newmode,char* args);
213: void dyn_init(struct dyn_string *dyn);
214: void dyn_free(struct dyn_string *dyn);
215: int append_message(struct dyn_string *dyn_msg,char *format,va_list ap);
216: void add_delayed(char *format, ...);
217: void flush_delayed();
218: void start_delayed();
219: void end_delayed();
220: void send_stream(int which,char* text,...);
221: void start_streams(int num);
222: void end_streams(int which);
223: void new_cache();
224: void delete_cache();
225: void start_cache();
226: void stop_cache();
227: /*============================================================================*/
228:
229: #endif /* CAPA_COMMON_H */
230:
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