1 #include <u.h> 2 #include <libc.h> 3 #include <bio.h> 4 #include <ctype.h> 5 #include <ndb.h> 6 #include "ndbhf.h" 7 8 /* 9 * Parse a data base entry. Entries may span multiple 10 * lines. An entry starts on a left margin. All subsequent 11 * lines must be indented by white space. An entry consists 12 * of tuples of the forms: 13 * attribute-name 14 * attribute-name=value 15 * attribute-name="value with white space" 16 * 17 * The parsing returns a 2-dimensional structure. The first 18 * dimension joins all tuples. All tuples on the same line 19 * form a ring along the second dimension. 20 */ 21 22 /* 23 * parse the next entry in the file 24 */ 25 Ndbtuple* ndbparse(Ndb * db)26ndbparse(Ndb *db) 27 { 28 char *line; 29 Ndbtuple *t; 30 Ndbtuple *first, *last; 31 int len; 32 33 first = last = 0; 34 for(;;){ 35 if((line = Brdline(&db->b, '\n')) == 0) 36 break; 37 len = Blinelen(&db->b); 38 if(line[len-1] != '\n') 39 break; 40 if(first && !ISWHITE(*line) && *line != '#'){ 41 Bseek(&db->b, -len, 1); 42 break; 43 } 44 t = _ndbparseline(line); 45 if(t == 0) 46 continue; 47 setmalloctag(t, getcallerpc(&db)); 48 if(first) 49 last->entry = t; 50 else 51 first = t; 52 last = t; 53 while(last->entry) 54 last = last->entry; 55 } 56 ndbsetmalloctag(first, getcallerpc(&db)); 57 return first; 58 } 59