ref: 2127b8c552390cdaeb848d0992d2923733936d09
dir: /sys/src/libndb/ndbparse.c/
#include <u.h> #include <libc.h> #include <bio.h> #include <ctype.h> #include <ndb.h> #include "ndbhf.h" /* * Parse a data base entry. Entries may span multiple * lines. An entry starts on a left margin. All subsequent * lines must be indented by white space. An entry consists * of tuples of the forms: * attribute-name * attribute-name=value * attribute-name="value with white space" * * The parsing returns a 2-dimensional structure. The first * dimension joins all tuples. All tuples on the same line * form a ring along the second dimension. */ /* * parse the next entry in the file */ Ndbtuple* ndbparse(Ndb *db) { char *line; Ndbtuple *t; Ndbtuple *first, *last; int len; first = last = 0; for(;;){ if((line = Brdline(&db->b, '\n')) == 0) break; len = Blinelen(&db->b); if(line[len-1] != '\n') break; if(first && !ISWHITE(*line) && *line != '#'){ Bseek(&db->b, -len, 1); break; } t = _ndbparseline(line); if(t == 0) continue; setmalloctag(t, getcallerpc(&db)); if(first) last->entry = t; else first = t; last = t; while(last->entry) last = last->entry; } ndbsetmalloctag(first, getcallerpc(&db)); return first; }