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