#include "common.h"
-#define dbassert(x) \
- ((x) ? (void)0 : \
- fatal("Error in database.\n" \
- " Requirement not met: %s:%d: %s", __FILE__,__LINE__, #x))
-
-void fgetsline(FILE *f, char *lbuf, size_t lbufsz) {
- errno=0;
- char *s= fgets(lbuf,lbufsz,f);
- sysassert(!ferror(f));
- dbassert(!feof(f));
- assert(s);
- int l= strlen(lbuf);
- dbassert(l>0); dbassert(lbuf[--l]='\n');
- lbuf[l]= 0;
-}
-
void *mmalloc(size_t sz) {
void *r;
if (!sz) return 0;
sysassert( r= realloc(p,sz) );
return r;
}
+
+
+FILE *dbfile;
+static const char *path;
+
+int dbfile_open(const char *tpath) {
+ assert(!dbfile);
+ path= tpath;
+ dbfile= fopen(path,"r");
+ if (dbfile) return 1;
+ sysassert(errno==ENOENT);
+ return 0;
+}
+
+#define dbassertgl(x) ((x) ? (void)0 : dbfile_assertfail(file,line,#x))
+
+void dbfile_getsline(char *lbuf, size_t lbufsz, const char *file, int line) {
+ errno=0;
+ char *s= fgets(lbuf,lbufsz,dbfile);
+ sysassert(!ferror(dbfile));
+ dbassertgl(!feof(dbfile));
+ assert(s);
+ int l= strlen(lbuf);
+ dbassertgl(l>0); dbassertgl(lbuf[--l]=='\n');
+ lbuf[l]= 0;
+}
+
+void dbfile_close(void) {
+ if (!dbfile) return;
+ sysassert(!ferror(dbfile));
+ sysassert(!fclose(dbfile));
+ dbfile= 0;
+}
+
+int dbfile_vscanf(const char *fmt, va_list al) {
+ int r= vfscanf(dbfile,fmt,al);
+ sysassert(!ferror(dbfile));
+ return r;
+}
+
+int dbfile_scanf(const char *fmt, ...) {
+ va_list al;
+ va_start(al,fmt);
+ int r= dbfile_vscanf(fmt,al);
+ va_end(al);
+ return r;
+}
+
+void dbfile_assertfail(const char *file, int line, const char *m) {
+ if (dbfile)
+ fatal("Error in dictionary file %s at byte %ld:\n"
+ " Requirement not met at %s:%d:\n"
+ " %s",
+ path,(long)ftell(dbfile), file,line, m);
+ else
+ fatal("Semantic error in dictionaries:\n"
+ " Requirement not met at %s:%d:\n"
+ " %s",
+ file,line, m);
+}