static Int read_stream_to_terms(USES_REGS1) {
int sno = Yap_CheckStream(ARG1, Input_Stream_f, "read_line_to_codes/2");
Term t, hd;
yhandle_t tails, news;
if (sno < 0)
return FALSE;
t = AbsPair(HR);
RESET_VARIABLE(HR);
Yap_InitSlot((CELL)(HR));
tails = Yap_InitSlot((CELL)(HR));
news = Yap_InitSlot((CELL)(HR));
HR++;
while (!(GLOBAL_Stream[sno].status & Eof_Stream_f)) {
RESET_VARIABLE(HR);
RESET_VARIABLE(HR + 1);
hd = (CELL)HR;
Yap_PutInSlot(news, (CELL)(HR + 1));
HR += 2;
while ((hd = Yap_read_term(sno, TermNil, 2)) == 0L)
;
// just ignore failure
CELL *pt = VarOfTerm(Yap_GetFromSlot(tails));
if (Deref(hd) == TermEOfCode) {
*pt = Deref(ARG3);
break;
} else {
CELL *newpt = (CELL *)Yap_GetFromSlot(news);
*pt = AbsPair(newpt - 1);
Yap_PutInSlot(tails, (CELL)newpt);
}
}
UNLOCK(GLOBAL_Stream[sno].streamlock);
return Yap_unify(t, ARG2);
}
/* Return a list of files for a directory */
static Int list_directory(USES_REGS1) {
Term tf = MkAtomTerm(Yap_LookupAtom("[]"));
yhandle_t sl = Yap_InitSlot(tf);
VFS_t *vfsp;
char *buf = (char *)AtomName(AtomOfTerm(ARG1));
if ((vfsp = vfs_owner(buf))) {
void *de;
const char *dp;
if ((de = vfsp->opendir(vfsp, buf)) == NULL) {
PlIOError(PERMISSION_ERROR_INPUT_STREAM, ARG1, "%s in list_directory",
strerror(errno));
}
while ((dp = vfsp->nextdir( de))) {
YAP_Term ti = MkAtomTerm(Yap_LookupAtom(dp));
Yap_PutInHandle(sl, MkPairTerm(ti, Yap_GetFromHandle(sl)));
}
vfsp->closedir( de);
} else {
#if defined(__MINGW32__) || _MSC_VER
struct _finddata_t c_file;
char bs[BUF_SIZE];
long hFile;
bs[0] = '\0';
#if HAVE_STRNCPY
strncpy(bs, buf, BUF_SIZE);
#else
strcpy(bs, buf);
#endif
#if HAVE_STRNCAT
strncat(bs, "/*", BUF_SIZE);
#else
strcat(bs, "/*");
#endif
if ((hFile = _findfirst(bs, &c_file)) == -1L) {
return (Yap_unify(ARG2, tf));
}
Yap_PutInSlot(sl, MkPairTerm(MkAtomTerm(Yap_LookupAtom(c_file.name)),
Yap_GetFromSlot(sl)));
while (_findnext(hFile, &c_file) == 0) {
Term ti = MkAtomTerm(Yap_LookupAtom(c_file.name));
Yap_PutInSlot(sl, MkPairTerm(ti, Yap_GetFromSlot(sl)));
}
_findclose(hFile);
#elif HAVE_OPENDIR
{
DIR *de;
struct dirent *dp;
if ((de = opendir(buf)) == NULL) {
PlIOError(PERMISSION_ERROR_INPUT_STREAM, ARG1, "%s in list_directory",
strerror(errno));
return false;
}
while ((dp = readdir(de))) {
Term ti = MkAtomTerm(Yap_LookupAtom(dp->d_name));
Yap_PutInSlot(sl, MkPairTerm(ti, Yap_GetFromSlot(sl)));
}
closedir(de);
}
#endif /* HAVE_OPENDIR */
}
tf = Yap_GetFromSlot(sl);
return Yap_unify(ARG2, tf);
}