static void
cmd_export(void)
{
prefix *pfx;
fExportUsed = fTrue;
pfx = read_prefix(PFX_STATION);
do {
int depth = 0;
{
prefix *p = pfx;
while (p != NULL && p != pcs->Prefix) {
depth++;
p = p->up;
}
/* Something like: *export \foo, but we've excluded use of root */
SVX_ASSERT(p);
}
/* *export \ or similar bogus stuff */
SVX_ASSERT(depth);
#if 0
printf("C min %d max %d depth %d pfx %s\n",
pfx->min_export, pfx->max_export, depth, sprint_prefix(pfx));
#endif
if (pfx->min_export == 0) {
/* not encountered *export for this name before */
if (pfx->max_export > depth) report_missing_export(pfx, depth);
pfx->min_export = pfx->max_export = depth;
} else if (pfx->min_export != USHRT_MAX) {
/* FIXME: what to do if a station is marked for inferred exports
* but is then explicitly exported? Currently we just ignore the
* explicit export... */
if (pfx->min_export - 1 > depth) {
report_missing_export(pfx, depth);
} else if (pfx->min_export - 1 < depth) {
compile_error(/*Station “%s” already exported*/66,
sprint_prefix(pfx));
}
pfx->min_export = depth;
}
pfx = read_prefix(PFX_STATION|PFX_OPT);
} while (pfx);
}
static void
cmd_equate(void)
{
prefix *name1, *name2;
bool fOnlyOneStn = fTrue; /* to trap eg *equate entrance.6 */
name1 = read_prefix(PFX_STATION|PFX_ALLOW_ROOT|PFX_SUSPECT_TYPO);
while (fTrue) {
name2 = name1;
name1 = read_prefix(PFX_STATION|PFX_ALLOW_ROOT|PFX_SUSPECT_TYPO|PFX_OPT);
if (name1 == NULL) {
if (fOnlyOneStn) {
compile_error_skip(-/*Only one station in EQUATE command*/33);
}
return;
}
process_equate(name1, name2);
fOnlyOneStn = fFalse;
}
}
static int prefix_opts(JFT_Stem *prefix, JFT_Symbol **stop, int argc, char **argv) {
extern char *optarg;
extern int optind, optopt;
int opt, ptr, err = 0, omit = 1;
static struct option options[] = {
{"null", no_argument, NULL, 'n'},
{"stop", no_argument, NULL, 's'},
{"primary", no_argument, NULL, 'p'},
{"indices", no_argument, NULL, 'i'},
{}
};
// default
prefix->pre = JFT_SYMBOL_PRIMARY;
prefix->size = 1;
while ((opt = getopt_long(argc, argv, "hnspi", options, &ptr)) != -1) {
switch(opt) {
case 'h':
return usage(0);
case 'n':
omit = 0;
break;
case 's':
*stop = &null;
break;
case 'p':
prefix->pre = JFT_SYMBOL_PRIMARY;
prefix->size = 1;
break;
case 'i':
prefix->pre = JFT_SYMBOL_INDICES;
prefix->size = 1;
break;
case ':':
pwarn("%s: option requires an argument -- %c", argv[0], optopt);
err++;
break;
case '?':
pwarn("%s: illegal option -- %c", argv[0], optopt);
err++;
break;
}
}
read_prefix(prefix, omit, argc - optind, argv + optind);
return err;
}
static void
cmd_prefix(void)
{
static int prefix_depr_count = 0;
prefix *tag;
/* Issue warning first, so "*prefix \" warns first that *prefix is
* deprecated and then that ROOT is...
*/
if (prefix_depr_count < 5) {
compile_warning(-/**prefix is deprecated - use *begin and *end instead*/6);
if (++prefix_depr_count == 5)
compile_warning(/*Further uses of this deprecated feature will not be reported*/95);
}
tag = read_prefix(PFX_SURVEY|PFX_ALLOW_ROOT);
pcs->Prefix = tag;
check_reentry(tag);
}
static void
cmd_begin(void)
{
prefix *tag;
settings *pcsNew;
pcsNew = osnew(settings);
*pcsNew = *pcs; /* copy contents */
pcsNew->begin_lineno = file.line;
pcsNew->next = pcs;
pcs = pcsNew;
tag = read_prefix(PFX_SURVEY|PFX_OPT|PFX_ALLOW_ROOT|PFX_WARN_SEPARATOR);
pcs->tag = tag;
if (tag) {
pcs->Prefix = tag;
check_reentry(tag);
f_export_ok = fTrue;
}
}
static void
cmd_end(void)
{
settings *pcsParent;
prefix *tag, *tagBegin;
pcsParent = pcs->next;
if (pcs->begin_lineno == 0) {
if (pcsParent == NULL) {
/* more ENDs than BEGINs */
compile_error_skip(/*No matching BEGIN*/192);
} else {
compile_error_skip(/*END with no matching BEGIN in this file*/22);
}
return;
}
tagBegin = pcs->tag;
SVX_ASSERT(pcsParent);
free_settings(pcs);
pcs = pcsParent;
/* note need to read using root *before* BEGIN */
tag = read_prefix(PFX_SURVEY|PFX_OPT|PFX_ALLOW_ROOT);
if (tag != tagBegin) {
if (tag) {
if (!tagBegin) {
/* "*begin" / "*end foo" */
compile_error_skip(-/*Matching BEGIN tag has no prefix*/36);
} else {
/* tag mismatch */
compile_error_skip(-/*Prefix tag doesn’t match BEGIN*/193);
}
} else {
/* close tag omitted; open tag given */
compile_warning(-/*Closing prefix omitted from END*/194);
}
}
}
void Glulxe::unparse_glk_args(dispatch_splot_t *splot, const char **proto, int depth,
int *argnumptr, uint subaddress, int subpassout) {
const char *cx;
int ix, argx;
int gargnum, numwanted;
void *opref;
gluniversal_t *garglist;
uint *varglist;
garglist = splot->garglist;
varglist = splot->varglist;
gargnum = *argnumptr;
cx = *proto;
numwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numwanted = 10 * numwanted + (*cx - '0');
cx++;
}
for (argx = 0, ix = 0; argx < numwanted; argx++, ix++) {
char typeclass;
int skipval;
int isref, passin, passout, nullok, isarray, isretained, isreturn;
cx = read_prefix(cx, &isref, &isarray, &passin, &passout, &nullok,
&isretained, &isreturn);
typeclass = *cx;
cx++;
skipval = false;
if (isref) {
if (!isreturn && varglist[ix] == 0) {
if (!nullok)
error("Zero passed invalidly to Glk function.");
garglist[gargnum]._ptrflag = false;
gargnum++;
skipval = true;
} else {
garglist[gargnum]._ptrflag = true;
gargnum++;
}
}
if (!skipval) {
uint thisval = 0;
if (typeclass == '[') {
unparse_glk_args(splot, &cx, depth + 1, &gargnum, varglist[ix], passout);
} else if (isarray) {
/* definitely isref */
switch (typeclass) {
case 'C':
ReleaseCArray((char *)garglist[gargnum]._array, varglist[ix], varglist[ix + 1], passout);
gargnum++;
ix++;
gargnum++;
cx++;
break;
case 'I':
ReleaseIArray((uint *)garglist[gargnum]._array, varglist[ix], varglist[ix + 1], passout);
gargnum++;
ix++;
gargnum++;
cx++;
break;
case 'Q':
ReleasePtrArray((void **)garglist[gargnum]._array, varglist[ix], varglist[ix + 1], (*cx - 'a'), passout);
gargnum++;
ix++;
gargnum++;
cx++;
break;
default:
error("Illegal format string.");
break;
}
} else {
/* a plain value or a reference to one. */
if (isreturn || (depth > 0 && subpassout) || (isref && passout)) {
skipval = false;
} else {
skipval = true;
}
switch (typeclass) {
case 'I':
if (!skipval) {
if (*cx == 'u')
thisval = (uint)garglist[gargnum]._uint;
else if (*cx == 's')
thisval = (uint)garglist[gargnum]._sint;
else
error("Illegal format string.");
}
gargnum++;
cx++;
break;
case 'Q':
if (!skipval) {
opref = garglist[gargnum]._opaqueref;
if (opref) {
gidispatch_rock_t objrock = gidispatch_get_objrock(opref, *cx - 'a');
assert(objrock.ptr);
thisval = ((classref_t *)objrock.ptr)->id;
} else {
thisval = 0;
}
}
gargnum++;
cx++;
break;
case 'C':
if (!skipval) {
if (*cx == 'u')
thisval = (uint)garglist[gargnum]._uch;
else if (*cx == 's')
thisval = (uint)garglist[gargnum]._sch;
else if (*cx == 'n')
thisval = (uint)garglist[gargnum]._ch;
else
error("Illegal format string.");
}
gargnum++;
cx++;
break;
case 'S':
if (garglist[gargnum]._charstr)
ReleaseVMString(garglist[gargnum]._charstr);
gargnum++;
break;
#ifdef GLK_MODULE_UNICODE
case 'U':
if (garglist[gargnum]._unicharstr)
ReleaseVMUstring(garglist[gargnum]._unicharstr);
gargnum++;
break;
#endif /* GLK_MODULE_UNICODE */
default:
error("Illegal format string.");
break;
}
if (isreturn) {
*(splot->retval) = thisval;
} else if (depth > 0) {
/* Definitely not isref or isarray. */
if (subpassout)
WriteStructField(subaddress, ix, thisval);
} else if (isref) {
if (passout)
WriteMemory(varglist[ix], thisval);
}
}
} else {
/* We got a null reference, so we have to skip the format element. */
if (typeclass == '[') {
int numsubwanted, refdepth;
numsubwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numsubwanted = 10 * numsubwanted + (*cx - '0');
cx++;
}
refdepth = 1;
while (refdepth > 0) {
if (*cx == '[')
refdepth++;
else if (*cx == ']')
refdepth--;
cx++;
}
} else if (typeclass == 'S' || typeclass == 'U') {
/* leave it */
} else {
cx++;
if (isarray)
ix++;
}
}
}
if (depth > 0) {
if (*cx != ']')
error("Illegal format string.");
cx++;
} else {
if (*cx != ':' && *cx != '\0')
error("Illegal format string.");
}
*proto = cx;
*argnumptr = gargnum;
}
void Glulxe::parse_glk_args(dispatch_splot_t *splot, const char **proto, int depth, int *argnumptr,
uint subaddress, int subpassin) {
const char *cx;
int ix, argx;
int gargnum, numwanted;
void *opref;
gluniversal_t *garglist;
uint *varglist;
garglist = splot->garglist;
varglist = splot->varglist;
gargnum = *argnumptr;
cx = *proto;
numwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numwanted = 10 * numwanted + (*cx - '0');
cx++;
}
for (argx = 0, ix = 0; argx < numwanted; argx++, ix++) {
char typeclass;
int skipval;
int isref, passin, passout, nullok, isarray, isretained, isreturn;
cx = read_prefix(cx, &isref, &isarray, &passin, &passout, &nullok,
&isretained, &isreturn);
typeclass = *cx;
cx++;
skipval = false;
if (isref) {
if (!isreturn && varglist[ix] == 0) {
if (!nullok)
error("Zero passed invalidly to Glk function.");
garglist[gargnum]._ptrflag = false;
gargnum++;
skipval = true;
} else {
garglist[gargnum]._ptrflag = true;
gargnum++;
}
}
if (!skipval) {
uint thisval;
if (typeclass == '[') {
parse_glk_args(splot, &cx, depth + 1, &gargnum, varglist[ix], passin);
} else if (isarray) {
/* definitely isref */
switch (typeclass) {
case 'C':
/* This test checks for a giant array length, which is
deprecated. It displays a warning and cuts it down to
something reasonable. Future releases of this interpreter
may remove this test and go on to verify_array_addresses(),
which treats this case as a fatal error. */
if (varglist[ix + 1] > endmem
|| varglist[ix] + varglist[ix + 1] > endmem) {
nonfatal_warning_i("Memory access was much too long -- perhaps a print_to_array call with only one argument", varglist[ix + 1]);
varglist[ix + 1] = endmem - varglist[ix];
}
verify_array_addresses(varglist[ix], varglist[ix + 1], 1);
garglist[gargnum]._array = CaptureCArray(varglist[ix], varglist[ix + 1], passin);
gargnum++;
ix++;
garglist[gargnum]._uint = varglist[ix];
gargnum++;
cx++;
break;
case 'I':
/* See comment above. */
if (varglist[ix + 1] > endmem / 4
|| varglist[ix + 1] > (endmem - varglist[ix]) / 4) {
nonfatal_warning_i("Memory access was much too long -- perhaps a print_to_array call with only one argument", varglist[ix + 1]);
varglist[ix + 1] = (endmem - varglist[ix]) / 4;
}
verify_array_addresses(varglist[ix], varglist[ix + 1], 4);
garglist[gargnum]._array = CaptureIArray(varglist[ix], varglist[ix + 1], passin);
gargnum++;
ix++;
garglist[gargnum]._uint = varglist[ix];
gargnum++;
cx++;
break;
case 'Q':
/* This case was added after the giant arrays were deprecated,
so we don't bother to allow for that case. We just verify
the length. */
verify_array_addresses(varglist[ix], varglist[ix + 1], 4);
garglist[gargnum]._array = CapturePtrArray(varglist[ix], varglist[ix + 1], (*cx - 'a'), passin);
gargnum++;
ix++;
garglist[gargnum]._uint = varglist[ix];
gargnum++;
cx++;
break;
default:
error("Illegal format string.");
break;
}
} else {
/* a plain value or a reference to one. */
if (isreturn) {
thisval = 0;
} else if (depth > 0) {
/* Definitely not isref or isarray. */
if (subpassin)
thisval = ReadStructField(subaddress, ix);
else
thisval = 0;
} else if (isref) {
if (passin)
thisval = ReadMemory(varglist[ix]);
else
thisval = 0;
} else {
thisval = varglist[ix];
}
switch (typeclass) {
case 'I':
if (*cx == 'u')
garglist[gargnum]._uint = (uint)(thisval);
else if (*cx == 's')
garglist[gargnum]._sint = (int)(thisval);
else
error("Illegal format string.");
gargnum++;
cx++;
break;
case 'Q':
if (thisval) {
opref = classes_get(*cx - 'a', thisval);
if (!opref) {
error("Reference to nonexistent Glk object.");
}
} else {
opref = nullptr;
}
garglist[gargnum]._opaqueref = opref;
gargnum++;
cx++;
break;
case 'C':
if (*cx == 'u')
garglist[gargnum]._uch = (unsigned char)(thisval);
else if (*cx == 's')
garglist[gargnum]._sch = (signed char)(thisval);
else if (*cx == 'n')
garglist[gargnum]._ch = (char)(thisval);
else
error("Illegal format string.");
gargnum++;
cx++;
break;
case 'S':
garglist[gargnum]._charstr = DecodeVMString(thisval);
gargnum++;
break;
#ifdef GLK_MODULE_UNICODE
case 'U':
garglist[gargnum]._unicharstr = DecodeVMUstring(thisval);
gargnum++;
break;
#endif /* GLK_MODULE_UNICODE */
default:
error("Illegal format string.");
break;
}
}
} else {
/* We got a null reference, so we have to skip the format element. */
if (typeclass == '[') {
int numsubwanted, refdepth;
numsubwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numsubwanted = 10 * numsubwanted + (*cx - '0');
cx++;
}
refdepth = 1;
while (refdepth > 0) {
if (*cx == '[')
refdepth++;
else if (*cx == ']')
refdepth--;
cx++;
}
} else if (typeclass == 'S' || typeclass == 'U') {
/* leave it */
} else {
cx++;
if (isarray)
ix++;
}
}
}
if (depth > 0) {
if (*cx != ']')
error("Illegal format string.");
cx++;
} else {
if (*cx != ':' && *cx != '\0')
error("Illegal format string.");
}
*proto = cx;
*argnumptr = gargnum;
}
void Glulxe::prepare_glk_args(const char *proto, dispatch_splot_t *splot) {
static gluniversal_t *garglist = nullptr;
static int garglist_size = 0;
int ix;
int numwanted, numvargswanted, maxargs;
const char *cx;
cx = proto;
numwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numwanted = 10 * numwanted + (*cx - '0');
cx++;
}
splot->numwanted = numwanted;
maxargs = 0;
numvargswanted = 0;
for (ix = 0; ix < numwanted; ix++) {
int isref, passin, passout, nullok, isarray, isretained, isreturn;
cx = read_prefix(cx, &isref, &isarray, &passin, &passout, &nullok,
&isretained, &isreturn);
if (isref) {
maxargs += 2;
} else {
maxargs += 1;
}
if (!isreturn) {
if (isarray) {
numvargswanted += 2;
} else {
numvargswanted += 1;
}
}
if (*cx == 'I' || *cx == 'C') {
cx += 2;
} else if (*cx == 'Q') {
cx += 2;
} else if (*cx == 'S' || *cx == 'U') {
cx += 1;
} else if (*cx == '[') {
int refdepth, nwx;
cx++;
nwx = 0;
while (*cx >= '0' && *cx <= '9') {
nwx = 10 * nwx + (*cx - '0');
cx++;
}
maxargs += nwx; /* This is *only* correct because all structs contain
plain values. */
refdepth = 1;
while (refdepth > 0) {
if (*cx == '[')
refdepth++;
else if (*cx == ']')
refdepth--;
cx++;
}
} else {
error("Illegal format string.");
}
}
if (*cx != ':' && *cx != '\0')
error("Illegal format string.");
splot->maxargs = maxargs;
if (splot->numvargs != numvargswanted)
error("Wrong number of arguments to Glk function.");
if (garglist && garglist_size < maxargs) {
glulx_free(garglist);
garglist = nullptr;
garglist_size = 0;
}
if (!garglist) {
garglist_size = maxargs + 16;
garglist = (gluniversal_t *)glulx_malloc(garglist_size
* sizeof(gluniversal_t));
}
if (!garglist)
error("Unable to allocate storage for Glk arguments.");
splot->garglist = garglist;
}
static void
cmd_fix(void)
{
prefix *fix_name;
node *stn = NULL;
static node *stnOmitAlready = NULL;
real x, y, z;
int nx, ny, nz;
filepos fp;
fix_name = read_prefix(PFX_STATION|PFX_ALLOW_ROOT);
fix_name->sflags |= BIT(SFLAGS_FIXED);
get_pos(&fp);
get_token();
if (strcmp(ucbuffer, "REFERENCE") == 0) {
/* suppress "unused fixed point" warnings for this station */
fix_name->sflags |= BIT(SFLAGS_USED);
} else {
if (*ucbuffer) set_pos(&fp);
}
x = read_numeric(fTrue, &nx);
if (x == HUGE_REAL) {
/* If the end of the line isn't blank, read a number after all to
* get a more helpful error message */
if (!isEol(ch) && !isComm(ch)) x = read_numeric(fFalse, &nx);
}
if (x == HUGE_REAL) {
if (stnOmitAlready) {
if (fix_name != stnOmitAlready->name) {
compile_error_skip(/*More than one FIX command with no coordinates*/56);
} else {
compile_warning(/*Same station fixed twice with no coordinates*/61);
}
return;
}
stn = StnFromPfx(fix_name);
compile_warning(/*FIX command with no coordinates - fixing at (0,0,0)*/54);
x = y = z = (real)0.0;
stnOmitAlready = stn;
} else {
real sdx;
y = read_numeric(fFalse, &ny);
z = read_numeric(fFalse, &nz);
sdx = read_numeric(fTrue, NULL);
if (sdx != HUGE_REAL) {
real sdy, sdz;
real cxy = 0, cyz = 0, czx = 0;
sdy = read_numeric(fTrue, NULL);
if (sdy == HUGE_REAL) {
/* only one variance given */
sdy = sdz = sdx;
} else {
sdz = read_numeric(fTrue, NULL);
if (sdz == HUGE_REAL) {
/* two variances given - horizontal & vertical */
sdz = sdy;
sdy = sdx;
} else {
cxy = read_numeric(fTrue, NULL);
if (cxy != HUGE_REAL) {
/* covariances given */
cyz = read_numeric(fFalse, NULL);
czx = read_numeric(fFalse, NULL);
} else {
cxy = 0;
}
}
}
stn = StnFromPfx(fix_name);
if (!fixed(stn)) {
node *fixpt = osnew(node);
prefix *name;
name = osnew(prefix);
name->pos = osnew(pos);
name->ident = NULL;
name->shape = 0;
fixpt->name = name;
name->stn = fixpt;
name->up = NULL;
if (TSTBIT(pcs->infer, INFER_EXPORTS)) {
name->min_export = USHRT_MAX;
} else {
name->min_export = 0;
}
name->max_export = 0;
name->sflags = 0;
add_stn_to_list(&stnlist, fixpt);
POS(fixpt, 0) = x;
POS(fixpt, 1) = y;
POS(fixpt, 2) = z;
fix(fixpt);
fixpt->leg[0] = fixpt->leg[1] = fixpt->leg[2] = NULL;
addfakeleg(fixpt, stn, 0, 0, 0,
sdx * sdx, sdy * sdy, sdz * sdz
#ifndef NO_COVARIANCES
, cxy, cyz, czx
#endif
);
}
return;
}
stn = StnFromPfx(fix_name);
}
if (!fixed(stn)) {
POS(stn, 0) = x;
POS(stn, 1) = y;
POS(stn, 2) = z;
fix(stn);
return;
}
if (x != POS(stn, 0) || y != POS(stn, 1) || z != POS(stn, 2)) {
compile_error(/*Station already fixed or equated to a fixed point*/46);
return;
}
compile_warning(/*Station already fixed at the same coordinates*/55);
}
static void
cmd_entrance(void)
{
prefix *pfx = read_prefix(PFX_STATION);
pfx->sflags |= BIT(SFLAGS_ENTRANCE);
}
ll read_range(int l, int r) { // get sum v[l..r]
return read_prefix(r) - read_prefix(l - 1);
}
/* parse_glk_args():
This long and unpleasant function translates a set of Floo objects into
a gluniversal_t array. It's recursive, too, to deal with structures.
*/
static void parse_glk_args(dispatch_splot_t *splot, char **proto, int depth,
int *argnumptr, glui32 subaddress, int subpassin)
{
char *cx;
int ix, argx;
int gargnum, numwanted;
void *opref;
gluniversal_t *garglist;
glui32 *varglist;
garglist = splot->garglist;
varglist = splot->varglist;
gargnum = *argnumptr;
cx = *proto;
numwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numwanted = 10 * numwanted + (*cx - '0');
cx++;
}
for (argx = 0, ix = 0; argx < numwanted; argx++, ix++) {
char typeclass;
int skipval;
int isref, passin, passout, nullok, isarray, isretained, isreturn;
cx = read_prefix(cx, &isref, &isarray, &passin, &passout, &nullok,
&isretained, &isreturn);
typeclass = *cx;
cx++;
skipval = FALSE;
if (isref) {
if (!isreturn && varglist[ix] == 0) {
if (!nullok)
fatalError("Zero passed invalidly to Glk function.");
garglist[gargnum].ptrflag = FALSE;
gargnum++;
skipval = TRUE;
}
else {
garglist[gargnum].ptrflag = TRUE;
gargnum++;
}
}
if (!skipval) {
glui32 thisval;
if (typeclass == '[') {
parse_glk_args(splot, &cx, depth+1, &gargnum, varglist[ix], passin);
}
else if (isarray) {
/* definitely isref */
switch (typeclass) {
case 'C':
/* This test checks for a giant array length, and cuts it down to
something reasonable. Future releases of this interpreter may
treat this case as a fatal error. */
if (varglist[ix+1] > gEndMem || varglist[ix]+varglist[ix+1] > gEndMem)
varglist[ix+1] = gEndMem - varglist[ix];
garglist[gargnum].array = (void*) CaptureCArray(varglist[ix], varglist[ix+1], passin);
gargnum++;
ix++;
garglist[gargnum].uint = varglist[ix];
gargnum++;
cx++;
break;
case 'I':
/* See comment above. */
if (varglist[ix+1] > gEndMem/4 || varglist[ix+1] > (gEndMem-varglist[ix])/4)
varglist[ix+1] = (gEndMem - varglist[ix]) / 4;
garglist[gargnum].array = CaptureIArray(varglist[ix], varglist[ix+1], passin);
gargnum++;
ix++;
garglist[gargnum].uint = varglist[ix];
gargnum++;
cx++;
break;
case 'Q':
garglist[gargnum].array = CapturePtrArray(varglist[ix], varglist[ix+1], (*cx-'a'), passin);
gargnum++;
ix++;
garglist[gargnum].uint = varglist[ix];
gargnum++;
cx++;
break;
default:
fatalError("Illegal format string.");
break;
}
}
else {
/* a plain value or a reference to one. */
if (isreturn) {
thisval = 0;
}
else if (depth > 0) {
/* Definitely not isref or isarray. */
if (subpassin)
thisval = ReadStructField(subaddress, ix);
else
thisval = 0;
}
else if (isref) {
if (passin)
thisval = ReadMemory(varglist[ix]);
else
thisval = 0;
}
else {
thisval = varglist[ix];
}
switch (typeclass) {
case 'I':
if (*cx == 'u')
garglist[gargnum].uint = (glui32)(thisval);
else if (*cx == 's')
garglist[gargnum].sint = (glsi32)(thisval);
else
fatalError("Illegal format string.");
gargnum++;
cx++;
break;
case 'Q':
if (thisval) {
opref = classes_get(*cx-'a', thisval);
if (!opref) {
fatalError("Reference to nonexistent Glk object.");
}
}
else {
opref = NULL;
}
garglist[gargnum].opaqueref = opref;
gargnum++;
cx++;
break;
case 'C':
if (*cx == 'u')
garglist[gargnum].uch = (unsigned char)(thisval);
else if (*cx == 's')
garglist[gargnum].sch = (signed char)(thisval);
else if (*cx == 'n')
garglist[gargnum].ch = (char)(thisval);
else
fatalError("Illegal format string.");
gargnum++;
cx++;
break;
case 'S':
garglist[gargnum].charstr = DecodeVMString(thisval);
gargnum++;
break;
#ifdef GLK_MODULE_UNICODE
case 'U':
garglist[gargnum].unicharstr = DecodeVMUstring(thisval);
gargnum++;
break;
#endif /* GLK_MODULE_UNICODE */
default:
fatalError("Illegal format string.");
break;
}
}
}
else {
/* We got a null reference, so we have to skip the format element. */
if (typeclass == '[') {
int numsubwanted, refdepth;
numsubwanted = 0;
while (*cx >= '0' && *cx <= '9') {
numsubwanted = 10 * numsubwanted + (*cx - '0');
cx++;
}
refdepth = 1;
while (refdepth > 0) {
if (*cx == '[')
refdepth++;
else if (*cx == ']')
refdepth--;
cx++;
}
}
else if (typeclass == 'S' || typeclass == 'U') {
/* leave it */
}
else {
cx++;
if (isarray)
ix++;
}
}
}
if (depth > 0) {
if (*cx != ']')
fatalError("Illegal format string.");
cx++;
}
else {
if (*cx != ':' && *cx != '\0')
fatalError("Illegal format string.");
}
*proto = cx;
*argnumptr = gargnum;
}