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/*
* Copyright 2013 Ecole Normale Superieure
*
* Use of this software is governed by the MIT license
*
* Written by Sven Verdoolaege,
* Ecole Normale Superieure, 45 rue d'Ulm, 75230 Paris, France
*/
#include <isl/space.h>
#include <isl/set.h>
#include <isl_multi_macro.h>
/* This function is called for each element in a tuple inside
* isl_stream_read_multi_*.
* Read an EL from "s" and add it to *list.
*/
static __isl_give isl_space *FN(read_el,BASE)(__isl_keep isl_stream *s,
struct vars *v, __isl_take isl_space *space, int rational, void *user)
{
LIST(EL) **list = (LIST(EL) **) user;
EL *el;
el = FN(isl_stream_read,BASE)(s);
*list = FN(LIST(EL),add)(*list, el);
if (!*list)
return isl_space_free(space);
return space;
}
/* Read a multi expression from "s".
*
* We first read a tuple space, collecting the element values in a list.
* Then we create an isl_multi_* from the space and the isl_*_list.
*/
__isl_give MULTI(BASE) *FN(isl_stream_read_multi,BASE)(
__isl_keep isl_stream *s)
{
struct vars *v;
isl_set *dom = NULL;
isl_space *space;
MULTI(BASE) *multi = NULL;
LIST(EL) *list;
v = vars_new(s->ctx);
if (!v)
return NULL;
dom = isl_set_universe(isl_space_params_alloc(s->ctx, 0));
if (next_is_tuple(s)) {
dom = read_map_tuple(s, dom, isl_dim_param, v, 1, 0);
if (isl_stream_eat(s, ISL_TOKEN_TO))
goto error;
}
if (!isl_set_plain_is_universe(dom))
isl_die(s->ctx, isl_error_invalid,
"expecting universe parameter domain", goto error);
if (isl_stream_eat(s, '{'))
goto error;
space = isl_set_get_space(dom);
list = FN(LIST(EL),alloc)(s->ctx, 0);
space = read_tuple_space(s, v, space, 1, 0, &FN(read_el,BASE), &list);
multi = FN(FN(MULTI(BASE),from),LIST(BASE))(space, list);
if (isl_stream_eat(s, '}'))
goto error;
vars_free(v);
isl_set_free(dom);
return multi;
error:
vars_free(v);
isl_set_free(dom);
FN(MULTI(BASE),free)(multi);
return NULL;
}
#undef TYPE_BASE
#define TYPE_BASE CAT(multi_,BASE)
#include "isl_read_from_str_templ.c"
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