+++ /dev/null
-/*
- * Copyright © 2016 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ao_scheme.h"
-
-static void string_mark(void *addr)
-{
- (void) addr;
-}
-
-static int string_size(void *addr)
-{
- struct ao_scheme_string *string = addr;
- if (!addr)
- return 0;
- return strlen(string->val) + 2;
-}
-
-static void string_move(void *addr)
-{
- (void) addr;
-}
-
-const struct ao_scheme_type ao_scheme_string_type = {
- .mark = string_mark,
- .size = string_size,
- .move = string_move,
- .name = "string",
-};
-
-static struct ao_scheme_string *
-ao_scheme_string_alloc(int len)
-{
- struct ao_scheme_string *s;
-
- s = ao_scheme_alloc(len + 2);
- if (!s)
- return NULL;
- s->type = AO_SCHEME_STRING;
- return s;
-}
-
-struct ao_scheme_string *
-ao_scheme_string_copy(struct ao_scheme_string *a)
-{
- int alen = strlen(a->val);
- struct ao_scheme_string *r;
-
- ao_scheme_string_stash(a);
- r = ao_scheme_string_alloc(alen);
- a = ao_scheme_string_fetch();
- if (!r)
- return NULL;
- strcpy(r->val, a->val);
- return r;
-}
-
-struct ao_scheme_string *
-ao_scheme_string_make(char *a)
-{
- struct ao_scheme_string *r;
-
- r = ao_scheme_string_alloc(strlen(a));
- if (!r)
- return NULL;
- strcpy(r->val, a);
- return r;
-}
-
-struct ao_scheme_string *
-ao_scheme_atom_to_string(struct ao_scheme_atom *a)
-{
- int alen = strlen(a->name);
- struct ao_scheme_string *r;
-
- ao_scheme_atom_stash(a);
- r = ao_scheme_string_alloc(alen);
- a = ao_scheme_atom_fetch();
- if (!r)
- return NULL;
- strcpy(r->val, a->name);
- return r;
-}
-
-struct ao_scheme_string *
-ao_scheme_string_cat(struct ao_scheme_string *a, struct ao_scheme_string *b)
-{
- int alen = strlen(a->val);
- int blen = strlen(b->val);
- struct ao_scheme_string *r;
-
- ao_scheme_string_stash(a);
- ao_scheme_string_stash(b);
- r = ao_scheme_string_alloc(alen + blen);
- b = ao_scheme_string_fetch();
- a = ao_scheme_string_fetch();
- if (!r)
- return NULL;
- strcpy(r->val, a->val);
- strcpy(r->val+alen, b->val);
- return r;
-}
-
-ao_poly
-ao_scheme_string_pack(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_string *r;
- char *rval;
- int len;
-
- len = ao_scheme_cons_length(cons);
- ao_scheme_cons_stash(cons);
- r = ao_scheme_string_alloc(len);
- cons = ao_scheme_cons_fetch();
- if (!r)
- return AO_SCHEME_NIL;
- rval = r->val;
-
- while (cons) {
- bool fail = false;
- ao_poly car = cons->car;
- *rval++ = ao_scheme_poly_integer(car, &fail);
- if (fail)
- return ao_scheme_error(AO_SCHEME_INVALID, "non-int passed to pack");
- cons = ao_scheme_cons_cdr(cons);
- }
- *rval++ = 0;
- return ao_scheme_string_poly(r);
-}
-
-ao_poly
-ao_scheme_string_unpack(struct ao_scheme_string *a)
-{
- struct ao_scheme_cons *cons = NULL, *tail = NULL;
- int c;
- int i;
-
- for (i = 0; (c = a->val[i]); i++) {
- struct ao_scheme_cons *n;
- ao_scheme_cons_stash(cons);
- ao_scheme_cons_stash(tail);
- ao_scheme_string_stash(a);
- n = ao_scheme_cons_cons(ao_scheme_int_poly(c), AO_SCHEME_NIL);
- a = ao_scheme_string_fetch();
- tail = ao_scheme_cons_fetch();
- cons = ao_scheme_cons_fetch();
-
- if (!n) {
- cons = NULL;
- break;
- }
- if (tail)
- tail->cdr = ao_scheme_cons_poly(n);
- else
- cons = n;
- tail = n;
- }
- return ao_scheme_cons_poly(cons);
-}
-
-void
-ao_scheme_string_write(ao_poly p, bool write)
-{
- struct ao_scheme_string *s = ao_scheme_poly_string(p);
- char *sval = s->val;
- char c;
-
- if (write) {
- putchar('"');
- while ((c = *sval++)) {
- switch (c) {
- case '\n':
- printf ("\\n");
- break;
- case '\r':
- printf ("\\r");
- break;
- case '\t':
- printf ("\\t");
- break;
- default:
- if (c < ' ')
- printf("\\%03o", c);
- else
- putchar(c);
- break;
- }
- }
- putchar('"');
- } else {
- while ((c = *sval++))
- putchar(c);
- }
-}
projects / fw / altos / blobdiff