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92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
/* See the end of this file for copyright and license terms. */
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#include <errno.h>
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#include <string.h>
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#include "neo/_error.h"
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#include "neo/_nalloc.h"
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#include "neo/_nref.h"
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#include "neo/_nstr.h"
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#include "neo/_stddef.h"
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#include "neo/_types.h"
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#include "neo/utf.h"
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nstr_t *nstrmul(nstr_t *s, usize n, error *err)
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{
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if (s == nil) {
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yeet(err, EFAULT, "String is nil");
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return 0;
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}
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if (nlen(s) == 0 || n == 0)
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return nstr("", err);
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if (n == 1)
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return nstrdup(s, err);
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usize s_size = strlen(s->_data);
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char *multiplied = nalloc(s_size * n + 1, err);
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catch(err) {
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return nil;
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}
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char *pos = multiplied;
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while (n-- != 0) {
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strcpy(pos, s->_data);
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pos += s_size;
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}
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nstr_t *ret = nstr(multiplied, err);
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nfree(multiplied);
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return ret;
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}
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nstr_t *nstrmul_put(nstr_t *s, usize n, error *err)
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{
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nstr_t *mul = nstrmul(s, n, err);
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catch(err) {
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return nil;
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}
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nput(s);
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return mul;
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}
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nstr_t *nchrmul(nchar c, usize n, error *err)
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{
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if (n == 0)
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return nstr("", err);
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char s[5];
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usize s_size = utf8_from_nchr(&s[0], c, err);
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catch(err) {
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return nil;
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}
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char *multiplied = nalloc(s_size * n + 1, err);
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catch(err) {
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return nil;
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}
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char *pos = multiplied;
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while (n-- != 0) {
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memcpy(pos, &s[0], s_size);
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pos += s_size;
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}
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nstr_t *ret = nstr(multiplied, err);
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nfree(multiplied);
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return ret;
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}
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/*
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* This file is part of libneo.
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* Copyright (c) 2021 Fefie <owo@fef.moe>.
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*
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* libneo is non-violent software: you may only use, redistribute,
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* and/or modify it under the terms of the CNPLv6+ as found in
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* the LICENSE file in the source code root directory or at
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* <https://git.pixie.town/thufie/CNPL>.
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*
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* libneo comes with ABSOLUTELY NO WARRANTY, to the extent
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* permitted by applicable law. See the CNPLv6+ for details.
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*/
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