88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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ncdg - A program to help generate natechoe.dev
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Copyright (C) 2022 Nate Choe (natechoe9@gmail.com)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <util.h>
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struct string *newstring() {
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struct string *ret;
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ret = malloc(sizeof *ret);
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if (ret == NULL)
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return NULL;
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ret->len = 0;
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ret->alloc = 20;
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ret->data = malloc(ret->alloc);
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if (ret->data == NULL)
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return NULL;
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return ret;
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}
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void freestring(struct string *str) {
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free(str->data);
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free(str);
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}
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int appendcharstring(struct string *str, char c) {
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if (str->len >= str->alloc) {
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char *newdata;
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size_t newalloc;
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newalloc = str->alloc * 2;
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newdata = realloc(str->data, newalloc);
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if (newdata == NULL) {
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return 1;
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}
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str->data = newdata;
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str->alloc = newalloc;
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}
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str->data[str->len++] = c;
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return 0;
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}
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int appendstrstring(struct string *str, char *s) {
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size_t len;
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len = strlen(s);
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if (str->len + len >= str->alloc) {
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char *newdata;
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size_t newalloc;
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newalloc = str->alloc;
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while (str->len + len >= newalloc)
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newalloc *= 2;
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newdata = realloc(str->data, newalloc);
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if (newdata == NULL)
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return 1;
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str->data = newdata;
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str->alloc = newalloc;
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}
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memcpy(str->data + str->len, s, len);
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str->len += len;
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return 0;
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}
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void resetstring(struct string *str) {
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str->len = 0;
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}
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int isctrl(int c) {
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return (0 <= c && c <= 0x1f) || c == 0x7f;
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}
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int ispunc(int c) {
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return strchr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", c) != NULL;
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}
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