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- /*
- * ctype.c
- *
- * Copyright (C) 2017 Aleksandar Andrejevic <theflash@sdf.lonestar.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #include <string.h>
- int isprint(int c)
- {
- return c >= 0x20 && c <= 0x7E;
- }
- int isdigit(int c)
- {
- return c >= '0' && c <= '9';
- }
- int isxdigit(int c)
- {
- return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
- }
- int isspace(int c)
- {
- return strchr(" \t\n\v\f\r", c) != NULL;
- }
- char tolower(char c)
- {
- if (c >= 'A' && c <= 'Z') c += 'a' - 'A';
- return c;
- }
- char toupper(char c)
- {
- if (c >= 'a' && c <= 'z') c -= 'a' - 'A';
- return c;
- }
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