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/*
Copyright 2021 Gabriel Jensen
This file is part of u8c.
u8c 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.
u8c 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 u8c.
If not, see <https://www.gnu.org/licenses/>.
*/
# include <assert.h>
# include <stdbool.h>
# include <stddef.h>
# include <stdint.h>
# include <u8c/is.h>
bool u8c_iscntrl(uint_least8_t * const _res,char32_t const _chr) {
assert(_res != NULL);
switch(_chr) {
default:
*_res = UINT8_C(0x0);
break;
case U'\x0': /* NULL */
case U'\x1': /* START OF HEADING */
case U'\x2': /* START OF TEXT */
case U'\x3': /* END OF TEXT */
case U'\x4': /* END OF TRANSMISSION */
case U'\x5': /* ENQUIRY */
case U'\x6': /* ACKNOWLEDGE */
case U'\a': /* BELL */
case U'\b': /* BACKSPACE */
case U'\t': /* HORIZONTAL TABULATION */
case U'\n': /* NEW LINE */
case U'\v': /* VERTICAL TABULATION */
case U'\f': /* FORM FEED */
case U'\r': /* CARRIAGE RETURN */
case U'\xE': /* SHIFT OUT */
case U'\xF': /* SHIFT IN */
case U'\x10': /* DATA LINK ESCAPE */
case U'\x11': /* DEVICE CONTROL ONE */
case U'\x12': /* DEVICE CONTROL TWO */
case U'\x13': /* DEVICE CONTROL THREE */
case U'\x14': /* DEVICE CONTROL FOUR */
case U'\x15': /* NEGATIVE ACKNOWLEDGE */
case U'\x16': /* SYNCHRONOUS IDLE */
case U'\x17': /* END OF TRANSMISSION BLOCK */
case U'\x18': /* CANCEL */
case U'\x19': /* END OF MEDIUM */
case U'\x1A': /* SUBSTITUTE */
case U'\x1B': /* ESCAPE */
case U'\x1C': /* FILE SEPERATOR */
case U'\x1D': /* GROUP SEPERATOR */
case U'\x1E': /* RECORD SEPERATOR */
case U'\x1F': /* UNIT SEPERATOR */
*_res = UINT8_C(0x1);
break;
}
return false;
}
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