ardix/include/ctype.h
Felix f0dc3a3433
kiss capitalism goodbye for good
The CNPL will make sure that absolutely no corporation is going to get
anywhere near Ardix -- exactly as it should be.  Fuck you, corporations!
2021-05-10 16:19:38 +02:00

128 lines
3.5 KiB
C

/* See the end of this file for copyright, license, and warranty information. */
#pragma once
#include <toolchain.h>
/**
* Return whether `c` is an alphabetic character.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is an alphabetic character, zero if not.
*/
__const __shared int isalpha(int c);
/**
* Return whether `c` is a control character.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a control character, zero if not.
*/
__const __shared int iscntrl(int c);
/**
* Return whether `c` is a digit.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a digit, zero if not.
*/
__const __shared int isdigit(int c);
/**
* Return whether `c` is a printable character except space.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a printable character and not space,
* zero if not.
*/
__const __shared int isgraph(int c);
/**
* Return whether `c` is a lowercase letter.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is lowercase, zero if not.
*/
__const __shared int islower(int c);
/**
* Return whether `c` is a printable character including space.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a printable character, zero if not.
*/
__const __shared int isprint(int c);
/**
* Return whether `c` is a printable character
* but neither alphanumeric nor space.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a punctuation character, zero if not.
*/
__const __shared int ispunct(int c);
/**
* Return whether `c` is a white-space character.
* These are: space, line-feed (`\n`), vertical tab (`\v`), form-feed (`\f`),
* and carriage return (`\r`).
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a white-space character, zero if not.
*/
__const __shared int isspace(int c);
/**
* Return whether `c` is an uppercase letter.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is uppercase, zero if not.
*/
__const __shared int isupper(int c);
/**
* Return whether `c` is a hexadecimal digit.
* This includes: 0-9, A-F and a-f.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a blaank character, zero if not.
*/
__const __shared int isxdigit(int c);
/**
* Return whether `c` is a 7-bit unsigned char.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is an ASCII character, zero if not.
*/
__const __shared int isascii(int c);
/**
* Return whether `c` is a space or a tab character.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if `c` is a blank character, zero if not.
*/
__const __shared int isblank(int c);
/**
* Check whether `c` is an alphanumeric character.
* Equivalent to `(isalpha(c) || isdigit(c))`.
*
* @param c: The character, cast to an `int`.
* @returns A nonzero value if the character is alphanumeric, zero if not.
*/
__const __shared int isalnum(int c);
/*
* This file is part of Ardix.
* Copyright (c) 2020, 2021 Felix Kopp <owo@fef.moe>.
*
* Ardix is non-violent software: you may only use, redistribute,
* and/or modify it under the terms of the CNPLv6+ as found in
* the LICENSE file in the source code root directory or at
* <https://git.pixie.town/thufie/CNPL>.
*
* Ardix comes with ABSOLUTELY NO WARRANTY, to the extent
* permitted by applicable law. See the CNPLv6+ for details.
*/