predicate.h

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/*
 * 🧵 str — predicate.h
 * Copyright (c) 2025–2026 Fawn <rubiefawn@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#pragma once
#include "str.h"

bool char_is_alnum(char c);

bool char_is_alpha(char c);

bool char_is_lower(char c);

bool char_is_upper(char c);

bool char_is_digit(char c);

bool char_is_xdigit(char c);

bool char_is_cntrl(char c);

bool char_is_graph(char c);

bool char_is_space(char c);

bool char_is_blank(char c);

bool char_is_print(char c);

bool char_is_punct(char c);

bool cstr_is_alnum(const char *c);

bool cstr_is_alpha(const char *c);

bool cstr_is_lower(const char *c);

bool cstr_is_upper(const char *c);

bool cstr_is_digit(const char *c);

bool cstr_is_xdigit(const char *c);

bool cstr_is_cntrl(const char *c);

bool cstr_is_graph(const char *c);

bool cstr_is_space(const char *c);

bool cstr_is_blank(const char *c);

bool cstr_is_print(const char *c);

bool cstr_is_punct(const char *c);

bool str_is_alnum(str c);

bool str_is_alpha(str c);

bool str_is_lower(str c);

bool str_is_upper(str c);

bool str_is_digit(str c);

bool str_is_xdigit(str c);

bool str_is_cntrl(str c);

bool str_is_graph(str c);

bool str_is_space(str c);

bool str_is_blank(str c);

bool str_is_print(str c);

bool str_is_punct(str c);