/*
	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/isalpha.h>
bool u8c_isalpha(uint_least8_t * const _res,char32_t const _chr) {
	assert(_res != NULL);
	switch(_chr) {
	default:
		*_res = UINT8_C(0x0);
		break;
	case UINT32_C(0x61):   /* LATIN SMALL LETTER A */
	case UINT32_C(0x62):   /* LATIN SMALL LETTER B */
	case UINT32_C(0x63):   /* LATIN SMALL LETTER C */
	case UINT32_C(0x64):   /* LATIN SMALL LETTER D */
	case UINT32_C(0x65):   /* LATIN SMALL LETTER E */
	case UINT32_C(0x66):   /* LATIN SMALL LETTER F */
	case UINT32_C(0x67):   /* LATIN SMALL LETTER G */
	case UINT32_C(0x68):   /* LATIN SMALL LETTER H */
	case UINT32_C(0x69):   /* LATIN SMALL LETTER I */
	case UINT32_C(0x6A):   /* LATIN SMALL LETTER J */
	case UINT32_C(0x6B):   /* LATIN SMALL LETTER K */
	case UINT32_C(0x6C):   /* LATIN SMALL LETTER L */
	case UINT32_C(0x6D):   /* LATIN SMALL LETTER M */
	case UINT32_C(0x6E):   /* LATIN SMALL LETTER N */
	case UINT32_C(0x6F):   /* LATIN SMALL LETTER O */
	case UINT32_C(0x70):   /* LATIN SMALL LETTER P */
	case UINT32_C(0x71):   /* LATIN SMALL LETTER Q */
	case UINT32_C(0x72):   /* LATIN SMALL LETTER R */
	case UINT32_C(0x73):   /* LATIN SMALL LETTER S */
	case UINT32_C(0x74):   /* LATIN SMALL LETTER T */
	case UINT32_C(0x75):   /* LATIN SMALL LETTER U */
	case UINT32_C(0x76):   /* LATIN SMALL LETTER V */
	case UINT32_C(0x77):   /* LATIN SMALL LETTER W */
	case UINT32_C(0x78):   /* LATIN SMALL LETTER X */
	case UINT32_C(0x79):   /* LATIN SMALL LETTER Y */
	case UINT32_C(0x7A):   /* LATIN SMALL LETTER Z */
	case UINT32_C(0xDF):   /* LATIN SMALL LETTER SHARP S */
	case UINT32_C(0xE1):   /* LATIN SMALL LETTER A WITH ACUTE */
	case UINT32_C(0xE4):   /* LATIN SMALL LETTER A WITH DIAERESIS */
	case UINT32_C(0xE5):   /* LATIN SMALL LETTER A WITH RING ABOVE */
	case UINT32_C(0xE6):   /* LATIN SMALL LETTER AE */
	case UINT32_C(0xE7):   /* LATIN SMALL LETTER C WITH CEDILLA */
	case UINT32_C(0xE9):   /* LATIN SMALL LETTER E WITH ACUTE */
	case UINT32_C(0xED):   /* LATIN SMALL LETTER I WITH ACUTE */
	case UINT32_C(0xF0):   /* LATIN SMALL LETTER ETH */
	case UINT32_C(0xF3):   /* LATIN SMALL LETTER O WITH ACUTE */
	case UINT32_C(0xF6):   /* LATIN SMALL LETTER O WITH DIAERESIS */
	case UINT32_C(0xF8):   /* LATIN SMALL LETTER O WITH STROKE */
	case UINT32_C(0xFA):   /* LATIN SMALL LETTER U WITH ACUTE */
	case UINT32_C(0xFC):   /* U WITH TWO DOTS */
	case UINT32_C(0xFD):   /* LATIN SMALL LETTER Y WITH ACUTE */
	case UINT32_C(0xFE):   /* LATIN SMALL LETTER THORN */
	case UINT32_C(0x105):  /* LATIN SMALL LETTER A WITH OGONEK */
	case UINT32_C(0x107):  /* LATIN SMALL LETTER C WITH ACUTE */
	case UINT32_C(0x10D):  /* LATIN SMALL LETTER C WITH CARON */
	case UINT32_C(0x10F):  /* LATIN SMALL LETTER D WITH CARON */
	case UINT32_C(0x119):  /* LATIN SMALL LETTER E WITH OGONEK */
	case UINT32_C(0x11B):  /* LATIN SMALL LETTER E WITH CARON */
	case UINT32_C(0x11F):  /* LATIN SMALL LETTER G WITH BREVE */
	case UINT32_C(0x131):  /* LATIN SMALL LETTER DOTLESS I */
	case UINT32_C(0x133):  /* LATIN SMALL LIGATURE LJ */
	case UINT32_C(0x138):  /* LATIN SMALL LETTER KRA */
	case UINT32_C(0x142):  /* LATIN SMALL LETTER L WITH STROKE */
	case UINT32_C(0x144):  /* LATIN SMALL LETTER N WITH ACUTE */
	case UINT32_C(0x148):  /* LATIN SMALL LETTER N WITH CARON */
	case UINT32_C(0x14B):  /* LATIN SMALL LETTER ENG */
	case UINT32_C(0x153):  /* LATIN SMALL LIGATURE OE */
	case UINT32_C(0x159):  /* LATIN SMALL LETTER R WITH CARON */
	case UINT32_C(0x15B):  /* LATIN SMALL LETTER S WITH ACUTE */
	case UINT32_C(0x15F):  /* LATIN SMALL LETTER S WITH CEDILLA */
	case UINT32_C(0x161):  /* LATIN SMALL LETTER S WITH CARON */
	case UINT32_C(0x165):  /* LATIN SMALL LETTER T WITH CARON */
	case UINT32_C(0x16F):  /* LATIN SMALL LETTER U WITH RING ABOVE */
	case UINT32_C(0x17A):  /* LATIN SMALL LETTER Z WITH ACUTE */
	case UINT32_C(0x17C):  /* LATIN SMALL LETTER Z WITH DOT ABOVE */
	case UINT32_C(0x17E):  /* LATIN SMALL LETTER Z WITH CARON */
	case UINT32_C(0x1BF):  /* LATIN LETTER WYNN */
	case UINT32_C(0x1DD):  /* LATIN SMALL LETTER TURNED E */
	case UINT32_C(0x21D):  /* LATIN SMALL LETTER YOGH */
	case UINT32_C(0x251):  /* LATIN SMALL LETTER ALPHA */
	case UINT32_C(0x254):  /* LATIN SMALL LETTER OPEN O */
	case UINT32_C(0x259):  /* LATIN SMALL LETTER SCHWA */
	case UINT32_C(0x25B):  /* LATIN SMALL LETTER OPEN E */
	case UINT32_C(0x263):  /* LATIN SMALL LETTER GAMMA */
	case UINT32_C(0x269):  /* LATIN SMALL LETTER IOTA */
	case UINT32_C(0x283):  /* LATIN SMALL LETTER ESH */
	case UINT32_C(0x28A):  /* LATIN SMALL LETTER UPSILON */
	case UINT32_C(0x28B):  /* LATIN SMALL LETTER V WITH HOOK */
	case UINT32_C(0x292):  /* LATIN SMALL LETTER EZH */
	case UINT32_C(0x294):  /* LATIN SMALL LETTER GLOTTAL STOP */
	case UINT32_C(0x3B1):  /* GREEK SMALL LETTER ALPHA */
	case UINT32_C(0x3B2):  /* GREEK SMALL LETTER BETA */
	case UINT32_C(0x3B3):  /* GREEK SMALL LETTER GAMMA */
	case UINT32_C(0x3B4):  /* GREEK SMALL LETTER DELTA */
	case UINT32_C(0x3B5):  /* GREEK SMALL LETTER EPSILON */
	case UINT32_C(0x3B6):  /* GREEK SMALL LETTER ZETA */
	case UINT32_C(0x3B7):  /* GREEK SMALL LETTER ETA */
	case UINT32_C(0x3B8):  /* GREEK SMALL LETTER THETA */
	case UINT32_C(0x3B9):  /* GREEK SMALL LETTER IOTA */
	case UINT32_C(0x3BA):  /* GREEK SMALL LETTER KAPPA */
	case UINT32_C(0x3BB):  /* GREEK SMALL LETTER LAMBDA */
	case UINT32_C(0x3BC):  /* GREEK SMALL LETTER MU */
	case UINT32_C(0x3BD):  /* GREEK SMALL LETTER NU */
	case UINT32_C(0x3BE):  /* GREEK SMALL LETTER XI */
	case UINT32_C(0x3BF):  /* GREEK SMALL LETTER OMICRON */
	case UINT32_C(0x3C0):  /* GREEK SMALL LETTER PI */
	case UINT32_C(0x3C1):  /* GREEK SMALL LETTER RHO */
	case UINT32_C(0x3C2):  /* GREEK SMALL LETTER FINAL SIGMA */
	case UINT32_C(0x3C3):  /* GREEK SMALL LETTER SIGMA */
	case UINT32_C(0x3C4):  /* GREEK SMALL LETTER TAU */
	case UINT32_C(0x3C5):  /* GREEK SMALL LETTER UPSILON */
	case UINT32_C(0x3C6):  /* GREEK SMALL LETTER PHI */
	case UINT32_C(0x3C7):  /* GREEK SMALL LETTER CHI */
	case UINT32_C(0x3C8):  /* GREEK SMALL LETTER PSI */
	case UINT32_C(0x3C9):  /* GREEK SMALL LETTER OMEGA */
	case UINT32_C(0x1D79): /* LATIN SMALL LETTER INSULAR G */
	case UINT32_C(0xA7B7): /* LATIN SMALL LETTER OMEGA */
	case UINT32_C(0xFB00): /* LATIN SMALL LIGATURE FF */
		*_res = UINT8_C(0x1);
		break;
	}
	return false;
}