diff options
Diffstat (limited to 'src/u8c/u8.h.d/u8enc.c')
-rw-r--r-- | src/u8c/u8.h.d/u8enc.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/u8c/u8.h.d/u8enc.c b/src/u8c/u8.h.d/u8enc.c deleted file mode 100644 index 2ac0007..0000000 --- a/src/u8c/u8.h.d/u8enc.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - 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/SIZE_C.h> -# include <u8c/err.h> -# include <u8c/main.h> -# include <u8c/str.h> -# include <u8c/u8.h> -# include <uchar.h> -struct u8c_u8enc_tuple u8c_u8enc(char32_t const * const restrict _in) { - struct u8c_u8enc_tuple ret = { - .stat = false, - }; - size_t insz = SIZE_C(0x0); /* Size of input array (bytes). */ - for(register size_t n = SIZE_C(0x0);n <= SIZE_MAX;n += SIZE_C(0x1)) { /* First pass: get size of input array, and determine size of output array. */ - register char32_t const tmp = _in[n]; - if(tmp > u8c_unimax) { /* Codepoint out of range. */ - u8c_seterr(u8c_errtyp_stroor,U"u8c_u8enc: Codepoint out of range (too big)."); - ret.stat = true; - return ret; - } - if(tmp >= UINT32_C(0x10000)) { /* 4 bytes. */ - ret.u8sz += SIZE_C(0x4); - continue; - } - if(tmp >= UINT32_C(0x800)) { /* 3 bytes. */ - ret.u8sz += SIZE_C(0x3); - continue; - } - if(tmp >= UINT32_C(0x80)) { /* 2 bytes. */ - ret.u8sz += SIZE_C(0x2); - continue; - } - /* 1 byte. */ - ret.u8sz += SIZE_C(0x1); - if(tmp == UINT32_C(0x0)) { - insz = n + SIZE_C(0x1); - goto nottoobig; - } - } - u8c_seterr(u8c_errtyp_untermin,U"u8c_u8enc: Unterminated input."); - ret.stat = true; - return ret; -nottoobig:; - unsigned char * out = NULL; - { - struct u8c_u8alloc_tuple const tuple = u8c_u8alloc(ret.u8sz + SIZE_C(0x1)); - if(tuple.stat) { - ret.stat = true; - return ret; - } - out = tuple.u8; - } - for(register size_t n = SIZE_C(0x0), outn = SIZE_C(0x0);n < insz;n += SIZE_C(0x1),outn += SIZE_C(0x1)) { /* Second pass: encode each codepoint into UTF-8. */ - register char32_t const tmp = _in[n]; - if(tmp >= UINT32_C(0x10000)) { // Four bytes. - out[outn] = UINT8_C(0b11110000) + (uint_least8_t)(tmp >> UINT32_C(0x12)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0b10000000) + (uint_least8_t)(tmp >> UINT32_C(0xC) & UINT8_C(0b00111111)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0b10000000) + (uint_least8_t)(tmp >> UINT32_C(0x6) & UINT8_C(0b00111111)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0b10000000) + (uint_least8_t)(tmp & UINT32_C(0b00111111)); - continue; - } - if(tmp >= UINT32_C(0x800)) { /* Three bytes. */ - out[outn] = UINT8_C(0xE0) + (uint_least8_t)(tmp >> UINT32_C(0xC)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0x80) + (uint_least8_t)(tmp >> UINT32_C(0x6) & UINT8_C(0b00111111)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0x80) + (uint_least8_t)(tmp & UINT32_C(0b00111111)); - continue; - } - if(tmp >= UINT32_C(0x80)) { /* Two bytes. */ - out[outn] = UINT8_C(0xC0) + (uint_least8_t)(tmp >> UINT8_C(0x6)); - outn += SIZE_C(0x1); - out[outn] = UINT8_C(0x80) + (uint_least8_t)(tmp & UINT8_C(0b00111111)); - continue; - } - /* One byte. */ - out[outn] = (uint_least8_t)tmp; - } - ret.u8 = out; - return ret; -} |