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Clean up comment formatting re: UTF-8 stuff

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Bill Kendrick 2021-11-03 21:28:03 -07:00
parent 0eb9409ea5
commit f46df76736
1 changed files with 33 additions and 29 deletions
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62
src/tuxpaint.c
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@ -22,7 +22,7 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(See COPYING.txt) (See COPYING.txt)
June 14, 2002 - October 29, 2021 June 14, 2002 - November 3, 2021
*/ */
#include "platform.h" #include "platform.h"
@ -1665,54 +1665,58 @@ static SDL_Surface *render_text_w(TuxPaint_Font * restrict font, const wchar_t *
{ {
if (str[i] <= 0x0000007F) if (str[i] <= 0x0000007F)
{ {
/* 0x00000000 - 0x0000007F: /* Range: 0x00000000 - 0x0000007F:
0xxxxxxx */
In: 00abcdef
Out: 00abcdef */
utfstr[j++] = (str[i] & 0x7F); utfstr[j++] = (str[i] & 0x7F);
} }
else if (str[i] <= 0x000007FF) else if (str[i] <= 0x000007FF)
{ {
/* 0x00000080 - 0x000007FF: /* Range: 0x00000080 - 0x000007FF:
00000abc defghijk In: 00000abc defghijk
110abcde 10fghijk */ Out: 110abcde 10fghijk */
utfstr[j++] = (((str[i] & 0x0700) >> 6) | /* -----abc -------- to ---abc-- */ utfstr[j++] = (((str[i] & 0x0700) >> 6) | /* -----abc -------- to ---abc-- */
((str[i] & 0x00C0) >> 6) | /* -------- de------ to ------de */ ((str[i] & 0x00C0) >> 6) | /* -------- de------ to ------de */
(0xC0)); /* add 110----- */ (0xC0)); /* add 110----- */
utfstr[j++] = (((str[i] & 0x003F)) | /* -------- --fghijk to --fghijk */ utfstr[j++] = (((str[i] & 0x003F)) | /* -------- --fghijk to --fghijk */
(0x80)); /* add 10------ */ (0x80)); /* add 10------ */
} }
else if (str[i] <= 0x0000FFFF) else if (str[i] <= 0x0000FFFF)
{ {
/* 0x00000800 - 0x0000FFFF: /* Range: 0x00000800 - 0x0000FFFF:
abcdefgh ijklmnop In: abcdefgh ijklmnop
1110abcd 10efghij 10klmnop */ Out: 1110abcd 10efghij 10klmnop */
utfstr[j++] = (((str[i] & 0xF000) >> 12) | /* abcd---- -------- to ----abcd */ utfstr[j++] = (((str[i] & 0xF000) >> 12) | /* abcd---- -------- to ----abcd */
(0xE0)); /* add 1110---- */ (0xE0)); /* add 1110---- */
utfstr[j++] = (((str[i] & 0x0FC0) >> 6) | /* ----efgh ij------ to --efghij */ utfstr[j++] = (((str[i] & 0x0FC0) >> 6) | /* ----efgh ij------ to --efghij */
(0x80)); /* add 10------ */ (0x80)); /* add 10------ */
utfstr[j++] = (((str[i] & 0x003F)) | /* -------- --klmnop to --klmnop */ utfstr[j++] = (((str[i] & 0x003F)) | /* -------- --klmnop to --klmnop */
(0x80)); /* add 10------ */ (0x80)); /* add 10------ */
} }
else else
{ {
/* 0x00010000 - 0x001FFFFF: /* Range: 0x00010000 - 0x001FFFFF:
11110abc 10defghi 10jklmno 10pqrstu */
utfstr[j++] = (((str[i] & 0x1C0000) >> 18) | /* ---abc-- -------- -------- to -----abc */ In: 000abcde fghijklm nopqrstu
(0xF0)); /* add 11110000 */ Out: 11110abc 10defghi 10jklmno 10pqrstu */
utfstr[j++] = (((str[i] & 0x030000) >> 12) | /* ------de -------- -------- to --de---- */
((str[i] & 0x00F000) >> 12) | /* -------- fghi---- -------- to ----fghi */ utfstr[j++] = (((str[i] & 0x1C0000) >> 18) | /* ---abc-- -------- -------- to -----abc */
(0x80)); /* add 10------ */ (0xF0)); /* add 11110000 */
utfstr[j++] = (((str[i] & 0x000F00) >> 6) | /* -------- ----jklm -------- to --jklm-- */ utfstr[j++] = (((str[i] & 0x030000) >> 12) | /* ------de -------- -------- to --de---- */
((str[i] & 0x0000C0) >> 6) | /* -------- -------- no------ to ------no */ ((str[i] & 0x00F000) >> 12) | /* -------- fghi---- -------- to ----fghi */
(0x80)); /* add 10------ */ (0x80)); /* add 10------ */
utfstr[j++] = ((str[i] & 0x00003F) | /* -------- -------- --pqrstu to --prqstu */ utfstr[j++] = (((str[i] & 0x000F00) >> 6) | /* -------- ----jklm -------- to --jklm-- */
(0x80)); /* add 10------ */ ((str[i] & 0x0000C0) >> 6) | /* -------- -------- no------ to ------no */
(0x80)); /* add 10------ */
utfstr[j++] = ((str[i] & 0x00003F) | /* -------- -------- --pqrstu to --prqstu */
(0x80)); /* add 10------ */
} }
} }
utfstr[j] = '\0'; utfstr[j] = '\0';