RichTextUnicode.c

#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include <locale.h>

int main(int argc, char **argv) {
	wchar_t c;
	int A, a, zero, t = atoi(argv[1]);

	// courtesy: https://stackoverflow.com/a/43834410/1429450
	setlocale(LC_CTYPE, "");

	// offsets courtesy: https://yaytext.com/
	switch (t) {
		case 0: // bold serif
			A = 0x1d400;
			a = 0x1d41a;
			zero = 0x1d7ce;
			break;
		case 1: // bold sans
			A = 0x1d5d4;
			a = 0x1d5ee;
			zero = 0x1d7ec;
			break;
		case 2: // italic serif
			A = 0x1d434;
			a = 0x1d44e;
			zero = '0';
			break;
		case 3: // italic sans
			A = 0x1d608;
			a = 0x1d622;
			zero = '0';
			break;
		case 4: // bold italic serif
			A = 0x1d468;
			a = 0x1d482;
			zero = '0';
			break;
		case 5: // bold italic sans
			A = 0x1d63c;
			a = 0x1d656;
			zero = '0';
			break;
		case 6: // script
			A = 0x1d49c;
			a = 0x1d4b6;
			zero = '0';
			break;
		case 7: // bold script
			A = 0x1d4d0;
			a = 0x1d4ea;
			zero = '0';
			break;
		case 8: // double-struck
			A = 0x1d538;
			a = 0x1d552;
			zero = 0x1d7d8;
			break;
		case 9: // monospace
			A = 0x1d670;
			a = 0x1d68a;
			zero = '0';
			break;
		case 10: // fraktur
			A = 0x1d504;
			a = 0x1d51e;
			zero = '0';
			break;
		case 11: // bold fraktur
			A = 0x1d56c;
			a = 0x1d586;
			zero = '0';
			break;
		case 12: // full width
			A = 0xff21;
			a = 0xff41;
			zero = 0xff10;
			break;
		case 13: // bubble text
			A = 0x24b6;
			a = 0x24d0;
			zero = 0x2460;
			break;
		case 14: // black bubble text
			A = 0x1f150;
			a = 0x1f150;
			zero = 0x2775;
			break;
		case 15: // square
			A = 0x1f130;
			a = 0x1f130;
			zero = '0';
			break;
		case 16: // parenthesis
			A = 0x1f110;
			a = 0x249c;
			zero = 0x2473;
			break;
	}

	while (wscanf(L"%lc", &c) != EOF)
		if (c >= 'A' && c <= 'Z') // uppercase
			wprintf(L"%lc", A + c - 'A');
		else if (c >= 'a' && c <= 'z') // lowercase
			wprintf(L"%lc", a + c - 'a');
		else if (c >= '0' && c <= '9') // numerals
			wprintf(L"%lc", zero + c - '0');
		else // everything else
			wprintf(L"%lc", c);

	return 0;
}

/* Works for the most part, but there are some hickups that need special treatment:

parallel 'echo "ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789" | echo {} `./RichTextUnicode {}`' ::: `seq 0 16`
0 𝐀𝐁𝐂𝐃𝐄𝐅𝐆𝐇𝐈𝐉𝐊𝐋𝐌𝐍𝐎𝐏𝐐𝐑𝐒𝐓𝐔𝐕𝐖𝐗𝐘𝐙 𝐚𝐛𝐜𝐝𝐞𝐟𝐠𝐡𝐢𝐣𝐤𝐥𝐦𝐧𝐨𝐩𝐪𝐫𝐬𝐭𝐮𝐯𝐰𝐱𝐲𝐳 𝟎𝟏𝟐𝟑𝟒𝟓𝟔𝟕𝟖𝟗
1 𝗔𝗕𝗖𝗗𝗘𝗙𝗚𝗛𝗜𝗝𝗞𝗟𝗠𝗡𝗢𝗣𝗤𝗥𝗦𝗧𝗨𝗩𝗪𝗫𝗬𝗭 𝗮𝗯𝗰𝗱𝗲𝗳𝗴𝗵𝗶𝗷𝗸𝗹𝗺𝗻𝗼𝗽𝗾𝗿𝘀𝘁𝘂𝘃𝘄𝘅𝘆𝘇 𝟬𝟭𝟮𝟯𝟰𝟱𝟲𝟳𝟴𝟵
2 𝐴𝐵𝐶𝐷𝐸𝐹𝐺𝐻𝐼𝐽𝐾𝐿𝑀𝑁𝑂𝑃𝑄𝑅𝑆𝑇𝑈𝑉𝑊𝑋𝑌𝑍 𝑎𝑏𝑐𝑑𝑒𝑓𝑔𝑕𝑖𝑗𝑘𝑙𝑚𝑛𝑜𝑝𝑞𝑟𝑠𝑡𝑢𝑣𝑤𝑥𝑦𝑧 0123456789
3 𝘈𝘉𝘊𝘋𝘌𝘍𝘎𝘏𝘐𝘑𝘒𝘓𝘔𝘕𝘖𝘗𝘘𝘙𝘚𝘛𝘜𝘝𝘞𝘟𝘠𝘡 𝘢𝘣𝘤𝘥𝘦𝘧𝘨𝘩𝘪𝘫𝘬𝘭𝘮𝘯𝘰𝘱𝘲𝘳𝘴𝘵𝘶𝘷𝘸𝘹𝘺𝘻 0123456789
4 𝑨𝑩𝑪𝑫𝑬𝑭𝑮𝑯𝑰𝑱𝑲𝑳𝑴𝑵𝑶𝑷𝑸𝑹𝑺𝑻𝑼𝑽𝑾𝑿𝒀𝒁 𝒂𝒃𝒄𝒅𝒆𝒇𝒈𝒉𝒊𝒋𝒌𝒍𝒎𝒏𝒐𝒑𝒒𝒓𝒔𝒕𝒖𝒗𝒘𝒙𝒚𝒛 0123456789
5 𝘼𝘽𝘾𝘿𝙀𝙁𝙂𝙃𝙄𝙅𝙆𝙇𝙈𝙉𝙊𝙋𝙌𝙍𝙎𝙏𝙐𝙑𝙒𝙓𝙔𝙕 𝙖𝙗𝙘𝙙𝙚𝙛𝙜𝙝𝙞𝙟𝙠𝙡𝙢𝙣𝙤𝙥𝙦𝙧𝙨𝙩𝙪𝙫𝙬𝙭𝙮𝙯 0123456789
6 𝒜𝒝𝒞𝒟𝒠𝒡𝒢𝒣𝒤𝒥𝒦𝒧𝒨𝒩𝒪𝒫𝒬𝒭𝒮𝒯𝒰𝒱𝒲𝒳𝒴𝒵 𝒶𝒷𝒸𝒹𝒺𝒻𝒼𝒽𝒾𝒿𝓀𝓁𝓂𝓃𝓄𝓅𝓆𝓇𝓈𝓉𝓊𝓋𝓌𝓍𝓎𝓏 0123456789
8 𝔸𝔹𝔺𝔻𝔼𝔽𝔾𝔿𝕀𝕁𝕂𝕃𝕄𝕅𝕆𝕇𝕈𝕉𝕊𝕋𝕌𝕍𝕎𝕏𝕐𝕑 𝕒𝕓𝕔𝕕𝕖𝕗𝕘𝕙𝕚𝕛𝕜𝕝𝕞𝕟𝕠𝕡𝕢𝕣𝕤𝕥𝕦𝕧𝕨𝕩𝕪𝕫 𝟘𝟙𝟚𝟛𝟜𝟝𝟞𝟟𝟠𝟡
9 𝙰𝙱𝙲𝙳𝙴𝙵𝙶𝙷𝙸𝙹𝙺𝙻𝙼𝙽𝙾𝙿𝚀𝚁𝚂𝚃𝚄𝚅𝚆𝚇𝚈𝚉 𝚊𝚋𝚌𝚍𝚎𝚏𝚐𝚑𝚒𝚓𝚔𝚕𝚖𝚗𝚘𝚙𝚚𝚛𝚜𝚝𝚞𝚟𝚠𝚡𝚢𝚣 0123456789
7 𝓐𝓑𝓒𝓓𝓔𝓕𝓖𝓗𝓘𝓙𝓚𝓛𝓜𝓝𝓞𝓟𝓠𝓡𝓢𝓣𝓤𝓥𝓦𝓧𝓨𝓩 𝓪𝓫𝓬𝓭𝓮𝓯𝓰𝓱𝓲𝓳𝓴𝓵𝓶𝓷𝓸𝓹𝓺𝓻𝓼𝓽𝓾𝓿𝔀𝔁𝔂𝔃 0123456789
10 𝔄𝔅𝔆𝔇𝔈𝔉𝔊𝔋𝔌𝔍𝔎𝔏𝔐𝔑𝔒𝔓𝔔𝔕𝔖𝔗𝔘𝔙𝔚𝔛𝔜𝔝 𝔞𝔟𝔠𝔡𝔢𝔣𝔤𝔥𝔦𝔧𝔨𝔩𝔪𝔫𝔬𝔭𝔮𝔯𝔰𝔱𝔲𝔳𝔴𝔵𝔶𝔷 0123456789
11 𝕬𝕭𝕮𝕯𝕰𝕱𝕲𝕳𝕴𝕵𝕶𝕷𝕸𝕹𝕺𝕻𝕼𝕽𝕾𝕿𝖀𝖁𝖂𝖃𝖄𝖅 𝖆𝖇𝖈𝖉𝖊𝖋𝖌𝖍𝖎𝖏𝖐𝖑𝖒𝖓𝖔𝖕𝖖𝖗𝖘𝖙𝖚𝖛𝖜𝖝𝖞𝖟 0123456789
12 ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ ０１２３４５６７８９
13 ⒶⒷⒸⒹⒺⒻⒼⒽⒾⒿⓀⓁⓂⓃⓄⓅⓆⓇⓈⓉⓊⓋⓌⓍⓎⓏ ⓐⓑⓒⓓⓔⓕⓖⓗⓘⓙⓚⓛⓜⓝⓞⓟⓠⓡⓢⓣⓤⓥⓦⓧⓨⓩ ①②③④⑤⑥⑦⑧⑨⑩
14 🅐🅑🅒🅓🅔🅕🅖🅗🅘🅙🅚🅛🅜🅝🅞🅟🅠🅡🅢🅣🅤🅥🅦🅧🅨🅩 🅐🅑🅒🅓🅔🅕🅖🅗🅘🅙🅚🅛🅜🅝🅞🅟🅠🅡🅢🅣🅤🅥🅦🅧🅨🅩 ❵❶❷❸❹❺❻❼❽❾
15 🄰🄱🄲🄳🄴🄵🄶🄷🄸🄹🄺🄻🄼🄽🄾🄿🅀🅁🅂🅃🅄🅅🅆🅇🅈🅉 🄰🄱🄲🄳🄴🄵🄶🄷🄸🄹🄺🄻🄼🄽🄾🄿🅀🅁🅂🅃🅄🅅🅆🅇🅈🅉 0123456789
16 🄐🄑🄒🄓🄔🄕🄖🄗🄘🄙🄚🄛🄜🄝🄞🄟🄠🄡🄢🄣🄤🄥🄦🄧🄨🄩 ⒜⒝⒞⒟⒠⒡⒢⒣⒤⒥⒦⒧⒨⒩⒪⒫⒬⒭⒮⒯⒰⒱⒲⒳⒴⒵ ⑳⑴⑵⑶⑷⑸⑹⑺⑻⑼

*/