Unicode / ASCII
Unicode Character Table / Miscellaneous Symbols and Pictograph
- Charcuterie / HN โ Visual similarity Unicode explorer
- if you click the pencil icon you can draw a shape to match against instead of searching with text or browsing with the dropdown
- find symbol by drawing it
- finding characters
- Unicode In Five Minutes / HN
# Emoji
# Usefull char
- star emoji - โ โ โ โ โ
- Check mark - Tick symbol - โ โ โ
- line - โโโฌ โ โ
- circle - โฆฟ โชโ โกโฃโฅโฆโงโจ / โฟโโโโโโโ โถ-โฉ / ๐
-๐
ฉ ๐โ ๐ซ โฝ
- [segment] - ๐ฏฐ๐ฏฑ๐ฏฒ๐ฏณ๐ฏด๐ฏต๐ฏถ๐ฏท๐ฏธ๐ฏน
- square - ๐ฐ ๐
- ๐ ฑ๐ พ๐๐ ด๐ ณ
- โฑancy - โณ
- Braille โ ณ โ ด โ ต โ ถ โ ท
- Arrow โ โ โ โ
- Battery ๐ ๐ชซ / power โป โผ โ โ โก ๐ ๐ก๐ฆ
- Temperature ๐ก
- Droplet ๐ง
- House โ๐ก
- โก Bourbaki dangerous bend symbol / HN
- robot ๐ค
- table or grid แแแแ
- computer โจ ๐จ ๐ป ๐ฅ ๐ณ ๐ฅ๏ธ ๐
- Storage: ๐พ ๐ / ๐ฟ ๐ฟ ๐ฝ ๐ด ๐ข๏ธ ๐๏ธ ๐๏ธ
- Link ๐
- pencils ๐ ๐ ๐ ๐๏ธ โ๏ธ โ๏ธ โ ๐
- external link arrow symbol (closest thing to it) ๐ โฎบ
- LLM icon - โก ๐ ๐ ๐ ๐ ๐ฃ
- pirates - ๐ดโโ ๏ธ ๐ด โ ๏ธ โ๏ธ ๐ช ๐ฆ
- witches - ๐ซ ๐งโโ๏ธ / ๐งโโ๏ธ โ๏ธ
- chimie - ๐งช
- transportation - ๐ธ ๐ ๐ช ๐ฉ๏ธ ๐ข โต ๐ถ ๐น ๐ต
- cars - ๐ ๐ ๐ ๐ ๐
- linux / windows - ๐ช๐ง
- color ๐ ๐จ ๐ฆ
- flower & tree - ๐ณ ๐ฒ ๐ง ๐ ๐ฑ ๐บ ๐ธ ๐ป ๐ผ ๐
- game ๐น๏ธ ๐ฎ ๐พ ๐งฟ
- idea ๐ญ ๐งฉ ๐ง
- sign โ ๏ธ
- phone โ๏ธ โ ๐ ๐ฑ
- hat & clothing ๐ฉ ๐งข ๐ ๐ช โ๏ธ ๐ฟ ๐
- clock โฐ ๐ฐ๏ธ ๐ โ
- zombie: ๐ง ๐งโโ๏ธ ๐งโโ๏ธ
- animals ๐พ ๐ ๐ฆ ๐ ๐ ๐ฟ๏ธ ๐ฆซ ๐ฆจ ๐ฆก ๐ฆ ๐ปโโ๏ธ ๐ป ๐ผ ๐บ ๐ฆ ๐จ ๐ฆ ๐น ๐ฐ ๐ญ ๐ฆ ๐ฏ ๐ฎ ๐ท ๐ ๐ด ๐ฆ ๐ฆ ๐ ๐ ๐ ๐ช ๐ซ
- birds ๐ง ๐ฆ ๐ฆ ๐ฆฉ ๐ฆ ๐ชถ
- T rex ๐ฆ
- fish ๐ ๐ ๐ก ๐ฆ ๐ ๐ณ ๐ฌ ๐ฆญ
- weather โ๏ธ
- audio / video - ๐ถ
- food - ๐ ๐ฅ ๐ ๐ฅช ๐ ๐ซ ๐ฑ ๐ฉ ๐ฅฏ
# UTF-8, UTF-16, and UTF-32 ?
Stick to UTF-8 and these three character sets - coding policy for software devlopment
Thatโs one of the great features of UTF-8. You can move forwards and backwards through a UTF-8 string without having to start from the beginning. - UTF-8 is a brilliant design
UTF-8 has an advantage in the case where ASCII characters represent the majority of characters in a block of text, because UTF-8 encodes these into 8 bits (like ASCII). It is also advantageous in that a UTF-8 file containing only ASCII characters has the same encoding as an ASCII file.
UTF-16 is better where ASCII is not predominant, since it uses 2 bytes per character, primarily. UTF-8 will start to use 3 or more bytes for the higher order characters where UTF-16 remains at just 2 bytes for most characters.
UTF-32 will cover all possible characters in 4 bytes. This makes it pretty bloated. I canโt think of any advantage to using it.
# ASCII
# Four Column ASCII / HN
Remember that ASCII is a 7 bit encoding. Letโs say the following:
- The first two bits denote the group of the character (2^2 so 4 possible values)
- The remaining five bits describe a character (2^5 so 32 possible values)
| 00 | 01 | 10 | 11 | 5last |
|---|---|---|---|---|
| NUL | Spc | @ | ` | 00000 |
| SOH | ! | A | a | 00001 |
| STX | โ | B | b | 00010 |
| โฆ | ย | ย | ย | ย |