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improved documentation

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Charles Iliya Krempeaux 2023-08-16 06:09:08 -07:00
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@ -187,30 +187,6 @@ Some examples of UTF-8 encoding of Unicode code points are:
</tbody>
</table>
```
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━┳━━━━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
| UTF-8 encoding | | | | | |
┣━━━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━━┫ | | | | |
| byte 1 ┋ byte 2 ┋ byte 3 ┋ byte 4 | value | code point | decimal | binary | name |
┡━━━━━━━━━━━━━╇━━━━━━━━━━━━━╇━━━━━━━━━━━━━╇━━━━━━━━━━━━━╇━━━━━━━╇━━━━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┩
│ 0b0,1000001 ┊ ┊ ┊ │ A │ U+0041 │ 65 │ 0b0000,0000,0100,0001 │ LATIN CAPITAL LETTER A │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b0,1110010 ┊ ┊ ┊ │ r │ U+0072 │ 114 │ 0b0000,0000,0111,0010 │ LATIN SMALL LETTER R │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b110,00010 ┊ 0b10,100001 ┊ ┊ │ ¡ │ U+00A1 │ 161 │ 0b0000,0000,1010,0001 │ INVERTED EXCLAMATION MARK │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b110,11011 ┊ 0b10,110101 ┊ ┊ │ ۵ │ U+06F5 │ 1781 │ 0b0000,0110,1111,0101 │ EXTENDED ARABIC-INDIC DIGIT FIVE │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b1110,0010 ┊ 0b10,000000 ┊ 0b10,110001 ┊ │ ‱ │ U+2031 │ 8241 │ 0b0010,0000,0011,0001 │ PER TEN THOUSAND SIGN │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b1110,0010 ┊ 0b10,001001 ┊ 0b10,100001 ┊ │ ≡ │ U+2261 │ 8801 │ 0b0010,0010,0110,0001 │ IDENTICAL TO │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b11110,000 ┊ 0b10,010000 ┊ 0b10,001111 ┊ 0b10,010101 │ 𐏕 │ U+000103D5 │ 66517 │ 0b0001,0000,0011,1101,0101 │ OLD PERSIAN NUMBER HUNDRED │
├-------------┼-------------┼-------------┼-------------┼-------┼------------┼---------┼----------------------------┼----------------------------------┤
│ 0b11110,000 ┊ 0b10,011111 ┊ 0b10,011001 ┊ 0b10,000010 │ 🙂 │ U+0001F642 │ 128578 │ 0b0001,1111,0110,0100,0010 │ SLIGHTLY SMILING FACE │
└-------------┴-------------┴-------------┴-------------┴-------┴------------┴---------┴----------------------------┴----------------------------------┘
```
## UTF-8 Versus ASCII
UTF-8 was (partially) designed to be backwards compatible with 7-bit ASCII.