| `Character.getNumericValue` has unexpected behaviour: it interprets A-Z as |
| base-36 digits with values 10-35, but also supports non-arabic numerals and |
| miscellaneous numeric unicode characters like ㊷. For example: |
| |
| * `Character.getNumericValue('V' /* ASCII V */) == 31` |
| * `Character.getNumericValue('Ⅴ' /* U+2164, Roman numeral 5 */) == 5` |
| * `Character.getNumericValue('௧' /* U+0BF2, Tamil Digit One */) == 1` |
| * `Character.getNumericValue('௲' /* U+0BF2, Tamil Number One Thousand */) == |
| 1000` |
| * `Character.getNumericValue('㊷' /* U+32B7, Circled Number Forty Two */) == |
| 42` |
| |
| [`UCharacter.getNumericValue`](https://unicode-org.github.io/icu-docs/apidoc/released/icu4j/com/ibm/icu/lang/UCharacter.html#getNumericValue-int-) |
| has the same behavior. |
| |
| Consider using: |
| |
| * [`UCharacter.getUnicodeNumericValue`](https://unicode-org.github.io/icu-docs/apidoc/released/icu4j/com/ibm/icu/lang/UCharacter.html#getUnicodeNumericValue-int-): |
| Handles all unicode codepoints with numeric values including fractions, |
| roman numerals, and other miscellaneous numeric characters. Returns the |
| value as a double. Does not assign a value to A-Z. |
| * [`Character.digit`](https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html#digit-char-int-): |
| Handles unicode codepoints in the "decimal digit" category and the letters |
| A-Z which are interpreted as base-36 digits with values 10-35. Does not |
| handle characters like roman numerals and ㊷. You can use a `radix` value of |
| 10 or less to avoid interpreting A-Z as digits. |
