Kbase P82168: I18N What is an exchangeable pair
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
5/27/2004 |
|
Status: Unverified
GOAL:
I18N What is an exchangeable pair
FIX:
A sequence of two adjacent characters in a string is an exchangeable pair if the combining class (from the Unicode Character Database) for the first character is greater than the combining class for the second, and the second is not a starter; that is, if combiningClass(first) > combiningClass(second) > 0.
Examples of exchangeable pairs:
Sequence Combining classes Status
<acute, cedilla> 230, 202 exchangeable, since 230 > 202
<a, acute> 0, 230 not exchangeable, since 0 <= 230
<diaeresis, acute> 230, 230 not exchangeable, since 230 <= 230
<acute, a> 230, 0 not exchangeable, since the second class is zero.