[classlib][luni]upgrade java.lang.Character to 5.0
Hi all, I have looked through the java.lang.Character and found there were several methods missing in Harmony. I'll try to implement these methods if no one objects :) All of these methods are coming with Supplementary Character Support of Tiger. That is, we should handle the character whose code point is after U+ in our code. After doing some research, I found there're two ways to achieve: 1.Maintain a HashMap contains the information of supplementary character and retrieve from it when these methods were invoked. 2.Delegate these methods to ICU4J, which provides extensions to the java.lang.Character class. What's your opinion? Any suggestion are welcome :) -- Tony Wu China Software Development Lab, IBM
Re: [classlib][luni]upgrade java.lang.Character to 5.0
On 9/8/06, Tony Wu [EMAIL PROTECTED] wrote: Hi all, I have looked through the java.lang.Character and found there were several methods missing in Harmony. I'll try to implement these methods if no one objects :) Great! Go ahead! All of these methods are coming with Supplementary Character Support of Tiger. That is, we should handle the character whose code point is after U+ in our code. After doing some research, I found there're two ways to achieve: 1.Maintain a HashMap contains the information of supplementary character and retrieve from it when these methods were invoked. Where does the data come from? 2.Delegate these methods to ICU4J, which provides extensions to the java.lang.Character class. I prefer this option, although ICU doesn't reponse very quickly. If icu4j works well, I think there's no reason for Harmony to reinvent the wheel. If there are some series bugs in ICU4J which may affect our goal, it's another story. For now, I strongly recommened you to study icu4j and take a try! Good luck. :-) What's your opinion? Any suggestion are welcome :) -- Tony Wu China Software Development Lab, IBM -- Andrew Zhang China Software Development Lab, IBM
Re: [classlib][luni]upgrade java.lang.Character to 5.0
Tony Wu 写道: Hi all, I have looked through the java.lang.Character and found there were several methods missing in Harmony. I'll try to implement these methods if no one objects :) All of these methods are coming with Supplementary Character Support of Tiger. That is, we should handle the character whose code point is after U+ in our code. After doing some research, I found there're two ways to achieve: 1.Maintain a HashMap contains the information of supplementary character and retrieve from it when these methods were invoked. 2.Delegate these methods to ICU4J, which provides extensions to the java.lang.Character class. What's your opinion? Any suggestion are welcome :) This task is to update current implementation of java.lang.Character, about some new feature of J2SE 5.0, it's important to reduce the risk of changing such a core class. The HashMap method may introduce more complexity and more maintenance effort into Harmony development, so I think delegating to ICU4J is the better choice. The only concern is that: does the ICU4J we currently using meet our need perfectly? - Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [classlib][luni]upgrade java.lang.Character to 5.0
On 9/8/06, Robert Hu [EMAIL PROTECTED] wrote: Tony Wu 写道: Hi all, I have looked through the java.lang.Character and found there were several methods missing in Harmony. I'll try to implement these methods if no one objects :) All of these methods are coming with Supplementary Character Support of Tiger. That is, we should handle the character whose code point is after U+ in our code. After doing some research, I found there're two ways to achieve: 1.Maintain a HashMap contains the information of supplementary character and retrieve from it when these methods were invoked. 2.Delegate these methods to ICU4J, which provides extensions to the java.lang.Character class. What's your opinion? Any suggestion are welcome :) This task is to update current implementation of java.lang.Character, about some new feature of J2SE 5.0, it's important to reduce the risk of changing such a core class. The HashMap method may introduce more complexity and more maintenance effort into Harmony development, so I think delegating to ICU4J is the better choice. The only concern is that: does the ICU4J we currently using meet our need perfectly? IMHO, the icu4j_3.4.4 which supports Unicode 4.1 will meet our requirement. Best regards, Richard - Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Richard Liang China Software Development Lab, IBM - Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
