[classlib] Requirement: Regex support for \p{javaDigit}
Hello All,
I'm trying to implement java.util.Scanner.nextInt, which requires a
regular expression pattern to represent Integer. I find it's hard to
express /NonASCIIDigit /because now Harmony regex does not support
/NonASCIIDigit/.
As our regex has supported \p{javaLowerCase} Equivalent to
java.lang.Character.isLowerCase(), to facilitate the development of
j.u.Scanner, shall we provide support for \p{javaDigit}, which is
equivalent to java.lang.Character.isDigit()? I could provide patch for
this feature if there is no objection. Thanks lot.
*
*You may want to refer to the number syntax in java.util.Scanner Spec:*
*/QUOTE
NonASCIIDigit :: = A non-ASCII character c for which
Character.isDigit(c) returns true
Non0Digit ::= [1-Rmax] | NonASCIIDigit
Digit ::= [0-Rmax] | NonASCIIDigit
GroupedNumeral :: = ( Non0Digit Digit? Digit? ( LocalGroupSeparator
Digit Digit Digit )+ )
Numeral ::= ( ( Digit+ ) | GroupedNumeral )
Integer ::= ( [-+]? ( Numeral ) ) | LocalPositivePrefix Numeral
LocalPositiveSuffix | LocalNegativePrefix Numeral LocalNegativeSuffix/
//QUOTE/
--
Richard Liang
China Software Development Lab, IBM
Re: [classlib] Requirement: Regex support for \p{javaDigit}
Hello Richard,
Thanks for pointing this out. While implementing java character
classes I missed the fact that _all_ Character.isXXX methods except
deprecated should have corresponding \\p{javaXXX} character class
analogues. So the the answer to your question whether we should
implement javaDigit char class is YES.
I've opened an issue to support the rest of character classes:
http://issues.apache.org/jira/browse/HARMONY-696
Also, thanks a lot for your willing to add javaDigit class, but if you
don't mind I would implement full range of {javaXXX} classes by myself
just because it would be easier for me, as for an author :-).
Hopefully, I'll be ready with this tomorrow.
On 6/28/06, Richard Liang [EMAIL PROTECTED] wrote:
Hello All,
I'm trying to implement java.util.Scanner.nextInt, which requires a
regular expression pattern to represent Integer. I find it's hard to
express /NonASCIIDigit /because now Harmony regex does not support
/NonASCIIDigit/.
As our regex has supported \p{javaLowerCase} Equivalent to
java.lang.Character.isLowerCase(), to facilitate the development of
j.u.Scanner, shall we provide support for \p{javaDigit}, which is
equivalent to java.lang.Character.isDigit()? I could provide patch for
this feature if there is no objection. Thanks lot.
*
*You may want to refer to the number syntax in java.util.Scanner Spec:*
*/QUOTE
NonASCIIDigit :: = A non-ASCII character c for which
Character.isDigit(c) returns true
Non0Digit ::= [1-Rmax] | NonASCIIDigit
Digit ::= [0-Rmax] | NonASCIIDigit
GroupedNumeral :: = ( Non0Digit Digit? Digit? ( LocalGroupSeparator
Digit Digit Digit )+ )
Numeral ::= ( ( Digit+ ) | GroupedNumeral )
Integer ::= ( [-+]? ( Numeral ) ) | LocalPositivePrefix Numeral
LocalPositiveSuffix | LocalNegativePrefix Numeral LocalNegativeSuffix/
//QUOTE/
--
Richard Liang
China Software Development Lab, IBM
-
Terms of use : http://incubator.apache.org/harmony/mailing.html
To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: [classlib] Requirement: Regex support for \p{javaDigit}
That's great! Nik. You're so helpful. Thanks a lot. ;-)
Nikolay Kuznetsov wrote:
Hello Richard,
Thanks for pointing this out. While implementing java character
classes I missed the fact that _all_ Character.isXXX methods except
deprecated should have corresponding \\p{javaXXX} character class
analogues. So the the answer to your question whether we should
implement javaDigit char class is YES.
I've opened an issue to support the rest of character classes:
http://issues.apache.org/jira/browse/HARMONY-696
Also, thanks a lot for your willing to add javaDigit class, but if you
don't mind I would implement full range of {javaXXX} classes by myself
just because it would be easier for me, as for an author :-).
Hopefully, I'll be ready with this tomorrow.
On 6/28/06, Richard Liang [EMAIL PROTECTED] wrote:
Hello All,
I'm trying to implement java.util.Scanner.nextInt, which requires a
regular expression pattern to represent Integer. I find it's hard to
express /NonASCIIDigit /because now Harmony regex does not support
/NonASCIIDigit/.
As our regex has supported \p{javaLowerCase} Equivalent to
java.lang.Character.isLowerCase(), to facilitate the development of
j.u.Scanner, shall we provide support for \p{javaDigit}, which is
equivalent to java.lang.Character.isDigit()? I could provide patch for
this feature if there is no objection. Thanks lot.
*
*You may want to refer to the number syntax in java.util.Scanner Spec:*
*/QUOTE
NonASCIIDigit :: = A non-ASCII character c for which
Character.isDigit(c) returns true
Non0Digit ::= [1-Rmax] | NonASCIIDigit
Digit ::= [0-Rmax] | NonASCIIDigit
GroupedNumeral :: = ( Non0Digit Digit? Digit? ( LocalGroupSeparator
Digit Digit Digit )+ )
Numeral ::= ( ( Digit+ ) | GroupedNumeral )
Integer ::= ( [-+]? ( Numeral ) ) | LocalPositivePrefix Numeral
LocalPositiveSuffix | LocalNegativePrefix Numeral LocalNegativeSuffix/
//QUOTE/
--
Richard Liang
China Software Development Lab, IBM
-
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--
Richard Liang
China Software Development Lab, IBM
-
Terms of use : http://incubator.apache.org/harmony/mailing.html
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