Re: Derived age regexp

From: Eric Muller (emuller@adobe.com)
Date: Fri Oct 15 2010 - 21:28:59 CDT

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On 10/15/2010 3:19 PM, Tim Greenwood wrote:
> Is there any regular expression - in perl, or elsewhere, that enables
> searching on the derived age? I want to find all characters in a file
> added since Unicode 4.1.
> I could write it all by processing against the derived age file, but
> it would be nice if it is ready to go.
>

Xquery on the XML representation of the UCD is your friend. Eg

---
declare namespace u = "http://www.unicode.org/ns/2003/ucd/1.0";
for $c in doc('ucd.all.flat.xml')//u:ucd/u:repertoire/u:char[@age >= 4.1]
return concat ($c/@cp, " ", $c/@age, " ", $c/@na, "&#xa;" )
---
Eric.

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