In a project it took more than one hour to figure out how to find match regular expression of £ ( Pound sign).
You have to know what is Unicode character number.
for £ -> 00A3
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// In Javascript it will work
pattern = /\u00A3/;
output = string.match(pattern);
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Unicode character number list:
http://theorem.ca/~mvcorks/code/charsets/auto.html
Oh! so simple thing, I had no clew.
thank’s to Google.

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