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Euro
Currency used in 12 countries of the European Union (Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal and Spain). From a technical standpoint the introduction of the Euro introduces a couple of challenges:
 | The Euro character
The Euro character is among the 30+ characters present in Windows 1252 (0x80) but not in ISO 8859-1 (aka. Latin 1). Since for many developers Windows 1252 = ISO 8859-1 you may easilly find *incorrect* 8859-1 streams (e.g. Internet Explorer shows such problems). Euro support in the ISO 8859 character set familly is introduces by ISO 8859-15 (aka. Latin 9) which defines the Euro character at position 0xA4 (currency symbol in Latin 1).
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Double pricing
Switching currencies is not an easy thing to do and many customers in the Euro zone still appreciate double pricing (e.g. see a price in both Euro and their (ex) nationnal currency. This double pricing may even be mandatory for countries that are in the process of switching to the Euro. This may impact your user interface design!
Convertion
Very specific rounding and calculation rules exist to convert Euro into the (ex) National currencies of the countries in the Euro zone. All software should obey them.
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Related directory category:
Global Knowledge > Currencies
Article submitted by: Thierry Sourbier
Last modified: 2009-10-20
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