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Internationalization and Localization WordCamp Bern 2017

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Pascal Birchler
 @swissspidy

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beat around the bush

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um den heissen Brei herumreden

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Why Internationalization?

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The process of creating a product in such a way that it can be easily adapted to specific local languages and cultures Internationalization (I18N)

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The process of adapting a product or service to a particular language, culture, and desired local “look-and-feel.” Localization (L10N)

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“Localization is like translation but with a cultural twist” Localization

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Locales

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Locale ≠ Language

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Flag ≠ Language

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flagsarenotlanguages.com

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Dates

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12/05/2017

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Numbers

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123 456.99 123,456.99 123’456.99 123.456,99

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Right to Left Icons Symbols Puns Timezones Legal Currencies Numbers Formal/Informal Support Units

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Dealing with Locales

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Locale Detection

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Accept-Language: es, en-gb;q=0.8, en;q=0.7

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Internationalization in User Interfaces

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Symbols ✅ ⭕

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Personal Names

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David Lloyd George

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Lang Leyen Little Lovett von der

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Implications for Field Design

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Fonts

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Left-to-Right Right-to-Left

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Internationalization in Development

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String Extraction

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function translateIt( $str ) { // Do something. } __( 'Foo' ); // ✓ translateIt( 'Bar' ); // ☓ __( 'Baz' ); // ✓

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$foo = 'Hello World'; __( $foo ); // ☓

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Plural Forms

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if ( $num == 1 ) printf( __( '%d item' ), $num ) else printf( __( '%d items' ), $num )

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printf( _n( '%d item', '%d items', $num ), $num )

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printf(_n('%d item', '%d items', 1), 1) printf(_n('%d item', '%d items', 2), 2) printf(_n('%d item', '%d items', 5), 5)

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Context

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_x('Update', 'verb' ) _x('Update', 'noun' )

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Resources

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developer.wordpress.org

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Localization Management

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w3.org/internationalization

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cldr.unicode.org

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Conclusion

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1. Don’t make assumptions 2. Understand cultural values 3. i18n from the beginning 4. Don’t reinvent the wheel

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Further Reading

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Thank You.