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symbol-properties.js
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symbol-properties.js
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define([
"./supplemental-override",
"../number/numbering-system",
"../util/regexp/not-s"
], function( currencySupplementalOverride, numberNumberingSystem, regexpNotS ) {
/**
* symbolProperties( currency, cldr )
*
* Return pattern replacing `¤` with the appropriate currency symbol literal.
*/
return function( currency, cldr, options ) {
var currencySpacing, pattern, symbol,
symbolEntries = [ "symbol" ],
regexp = {
"[:digit:]": /\d/,
"[:^S:]": regexpNotS
};
// If options.symbolForm === "narrow" was passed, prepend it.
if ( options.symbolForm === "narrow" ) {
symbolEntries.unshift( "symbol-alt-narrow" );
}
symbolEntries.some(function( symbolEntry ) {
return symbol = cldr.main([
"numbers/currencies",
currency,
symbolEntry
]);
});
currencySpacing = [ "beforeCurrency", "afterCurrency" ].map(function( position ) {
return cldr.main([
"numbers",
"currencyFormats-numberSystem-" + numberNumberingSystem( cldr ),
"currencySpacing",
position
]);
});
pattern = cldr.main([
"numbers",
"currencyFormats-numberSystem-" + numberNumberingSystem( cldr ),
options.style === "accounting" ? "accounting" : "standard"
]);
pattern =
// The number of decimal places and the rounding for each currency is not locale-specific.
// Those values are overridden by Supplemental Currency Data.
currencySupplementalOverride( currency, pattern, cldr )
// Replace "¤" (\u00A4) with the appropriate symbol literal.
.split( ";" ).map(function( pattern ) {
return pattern.split( "\u00A4" ).map(function( part, i ) {
var currencyMatch = regexp[ currencySpacing[ i ].currencyMatch ],
surroundingMatch = regexp[ currencySpacing[ i ].surroundingMatch ],
insertBetween = "";
// For currencyMatch and surroundingMatch definitions, read [1].
// When i === 0, beforeCurrency is being handled. Otherwise, afterCurrency.
// 1: http://www.unicode.org/reports/tr35/tr35-numbers.html#Currencies
currencyMatch = currencyMatch.test( symbol.charAt( i ? symbol.length - 1 : 0 ) );
surroundingMatch = surroundingMatch.test(
part.charAt( i ? 0 : part.length - 1 ).replace( /[#@,.]/g, "0" )
);
if ( currencyMatch && part && surroundingMatch ) {
insertBetween = currencySpacing[ i ].insertBetween;
}
return ( i ? insertBetween : "" ) + part + ( i ? "" : insertBetween );
}).join( "'" + symbol + "'" );
}).join( ";" );
return {
pattern: pattern
};
};
});