private Recognizer CreateCurrencyRecognizer(Core.Resources.IResourceDataAccessor accessor,
System.Globalization.CultureInfo actualCulture)
{
Wordlist wl = new Wordlist();
using (System.IO.Stream data = accessor.ReadResourceData(actualCulture, Core.Resources.LanguageResourceType.CurrencySymbols, true))
{
if (data != null)
{
wl.Load(data);
}
}
if (wl.Count == 0)
{
return(null);
}
return(CurrencyRegexRecognizer.Create(actualCulture, wl, 100));
}
public static Recognizer Create(System.Globalization.CultureInfo culture,
Core.Wordlist currencySymbols,
int priority)
{
try
{
// TODO support non-blank languages for unit separation
Core.CharacterSet curFirst = null;
string currenciesRx = currencySymbols.GetRegularExpression(out curFirst);
int currencyPattern = culture.NumberFormat.CurrencyPositivePattern;
bool currencyPrecedesNumber = (currencyPattern % 2) == 0;
bool currencyIsSeparated = (currencyPattern >= 2);
CurrencyRegexRecognizer result = new CurrencyRegexRecognizer(100, "DEFAULT_CURRENCY_RECOGNIZER", culture);
Core.CharacterSet first = null;
// augmentation doesn't change FIRST()
// TODO use currency pattern instead of number pattern?
List <string> patterns = NumberRegexRecognizer.ComputeRXPatterns(culture, NumberSeparatorMode.CultureDefault, out first);
if (currencyPrecedesNumber)
{
first.Add(curFirst);
}
AugmentPatterns(patterns, currenciesRx, culture);
foreach (string p in patterns)
{
// use the same first for all patterns (the number regex pattern computer returns just one pattern anyway)
result.Add(p, first, 2);
}
/*
* Be strict for currencies (only flexible for measurements and numbers)
*
* if (NumberRegexRecognizer.CanSwapSeparators(culture))
* {
* patterns = NumberRegexRecognizer.ComputeRXPatterns(culture, NumberSeparatorMode.Swapped, out first);
* AugmentPatterns(patterns, currenciesRx, culture);
*
* foreach (string p in patterns)
* {
* result.Add(p, first, 1);
* }
* }
* if (NumberRegexRecognizer.AddENUSSeparators(culture))
* {
* patterns = NumberRegexRecognizer.ComputeRXPatterns(culture, NumberSeparatorMode.EnUS, out first);
* AugmentPatterns(patterns, currenciesRx, culture);
*
* foreach (string p in patterns)
* {
* result.Add(p, first, 0);
* }
* }
*/
result.OnlyIfFollowedByNonwordCharacter
= Core.CultureInfoExtensions.UseBlankAsWordSeparator(culture);
return(result);
}
catch // (System.Exception e)
{
return(null);
}
}