improve: recognize "грн" word (without price) as UAH.

Fix #1297

Author: php-coder

src/main/java/ru/mystamps/web/feature/series/importing/SeriesInfoExtractorServiceImpl.java

@@ -79,7 +79,7 @@ public class SeriesInfoExtractorServiceImpl implements SeriesInfoExtractorServic
 	private static final Pattern RUB_CURRENCY_REGEXP = Pattern.compile("[0-9][ ]?р(уб|\\.)");
 
 	// Regular expression that matches Ukrainian hryvnia.
-	private static final Pattern UAH_CURRENCY_REGEXP = Pattern.compile("[0-9] грн");
+	private static final Pattern UAH_CURRENCY_REGEXP = Pattern.compile("([0-9] |\\b)грн\\b");
 
 	// Regular expression that matches US dollar.
 	private static final Pattern USD_CURRENCY_REGEXP = Pattern.compile("[0-9]\\$");

src/test/groovy/ru/mystamps/web/feature/series/importing/SeriesInfoExtractorServiceImplTest.groovy

@@ -670,6 +670,8 @@ class SeriesInfoExtractorServiceImplTest extends Specification {
 			fragment | _
 			'CAD'    | _
 			'труб'   | _
+			'агрн'   | _
+			'грном'  | _
 	}
 
 	def 'extractCurrency() should extract exactly specified currency'() {
@@ -710,6 +712,7 @@ class SeriesInfoExtractorServiceImplTest extends Specification {
 			service.extractCurrency(fragment) == 'UAH'
 		where:
 			fragment     | _
+			'грн'        | _
 			'135.74 грн' | _
 	}