1 files changed, 103 insertions, 0 deletions
diff --git a/locale/plural.go b/locale/plural.go
new file mode 100644
index 0000000..3b14c38
--- /dev/null
+++ b/locale/plural.go
@@ -0,0 +1,103 @@
+// Copyright 2018 Frédéric Guillot. All rights reserved.
+// Use of this source code is governed by the Apache 2.0
+// license that can be found in the LICENSE file.
+
+package locale // import "miniflux.app/locale"
+
+type pluralFormFunc func(n int) int
+
+// See https://localization-guide.readthedocs.io/en/latest/l10n/pluralforms.html
+// And http://www.unicode.org/cldr/charts/29/supplemental/language_plural_rules.html
+var pluralForms = map[string]pluralFormFunc{
+	// nplurals=2; plural=(n != 1);
+	"default": func(n int) int {
+		if n != 1 {
+			return 1
+		}
+
+		return 0
+	},
+	// nplurals=6; plural=(n==0 ? 0 : n==1 ? 1 : n==2 ? 2 : n%100>=3 && n%100<=10 ? 3 : n%100>=11 ? 4 : 5);
+	"ar_AR": func(n int) int {
+		if n == 0 {
+			return 0
+		}
+
+		if n == 1 {
+			return 1
+		}
+
+		if n == 2 {
+			return 2
+		}
+
+		if n%100 >= 3 && n%100 <= 10 {
+			return 3
+		}
+
+		if n%100 >= 11 {
+			return 4
+		}
+
+		return 5
+	},
+	// nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;
+	"cs_CZ": func(n int) int {
+		if n == 1 {
+			return 0
+		}
+
+		if n >= 2 && n <= 4 {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"pl_PL": func(n int) int {
+		if n == 1 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=2; plural=(n > 1);
+	"pt_BR": func(n int) int {
+		if n > 1 {
+			return 1
+		}
+		return 0
+	},
+	// nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"ru_RU": func(n int) int {
+		if n%10 == 1 && n%100 != 11 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
+	"sr_RS": func(n int) int {
+		if n%10 == 1 && n%100 != 11 {
+			return 0
+		}
+
+		if n%10 >= 2 && n%10 <= 4 && (n%100 < 10 || n%100 >= 20) {
+			return 1
+		}
+
+		return 2
+	},
+	// nplurals=1; plural=0;
+	"zh_CN": func(n int) int {
+		return 0
+	},
+}