From d412da9f09355ce512e12de49433e82c4b58d8ac Mon Sep 17 00:00:00 2001
From: Evgeniy Vasilev <aquilax@gmail.com>
Date: Tue, 27 Sep 2022 22:29:43 +0200
Subject: [PATCH] Adds support for Bulgarian language (#66)
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* Adds support for Bulgarian language
* Alphabetic sort

Co-authored-by: Dobrosław Żybort <matrixik@gmail.com>
---
 languages_substitution.go | 64 +++++++++++++++++++++++++++++++++++++++
 slug.go                   |  2 ++
 slug_test.go              |  6 ++++
 3 files changed, 72 insertions(+)

diff --git a/languages_substitution.go b/languages_substitution.go
index ad0963f..54a044d 100644
--- a/languages_substitution.go
+++ b/languages_substitution.go
@@ -10,6 +10,7 @@ func init() {
 	// TODO: Find better way so all langs are merged automatically and better
 	// tested.
 	for _, sub := range []*map[rune]string{
+		&bgSub,
 		&csSub,
 		&deSub,
 		&enSub,
@@ -189,3 +190,66 @@ var trSub = map[rune]string{
 	'ç': "c",
 	'Ç': "C",
 }
+
+var bgSub = map[rune]string{
+	'А': "A",
+	'Б': "B",
+	'В': "V",
+	'Г': "G",
+	'Д': "D",
+	'Е': "E",
+	'Ж': "Zh",
+	'З': "Z",
+	'И': "I",
+	'Й': "Y",
+	'К': "K",
+	'Л': "L",
+	'М': "M",
+	'Н': "N",
+	'О': "O",
+	'П': "P",
+	'Р': "R",
+	'С': "S",
+	'Т': "T",
+	'У': "U",
+	'Ф': "F",
+	'Х': "H",
+	'Ц': "Ts",
+	'Ч': "Ch",
+	'Ш': "Sh",
+	'Щ': "Sh",
+	'Ъ': "A",
+	'Ь': "Y",
+	'Ю': "Yu",
+	'Я': "Ya",
+	'а': "a",
+	'б': "b",
+	'в': "v",
+	'г': "g",
+	'д': "d",
+	'е': "e",
+	'ж': "zh",
+	'з': "z",
+	'и': "i",
+	'й': "y",
+	'к': "k",
+	'л': "l",
+	'м': "m",
+	'н': "n",
+	'о': "o",
+	'п': "p",
+	'р': "r",
+	'с': "s",
+	'т': "t",
+	'у': "u",
+	'ф': "f",
+	'х': "h",
+	'ц': "ts",
+	'ч': "ch",
+	'ш': "sh",
+	'щ': "sht",
+	'ъ': "a",
+	'ь': "y",
+	'ю': "yu",
+	'я': "ya",
+}
diff --git a/slug.go b/slug.go
index 14acce7..98192f1 100644
--- a/slug.go
+++ b/slug.go
@@ -57,6 +57,8 @@ func MakeLang(s string, lang string) (slug string) {
 	// Process string with selected substitution language.
 	// Catch ISO 3166-1, ISO 639-1:2002 and ISO 639-3:2007.
 	switch strings.ToLower(lang) {
+	case "bg", "bgr":
+		slug = SubstituteRune(slug, bgSub)
 	case "cs", "ces":
 		slug = SubstituteRune(slug, csSub)
 	case "de", "deu":
diff --git a/slug_test.go b/slug_test.go
index baace64..0505da1 100644
--- a/slug_test.go
+++ b/slug_test.go
@@ -73,6 +73,8 @@ func TestSlugMakeLang(t *testing.T) {
 		want      string
 		lowercase bool
 	}{
+		{"bg", "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯабвгдежзийклмнопрстуфхцчшщъьюя", "abvgdezhziyklmnoprstufhtschshshayyuyaabvgdezhziyklmnoprstufhtschshshtayyuya", true},
+		{"bg", "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЮЯабвгдежзийклмнопрстуфхцчшщъьюя", "ABVGDEZhZIYKLMNOPRSTUFHTsChShShAYYuYaabvgdezhziyklmnoprstufhtschshshtayyuya", false},
 		{"cs", "ěščřžýáíéúůóňťĚŠČŘŽÝÁÍÉÚŮÓŇŤ", "escrzyaieuuontescrzyaieuuont", true},
 		{"cs", "ěščřžýáíéúůóňťĚŠČŘŽÝÁÍÉÚŮÓŇŤ", "escrzyaieuuontESCRZYAIEUUONT", false},
 		{"ces", "ěščřžýáíéúůóňťĚŠČŘŽÝÁÍÉÚŮÓŇŤ", "escrzyaieuuontescrzyaieuuont", true},
@@ -94,7 +96,9 @@ func TestSlugMakeLang(t *testing.T) {
 		{"tr", "şüöğıçŞÜÖİĞÇ", "suogicSUOIGC", false},
 		{"kk", "әғһіңөқұүӘҒҺІҢӨҚҰҮ", "aghinoquuaghinoquu", true},
 		{"kk", "әғһіңөқұүӘҒҺІҢӨҚҰҮ", "aghinoquuAGHINOQUU", false},
+
 		// & fun.
+		{"bg", "Това и онова", "tova-i-onova", true},
 		{"cs", "Toto & Tamto", "toto-a-tamto", true},
 		{"cs", "Toto & Tamto", "Toto-a-Tamto", false},
 		{"cs", "Toto @ Tamto", "toto-zavinac-tamto", true},
@@ -132,8 +136,10 @@ func TestSlugMakeLang(t *testing.T) {
 		{"sl", "đanković & Kožušček", "dzankovic-in-kozuscek", true},
 		{"sl", "ĐankoVIĆ & KOŽUŠČEK", "DZankoVIC-in-KOZUSCEK", false},
 		{"test", "This & that", "this-and-that", true}, // unknown lang, fallback to "en"
+
 		// Test defaultSub, when adding new lang copy/paste this line,
 		// it contain special characters.
+		{"bg", "1\"2'3’4‒5–6—7―8", "1234-5-6-7-8", true},
 		{"cs", "1\"2'3’4‒5–6—7―8", "1234-5-6-7-8", true},
 		{"de", "1\"2'3’4‒5–6—7―8", "1234-5-6-7-8", true},
 		{"en", "1\"2'3’4‒5–6—7―8", "1234-5-6-7-8", true},