From 198ca931c72a4aae00d03776eb6dec677e0f23b1 Mon Sep 17 00:00:00 2001
From: Ian Coleman <ian@iancoleman.io>
Date: Wed, 13 Nov 2019 09:25:14 +1100
Subject: [PATCH] Fix acronyms for camel case

---
 acronyms.go   | 5 +++++
 camel.go      | 6 ++++++
 camel_test.go | 2 ++
 3 files changed, 13 insertions(+)
 create mode 100644 acronyms.go

diff --git a/acronyms.go b/acronyms.go
new file mode 100644
index 0000000..3b06064
--- /dev/null
+++ b/acronyms.go
@@ -0,0 +1,5 @@
+package strcase
+
+var uppercaseAcronym = map[string]bool{
+	"ID": true,
+}
diff --git a/camel.go b/camel.go
index c2f01b1..4aab39a 100644
--- a/camel.go
+++ b/camel.go
@@ -60,6 +60,9 @@ func toCamelInitCase(s string, initCase bool) string {
 
 // ToCamel converts a string to CamelCase
 func ToCamel(s string) string {
+	if uppercaseAcronym[s] {
+		s = strings.ToLower(s)
+	}
 	return toCamelInitCase(s, true)
 }
 
@@ -68,6 +71,9 @@ func ToLowerCamel(s string) string {
 	if s == "" {
 		return s
 	}
+	if uppercaseAcronym[s] {
+		s = strings.ToLower(s)
+	}
 	if r := rune(s[0]); r >= 'A' && r <= 'Z' {
 		s = strings.ToLower(string(r)) + s[1:]
 	}
diff --git a/camel_test.go b/camel_test.go
index f1f71ba..e82e53d 100644
--- a/camel_test.go
+++ b/camel_test.go
@@ -40,6 +40,7 @@ func TestToCamel(t *testing.T) {
 		{"AnyKind of_string", "AnyKindOfString"},
 		{"odd-fix", "OddFix"},
 		{"numbers2And55with000", "Numbers2And55With000"},
+		{"ID", "Id"},
 	}
 	for _, i := range cases {
 		in := i[0]
@@ -58,6 +59,7 @@ func TestToLowerCamel(t *testing.T) {
 		{"", ""},
 		{"AnyKind of_string", "anyKindOfString"},
 		{"AnyKind.of-string", "anyKindOfString"},
+		{"ID", "id"},
 	}
 	for _, i := range cases {
 		in := i[0]