Refactor kafka to pure Go (franz-go), fix DBC stubs, update Dockerfile

pkg/can-go/internal/identifiers/case.go

@@ -0,0 +1,17 @@
+package identifiers
+
+import "unicode"
+
+func IsCamelCase(s string) bool {
+	i := 0
+	for _, r := range s {
+		if unicode.IsDigit(r) {
+			continue
+		}
+		if i == 0 && !unicode.IsUpper(r) || !IsAlphaChar(r) && !IsNumChar(r) {
+			return false
+		}
+		i++
+	}
+	return true
+}

pkg/can-go/internal/identifiers/case_test.go

@@ -0,0 +1,18 @@
+package identifiers
+
+import (
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+func TestIsCamelCase(t *testing.T) {
+	assert.Assert(t, IsCamelCase("SOC"))
+	assert.Assert(t, IsCamelCase("Camel"))
+	assert.Assert(t, IsCamelCase("CamelCase"))
+	assert.Assert(t, IsCamelCase("111CamelCaseNr"))
+	assert.Assert(t, !IsCamelCase("camelCase"))
+	assert.Assert(t, !IsCamelCase("snake_case"))
+	assert.Assert(t, !IsCamelCase("kebab-case"))
+	assert.Assert(t, !IsCamelCase("111camelCaseNr"))
+}

pkg/can-go/internal/identifiers/char.go

@@ -0,0 +1,9 @@
+package identifiers
+
+func IsAlphaChar(r rune) bool {
+	return ('A' <= r && r <= 'Z') || ('a' <= r && r <= 'z')
+}
+
+func IsNumChar(r rune) bool {
+	return '0' <= r && r <= '9'
+}

pkg/can-go/internal/identifiers/char_test.go

@@ -0,0 +1,23 @@
+package identifiers
+
+import (
+	"testing"
+
+	"gotest.tools/v3/assert"
+)
+
+func TestIsAlphaChar(t *testing.T) {
+	assert.Assert(t, IsAlphaChar('b'))
+	assert.Assert(t, IsAlphaChar('C'))
+	assert.Assert(t, !IsAlphaChar('Ö'))
+	assert.Assert(t, !IsAlphaChar('_'))
+}
+
+func TestIsNumChar(t *testing.T) {
+	assert.Assert(t, IsNumChar('0'))
+	assert.Assert(t, IsNumChar('1'))
+	assert.Assert(t, IsNumChar('2'))
+	assert.Assert(t, IsNumChar('9'))
+	assert.Assert(t, !IsNumChar('/'))
+	assert.Assert(t, !IsNumChar('a'))
+}