Added Windows support

src/dll/Library.go

@@ -0,0 +1,6 @@
+package dll
+
+type Library struct {
+	Name      string
+	Functions []string
+}

src/dll/List.go

@@ -0,0 +1,55 @@
+package dll
+
+import "slices"
+
+// List is a slice of DLLs.
+type List []Library
+
+// Append adds a function for the given DLL if it doesn't exist yet.
+func (list List) Append(dllName string, funcName string) List {
+	for i, dll := range list {
+		if dll.Name != dllName {
+			continue
+		}
+
+		if slices.Contains(dll.Functions, funcName) {
+			return list
+		}
+
+		list[i].Functions = append(list[i].Functions, funcName)
+		return list
+	}
+
+	return append(list, Library{Name: dllName, Functions: []string{funcName}})
+}
+
+// Contains returns true if the library exists.
+func (list List) Contains(dllName string) bool {
+	for _, dll := range list {
+		if dll.Name == dllName {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Index returns the position of the given function name.
+func (list List) Index(dllName string, funcName string) int {
+	index := 0
+
+	for _, dll := range list {
+		if dll.Name != dllName {
+			index += len(dll.Functions) + 1
+			continue
+		}
+
+		for i, fn := range dll.Functions {
+			if fn == funcName {
+				return index + i
+			}
+		}
+	}
+
+	return -1
+}

src/dll/List_test.go

@@ -0,0 +1,34 @@
+package dll_test
+
+import (
+	"testing"
+
+	"git.urbach.dev/cli/q/src/dll"
+	"git.urbach.dev/go/assert"
+)
+
+func TestList(t *testing.T) {
+	libs := dll.List{}
+	assert.False(t, libs.Contains("kernel32"))
+	assert.Equal(t, -1, libs.Index("kernel32", "ExitProcess"))
+
+	libs = libs.Append("kernel32", "ExitProcess")
+	assert.True(t, libs.Contains("kernel32"))
+	assert.Equal(t, 0, libs.Index("kernel32", "ExitProcess"))
+
+	libs = libs.Append("user32", "MessageBox")
+	assert.True(t, libs.Contains("kernel32"))
+	assert.True(t, libs.Contains("user32"))
+	assert.Equal(t, 0, libs.Index("kernel32", "ExitProcess"))
+	assert.Equal(t, 2, libs.Index("user32", "MessageBox"))
+
+	libs = libs.Append("kernel32", "SetConsoleCP")
+	assert.Equal(t, 0, libs.Index("kernel32", "ExitProcess"))
+	assert.Equal(t, 1, libs.Index("kernel32", "SetConsoleCP"))
+	assert.Equal(t, 3, libs.Index("user32", "MessageBox"))
+
+	libs = libs.Append("kernel32", "ExitProcess")
+	assert.Equal(t, 0, libs.Index("kernel32", "ExitProcess"))
+	assert.Equal(t, 1, libs.Index("kernel32", "SetConsoleCP"))
+	assert.Equal(t, 3, libs.Index("user32", "MessageBox"))
+}