✨ initial commit

examples/01-basic/main.go

@@ -0,0 +1,173 @@
+package main
+
+import (
+	"fmt"
+	"github.com/landaiqing/freezelib"
+	"os"
+)
+
+func main() {
+	fmt.Println("🎯 Basic Usage Examples")
+	fmt.Println("=======================")
+
+	// Create output directory
+	os.MkdirAll("./output", 0755)
+
+	// Run basic examples
+	simpleExample()
+	helloWorldExample()
+	quickStartExample()
+	defaultConfigExample()
+
+	fmt.Println("\n✅ Basic examples completed!")
+	fmt.Println("📁 Check the 'output' directory for generated files.")
+}
+
+// Simple example - minimal code
+func simpleExample() {
+	fmt.Println("\n📝 Simple Example")
+	fmt.Println("------------------")
+
+	freeze := freezelib.New()
+
+	code := `fmt.Println("Hello, FreezeLib!")`
+
+	// Generate SVG
+	svgData, err := freeze.GenerateFromCode(code, "go")
+	if err != nil {
+		fmt.Printf("❌ Error: %v\n", err)
+		return
+	}
+
+	err = os.WriteFile("output/simple.svg", svgData, 0644)
+	if err != nil {
+		fmt.Printf("❌ Error saving file: %v\n", err)
+		return
+	}
+
+	fmt.Println("✅ Generated: output/simple.svg")
+}
+
+// Hello World example - classic first program
+func helloWorldExample() {
+	fmt.Println("\n👋 Hello World Example")
+	fmt.Println("-----------------------")
+
+	freeze := freezelib.New()
+
+	code := `package main
+
+import "fmt"
+
+func main() {
+    fmt.Println("Hello, World!")
+    fmt.Println("Welcome to FreezeLib!")
+    
+    // This is a comment
+    for i := 1; i <= 3; i++ {
+        fmt.Printf("Count: %d\n", i)
+    }
+}`
+
+	// Generate both SVG and PNG
+	svgData, err := freeze.GenerateFromCode(code, "go")
+	if err != nil {
+		fmt.Printf("❌ Error generating SVG: %v\n", err)
+		return
+	}
+
+	pngData, err := freeze.GeneratePNGFromCode(code, "go")
+	if err != nil {
+		fmt.Printf("❌ Error generating PNG: %v\n", err)
+		return
+	}
+
+	// Save files
+	os.WriteFile("output/hello_world.svg", svgData, 0644)
+	os.WriteFile("output/hello_world.png", pngData, 0644)
+
+	fmt.Println("✅ Generated: output/hello_world.svg")
+	fmt.Println("✅ Generated: output/hello_world.png")
+}
+
+// Quick start example - using QuickFreeze API
+func quickStartExample() {
+	fmt.Println("\n⚡ Quick Start Example")
+	fmt.Println("----------------------")
+
+	qf := freezelib.NewQuickFreeze()
+
+	code := `function greet(name) {
+    return "Hello, " + name + "!";
+}
+
+const message = greet("FreezeLib");
+console.log(message);
+
+// Arrow function example
+const multiply = (a, b) => a * b;
+console.log("5 * 3 =", multiply(5, 3));`
+
+	// Use QuickFreeze with basic styling
+	svgData, err := qf.WithTheme("github").
+		WithFont("JetBrains Mono", 14).
+		WithLineNumbers().
+		CodeToSVG(code)
+
+	if err != nil {
+		fmt.Printf("❌ Error: %v\n", err)
+		return
+	}
+
+	err = os.WriteFile("output/quick_start.svg", svgData, 0644)
+	if err != nil {
+		fmt.Printf("❌ Error saving file: %v\n", err)
+		return
+	}
+
+	fmt.Println("✅ Generated: output/quick_start.svg")
+}
+
+// Default configuration example
+func defaultConfigExample() {
+	fmt.Println("\n⚙️  Default Configuration Example")
+	fmt.Println("---------------------------------")
+
+	// Show what default configuration looks like
+	config := freezelib.DefaultConfig()
+	freeze := freezelib.NewWithConfig(config)
+
+	code := `# Python Example
+def fibonacci(n):
+    """Calculate fibonacci number recursively."""
+    if n <= 1:
+        return n
+    return fibonacci(n-1) + fibonacci(n-2)
+
+# Generate first 10 fibonacci numbers
+print("Fibonacci sequence:")
+for i in range(10):
+    print(f"F({i}) = {fibonacci(i)}")`
+
+	svgData, err := freeze.GenerateFromCode(code, "python")
+	if err != nil {
+		fmt.Printf("❌ Error: %v\n", err)
+		return
+	}
+
+	err = os.WriteFile("output/default_config.svg", svgData, 0644)
+	if err != nil {
+		fmt.Printf("❌ Error saving file: %v\n", err)
+		return
+	}
+
+	fmt.Println("✅ Generated: output/default_config.svg")
+
+	// Print configuration details
+	fmt.Println("\n📋 Default Configuration:")
+	fmt.Printf("   Theme: %s\n", config.Theme)
+	fmt.Printf("   Font: %s, %dpt\n", config.Font.Family, config.Font.Size)
+	fmt.Printf("   Background: %s\n", config.Background)
+	fmt.Printf("   Window: %t\n", config.Window)
+	fmt.Printf("   Line Numbers: %t\n", config.ShowLineNumbers)
+}