Add Greensnow example for fetching and parsing IP blocklist data

examples/greensnow.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+
+	"git.kor-elf.net/kor-elf-shield/blocklist"
+	"git.kor-elf.net/kor-elf-shield/blocklist/parser"
+)
+
+/**
+ * An example of how to get a list of IP addresses from a service https://greensnow.co/
+ */
+
+func main() {
+	url := "https://blocklist.greensnow.co/greensnow.txt"
+	extract := parser.NewDefaultTextExtract(0, " ")
+	pars, err := parser.NewText(extract)
+	if err != nil {
+		panic(err)
+	}
+	// limit 0 - no limit
+	limit := uint(0)
+	config := blocklist.NewConfig(limit)
+	ips, err := blocklist.Get(url, pars, config)
+	if err != nil {
+		panic(err)
+	}
+	fmt.Println(ips)
+}