added -a/--all, default to top entry

main.go

@@ -2,10 +2,10 @@ package main
 
 import (
 	"encoding/json"
+	"flag"
 	"fmt"
 	"go/doc"
 	"log"
-	"math"
 	"net/http"
 	"os"
 	"sort"
@@ -15,6 +15,13 @@ import (
 const url = "http://api.urbandictionary.com/v0/define?term="
 const usage = "ud: confirm that the term you're thinking of has already been added to urban dictionary\n\nusage: ud <term>\n"
 
+var all bool
+
+func init() {
+	flag.BoolVar(&all, "all", false, "more than one")
+	flag.BoolVar(&all, "a", false, "more than one")
+}
+
 type response struct {
 	Results []result `json:"list"`
 }
@@ -43,13 +50,13 @@ func (bv ByVotes) Less(i, j int) bool {
 }
 
 func main() {
-	if len(os.Args) < 2 {
+	flag.Parse()
+	if len(flag.Args()) < 1 {
 		fmt.Fprintf(os.Stderr, "%s\n", usage)
 		os.Exit(1)
 	}
 
-	words := os.Args[1:]
-	u := fmt.Sprintf("%s%s", url, strings.Join(words, "+"))
+	u := fmt.Sprintf("%s%s", url, strings.Join(flag.Args(), "+"))
 
 	resp, err := http.Get(u)
 	if err != nil {
@@ -64,18 +71,29 @@ func main() {
 
 	sort.Sort(ByVotes(data.Results))
 
+	if !all {
+		if len(data.Results) > 0 {
+			data.Results = data.Results[:1]
+		}
+	}
+
 	for i, res := range data.Results {
+		if i > 0 {
+			fmt.Printf("\n\n")
+		}
+		if all {
+			fmt.Printf(
+				"Definition %d:\n",
+				i+1,
+			)
+		}
+		doc.ToText(os.Stdout, res.Definition, "", "", 80)
 		fmt.Printf(
-			"%d:\n",
-			i,
-		)
-		doc.ToText(os.Stdout, res.Definition, "\t", "", 80)
-		fmt.Printf(
-			"\n\n\texample:\n\t%s\n",
-			strings.Replace(res.Example, "\r\n", "\n\t", -1),
+			"\n\n  Example:\n  %s\n",
+			strings.Replace(res.Example, "\r\n", "\n  ", -1),
 		)
 		fmt.Printf(
-			"\n\t%s\n\t^ %d, v %d\n\t%s\n",
+			"\nSource: %s\nUp: %d, Down: %d\nAuthor: %s\n",
 			res.Link,
 			res.Up,
 			res.Down,