From 679f7a8c5e98b2312876d3a36a82dae2480aa386 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Thu, 18 Apr 2024 10:44:58 +0200
Subject: Switch to opts for option parsing

---
 go.mod  |  6 +++++-
 go.sum  |  2 ++
 main.go | 24 ++++++++++++++----------
 3 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/go.mod b/go.mod
index fe1bcba..3c46fcc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,9 @@
 module git.thomasvoss.com/gsp
 
-go 1.21.0
+go 1.21.4
+
+toolchain go1.22.2
 
 require git.thomasvoss.com/getgopt v1.0.1
+
+require git.sr.ht/~mango/opts/v2 v2.0.0 // indirect
diff --git a/go.sum b/go.sum
index 9bd5a3b..cb3a312 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,4 @@
+git.sr.ht/~mango/opts/v2 v2.0.0 h1:Xgf9veVQTgdd7Sgp8hmEz61//XUbFeyfTu/9V98vuBE=
+git.sr.ht/~mango/opts/v2 v2.0.0/go.mod h1:cWMagyMJYfu1Un3MXOlIsUJJNbJRFZkTx+2oGAp0gDk=
 git.thomasvoss.com/getgopt v1.0.1 h1:i2eyNe0K0MEEwsVpCFVVNKqV//WpEv54wWPyY6yKU7s=
 git.thomasvoss.com/getgopt v1.0.1/go.mod h1:xGRkf4eAWU0vXcnddTN5d6MB5dbca8+G1qM2PWSmZbg=
diff --git a/main.go b/main.go
index 96dd479..e84538c 100644
--- a/main.go
+++ b/main.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"os"
 
-	"git.thomasvoss.com/getgopt"
+	"git.sr.ht/~mango/opts/v2"
 	"git.thomasvoss.com/gsp/formatter"
 	"git.thomasvoss.com/gsp/parser"
 )
@@ -12,23 +12,27 @@ import (
 var dflag bool
 
 func main() {
-	for opt := byte(0); getgopt.Getopt(len(os.Args), os.Args, "d", &opt); {
-		switch opt {
+	flags, rest, err := opts.GetLong(os.Args, []opts.LongOpt{
+		{Short: 'd', Long: "no-doctype", Arg: opts.None},
+	})
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%s: %s\n", os.Args[0], err)
+		fmt.Fprintf(os.Stderr, "Usage: %s [-d] [file ...]\n", os.Args[0])
+		os.Exit(1)
+	}
+
+	for _, f := range flags {
+		switch f.Key {
 		case 'd':
 			dflag = true
-		default:
-			fmt.Fprintf(os.Stderr, "Usage: %s [-d] [file ...]\n", os.Args[0])
-			os.Exit(1)
 		}
 	}
 
-	args := os.Args[getgopt.Optind:]
-
-	if len(args) == 0 {
+	if len(rest) == 0 {
 		process("-")
 	}
 
-	for _, a := range args {
+	for _, a := range rest {
 		process(a)
 	}
 }
-- 
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