From 7eac3c24255a86257d42ab38668cbd88dc96f55b Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Sun, 10 Sep 2023 19:47:52 +0200
Subject: Add the ‘-x’ command-line option
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---
 go.mod  |  2 ++
 go.sum  |  2 ++
 gsp.1   | 11 ++++++++++-
 main.go | 14 ++++++++++++--
 4 files changed, 26 insertions(+), 3 deletions(-)
 create mode 100644 go.sum

diff --git a/go.mod b/go.mod
index 5a7aafb..fe1bcba 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module git.thomasvoss.com/gsp
 
 go 1.21.0
+
+require git.thomasvoss.com/getgopt v1.0.1
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..9bd5a3b
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+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/gsp.1 b/gsp.1
index 761dd51..82bb9f4 100644
--- a/gsp.1
+++ b/gsp.1
@@ -6,6 +6,7 @@
 .Nd better syntax for HTML and XML
 .Sh SYNOPSIS
 .Nm
+.Op Fl x
 .Op Ar
 .Sh DESCRIPTION
 .Nm
@@ -23,9 +24,17 @@ form of
 .Ql <tag>
 as opposed to XML where they take the form of
 .Ql <tag/> .
-If the document begins with an XML document type, then
+If the document begins with an XML document type or the
+.Fl x
+flag is specified, then
 .Nm
 will transpile to XML.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl x
+Transpile to XML instead of HTML.
+.El
 .Sh EXIT STATUS
 .Ex -std gsp
 .Sh EXAMPLES
diff --git a/main.go b/main.go
index 8351b78..c805fec 100644
--- a/main.go
+++ b/main.go
@@ -4,16 +4,26 @@ import (
 	"fmt"
 	"os"
 
+	"git.thomasvoss.com/getgopt"
 	"git.thomasvoss.com/gsp/formatter"
 	"git.thomasvoss.com/gsp/parser"
 )
 
 func main() {
-	if len(os.Args) == 1 {
+	for opt := byte(0); getgopt.Getopt(len(os.Args), os.Args, "x", &opt); {
+		switch opt {
+		case 'x':
+			parser.Xml = true
+		}
+	}
+
+	os.Args = os.Args[getgopt.Optind:]
+
+	if len(os.Args) == 0 {
 		process("-")
 	}
 
-	for _, arg := range os.Args[1:] {
+	for _, arg := range os.Args {
 		process(arg)
 	}
 }
-- 
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