initial implementation

3 files changed, 63 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index 66fd13c..4e4c367 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,5 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+osc52
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..2dd9101
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/theimpostor/osc52
+
+go 1.17
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..938fb84
--- /dev/null
+++ b/main.go
@@ -0,0 +1,58 @@
+package main
+
+import (
+	"encoding/base64"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+)
+
+func encode(fname string, encoder io.WriteCloser) {
+	var f *os.File
+	var err error
+
+	if fname == "-" {
+		f = os.Stdin
+	} else {
+		if f, err = os.Open(fname); err != nil {
+			log.Fatalf("Failed to open file %v: %v", fname, err)
+		} else {
+			defer f.Close()
+		}
+	}
+
+	if _, err = io.Copy(encoder, f); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func main() {
+	var fnames []string
+
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s [file1 [...fileN]]\n", os.Args[0])
+		fmt.Fprintf(flag.CommandLine.Output(), "Copies input to system clipboard using an OSC52 escape sequence.\n")
+		fmt.Fprintf(flag.CommandLine.Output(), "Multiple files will be concatenated.\n")
+		fmt.Fprintf(flag.CommandLine.Output(), "With no file arguments, will read from stdin\n")
+	}
+
+	flag.Parse()
+	if len(flag.Args()) > 0 {
+		fnames = flag.Args()
+	} else {
+		fnames = []string{"-"}
+	}
+
+	// Start OSC52
+	fmt.Print("\033]52;c;")
+	b64 := base64.NewEncoder(base64.StdEncoding, os.Stdout)
+	for _, fname := range fnames {
+		encode(fname, b64)
+	}
+	b64.Close()
+
+	// End OSC52
+	fmt.Print("\a")
+}