raster example command

.gitignore

@@ -1 +1,2 @@
-epos-server/epos-server
+/cmd/epos-server/epos-server
+/cmd/epos-server/epos-server.exe

README.md

@@ -1,9 +1,8 @@
 # About escpos #
 
-This is a simple [Golang](http://www.golang.org/project) package that provides
-[ESC-POS](https://en.wikipedia.org/wiki/ESC/P) library functions to help with
-sending control codes to a ESC-POS capable printer such as an Epson TM-T82 or
-similar.
+This is a simple [Go][1] package that provides [ESC-POS][2] library functions
+to help with sending control codes to a ESC-POS capable printer such as an
+Epson TM-T82 or similar.
 
 These printers are often used in retail environments in conjunction with a
 point-of-sale (POS) system.
@@ -12,14 +11,13 @@ point-of-sale (POS) system.
 
 Install the package via the following:
 
-    go get -u github.com/knq/escpos
+    go get -u github.com/kenshaw/escpos
 
 ## Example epos-server ##
 
-An example EPOS server implementation is available in the
-[epos-server](epos-server) subdirectory of this project. This example
-server is more or less compatible with [Epson TM-Intelligent](https://c4b.epson-biz.com)
-printers and print server implementations.
+An example EPOS server implementation is available in the [cmd/epos-server][3]
+subdirectory of this project. This example server is more or less compatible
+with [Epson TM-Intelligent][4] printers and print server implementations.
 
 ## Usage ##
 
@@ -32,7 +30,7 @@ import (
     "bufio"
     "os"
 
-    "github.com/knq/escpos"
+    "github.com/kenshaw/escpos"
 )
 
 func main() {
@@ -86,5 +84,8 @@ func main() {
 
 ## TODO
 - Fix barcode/image support
-- Update code to be idiomatic Go
-- Fix example server implementation
+
+[1]: http://www.golang.org/project
+[2]: https://en.wikipedia.org/wiki/ESC/P
+[3]: cmd/epos-server
+[4]: https://c4b.epson-biz.com

epos-server/README.md → cmd/epos-server/README.md

@@ -1,10 +1,9 @@
 # About epos-server #
 
-This is a quick and dirty Golang implementation of a [Epson TM-Intelligent](https://c4b.epson-biz.com/) 
-print server. This also serves as example code for the
-[escpos](https://github.com/knq/escpos) package. This is "more-or-less"
-compatible with the ePOS-Print API and shows how ePOS-XML is translated into
-simple ESCPOS data.
+This is a quick and dirty Golang implementation of a [Epson TM-Intelligent][1]
+print server. This also serves as example code for the [escpos][2] package.
+This is "more-or-less" compatible with the ePOS-Print API and shows how
+ePOS-XML is translated into simple ESCPOS data.
 
 This has been tested and works as expected on Linux.
 
@@ -20,12 +19,11 @@ like the following for your system:
 
 Then install via the following:
 
-    go get -u github.com/knq/escpos/epos-server
-
+    go get -u github.com/kenshaw/escpos/epos-server
 
 You should then be able to build the epos-server like this:
 
-    go build github.com/knq/escpos/epos-server
+    go build github.com/kenshaw/escpos/epos-server
 
 ## Usage ##
 
@@ -46,3 +44,6 @@ printer:
 The following still needs to be implemented:
 
 * Fix image decoding and printing
+
+[1]: https://c4b.epson-biz.com/
+[2]: https://github.com/kenshaw/escpos

cmd/epos-server/main.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"net/http"
+	"os"
+
+	"github.com/kenshaw/escpos"
+)
+
+var (
+	flagListen   = flag.String("l", "127.0.22.8:80", "listen")
+	flagEndpoint = flag.String("endpoint", escpos.DefaultEndpoint, "endpoint")
+	flagPrinter  = flag.String("p", "", "path to printer")
+)
+
+func main() {
+	flag.Parse()
+
+	if *flagPrinter == "" {
+		log.Fatal("must specify path to printer via -p")
+	}
+
+	// open printer
+	f, err := os.Create(*flagPrinter)
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+
+	// create printer
+	ep, err := escpos.NewPrinter(f)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// create server
+	s, err := escpos.NewServer(ep)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// set up mux
+	mux := http.NewServeMux()
+	mux.Handle(*flagEndpoint, s)
+	mux.HandleFunc("/", func(res http.ResponseWriter, req *http.Request) {
+		http.Error(res, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+	})
+
+	log.Fatal(http.ListenAndServe(*flagListen, mux))
+}