From 3c5ecdf9cf34fd730705abcffa7186c969fa1021 Mon Sep 17 00:00:00 2001
From: qeesung <1245712564@qq.com>
Date: Sat, 20 Oct 2018 22:33:23 +0800
Subject: [PATCH] Parse the cli args

---
 image2ascii.go | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 image2ascii.go

diff --git a/image2ascii.go b/image2ascii.go
new file mode 100644
index 0000000..e3ddf51
--- /dev/null
+++ b/image2ascii.go
@@ -0,0 +1,50 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"github.com/qeesung/image2ascii/convert"
+	_ "image/jpeg"
+	_ "image/png"
+	"os"
+)
+
+var imageFilename string
+var ratio float64
+var expectedWidth int
+var expectedHeight int
+var fitScreen bool
+
+func init() {
+	flag.StringVar(&imageFilename, "f", "", "Image filename to be convert")
+	flag.Float64Var(&ratio, "r", 1, "Ratio to scale the image, ignored when use -w or -g")
+	flag.IntVar(&expectedWidth, "w", -1, "Expected image width, -1 for image default width")
+	flag.IntVar(&expectedHeight, "g", -1, "Expected image height, -1 for image default height")
+	flag.BoolVar(&fitScreen, "s", true, "Fit the terminal screen, ignored when use -w, -g, -r")
+	flag.Usage = usage
+}
+
+func main() {
+	flag.Parse()
+
+	// config  the options
+	convertOptions := &convert.Options{
+		Ratio:          ratio,
+		ExpectedHeight: expectedHeight,
+		ExpectedWidth:  expectedWidth,
+		FitScreen:      fitScreen,
+	}
+	fmt.Print(convert.ImageFile2ASCIIString(imageFilename, convertOptions))
+}
+
+func usage() {
+	fmt.Fprintf(os.Stderr, `image2ascii version: image2ascii/1.0.0 
+>> HomePage: https://github.com/qeesung/image2ascii
+>> Issue   : https://github.com/qeesung/image2ascii/issues
+>> Author  : qeesung
+Usage: image2ascii [-s] -f <filename> -r <ratio> -w <width> -g <height>
+
+Options:
+`)
+	flag.PrintDefaults()
+}
-- 
2.45.2