From f1b5b9da5ae2a81eb7b4be95a2faca07beacfd78 Mon Sep 17 00:00:00 2001
From: Silvan Jegen <s.jegen@gmail.com>
Date: Fri, 21 Aug 2015 19:56:35 +0200
Subject: Initial commit

---
 gwic.go | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 gwic.go

diff --git a/gwic.go b/gwic.go
new file mode 100644
index 0000000..07f9d1a
--- /dev/null
+++ b/gwic.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"regexp"
+	"strings"
+	"text/tabwriter"
+)
+
+type queue []string
+
+func (q *queue) insert(s string) {
+}
+
+func printWithContext(all []string, ind, ctxlen int) {
+	var slice []string
+	slice = append(slice, "\""+all[ind]+"\"")
+
+	if len(all[:ind]) < ctxlen {
+		slice = append(all[:ind-1], slice...)
+	} else {
+		slice = append(all[ind-ctxlen:ind-1], slice...)
+	}
+
+	if len(all[ind:]) < ctxlen {
+		slice = append(slice, all[ind+1:]...)
+	} else {
+		slice = append(slice, all[ind+1:ind+ctxlen]...)
+	}
+
+	//for _, w := range slice {
+	//fmt.Printf("%q ", w)
+	//}
+	fstr := strings.Join(slice, "\t")
+	fmt.Fprintf(tw, "%s\n", fstr)
+}
+
+var tw *tabwriter.Writer
+
+func main() {
+	flag.Parse()
+	kw := flag.Arg(0)
+	if len(kw) == 0 {
+		fmt.Printf("Need string to search for. Exiting...\n")
+		os.Exit(1)
+	}
+	tw = tabwriter.NewWriter(os.Stdout, 1, 2, 1, ' ', 0)
+
+	reader := bufio.NewReader(os.Stdin)
+	all, err := ioutil.ReadAll(reader)
+	if err != nil {
+		fmt.Printf("Could not read everything because there was an error: %q. Exiting\n", err)
+		os.Exit(1)
+	}
+
+	splitreg := regexp.MustCompile("[ \t\n]")
+	splline := splitreg.Split(string(all), -1)
+	for i, w := range splline {
+		index := strings.Index(w, kw)
+		if index < 0 {
+			continue
+		}
+		printWithContext(splline, i, 5)
+	}
+	tw.Flush()
+}
-- 
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