Init.

main.go

@@ -0,0 +1,38 @@
+package main
+
+import(
+	"fmt"
+	"os"
+	"github.com/k1574/utf8tmpl/tmpl"
+)
+
+func main() {
+	var(
+		utilName string
+		args []string
+	)
+	
+
+	utilsMap := map[string]  interface{}  {
+		"tmpl" : tmpl.Run,
+	}
+
+	if len(os.Args)<2  {
+		for k, _ := range utilsMap {
+			fmt.Printf("%s\n", k)
+		}
+		os.Exit(0)
+	} else {
+		utilName = os.Args[1]
+		args = os.Args[1:]
+	}
+
+	if _, ok := utilsMap[utilName] ; !ok {
+		fmt.Printf("%s: %s: no such util\n", os.Args[0], utilName )
+		os.Exit(1)
+	}
+
+	status := utilsMap[utilName].(func([]string) int )(args)
+
+	os.Exit(status)
+}

readme

@@ -0,0 +1,4 @@
+# utf8tmpl
+
+## Description
+Set of utils to implement templates based on UTF-8 characters.

tmpl/tmpl.go

@@ -0,0 +1,62 @@
+package tmpl
+
+import (
+	"os"
+	"fmt"
+	"bufio"
+	"io"
+)
+
+var(
+	arg0 string
+	delim rune
+	status int
+)
+
+
+func
+usage() {
+	fmt.Fprintf(os.Stderr, "usage: %s [n_utf8_chars] [n_strings]\n", arg0)
+	os.Exit(1)
+}
+
+func
+Run(args []string) int {
+	status = 0
+	delim = '\n'
+	arg0 = args[0]
+
+	if len(args[1]) != len(args)-2 {
+		usage()
+	}
+
+	chrs := []rune(args[1])
+	args = args[2:]
+
+	tmpl := make(map[rune] string)
+	for i, s := range args {
+		tmpl[rune(chrs[i])] = s
+	}
+
+	r := bufio.NewReader(os.Stdin)
+	for{
+		s, e := r.ReadString(byte(delim))
+		if e==io.EOF {
+			break
+		}
+		s = s[:len(s)-1]
+		for _, c := range []rune(s) {
+			s, ok := tmpl[c]
+			if !ok {
+				fmt.Fprintf(os.Stderr, "%s: '%s': no such character in template string\n",
+					arg0, string(c) )
+				continue
+			}
+			fmt.Printf("%s", s)
+		}
+		fmt.Printf("%s", string(delim))
+	}
+
+
+	return status
+}