tsv2json

tsv2json.go

package main

import (
	"encoding/csv"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"strconv"
	"strings"
)

func main() {
	in := "a:b\tc:1\td:blablebli"
	numericFields := map[string]bool{
		"c": true,
	}
	r := csv.NewReader(strings.NewReader(in))
	r.Comma = '\t'
	for {
		fields, err := r.Read()
		if err == io.EOF {
			break
		}
		if err != nil {
			log.Fatal(err)
		}
		type jsonData map[string]interface{}
		data := jsonData{}
		for _, field := range fields {
			values := strings.SplitN(field, ":", 2)
			key := values[0]
			value := values[1]
			if numericFields[key] {
				intValue, err := strconv.Atoi(value)
				if err == nil {
					data[key] = intValue
				} else {
					data[key] = value
				}
			} else {
				data[key] = value
			}
		}
		j, err := json.Marshal(data)
		if err != nil {
			log.Fatal(err)
		}
		fmt.Println(string(j))
	}
}
// output: {"a":"b","c":1,"d":"blablebli"}