multiline_json_parser.go

package main

import (

	"bufio"
	"bytes"
	"strings"
)
/* Parses a multi-line input to a JSON string

	input:

	key1: value1 \n
	key2: value2 \n

	output:

	{ "key" : "value",
	  "key" : "value"
	}



*/

func parse_multi_line(multiLineInput string)(string, error){

	var result bytes.Buffer

	// strip whitespace first
	multiLineInput = strings.TrimSpace(multiLineInput)

	// get the total amount of lines
	totalLines := strings.Count(multiLineInput,"\n")

	// assign a reader
	reader := bufio.NewReader(strings.NewReader(multiLineInput))

	// start constructing the JSON string
	result.WriteString("{")

	for lineCount := 0; lineCount <= totalLines; lineCount++ {

		line, err := (reader.ReadString('\n'))
		if err != nil {
			break
		} 	else {
			kvPair := strings.Split(line, ": ")

			result.WriteString("\"" + kvPair[0] + "\" : \"" + strings.Trim(kvPair[1],"\n") + "\",")
		}
	}

	// loose the last "," and close with a "}"
	result.Truncate(int(len(result.String())-1))
	result.WriteString("}")
	return result.String(), nil
}