ltsv

LTSV (Labeled Tab-separated Values) reader/writer for Go language.

About LTSV: http://ltsv.org/

Labeled Tab-separated Values (LTSV) format is a variant of Tab-separated Values (TSV).Each record in a LTSV file is represented as a single line. Each field is separated by TAB and has a label and a value. The label and the value have been separated by ':'. With the LTSV format, you can parse each line by spliting with TAB (like original TSV format) easily, and extend any fields with unique labels in no particular order.

Example

Reader

package main

import (
  "bytes"
  "fmt"
  "github.com/najeira/ltsv"
)

func main() {
  data := `
time:05/Feb/2013:15:34:47 +0000 host:192.168.50.1 req:GET / HTTP/1.1  status:200
time:05/Feb/2013:15:35:15 +0000 host:192.168.50.1 req:GET /foo HTTP/1.1   status:200
time:05/Feb/2013:15:35:54 +0000 host:192.168.50.1 req:GET /bar HTTP/1.1   status:404
`
  b := bytes.NewBufferString(data)

  // Read LTSV file into map[string]string
  reader := ltsv.NewReader(b)
  records, err := reader.ReadAll()
  if err != nil {
      panic(err)
  }

  // dump
  for i, record := range records {
      fmt.Printf("===== Data %d\n", i)
      for k, v := range record {
          fmt.Printf("\t%s --> %s\n", k, v)
      }
  }
}

Writer

package main

import (
  "fmt"
  "bytes"
  "github.com/najeira/ltsv"
)

func main() {
  data := []map[string]string {
      {"time": "05/Feb/2013:15:34:47 +0000", "host": "192.168.50.1", "req": "GET / HTTP/1.1", "status": "200"},
      {"time": "05/Feb/2013:15:35:15 +0000", "host": "192.168.50.1", "req": "GET /foo HTTP/1.1", "status": "200"},
      {"time": "05/Feb/2013:15:35:54 +0000", "host": "192.168.50.1", "req": "GET /bar HTTP/1.1", "status": "404"},
  }

  b := &bytes.Buffer{}
  writer := ltsv.NewWriter(b)
  err := writer.WriteAll(data)
  if err != nil {
      panic(err)
  }
  fmt.Printf("%v", b.String())
}

License

New BSD License.

Links

• http://ltsv.org/
• https://github.com/ymotongpoo/goltsv LTSV package by ymotongpoo