dequoter/textfilters.go

package main

import (
	"bufio"
	"bytes"
	"encoding/json"
	"strconv"
	"strings"
)

type TextFilter func(input string) (output string, err error)

var TextFilters = map[string]TextFilter{
	"upper-case": func(input string) (output string, err error) {
		return strings.ToUpper(input), nil
	},
	"lower-case": func(input string) (output string, err error) {
		return strings.ToLower(input), nil
	},
	"unquote": func(input string) (output string, err error) {
		return strconv.Unquote(input)
	},
	"format-json": func(input string) (output string, err error) {
		var dst bytes.Buffer

		scnr := bufio.NewScanner(strings.NewReader(input))
		for scnr.Scan() {
			line := scnr.Text()
			if err := json.Indent(&dst, []byte(line), "", "  "); err == nil {
				dst.WriteString("\n")
			} else {
				return "", err
			}
		}

		return dst.String(), nil
	},
	"lorem-ipsum": func(input string) (output string, err error) {
		return "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor " +
			"incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud " +
			"exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure " +
			"dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. " +
			"Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt " +
			"mollit anim id est laborum.", nil
	},
}