Golang : Convert spaces to tabs and back to spaces example
A simple example on how to convert spaces to tabs and convert back the tabs to spaces again in a given text string. Useful in a situation where you want to pre-parse a raw data file first before feeding to another parser for further processing.
Here you go!
package main
import (
"fmt"
"strings"
"unicode"
)
func TabToSpace(input string) string {
var result []string
for _, i := range input {
switch {
// all these considered as space, including tab \t
// '\t', '\n', '\v', '\f', '\r',' ', 0x85, 0xA0
case unicode.IsSpace(i):
result = append(result, " ") // replace tab with space
case !unicode.IsSpace(i):
result = append(result, string(i))
}
}
return strings.Join(result, "")
}
func spaceToTab(input string) string {
var result []string
for _, i := range input {
switch {
case unicode.IsSpace(i):
result = append(result, "\t")
case !unicode.IsSpace(i):
result = append(result, string(i))
}
}
return strings.Join(result, "")
}
func main() {
// text := "This is a line with a lot of spaces in between"
text := "жѳМѭњЂЯёЧВ 一二三 handle alphabets = ขอพฮศโำฐเฦ abc世界你好123 ペツワケザユプルヂザ"
fmt.Println("Before: ", text)
output := spaceToTab(text)
fmt.Println("After: ", output)
fmt.Println("Back:", TabToSpace(output))
}
Output:
Before: жѳМѭњЂЯёЧВ 一二三 handle alphabets = ขอพฮศโำฐเฦ abc世界你好123 ペツワケザユプルヂザ
After: жѳМѭњЂЯёЧВ 一二三 handle alphabets = ขอพฮศโำฐเฦ abc世界你好123 ペツワケザユプルヂザ
Back: жѳМѭњЂЯёЧВ 一二三 handle alphabets = ขอพฮศโำฐเฦ abc世界你好123 ペツワケザユプルヂザ
References:
https://golang.org/src/unicode/graphic.go?s=3997:4022#L116
https://www.socketloop.com/tutorials/golang-read-tab-delimited-file-with-encoding-csv-package
See also : Golang : Read tab delimited file with encoding/csv package
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+7.6k Gogland : Where to put source code files in package directory for rookie
+6k Golang : Measure execution time for a function
+21.9k Fix "Failed to start php5-fpm.service: Unit php5-fpm.service is masked."
+13.9k Golang : concatenate(combine) strings
+37.1k Golang : Converting a negative number to positive number
+8.7k Android Studio : Image button and button example
+6.2k WARNING: UNPROTECTED PRIVATE KEY FILE! error message
+7.6k Golang : get the current working directory of a running program
+18.5k Golang : Send email with attachment
+27.8k Golang : Decode/unmarshal unknown JSON data type with map[string]interface
+26.7k Golang : Convert file content into array of bytes
+5.5k PHP : Convert string to timestamp or datestamp before storing to database(MariaDB/MySQL)