Go Systems Programming

Doing some file editing!

This section will present a Go program that converts tab characters to space characters in files and vice versa! This is the job that is usually done by a text editor, but it is good to know how to perform it on your own.

The code will be saved in tabSpace.go and will be presented in four parts.

Note that tabSpace.go reads text files line by line, but you can also develop a version that reads text file character by character.

In the current implementation, all the work is done with the help of regular expressions, pattern matching, and search and replace operations.

The first part is the expected preamble:

package main 
 
import ( 
   "bufio" 
   "fmt" 
   "io" 
   "os" 
   "path/filepath" 
   "strings" 
) 

The second part contains the following ...