Golang : Individual and total number of words counter example



Tags : golang word-counter strip-delimiter find-total-words

Problem:

You need to count the unique instances of words and the total number of words in a given string. For counting each unique occurrences of a word, you prefer to strip the word of any delimiter such as exclamation or question marks and return the result as a map.

Solution:

This code example below is self-explanatory. Happy coding!

 package main

 import (
 "fmt"
 "strings"
 )

 const delim = "?!.;,*"

 func isDelim(c string) bool {
 if strings.Contains(delim, c) {
 return true
 }
 return false
 }

 func cleanDelimiter(input string) string {

 size := len(input)
 temp := ""
 var prevChar string

 for i := 0; i < size; i++ {
 str := string(input[i]) // convert to string for easier operation
 if (str == " " && prevChar != " ") || !isDelim(str) {
 temp += str
 prevChar = str
 } else if prevChar != " " && isDelim(str) {
 temp += ""
 }
 }
 return temp
 }

 func SingleWordCount(s string, uniqueSensitive bool) map[string]int {
 strSlice := strings.Fields(cleanDelimiter(s))
 result := make(map[string]int)

 if uniqueSensitive {

 for _, str := range strSlice {
 result[str]++
 }

 } else {

 for _, str := range strSlice {
 result[strings.ToLower(str)]++
 }

 }

 return result
 }

 func TotalWordCount(s string) int {
 strSlice := strings.Fields(cleanDelimiter(s))
 return len(strSlice)
 }

 func main() {
 str := "Hello fri3nd, you're looking good today!"
 fmt.Println("======================================================")
 fmt.Println(str)
 fmt.Println("Count by individual word : ", SingleWordCount(str, true))
 fmt.Println("Total words : ", TotalWordCount(str))

 str = "Hello hello HELLo hellO"
 fmt.Println("======================================================")
 fmt.Println(str)
 fmt.Println("Count by individual word : ", SingleWordCount(str, true))
 fmt.Println("Total words : ", TotalWordCount(str))

 // TREAT lower and upper case as the same
 str = "Hello? hello!! HELLo?? hellO!"
 fmt.Println("======================================================")
 fmt.Println(str)
 fmt.Println("Count by individual word : ", SingleWordCount(str, false)) // set to false
 fmt.Println("Total words : ", TotalWordCount(str))

 }

Output:

======================================================

Hello fri3nd, you're looking good today!

Count by individual word : map[today:1 Hello:1 fri3nd:1 you're:1 looking:1 good:1]

Total words : 6

======================================================

Hello hello HELLo hellO

Count by individual word : map[Hello:1 hello:1 HELLo:1 hellO:1]

Total words : 4

======================================================

Hello hello HELLo hellO

Count by individual word : map[hello:4]

Total words : 4

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  See also : Golang : Count number of runes in string



Tags : golang word-counter strip-delimiter find-total-words

By Adam Ng

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