Golang: acronym of given sentence

Question

How to find, given a sentence, the acronym of that sentence using GO programming language. For example, “Hello, world!” becomes “HW”. So far I have tried splitting the sentence:

package main

import (
    "bufio"
    "fmt"
    "strings"
    "os"
)
func main() {
    reader := bufio.NewReader(os.Stdin)
    fmt.Print("Enter text: ")
    text, _ := reader.ReadString('\n')
    fmt.Print(strings.Split(text," "))
    fmt.Print(strings.Index(text, ))
}

Took input from the user
Split on the occurrence of white space.
What next?

Any help is appreciated.

Thanks

Stephan Dollberg · Accepted Answer · 2015-06-27T08:31:14.583

5

After you have split the strings you need to append the first letter of each word to your result string.

text := "Hello World"
words := strings.Split(text, " ")

res := ""

for _, word := range words {
    res = res + string([]rune(word)[0])
}

fmt.Println(res)

Note that you might need to add some checks to catch the case if the input is empty which results in a [""] from strings.Split.

edited Jun 27 '15 at 08:31

answered Jun 27 '15 at 08:19

Stephan Dollberg

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But I could not understand the logic.. the meaning the this particular code string([]rune(word)[0]) – RISHI KHANNA Jun 27 '15 at 08:31
@RISHIKHANNA Which specific part do you not understand? – Stephan Dollberg Jun 27 '15 at 08:37
string([]rune(word)[0]) – RISHI KHANNA Jun 27 '15 at 08:46
@RISHIKHANNA I see, it's the way how to access individual characters of a string in Go. For more information check [this](http://stackoverflow.com/q/15018545/893693) question and the links it leads to. – Stephan Dollberg Jun 27 '15 at 08:47
You actually don't need to convert to an array or runes before converting to a string – openwonk Jun 27 '15 at 18:42
@openwonk Did you check the comment to your answer? – Stephan Dollberg Jun 27 '15 at 18:44
That's fair. I don't often have to think of acronyms in non-ASCII terms... See updated answer and comments in code. I'd still recommend applying `strings.Title("...")` to ensure capitalization. – openwonk Jun 28 '15 at 00:51

openwonk · Answer 2 · 2015-06-28T00:49:02.887

0

Agree with first answer, but slightly different implementation; be sure to import "strings" at beginning of your code:

text := "holur stál fyrirtæki" // fake manufacturer, "hollow steel company"
words := strings.Split(text, " ")

res := ""

for _, word := range words {
    // Convert to []rune before string to preserve UTF8 encoding
    // Use "Title" from "strings" package to ensure capitalization of acronym
    res += strings.Title(string([]rune(word)[0]))
}

fmt.Println(res) // => "HSF"

edited Jun 28 '15 at 00:49

answered Jun 27 '15 at 15:42

openwonk

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1

The problem is by using `string(word[0])` you dropped support for utf-8. That's why the other response is using `[]rune(word)[0]`. Compare with greek perspective http://play.golang.org/p/bkk_XkhtJr – tomasz Jun 27 '15 at 17:14
That's fair. I don't often have to think of acronyms in non-ASCII terms... See updated answer and comments in code. I'd still recommend applying `strings.Title("...")` to ensure capitalization. – openwonk Jun 28 '15 at 00:51

Golang: acronym of given sentence

2 Answers2