Golang word to plural

In the field of programming, sometimes it is necessary to convert a word into its plural form. In golang, we can use some simple tricks to achieve this goal. In this article, we will introduce how to use golang to implement the function of converting words to plurals.

1. Basic rules

In golang, there are some basic rules that can help us convert words into plural forms. These rules mainly involve the following points:

• For words ending with a consonant letter, add the -es ending.

For example: the plural form of box is boxes.

• For words ending with the consonant letter y, change y to -i and add -es at the end.

For example: The plural form of baby is babies.

• For words ending with a vowel or -f or -fe, just add -s after it.

For example: the plural form of book is books.

2. Implementation code

Based on the above rules, we can write a simple golang program to realize the function of converting words into plurals. The following is the specific code of this program:

package main

import "fmt"

func pluralize(word string) string {
  lastLetter := word[len(word)-1:]
  beforeLastLetter := word[len(word)-2 : len(word)-1]
  switch lastLetter {
  case "y":
    if beforeLastLetter == "a" || beforeLastLetter == "e" || beforeLastLetter == "i" || beforeLastLetter == "o" || beforeLastLetter == "u" {
      return word + "s"
    } else {
      return word[:len(word)-1] + "ies"
    }
  case "x", "s", "z", "o":
    return word + "es"
  case "h":
    if beforeLastLetter == "s" || beforeLastLetter == "c" {
      return word + "es"
    } else {
      return word + "s"
    }
  case "f":
    if beforeLastLetter == "f" {
      return word[:len(word)-2] + "ves"
    } else {
      return word[:len(word)-1] + "ves"
    }
  default:
    return word + "s"
  }
}

func main() {
  fmt.Println(pluralize("box"))
  fmt.Println(pluralize("baby"))
  fmt.Println(pluralize("book"))
  fmt.Println(pluralize("tomato"))
  fmt.Println(pluralize("life"))
  fmt.Println(pluralize("wife"))
}

In the above code, we use a function pluralize() to realize the function of converting words to plural numbers. This function accepts a string type parameter word, which represents the word to be converted. Next, based on the above rules, we use a switch-case statement to determine the suffix of the word and return its corresponding plural form.

In order to determine the last two letters of the word, we use the len() function and the slicing operation. We convert the complete word string into a slice and use the len() function to get the length of the slice. Next, use the "[:len(word)-1]" syntax to get all characters except the last character. We can also use the "[:len(word)-2]" syntax to get the first and last characters except the last one. Characters other than two characters.

In the main() function, we used some words to test the pluralize() function and print out the results.

3. Conclusion

In this article, we introduced the rules for converting words into plurals in golang and wrote a simple program to implement this function. The program uses the techniques of slicing operations and switch-case statements, as well as the knowledge of suffix and suffix judgment and string concatenation. I hope that readers can better master the basic skills of golang programming through studying this article.

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