Question

How to match a substring within 2 square brackets using RegEx in Go

Answer 1

package main

import (
    "fmt"
    "regexp"
)

func extractBracketedContent(text string) []string {
    pattern := regexp.MustCompile(`\[(.*?)\]`)
    matches := pattern.FindAllStringSubmatch(text, -1)

    var results []string
    for _, match := range matches {
        if len(match) > 1 {
            results = append(results, match[1]) // Captured group inside brackets
        }
    }
    
    return results
}

func main() {
    input := "This is a [sample] string with [multiple] square brackets."
    extracted := extractBracketedContent(input)

    for _, item := range extracted {
        fmt.Println(item)
    }
}



/*
run:

sample
multiple

*/

 

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