YAML Key-Value Regex Pattern
Matches simple YAML key-value pairs. Useful for quick parsing of configuration files.
Live Regex Tester
Pattern Breakdown
Code Examples
JavaScript
const regex = /^([\w.-]+):\s+(.+)$/gm; const test = "name: John Doe"; console.log(regex.test(test)); // true // Extract matches const matches = test.match(regex); console.log(matches);
Python
import re pattern = r'^([\w.-]+):\s+(.+)$' test = "name: John Doe" match = re.findall(pattern, test) print(match) # Found!
Go
package main
import (
"fmt"
"regexp"
)
func main() {
re := regexp.MustCompile(`^([\w.-]+):\s+(.+)$`)
fmt.Println(re.MatchString("name: John Doe")) // true
}Common Use Cases
Match Examples
| Input | Result |
|---|---|
| name: John Doe | Match |
| - list item | No Match |
About the YAML Key-Value Regex
Matches simple YAML key-value pairs. Useful for quick parsing of configuration files.
Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The yaml key-value pattern is classified as <strong>beginner</strong> difficulty in the <strong>data formats</strong> category. It works in all major programming languages.
When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.
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Frequently Asked Questions
What is the YAML Key-Value regex pattern?
Matches simple YAML key-value pairs. Useful for quick parsing of configuration files.
How do I use the YAML Key-Value regex?
Use the pattern /^([\w.-]+):\s+(.+)$/gm in your code. In JavaScript: new RegExp('^([\w.-]+):\s+(.+)$', 'gm'). Test it above with your own input.
What does this YAML Key-Value regex match?
This pattern matches: "name: John Doe". It does NOT match: "- list item". Configuration parsing, Docker Compose, Kubernetes manifests.
Is the YAML Key-Value regex beginner-friendly?
This pattern is rated Beginner. It uses basic regex syntax and is easy to understand.
What languages support the YAML Key-Value regex?
This pattern works in all major programming languages including JavaScript, Python, Java, C#, Go, Ruby, PHP, and more. Syntax may vary slightly between regex engines.
Can I modify the YAML Key-Value regex for my use case?
Yes! Use the interactive tester above to modify the pattern and test with your own data. Common modifications include making it case-insensitive (add 'i' flag), matching globally (add 'g' flag), or adjusting character classes.
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