Base64 String Regex

Matches Base64 encoded strings.

パターン

/\b[A-Za-z0-9+/]{4}(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?\b/g

テスト例

Encoded: SGVsbG8gV29ybGQ= and data: dGVzdA==

コード例

javascript

const regex = /\b[A-Za-z0-9+/]{4}(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?\b/g;
const result = str.match(regex);

python

import re
pattern = re.compile(r'\b[A-Za-z0-9+/]{4}(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?\b')
result = pattern.findall(text)

go

import "regexp"
re := regexp.MustCompile(`\b[A-Za-z0-9+/]{4}(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?\b`)
result := re.FindAllString(text, -1)

base64encodingdata