ECMA 6 - Test Enhanced RegEX

[emravera]

Generate a test suite:

// Enhanced usage of RegEx
let parser = (input, match) => {
    for (let pos = 0, lastPos = input.length; pos < lastPos; ) {
        for (let i = 0; i < match.length; i++) {
            match[i].pattern.lastIndex = pos
            let found
            if ((found = match[i].pattern.exec(input)) !== null) {
                match[i].action(found)
                pos = match[i].pattern.lastIndex
                break
            }
        }
    }
}

let report = (match) => {
    console.log(JSON.stringify(match))
}
parser("Foo 1 Bar 7 Baz 42", [
    { pattern: /Foo\s+(\d+)/y, action: (match) => report(match) },
    { pattern: /Bar\s+(\d+)/y, action: (match) => report(match) },
    { pattern: /Baz\s+(\d+)/y, action: (match) => report(match) },
    { pattern: /\s*/y,         action: (match) => {}            }
])

More info: http://es6-features.org/#RegularExpressionStickyMatching