const regex = /^\s*([^#][\w\d_-]+?)\[]\s*=\s*(\d+[\.,]\d+)\s*$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^\\s*([^#][\\w\\d_-]+?)\\[]\\s*=\\s*(\\d+[\\.,]\\d+)\\s*$', 'gm')
const str = `; This is a sample configuration file
; Comments start with ';', as in php.ini
[first_section]
one = 1
one = 3
one-two = 4
one_three = 3
five = 5.2
animal = BIRD
[first_section]
second_section[one] = "1 associated"
second_section[two] = "2 associated"
second_section[] = "1 unassociated"
second_section[] = "2 unassociated"
second_section[] = 1
second_section[] = 1,3
second_section[] = 2,2
[second_section]
path = "/usr/local/bin"
URL = "http://www.example.com/~username"
second_section[one] = "1 associated"
second_section[two] = "2 associated"
second_section[three] = 3
second_section[four] = 4.4
second_section[] = "1 unassociated"
second_section[] = "2 unassociated"
second_section[] = 1
second_section[] = 2.2
[third_section]
phpversion[] = "5.0"
phpversion[] = "5.1"
phpversion[] = "5.2"
phpversion[] = "5.3"`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions