const regex = /((?i)DATE\s*(?i)AUTHOR\s*(?i)DESCRIPTION\s*)()/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('((?i)DATE\\s*(?i)AUTHOR\\s*(?i)DESCRIPTION\\s*)()', 'gm')
const str = `/***********************************************************************************************
PROCEDURE: DEL_ABCD_Table1
PARAMETERS: Sample int
APPLICATION: ABCD
PURPOSE: Deletes all records from the Table1
NOTES:
MODIFIED
DATE AUTHOR DESCRIPTION
---------- -------------- -------------------------------------------------------------
08/08/2012 Jim Initial Version
09/25/2014 Pam Adding Canvas
09/11/2018 Dwight Adding rootbeer
12/24/2019 Angela Adding Catnip
**********************************************************************************************/ `;
// 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