Question

How do I construct a regular expression to search a larger string for a substring that looks like:

"x bed" OR "x or y bed"

In both cases I will need access to both variables x and y, which are both integers.

Any help appreciated….

Answer 1

With JavaScript –

var subject = "1 bed,2 or 3 bed"
var myregexp = /(\d+) bed|(\d+) or (\d+) bed/img;
var match = myregexp.exec(subject);
while (match != null) {
    if (match[1]) {
         alert("Found 'x bed', x is '" + match[1] + "'");    
    }
    else {
        alert("Found 'x or y bed', x is '" + match[2] + "', y is '" + match[3] + "'");   
    }    

    match = myregexp.exec(subject);
}

Demo – http://jsfiddle.net/ipr101/WGUEH/