Divide the table row and store each cell using regular expressions

Here is the original source text:

gi0/1 1G-Fiber -- -- -- -- Down -- -- Access
gi0/2 1G-Fiber -- -- -- -- Down -- -- 
gi0/3 1G-Fiber -- -- -- -- Down -- -- 
gi0/4 1G-Fiber -- -- -- -- Down -- -- 
gi0/5 1G-Fiber -- -- -- -- Down -- -- 

gi0/0/1 1G-Fiber -- -- -- -- Down -- -- Access
gi0/0/2 1G-Fiber -- -- -- -- Down -- -- 
gi0/0/3 1G-Fiber -- -- -- -- Down -- -- 
gi0/0/4 1G-Fiber -- -- -- -- Down -- -- 
gi0/0/5 1G-Fiber -- -- -- -- Down -- --

The code snippet I am working on is as follows:

var re = /(([\w]{2})[\/\d]{1,})\s+([\w\-\.\s]+){1,}[\r\n]/ig;
while ( (MyArray = re.exec(text)) != null ){

// Here I intend to obtain an array with the following values (MyArray)

[0] [matched string]
[1] gi0/1 (gi0/0/1)
[2] gi
[3] 1G-Fiber
[4] -- 
[5] --
[6] --
[7] --
[8] Down
[9] --
[10] --
[11] Access (only for the 1st and 6th row)

// However, the current output in (MyArray) is not correct

[0] [matched string]
[1] gi0/1 (gi0/0/1)
[2] gi
[3] "s" OR "empty"
}

You can view an online example at

I would appreciate any assistance with this. Thank you!

javascriptregex

Answer №1

    <script type="text/javascript">
        var subject = "gi0/1 1G-Fiber -- -- -- -- Down -- -- Access";
        //var subject = "gi0/1 1G-Fiber -- -- -- -- Down -- --";
        var regex = /([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s([^\s]*)\s*([^\s]*)/;
        var result = regex.exec(subject);
        document.write("<ul>");
        for (var i = 1; i < result.length; i++) {
            document.write("<li>'<i>" + result[i] + "<\/i>'<\/li>");
        }
        document.write("<\/ul>");
    </script>

If the original string does not contain the word "Access" at the end, this regular expression will still produce an array with a blank final element. Another approach could involve using the String.search method and looping through each character of the source string.

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