CODEWITHSUNDEEP
javascriptregexsplit
DCD
DCD

Reputation: 335

.split() maintaining splitting character

I need to split a string like this

var val = "$cs+55+mod($a)";

into an array

arr = val.split( /[+-/*()\s*]/ );

The problem is to keep the splitter character as an array element like

arr = [ '$cs', '+', '55', 'mod', '(', '$a', ')' ]

and not like

arr = [ '$cs', '55', 'mod', '$a' ]

Upvotes: 1

Views: 175

Answers (2)

DCD
DCD

Reputation: 335

1st thank you all for the help.

My problem is solved but not finished.

Here is a more detailed usage

jsfiddler

$(function() {
var tags = [
    '$c[8][clientes][clientes_iva]',
    '$c[8][paises_iva][paises_iva]',
    '$c[8]',
    'mod(',
    '$user'
];

function split( val ) {
    var arr = val.split( /([+-\/*()\s*]|[^+-\/*()\s*]+)/g );
    return arr;
}

function extractLast( term ) {
    return split( term ).pop();
}

$( "#condition" )
    .bind("keydown", function( event ) {
        if ( event.keyCode === $.ui.keyCode.TAB && $( this ).autocomplete( "instance" ).menu.active ) {
            event.preventDefault();
        }
    })
    .autocomplete({
        minLength: 0,
        source: function( request, response ) {
            response( $.ui.autocomplete.filter( tags, extractLast( request.term ) ) );
        },
        focus: function() {
            return false;
        },
        select: function( event, ui ) {
            var terms = split(this.value);
            terms.pop();
            terms.push( ui.item.value );
            this.value = terms.join( "" );
            return false;
        }
    });

});

I made a Video where you all can see what I'm doing.

Upvotes: 0

Mr_Green
Mr_Green

Reputation: 41832

You should use match instead of split.

"$cs+55+mod($a)".match(/([+-/*()\s*]|[^+-/*()\s*]+)/g);

Explanation:

[+-/*()\s*]    -- Your provided regex
[^+-/*()\s*]+  -- Negation of the above regex using ^ and mentioning that could be more than one letter by using +

Upvotes: 4

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