How do I search a string for keywords found in multi-dimensional array?

So I have some data that looks like this:

stringToSearch = 'this string needs to be searched';

labels = ['keys 1-3','keys 4-6','keys 7-9'];

keywords =
    ['key1', 'key2', 'key3'],
    ['key4', 'key5', 'key6'],
    ['key7', 'key8', 'key9']
];

EDIT: Basically what I'm trying to 开发者_如何学运维achieve is, searching the string for any of the keys. Then finding the all of the labels that correspond with the groups that the keys are in.

EDIT: The goal is to pass in the string and get back the labels.

string='this contains key5 and key9';

So it returns, labels 'key 4-6' and 'keys 7-9'

Try this:

stringsToSearch = ['this string needs to be searched', '...']

keywords = {
    firstGroup: {
        key1: [],
        key2: [],
        key3: []
    },
    secondGroup: {
        key4: [],
        key5: [],
        key6: []
    },
    thirdGroup: {
        key7: [],
        key8: [],
        key9: []
    }
}

$.each(keywords, function(groupName, keyGroup) {
    $.each(keyGroup, function(key, foundStrings) {
        $.each(stringsToSearch, function() {
            if(this.search(key) >= 0)
                foundStrings.push(this);
        });
    });
});

Here's another solution, based off your most recent edit:

stringToSearch = 'this string needs to be searched';

labelsToApply = {
    myFirstLabel: ['key1', 'key2', 'key3'],
    anotherLabel: ['key4', 'key5', 'key6'],
    lastLabel:    ['key7', 'key8', 'key9', 'key10', 'key11'],
}

function getLabels(str, labels) {
    var appliedLabels = [];
    $.each(labels, function(labelName, keywords) {
        $.each(keywords, function() {
             if(str.search(this) >= 0) {
                 appliedLabels.push(labelName);
                 return false;
             }
        });  
    });
    return appliedLabels;
}

alert(getLabels(stringToSearch, labelsToApply));

In plain old Javascript I would use something like this:

var stringToSearch = 'this string needs to be key2 searched key4';

var Keywords = function(keywords, label) {
    this.keywords = keywords;
    this.label = label;
}

var keywords1 = new Keywords(['key1', 'key2', 'key3'], 'keys 1-3');
var keywords2 = new Keywords(['key4', 'key5', 'key6'], 'keys 4-6');

var keywordsArray = [ keywords1, keywords2 ];

for (var i=0; i <keywordsArray.length; i++) {
    var keywordsEntry = keywordsArray[i];
    for(var j=0; j <keywordsEntry.keywords.length; j++) {
        // here you got the index of the occuring keyword
        if(stringToSearch.indexOf(keywordsEntry.keywords[j]) > 0) {
            // now do sth. with the label
            alert(keywordsEntry.label);
        }
    }
}

(Definitely not very well coded, but this is meant to give you a start.)

Or possibly this, since it's unclear what you want:

stringsToSearch = ['this string needs to be searched', '...']

keywords = {
    label1: {
        keys: ['key1', 'key2', 'key3'],
        matches: []
    },
    label2: {
        keys: ['key4', 'key5', 'key6'],
        matches: []
    },
    label3: {
        keys: ['key7', 'key8', 'key9', 'key10', 'key11'],
        matches: []
    }
}

$.each(keywords, function(labelName, label) {
    $.each(stringsToSearch, function(_, stringToSearch) {
        $.each(label.keys, function(_, key) {
            if(stringToSearch.search(key) >= 0) {
                label.matches.push(stringToSearch);
                return false;
            }
        });
    });
});