Author: dwlamb

I am parsing xml data generated by backup software for SMS and phone logs.

Most of the data appears like this:

  <sms protocol="0" address="##########" date="1495903715000" body="Ok. See you then.;-)" subject="none" ... />

For most bodies of a text message, the data follows the same pattern above: Keyword body="<string>". If the message contains single- or double-quotes, things are more complex. The software will convert a single-quote to the entity ' If double-quotes " are used in the body of the text message, then the text-delimiter will change from single- ' to double-quotes ", like this:

... body='Member, this win-win is for you! We're awesome, 'cause you're awesome. Some company was just ranked "Highest in "Customer Service" and "Purchase Experience" Satisfaction Among Wireless Providers" by J.D. Power.' 

The php script written to parse the rows of data is:

function parse_rows($rows)
    for ($a=0; $a < count($rows); $a++) {
        preg_match_all("/[a-z_]+=[\"|'](?:[^\"]*)['|\"]/",$rows[$a], $matches);
        $data[$a] = $matches[0];
    }
    return $data;
}

The preg_match_all utilised is not working well for body data that is of the exception described. It is clipping at the first instance of a double-quotation mark in mid-stream. This is the breakdown of the regex "/[a-z_]+=[\"|'](?:[^\"]*)['|\"]/"

[a-z_]+= captures the key tags like 'protocol=', 'address=', 'date='
Intended [\"|'] captures the beginning of the data either single- ' or double-quotes "
Intended (?:[^\"]*) look-ahead, capturing everything that does not include a double-quote "
Intended pattern ends with ['|\"]

Can someone assist with the regex that will capture for these exceptional body= text streams?

Each value of $rows comes in like shown above:

  <sms protocol="0" address="##########" date="1495903715000" body="Ok. See you then.;-)" subject="none" ... />

The array $data is multi-dimensional. The above row would become:

$data
  ->[0]
    ->[0] = "protocol="0"" 
    ->[1] = "address="##########"" 
    ->[2] = "date="1495903715000""
    ->[3] = "body="Ok. See you then.;-)"" 
    ->[4] = "subject="none""
    .
    .
    ->[17] = "contact_name"

Variable $data is then parsed further later on.

Is there another method to convert a string like:

  <sms protocol="0" address="##########" date="1495903715000" body="Ok. See you then.;-)" subject="none" ... />

to an array like $data?

I am working on a project for drag and drop items in a shopping cart. For an item dropped into the cart, I am trying to implement jQuery $.ajax. The result back from the PHP is pre-pended with '`' and I can not figure out why.

This is the javascript:

$('#target').droppable({
    drop: function(event,ui) {
        var id      = $(ui.draggable).data('id');
        var aisle   = $(ui.draggable).data('aisle');
        $.ajax({
            url   : base_url+'/index.php/groceries/jquery_append_to_list',
            cache : false,
            type  : 'post',
            data  : {
                'id' : id,
                 'aisle' : aisle
            },
            success    : function(data) {
                $('#target').append('<p data-id="'+id+'" data-aisle="'+aisle+'" class="draggable">'+data.item+'</p>');
            }
        })
    }
});

This is the PHP script:

function jquery_append_to_list(){
    $id     = $this->input->post('id');
    $aisle  = $this->input->post('aisle');
    $arr    = array(
                    'r' => '1',
                   'id' => $id,
                'aisle' => $aisle,
                 'item' => 'Rye Bread');
    $data   = json_encode($arr);
    echo $data;
}

For the PHP, I am using Codeigniter as the framework. The PHP is very basic right now as I am debugging this problem so I am trying to return static response values.

The item showing up in the shopping cart is 'undefined' instead of 'Rye Bread' for the JSON array is coming into the browser as `{"r":"1","id":"7","aisle":"1","item":"Rye Bread"}.

I have stepped through the PHP with an IDE and $data is {"r":"1","id":"7","aisle":"1","item":"Rye Bread"}. Somewhere in jQuery's handling it is prepending '`' to the array.

I am using

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>

as the jQuery sources. These are the same sources I use for other projects and the returns on those .ajax calls don't come back with a '`'.

The encoding in the editors used is UTF-8. The same is declared in the metadata of the browser. Thinking it might be an encoding problem I have opened the files in different editors under Windows and Linux (Linux my main environment) and nothing has shown as unexpected to account where the '`' is coming from.

For the success part I have tried

success : function(data) {
    data = data.replace(/\`/,'');
    console.log(data);
    var item = data.item;
    console.log(item);
    $('#target').append('<p data-id="'+id+'" data-aisle="'+aisle+'" class="draggable">'+item+'</p>');
}

The array data is cleaned up and variable item still comes up as undefined.

Does anyone have an idea of what to do next?

The challenge I need to resolve is getting a sub-string from strings such as those below. Each line is of an array so I am iterating and working on one line at a time in a JavaScript loop. All of the strings have the names at the start of the line:

Joe Smith will run...
Jane Jones will follow...
Bridget Burns and Jack Jones will be away...
Jack Jones, Gracie Burns and George Burns have three days in...

The sub-string I need is the name(s) at the start of each string. My JavaScript is handling an example of the first or second line adequately by:

substr   = replace(/^(\w+ \w+ )(?:.*)/g,"$1").trim();

will output Joe Smith or Jane Jones respectively.

Is there a method to extract just the names, preferably as one variable?

I have some experience with regular expressions but not enough to reliably extract what I need from examples such as these.

I am a novice at JavaScript an jQuery. I am writing a project and trying to incorporate $(this) to read a data attribute. Once the data attribute is determined and assigned to a variable, I intend to use that to access other form elements.

Instead of reading the data attribute as intended, clicking the button is submitting the form.

This is a code sample:

<fieldset class="new_inputs" id="new_inputs1">
    <label for="file_input_1">Input File:1</label>
    <input class="fileRenamingFormInput" name="file_input_1" id="file_input_1" type="text" value="">
    <br>
    <select class="fileRenamingFormSelect" name="destinationFile_1 id="destinationfile_1">...</select>
    <input class="fileRenamingFormFileOut" name="file_out_1" id="file_out_1" type="text" value="">
    <br>
    <textarea class="copyCommandBlock" name="copyCommandBlock1" id="copyCommandBlock1"></textarea>
    <button type="submit" class="btnGenerate" id="btnGenerate1" data-idx="1">Generate command</button>  <- Button Javascript might act on
    <button type="submit" class="btnCopy" id="btnCopy1" data-idx="1">Copy</button>
</fieldset>

<fieldset class="new_inputs" id="new_inputs2">
    <label for="file_input_2">Input File:2</label>
    <input class="fileRenamingFormInput" name="file_input_2" id="file_input_2" type="text" value="">
    <br>
    <select class="fileRenamingFormSelect" name="destinationFile_2 id="destinationfile_2">...</select>
    <input class="fileRenamingFormFileOut" name="file_out_2" id="file_out_2" type="text" value="">
    <br>
    <textarea class="copyCommandBlock" name="copyCommandBlock2" id="copyCommandBlock2"></textarea>
    <button type="submit" class="btnGenerate" id="btnGenerate2" data-idx="2">Generate command</button> <- Button Javascript might act on
    <button type="submit" class="btnCopy" id="btnCopy2" data-idx="2">Copy</button>
</fieldset>

This is the JavaScript

$("button.btnGenerate").click(function(e){
    e.preventDefault();
    var idx = $(this).data("idx");
    console.log(idx);
});

The logic I am seeking to employ is:

• When "button.btnGenerate" is clicked, don't submit the form
• assign data-idx to variable idx

• once I have variable idx, I can more efficiently use it plus text strings to get form values from sibling or other form elements. For example, if var idx = 2;

  var fnIn = document.getElementById(fileinput'+'idx').value
  var fnOut = document.getElementById(fileout'+'idx').value
  var str = 'cp '+fnIn+' '+fnOut;
  document.getElementById('copyCommandBlock'+idx).value = str;

With the page loaded in the browser there could be multiple fieldsets. They are created dynamically based on the user clicking a button to add another set of fields. I am using $("button.btnGenerate") as the listening event for it is generic.

Is that selector still too generic since it is a class?

Thanks for taking the time to read this. Hope someone can help