hasItem

function hasItem(event, player, item)
{
    // This function is intended to replace the inventoryItemCount method in searching for a specific named item (Note: unlike inventoryItemCount it only returns true or false)
    itemString = item.getItemNbt().toJsonString()
    playerName = player.getDisplayName()
    var result = 0

    if(itemString.indexOf('Name:') > -1){itemName = 'Name:"' + item.getDisplayName() + '"'}
    else{itemName = ""}

    // Find the lore section in the JSON string
    index = itemString.indexOf('"Lore":')
    var str = ""
    if(index > -1)
    {
        for(i = index + 8; i < itemString.length - 1; i++) // Starting just after Lore, grab every character for processing
        {
            if(itemString[i] != "\n" && itemString[i] != " ") // New lines and a binch of spaces are included that break the search and need to be filtered out
            {
                if(itemString[i] == '"') // If a quotation is found stop ignoring spaces
                {
                    do
                    {
                        str = str + itemString[i]
                        i++
                    }
                    while(itemString[i] != '"') // After we reach the end of the string for the line of lore go back to normal
                    str = str + itemString[i] // If we don't grab this now it will be lost and screw up the formatting
                }
                else // Commas are rather important to grab too
                {
                    str = str + itemString[i]
                }
            }
            if(itemString[i] == "]"){i = itemString.length} // People seem to get upset when I use a break, so I'm going out of my way to upset everyone here
        }
        if(itemName == "") // Check if the item name is different
        {
            str = 'Lore:' + str
        }
        else
        {
            str = ',Lore:' + str
        }
    }
    // Command block output will be "Found playerX" or "playerX did not match the required data structure"
    if(itemName != "" || str != "")
    {
    output = event.API.executeCommand(event.player.world, 'testfor '+ playerName + ' {Inventory:[{id:"' + item.getName() + '",tag:{display:{' + itemName + str + '}}}]}')
    }
    else
    {
        output = event.API.executeCommand(event.player.world, 'testfor '+ playerName + ' {Inventory:[{id:"' + item.getName() + '"}]}')
    }
    if(output.indexOf("Found " + playerName) > -1){result = 1}
    return result