Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and explanations of their meanings.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Go to the nmap directory that was just created by Subversion."

A block of code is set as follows:

Driver = {
  new = function(self, host, port, options)
    local o = {}
    setmetatable(o, self)
    self.__index = self
    o.options = options
    return o
  end

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

static const luaL_Reg libs[] = { {NSE_PCRELIBNAME, ...

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