Regular Expression

In theoretical computer science and formal language theory, a regular expression (abbreviated regex or regexp) is a sequence of characters that forms a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. The concept arose in the 1950s, when the American mathematician Stephen Kleene formalized the description of a regular language, and came into common use with the Unix text processing utilities ed, an editor, and grep (global regular expression print), a filter.Each character in a regular expression is either understood to be a metacharacter with its special meaning, or a regular character with its literal meaning.
Posts about Regular Expression
  • Filtering Out Google Analytics Junk to Read Your Numbers Better

    … Organization.” Then enter the service provider of the bot using a regular expression. Keep an eye on your analytics, and be sure to create manual filters for additional bots that attempt to sneak past you. This can prevent bothersome bots and spiders from skewing your website’s data. Enforcing Lowercase If visitors enter an URL into their browser…

    @ProBloggerin Google- 11 readers -
  • How to Be Awesome At AdWords Scripting

    … AdWords scripts provide many ways to take PPC accounts to the next level with a (reasonably) straightforward method of streamlining repetitive tasks. This frees up time and allows the creation of advanced automations that just wouldn’t be possible to implement manually. To unlock the full potential of automation, you need to build…

    Ian Harris/ Search Engine Journalin Paid Search How To's- 8 readers -
  • 8 Tools I Discovered At #Pubcon 2014

    … One of the things I love most about Pubcon Las Vegas is gathering information about new tools. From sponsors in the Expo area to speakers and following the Twitter stream every year I uncover a few gems. This year most of the tools I heard about were focused on Content Marketing and Keyword Research. Keyword Research Tools KeywordTool.io…

    Search Engine Journalin Social SEO Google Facebook Twitter YouTube- 3 readers -
  • How to Harness the Awesomeness of Google Tag Manager

    …. For the sake of this example, let’s go with Link Click Listener. Add a rule to govern this tag. In my example, I went with All Pages, but if this activity only happens on a subset of pages on your site, write a regular expression to account for those pages. Then hit save. Important point to remember for later: when this listener is triggered, GTM…

    Leslie To/ 3Q Digitalin Google How To's- 9 readers -
  • How Regular Expression Affects SEO

    … This is perhaps one of the things that an average SEO specialist overlooks. Regular Expression is an important part of technical SEO. In this entry, I’ll discuss the basics and uses of Regular Expression. Case Study As an SEO specialist, Regular Expression (or more commonly known as RegEx) is going to be mostly used for mathematically…

    SEO Hacker Blogin SEO How To's- 35 readers -