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Theory Of Computation 61 -- Examples of Regular expressions
Theory Of Computation 61 -- Examples of Regular expressions -
REGEX Tutorial Regular Expressions
REGEX Tutorial Regular ExpressionsREGEX Tutorial Regular Expressions
Best Regular Expressions Book : http://goo.gl/RFX7eJ Here I explain how Regular Expressions are used. I cover all of the codes and what they are used for. Th... -
What are Regular Expressions and Languages?
What are Regular Expressions and Languages?What are Regular Expressions and Languages?
What are Regular Expressions and Languages? A very simple explanation of what Regular Expressions are. Explains how to construct regular expressions for a given language and vice versa. Learn the basics of Regular Expressions and their usage. More Videos in this series : Deterministic Finite Automata: https://www.youtube.com/watch?v=eOfMcdeyrMU Non-deterministic FInite Automata: https://www.youtube.com/watch?v=uDA4JuQocnM Converting NFA to DFA: https://www.youtube.com/watch?v=IE4LcyIfGOk Follow us on Twitter : @theunacademy Like us on Facebook : https://www.facebook.com/unacademy Subscribe to the channel and support us make learning -
1 - Convert Regular Expression to Finite-State Automaton
1 - Convert Regular Expression to Finite-State Automaton1 - Convert Regular Expression to Finite-State Automaton
This video shows you how to convert a simple regular expression to a finite-state automaton (FSA). Finite-state automatons are also called finite-state machi... -
2 - Convert Regular Expression to Finite-State Automaton
2 - Convert Regular Expression to Finite-State Automaton2 - Convert Regular Expression to Finite-State Automaton
The second in a series of videos about the relationship between regular expressions and finite-state automatons (or finite-state machines). This video goes o... -
Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions
Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular ExpressionsBest of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions
From Fluent 2012: Quick, what does this do: /(\/\*?\\/)|\/\/.*?(\r?\n|$)/g? If you're like many developers, you just averted your eyes, and your heart is now... -
Regular Expressions - Episode 1 - Introduction
Regular Expressions - Episode 1 - IntroductionRegular Expressions - Episode 1 - Introduction
Welcome to the Software Carpentry lecture on regular expressions. In order to understand what regular expressions are for, let's have a look at the sort of c... -
Let's Learn Python #23 - Regular Expressions
Let's Learn Python #23 - Regular ExpressionsLet's Learn Python #23 - Regular Expressions
This week, I cover Regular Expressions in Python! Please leave me a comment or question below! Like and Subscribe to show your support! :D ======================================== LINK-A-SAURUS!! Editor = SUBLIME TEXT 2: http://www.sublimetext.com/2 RE Documentation: Python 2.7.x: http://docs.python.org/2/library/re.html Python 3.3.x: http://docs.python.org/3.3/library/re.html ========================================= http://www.facebook.com/TPayneExperience http://www.twitter.com/TPayneXperience http://www.instagram.com/TPayneExperience Music by Juto: Link Coming Soon! ========================================= --- SUPER TUTORIA -
Using regular expressions in JavaScript
Using regular expressions in JavaScriptUsing regular expressions in JavaScript
Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/using-regular-expressions-in-javascript.html What is a Regular Expression A regular expression is a sequence of characters that forms a search pattern. Let us understand the use of regular expressions with an example. The following strings contain words and numbers. From the string we want to extract all the numbers. Bsically the program should work with any string. Mark-9 Tim-890 Sam-10 Sara-9902 Result : 9, 890, 10, 990 -
Automata Theory - Lecture 5 - 1 - Regular Expressions
Automata Theory - Lecture 5 - 1 - Regular ExpressionsAutomata Theory - Lecture 5 - 1 - Regular Expressions
-
Regular Expression to NFA
Regular Expression to NFARegular Expression to NFA
Humans can convert a regular expression to a DFA fairly easily using just a few heuristic rules. But a computer needs an algorithm. There are two steps: 1. C... -
QTP Part 25 Regular Expression
QTP Part 25 Regular ExpressionQTP Part 25 Regular Expression
Using Regular Expressions, changing window titles. -
Regex Howto : Dominate Your Code with Regular Expressions
Regex Howto : Dominate Your Code with Regular ExpressionsRegex Howto : Dominate Your Code with Regular Expressions
Regular Expressions rock. They are an ultra-powerful search pattern language that almost anyone can learn, whether you are into programming or not. || Add me... -
Google Python Class Day 2 Part 1
Google Python Class Day 2 Part 1Google Python Class Day 2 Part 1
Google Python Class Day 2 Part 1: Regular Expressions. By Nick Parlante. Support materials and exercises: http://code.google.com/edu/languages/google-python-class
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21:45
Theory Of Computation 61 -- Examples of Regular expressions
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published: 28 Jun 2014
Theory Of Computation 61 -- Examples of Regular expressions
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Theory Of Computation 61 -- Examples of Regular expressions
- published: 28 Jun 2014
- views: 725
- author: Gate Lectures by Ravindrababu Ravula
Description.
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11:54
REGEX Tutorial Regular Expressions
Best Regular Expressions Book : http://goo.gl/RFX7eJ Here I explain how Regular Expression...
published: 17 Sep 2010
author: Derek Banas
REGEX Tutorial Regular Expressions
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REGEX Tutorial Regular Expressions
- published: 17 Sep 2010
- views: 92106
- author: Derek Banas
Best Regular Expressions Book : http://goo.gl/RFX7eJ Here I explain how Regular Expressions are used. I cover all of the codes and what they are used for. Th...
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6:15
What are Regular Expressions and Languages?
What are Regular Expressions and Languages?
A very simple explanation of what Regular Exp...
published: 27 May 2014
What are Regular Expressions and Languages?
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What are Regular Expressions and Languages?
- published: 27 May 2014
- views: 121
What are Regular Expressions and Languages? A very simple explanation of what Regular Expressions are. Explains how to construct regular expressions for a given language and vice versa. Learn the basics of Regular Expressions and their usage. More Videos in this series : Deterministic Finite Automata: https://www.youtube.com/watch?v=eOfMcdeyrMU Non-deterministic FInite Automata: https://www.youtube.com/watch?v=uDA4JuQocnM Converting NFA to DFA: https://www.youtube.com/watch?v=IE4LcyIfGOk Follow us on Twitter : @theunacademy Like us on Facebook : https://www.facebook.com/unacademy Subscribe to the channel and support us make learning easier.
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6:47
1 - Convert Regular Expression to Finite-State Automaton
This video shows you how to convert a simple regular expression to a finite-state automato...
published: 09 May 2011
author: Barry Brown
1 - Convert Regular Expression to Finite-State Automaton
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1 - Convert Regular Expression to Finite-State Automaton
- published: 09 May 2011
- views: 40845
- author: Barry Brown
This video shows you how to convert a simple regular expression to a finite-state automaton (FSA). Finite-state automatons are also called finite-state machi...
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8:47
2 - Convert Regular Expression to Finite-State Automaton
The second in a series of videos about the relationship between regular expressions and fi...
published: 09 May 2011
author: Barry Brown
2 - Convert Regular Expression to Finite-State Automaton
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2 - Convert Regular Expression to Finite-State Automaton
- published: 09 May 2011
- views: 22643
- author: Barry Brown
The second in a series of videos about the relationship between regular expressions and finite-state automatons (or finite-state machines). This video goes o...
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48:19
Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions
From Fluent 2012: Quick, what does this do: /(\/\*?\\/)|\/\/.*?(\r?\n|$)/g? If you're like...
published: 08 Apr 2013
author: O\'Reilly
Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions
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Best of Fluent 2012: /Reg(exp){2}lained/: Demystifying Regular Expressions
- published: 08 Apr 2013
- views: 55589
- author: O\'Reilly
From Fluent 2012: Quick, what does this do: /(\/\*?\\/)|\/\/.*?(\r?\n|$)/g? If you're like many developers, you just averted your eyes, and your heart is now...
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10:55
Regular Expressions - Episode 1 - Introduction
Welcome to the Software Carpentry lecture on regular expressions. In order to understand w...
published: 09 Jun 2011
author: softwarecarpentry
Regular Expressions - Episode 1 - Introduction
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Regular Expressions - Episode 1 - Introduction
- published: 09 Jun 2011
- views: 12326
- author: softwarecarpentry
Welcome to the Software Carpentry lecture on regular expressions. In order to understand what regular expressions are for, let's have a look at the sort of c...
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21:34
Let's Learn Python #23 - Regular Expressions
This week, I cover Regular Expressions in Python!
Please leave me a comment or question b...
published: 15 Feb 2014
Let's Learn Python #23 - Regular Expressions
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Let's Learn Python #23 - Regular Expressions
- published: 15 Feb 2014
- views: 13903
This week, I cover Regular Expressions in Python! Please leave me a comment or question below! Like and Subscribe to show your support! :D ======================================== LINK-A-SAURUS!! Editor = SUBLIME TEXT 2: http://www.sublimetext.com/2 RE Documentation: Python 2.7.x: http://docs.python.org/2/library/re.html Python 3.3.x: http://docs.python.org/3.3/library/re.html ========================================= http://www.facebook.com/TPayneExperience http://www.twitter.com/TPayneXperience http://www.instagram.com/TPayneExperience Music by Juto: Link Coming Soon! ========================================= --- SUPER TUTORIAL LIST!!! --- LLP #25 - UI with PyQt & OpenGL - http://youtu.be/eJveTXSXs8Q LLP #24 - UI with Python, PyQt & Qt Designer - http://youtu.be/GLqrzLIIW2E LLP #23 - Regular Expressions - http://youtu.be/ZdDOauFIDkw LLP #22 - Multithreading - http://youtu.be/i1SW4q9yUEs LLP #21 - Min Max Algorithm - http://youtu.be/fInYh90YMJU LLP #20 - A* Algorithm - http://youtu.be/ob4faIum4kQ LLP #19 - Finite-State Machines (FSM) - http://youtu.be/E45v2dD3IQU LLP #18 - Factory and @classmethod - http://youtu.be/flOXIdWUpmU LLP #17 - Type Class Creation, Metaclass - http://youtu.be/pd4Lm_WLJpM LLP #16 - Singletons - http://youtu.be/6IV_FYx6MQA LLP #15 - Nesting Functions and Decorators - http://youtu.be/fVon4QaY4wo LLP #14 - *Args, **Kwargs - http://youtu.be/WWm5DxTzLuk LLP #13 - UML - Unified Modeling Language - http://youtu.be/U3B5z2HQlaQ LLP #12 - Abstract Classes, Multiple Inheritance - OOP 3 of 3 - http://youtu.be/rOaRMW8jYOo LLP #11 - Overriding & File Mng. - OOP 2 of 3 - http://youtu.be/TF_y8Gta0vY LLP #10 - Inheritance - OOP 1 of 3 - http://youtu.be/pxbdnrjf-Uc LLP #9 - Creating Text Files - http://youtu.be/DRZdfd5_rdg LLP #8 of 8 - Classes - http://youtu.be/trOZBgZ8F_c LLP #7 of 8 - Files and User Input - http://youtu.be/0ury8KHQdL4 LLP #6 of 8 - Functions - http://youtu.be/qO4ZN5uZSVg LLP #5 - Exception Handling - http://youtu.be/hrR0WrQMhSs LLP #4 - Loops - http://youtu.be/6HWK6O4-28E LLP #3 - Conditionals, If, Else, Elif - http://youtu.be/mQrci1kAwh4 LLP #2 - Strings, Lists, Tuples and Dictionaries - http://youtu.be/19EfbO5D_8s LLP #1 - Integers, Floats and Maths - http://youtu.be/D48iCw3WWpI PLAYLISTS BASICS - https://www.youtube.com/playlist?list=PL82YdDfxhWsDJTq5f0Ae7M7yGcA26wevJ OBJECT ORIENTED PROGRAMMING - https://www.youtube.com/playlist?list=PL82YdDfxhWsAyY3iNNDC1kUKWAJibUGi6 SCRIPTING PLAYLIST - https://www.youtube.com/playlist?list=PL82YdDfxhWsC-3kdTKK2_mwbNdBfVvb_M =========================================
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9:05
Using regular expressions in JavaScript
Link for all dot net and sql server video tutorial playlists
http://www.youtube.com/user/k...
published: 24 Jan 2015
Using regular expressions in JavaScript
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Using regular expressions in JavaScript
- published: 24 Jan 2015
- views: 114
Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/using-regular-expressions-in-javascript.html What is a Regular Expression A regular expression is a sequence of characters that forms a search pattern. Let us understand the use of regular expressions with an example. The following strings contain words and numbers. From the string we want to extract all the numbers. Bsically the program should work with any string. Mark-9 Tim-890 Sam-10 Sara-9902 Result : 9, 890, 10, 9902 908ABC12XYZ34 Result : 908, 12, 34 $1 $2 $901 ABC(100) Result : 1, 2, 901, 100 Here is what we want the page to do 1. User enters the string in the first textbox 2. When "Process String" button is clicked, the numbers should be extracted from the string and displayed in the text area element. It will be very complex and error prone if we have to achieve this without using regular expressions. [input type="text" id="txtBox" style="width:250px" /] [br /][br /] [input type="button" value="Process String" onclick="processString()" style="width:250px" /] [br /][br /] [textarea id="txtArea" rows="4" cols="30"][/textarea] [script type="text/javascript"] function processString() { // Clear the textarea element document.getElementById("txtArea").value = ""; // Retrieve the user intput from the textbox var inputString = document.getElementById("txtBox").value; // Regular expression should be in 2 forward slashes // // Letter g at the end of the regular expression performs a global match // match() method returns all substrings that match the given regular expression var result = inputString.match(/\d+/g); if (result != null) { // Add the retrieved numbers to the textarea element for (var i = 0; i [ result.length; i++) { document.getElementById("txtArea").value += result[i] + "\r\n"; } } } [/script]
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11:28
Automata Theory - Lecture 5 - 1 - Regular Expressions
...
published: 26 Sep 2014
Automata Theory - Lecture 5 - 1 - Regular Expressions
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Automata Theory - Lecture 5 - 1 - Regular Expressions
- published: 26 Sep 2014
- views: 0
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8:00
Regular Expression to NFA
Humans can convert a regular expression to a DFA fairly easily using just a few heuristic ...
published: 15 May 2011
author: Barry Brown
Regular Expression to NFA
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Regular Expression to NFA
- published: 15 May 2011
- views: 52388
- author: Barry Brown
Humans can convert a regular expression to a DFA fairly easily using just a few heuristic rules. But a computer needs an algorithm. There are two steps: 1. C...
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16:20
QTP Part 25 Regular Expression
Using Regular Expressions, changing window titles....
published: 26 Feb 2013
author: Free OpenMentor
QTP Part 25 Regular Expression
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QTP Part 25 Regular Expression
- published: 26 Feb 2013
- views: 1036
- author: Free OpenMentor
Using Regular Expressions, changing window titles.
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6:36
Regex Howto : Dominate Your Code with Regular Expressions
Regular Expressions rock. They are an ultra-powerful search pattern language that almost a...
published: 06 Apr 2013
author: Nixie Pixel
Regex Howto : Dominate Your Code with Regular Expressions
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Regex Howto : Dominate Your Code with Regular Expressions
- published: 06 Apr 2013
- views: 35381
- author: Nixie Pixel
Regular Expressions rock. They are an ultra-powerful search pattern language that almost anyone can learn, whether you are into programming or not. || Add me...
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42:00
Google Python Class Day 2 Part 1
Google Python Class Day 2 Part 1:
Regular Expressions.
By Nick Parlante.
Support ...
published: 01 Mar 2010
Google Python Class Day 2 Part 1
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Google Python Class Day 2 Part 1
- published: 01 Mar 2010
- views: 254670
Google Python Class Day 2 Part 1: Regular Expressions. By Nick Parlante. Support materials and exercises: http://code.google.com/edu/languages/google-python-class
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63:50
Mod-02 Lec-13 REGULAR EXPRESSIONS , REGULAR EXPRESSIONS TO NFSA
Theory of Computation by Prof.Kamala Krithivasan,Department of Computer Science and Engine...
published: 05 Oct 2011
author: nptelhrd
Mod-02 Lec-13 REGULAR EXPRESSIONS , REGULAR EXPRESSIONS TO NFSA
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Mod-02 Lec-13 REGULAR EXPRESSIONS , REGULAR EXPRESSIONS TO NFSA
- published: 05 Oct 2011
- views: 20788
- author: nptelhrd
Theory of Computation by Prof.Kamala Krithivasan,Department of Computer Science and Engineering,IIT Madras. For more details on NPTEL visit http://nptel.iitm...
Mod-02 Lec-13 REGULAR EXPRESSIONS , REGULAR EXPRESSIONS TO NFSA
Published: 05 Oct 2011
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20:52
Perl part 4: Regular Expressions
Dr. Rob Edwards from San Diego State University discusses an introduction to using regular...
published: 12 Oct 2013
Perl part 4: Regular Expressions
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Perl part 4: Regular Expressions
- published: 12 Oct 2013
- views: 2
Dr. Rob Edwards from San Diego State University discusses an introduction to using regular expressions in Perl
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52:19
UNIX Shell Regular Expressions and the sed and grep commands [English]
Done for a college assignment. Hope it helps!...
published: 21 Mar 2013
author: Lupuleasa Ionut
UNIX Shell Regular Expressions and the sed and grep commands [English]
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UNIX Shell Regular Expressions and the sed and grep commands [English]
- published: 21 Mar 2013
- views: 14566
- author: Lupuleasa Ionut
Done for a college assignment. Hope it helps!
UNIX Shell Regular Expressions and the sed and grep commands [English]
Published: 21 Mar 2013
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12:31
FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM
FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM....
published: 07 Apr 2014
author: OnlineTeacher
FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM
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FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM
- published: 07 Apr 2014
- views: 1379
- author: OnlineTeacher
FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM.
FINITE AUTOMATA TO REGULAR EXPRESSION BY ARDEN'S THEOREM
Published: 07 Apr 2014
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11:52
Converting a DFA into a Regular Expression
For BYU CS252, Computational Theory. This is Dr. Michael Jones describing how to convert a...
published: 29 Jan 2014
author: Martin Mumford
Converting a DFA into a Regular Expression
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Converting a DFA into a Regular Expression
- published: 29 Jan 2014
- views: 4369
- author: Martin Mumford
For BYU CS252, Computational Theory. This is Dr. Michael Jones describing how to convert a DFA into a Regular Expression. Video was taken using google glass.
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4:53
Regular Expression Examples
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published: 13 Mar 2014
author: CSC236
Regular Expression Examples
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15:06
Compiler Design - Convert Regular Expression to NFA
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published: 25 Dec 2013
Compiler Design - Convert Regular Expression to NFA
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Compiler Design - Convert Regular Expression to NFA
- published: 25 Dec 2013
- views: 116
Compiler Design - Convert Regular Expression to NFA
Published: 25 Dec 2013
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14:51
QTPWorld.com - QTP script using Regular Expression to find Email count in your Inbox.
This video explains how to use Regular Expression in QTP to find the email count in your G...
published: 30 Dec 2010
author: qtpworld
QTPWorld.com - QTP script using Regular Expression to find Email count in your Inbox.
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QTPWorld.com - QTP script using Regular Expression to find Email count in your Inbox.
- published: 30 Dec 2010
- views: 12591
- author: qtpworld
This video explains how to use Regular Expression in QTP to find the email count in your Gmail inbox. Also visit http://qtpworld.com.
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42:50
Theory Of Computation Lecture 63--Conversion of Finite automata to Regular Expression and vice versa
Description....
published: 01 Jul 2014
Theory Of Computation Lecture 63--Conversion of Finite automata to Regular Expression and vice versa
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Theory Of Computation Lecture 63--Conversion of Finite automata to Regular Expression and vice versa
- published: 01 Jul 2014
- views: 907
- author: Gate Lectures by Ravindrababu Ravula
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9:36
How to convert DFA to Regular expression? -Solved Example
An example to explain what to look for when converting a DFA to regular expression . Learn...
published: 30 May 2014
author: Unacademy
How to convert DFA to Regular expression? -Solved Example
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How to convert DFA to Regular expression? -Solved Example
- published: 30 May 2014
- views: 824
- author: Unacademy
An example to explain what to look for when converting a DFA to regular expression . Learn how to convert DFA to regular expression. More videos in the same ...
How to convert DFA to Regular expression? -Solved Example
Published: 30 May 2014
In computing, a regular expression provides a concise and flexible means to "match" (specify and recognize) strings of text, such as particular characters, words, or patterns of characters. Common abbreviations for "regular expression" include regex and regexp. The concept of regular expressions was first popularized by utilities provided by Unix distributions, in particular the editor ed and the filter grep.[citation needed] A regular expression is written in a formal language that can be interpreted by a regular expression processor, which is a program that either serves as a parser generator or examines text and identifies parts that match the provided specification. Historically, the concept of regular expressions is associated with Kleene's formalism of regular sets, introduced in the 1950s.
The following are examples of specifications which can be expressed as a regular expression:
Regular expressions are used by many text editors, utilities, and programming languages to search and manipulate text based on patterns. Some of these languages, including Perl, Ruby, AWK, and Tcl, integrate regular expressions into the syntax of the core language itself. Other programming languages like .NET languages, Java, and Python instead provide regular expressions through standard libraries. For yet other languages, such as Object Pascal(Delphi) and C and C++, non-core libraries are available (however, version C++11 provides regular expressions in its Standard Libraries).
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Regular_expression
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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