Training, Open Source Programming Languages

Print friendly page
Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
Retiring, March 2020 - sorry, you have missed our final public course.
The Coronavirus situation has lead us to suspend public training - which was on the cards anyway, with no plans to resume

Please ask about private 'maintenance' training for Python, Tcl, Perl, PHP, Lua, etc
Happily continuing private consultancy / programming work
 
Regular Expressions in Ruby

Ruby has a wide variety of string handling methods, and a very strong regular expression engine. In one of the example I wrote today ([link] Regular Expression Example in Ruby) I've included a primer on the elements of a Ruby Regular expression as well as sample source code - showing you how you can match things like email addresses and postcode, and how you can extract the information from different parts of the matches too.

Other new Ruby string handling examples:

[link] Using a string as a collection

[link] Formatted printing in Ruby - printf sprintf and %

[link] Running a piped command via backquotes
(written 2009-07-16)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
R109 - Ruby - Strings and Regular Expressions
  [4549] Clarrissa-Marybelle - too long to really fit? - (2015-10-23)
  [4505] Regular Expressions for the petrified - in Ruby - (2015-06-03)
  [4388] Global Regular Expression matching in Ruby (using scan) - (2015-01-08)
  [3758] Ruby - standard operators are overloaded. Perl - they are not - (2012-06-09)
  [3757] Ruby - a teaching example showing many of the language features in short but useful program - (2012-06-09)
  [3621] Matching regular expressions, and substitutions, in Ruby - (2012-02-23)
  [3424] Divide 10000 by 17. Do you get 588.235294117647, 588.24 or 588? - Ruby and PHP - (2011-09-08)
  [2980] Ruby - examples of regular expressions, inheritance and polymorphism - (2010-10-02)
  [2623] Object Oriented Ruby - new examples - (2010-02-03)
  [2621] Ruby collections and strings - some new examples - (2010-02-03)
  [2614] Neatly formatting results into a table - (2010-02-01)
  [2608] Search and replace in Ruby - Ruby Regular Expressions - (2010-01-31)
  [2295] The dog is not in trouble - (2009-07-17)
  [1891] Ruby to access web services - (2008-11-16)
  [1887] Ruby Programming Course - Saturday and Sunday - (2008-11-16)
  [1875] What are exceptions - Python based answer - (2008-11-08)
  [1588] String interpretation in Ruby - (2008-03-21)
  [1305] Regular expressions made easy - building from components - (2007-08-16)
  [1195] Regular Express Primer - (2007-05-20)
  [987] Ruby v Perl - interpollating variables - (2006-12-15)
  [986] puts - opposite of chomp in Ruby - (2006-12-15)
  [970] String duplication - x in Perl, * in Python and Ruby - (2006-12-07)


Back to
Object Orientation in Ruby - intermediate examples
 Previous and next
or
Horse's mouth home		 Forward to
Can you learn to program in 4 days?
Some other Articles
Standing on the corner, Melksham Carnival
Variable scope - what is it, and how does it Ruby?
Can you learn to program in 4 days?
Regular Expressions in Ruby
Object Orientation in Ruby - intermediate examples
Collection objects (array and hash) in Ruby
Opening and reading files - the ruby fundamentals
pre-Inaugural briefing - Melksham Community Area Partnership
Wiltshire Community Area Partnerships
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).
You can Add a comment or ranking to this page

Like this? ??

Related short articles
One line scripts - Awk, Perl and Ruby
Ruby testing with RSpec - a new example
Processing data line by line - iterator in Ruby with yield
Reading in XML in Ruby with xmlsimple
Expect with Ruby - a training example to get you started
Running shell (operating system) commands from within Ruby
Exceptions in Ruby - throwing, catching and using
Alternating valuses / flip-flop / toggle - example in Ruby
Separating detailed data code from the main application - Ruby example
Ruby training, half a world away
Thin application, thick objects - keep you main code simple. Example in Ruby
Easy example - data record to object and object to data record mapping in Ruby
Behaviour and test driven development in Ruby using RSpec
Perl, PHP, Python, Lua, Tcl, C++, Ruby - final public courses for 2015
RUby - loading, using, changing, storing JSON format data
Build up classes into applications sharing data types in Ruby
RSpec - Ruby testing (stand alone example / no cucumber)
Throwing a die - exercise in Ruby
Where does Ruby load modules from, and how to load from current directory
Separating your code for easier testing, understanding and re-use; example in Ruby
Reading and parsing a JSON object in Ruby
Significant work - beyond helloworld in Ruby
Ruby - where one statement ends and the next begins
Finding sum, minimum, maximum and average in Python (and Ruby)
Installing Cucumber (Ruby)
Behaviour Driven Development / Ruby and Cucumber
Conditionals, loops and methods in Ruby - a primer with simple examples
Ruby - the second rung of learning the language
Shuffling a list - Ruby and Python
A bright new gem - updated Ruby training
Python, PHP, Ruby, C, Lua, etc ... course prices held for the rest of 2014
Regular Expression Substitution - Tcl
Endorsed Perl, Python and PHP training - Tcl, Lua, Ruby and C too!
Public courses - Python, PHP, Perl, Ruby, Lua, Tcl, C and C++ - autumn 2013 and through 2014
Melksham Regular Public Transport Map - as at August 2013
Clear, concise examples - Ruby classes and objects.
Reading and checking user inputs - first lessons - Ruby
Ruby / SQLite3 example program, showing JOIN v LEFT JOIN
Web and console - same principle, same code - Ruby example
Upcoming courses at Well House Manor - Ruby, Python, Perl
First match or all matches? Perl Regular Expressions
BODMAS - the order a computer evaluates arithmetic expressions
Ruby Documentation through rdoc
More than just matching with a regular expression in PHP
Getting more than a yes / no answer from a regular expression pattern match
Load path, load and require in Ruby, and a change from 1.8 to 1.9
Standard methods available on all objects in Ruby
Private, Protected, Public in Ruby. What about interfaces and abstract classes in Ruby?
Ruby of Rails - cleanly displaying model data in the view
Adding validation to form entries and sticky fields - Ruby on Rails
Providing a form to allow the user to add data to the model - Ruby on Rails
Multiple views in a single appication - sharing common parts of the template - Ruby on Rails
Ruby on the web - a simple example using CGI
Hello World - Ruby on Rails - a checklist of each step
Muttable v immutable and implications - Ruby
Why you should use objects even for short data manipulation programs in Ruby
Ruby on Rails - how it flows, and where the files go
Refresh and Revision training class days - Perl / PHP / Python / Lua / Ruby / Tcl / C / C++
Object oriented or structured - a comparison in Python. Also writing clean regular expressions
Melksham Train Service - please support the TransWilts case for regular trains
Possessive Regular Expression Matching - Perl, Objective C and some other languages
Some TestWise examples - helping use Ruby code to check your web site operation
Loading Ruby classes - where does Ruby look?
Ruby v Perl - a comparison example
Finding all matches to a pattern in Perl regular expressions
Learning to program in PHP - Regular Expression and Associative Array examples
Regular Expression modifiers in PHP - summary table
PHP - moving from ereg to preg for regular expressions
Sorta sorting a hash, and what if an exception is NOT thrown - Ruby
Ruby at both extremes of your website
Sigils - the characters on the start of variable names in Perl, Ruby and Fortran
Searching through all the files in or below a directory - Ruby, Tcl, Perl
Automed web site testing scripted in Ruby using watir-webdriver
Assigning values to variables within other statements - Ruby
Ruby off the Rails?
Do I need to initialise variables - programming in C, C++, Perl, PHP, Python, Ruby or Java.
Ruby - a training example that puts many language elements together to demonstrate the whole
All possible combinations from a list (Python) or array (Ruby)
Process every member of an array, and sort an array - Ruby
Multiple inputs, multiple out, ruby functions
© WELL HOUSE CONSULTANTS LTD., 2020: 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/2293_Reg ... -Ruby.html • PAGE BUILT: Sat May 27 16:49:10 2017 • BUILD SYSTEM: WomanWithCat