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Tcl/Tk module T247
Advanced Regular Expressions
Exercises, examples and other material relating to training module T247. This topic is presented on public courses Learning to program in Tcl, Tcl Programming, Tcl Programming
Regular expressions are considerably enhanced in recent versions of Tcl, and this module, which assumes some prior knowledge of basic regular expressions, goes into advanced features such as groupings, sparse and greedy counts, and the Posix standard groups.
Regular expressions are considerably enhanced in recent versions of Tcl, and this module, which assumes some prior knowledge of basic regular expressions, goes into advanced features such as groupings, sparse and greedy counts, and the Posix standard groups.
Related technical and longer articles
Pattern Matching - a primer on regular ExpressionsExamples from our training material
| T247.tcl | Tcl in use for CGI scripting |
| aretest | advanced regular expression match demo |
| blob | Progressive regsub examples |
| sparkle | Sparse v Greedy regular expressions |
Background information
Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from [here].
Topics covered in this module
Introduction.
What are advanced regular expressions?.
The working of a regular expression.
The elements of a regular expression.
Literal characters.
Assertions.
Character groups.
Counts.
Extensions.
A little more on regexp and regsub.
A further example.
What are advanced regular expressions?.
The working of a regular expression.
The elements of a regular expression.
Literal characters.
Assertions.
Character groups.
Counts.
Extensions.
A little more on regexp and regsub.
A further example.
Complete learning
If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.
Well House Consultants specialise in training courses in Tcl/Tk, Expect,Ruby, Lua, Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.
Well House Consultants specialise in training courses in Tcl/Tk, Expect,Ruby, Lua, Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.
We have a technical library of over 700 books on the subjects on which we teach. These books are available for reference at our training centre.
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