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.
This topic is presented on public course
Tcl Basics
Examples from our training material
| T247.tcl | Tcl in use for CGI scripting |
| aretest | advanced regular expression match demo |
More web pages on this subject
Regular Expressions in Tcl
Opentalk forum discussions related to this topic
reg parsingreading a hex number and freqRegexp helpExtracting numerals from expect out bufferegrep from a variablRegular Expressions
Background information
Some modules are
available for download as a sample of our material or under an
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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.
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