Exercises, examples and other material relating to training module T213. This topic is presented on public courses Learning to program in Tcl, Tcl Basics

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Tcl Programming - training course - The Tcl programming language, and Expect Tcl Programming - The Tcl programming language, and Expect This course covers the fundamentals of the Tcl programming language. You'll learn about Tcl ... http://www.wellho.net/course/tbfull.html  [course]

Learning to Program in Tcl - training course - The Tcl programming language, and Expect Learning to Program in Tcl - The Tcl programming language, and Expect This course covers the fundamentals of the Tcl programming language. You'll learn ... http://www.wellho.net/course/tlfull.html  [course]

example of Tcl namespaces and packages Packages in Tcl allow you to define a file of code that's going to be loaded as required at run time. Namespaces allow you to define a new set of variable ... http://www.wellho.net/mouth/146_exam ... kages.html  [short article]

Tcl - uplevel to run code at calling level Tcl procs (they're Tcl's functions) can pass information back via the return command, and they can access data in the top level of code via the global ... http://www.wellho.net/mouth/2476_Tcl ... level.html  [short article]

Tcl - learning how to use namespaces, packages and libraries together Tcl supports both packages (which allow code to be loaded from libraries at run time) and namespaces (which allow for procs and variables to be grouped ... http://www.wellho.net/mouth/1529_Tcl ... ether.html  [short article]

Packages and Namespaces are like Suitcases and Aircraft Are Suitcases and Aircraft the same things? No, clearly they're not, but you'll often use them in close assocoation with one another. When I was in ... http://www.wellho.net/mouth/1339_Pac ... craft.html  [short article]

Namespace export and import #!/usr/bin/tcl # Count calls to a proc, use namespaces namespace eval fingers { variable currentcount 0 namespace export counter proc ... http://www.wellho.net/resources/ex.php4?item=t213/ns_exim  [code sample]

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As your code grows, you'll want to divide it into series of modules. These are known as packages in Tcl. You'll also want to use a separate namespace so that procedure names in one package don't conflict with the same procedure name in another. Libraries allow you to load code in C as well as Tcl into your interpreter.

This topic is presented on public courses Learning to program in Tcl, Tcl Basics

2wice	Using a package that contains a namespace
dinpack	Using packages and namespaces together
doubler.tcl	define a package to contain a namespace
gpack.tcl	package goose - goes with dinpack
ns_exim	Namespace export and import
ns_no	shows how variables are lost between proc calls
ns_up	Variables saved between proc calls in the next code level up
ns_y2	Counting proc calls using a namespace - shorter example
ns_yes	Saving variables in a namespace
packs	Loading a package
show.tcl	Defining a package
toes.tcl	Package to go with twice demo
tpack.tcl	package chicken - part of dinpack demo
twice	Using a package - without namespaces
updown	uplevel - performed in calling code variable space

Public Tcl course