 | |
| Paradigm | multi-paradigm: object-oriented, functional, Imperative, event-driven programming |
|---|---|
| Designed by | Michael McLennan |
| Developer | Michael McLennan |
| First appeared | 1993 |
| Stable release | Itcl4.1.1 / 21 December 2017; 7 years ago (2017-12-21) |
| Typing discipline | dynamic typing, everything can be treated as a string |
| License | BSD-style |
| Website | itcl at SourceForge |
| Influenced by | |
| Tcl, C++ | |
incr Tcl (commonly stylised as , and often abbreviated to itcl) is a set of object-oriented extensions for the Tcl programming language. It is widely used among the Tcl community, and is generally regarded as industrial strength . Its name is a pun on "C++". Itcl implementations exist as both a package that may be dynamically loaded by a Tcl application, as well as an independent standalone language with its own interpreter.
Overview
Features
Namespace support
Itcl allows namespaces to be used for organizing commands and variables.
Example:
package require Itcl
itcl::class Toaster {
variable crumbs 0
method toast {nslices} {
if {$crumbs > 50} {
error "== FIRE! FIRE! =="
}
set crumbs
}
method clean {} {
set crumbs 0
}
}
itcl::class SmartToaster {
inherit Toaster
method toast {nslices} {
if {$crumbs > 40} {
clean
}
return
}
}
set toaster
$toaster toast 2
C code integration
Itcl (like Tcl) has built-in support for the integration of C code into Itcl classes.
See also
References
incr Tcl from the Ground Up by Chad Smith, published in January 2000.
- This is a complete reference manual for incr Tcl, covering language fundamentals, OO design issues, overloading, code reuse, multiple inheritance, abstract base classes, and performance issues. Despite its breadth, it follows a tutorial, rather than encyclopedic, approach. This book is out of print as of September 2004.
External links
- Itcl/incr Tcl project page
- Tcl package site
- tclweb project (there is a mailing list maintained at this site)
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