Incr Tcl
 | |
| 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 |
| 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 [incr Tcl], 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 [citation needed]. 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[edit]
Features[edit]
Namespace support[edit]
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 [expr $crumbs+4*$nslices] } method clean {} { set crumbs 0 } } itcl::class SmartToaster { inherit Toaster method toast {nslices} { if {$crumbs > 40} { clean } return [chain $nslices] } } set toaster [SmartToaster #auto] $toaster toast 2 C code integration[edit]
Itcl (like Tcl) has built-in support for the integration of C code into Itcl classes.
See also[edit]
References[edit]
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[edit]
- Itcl/incr Tcl project page
- Tcl package site
- tclweb project (there is a mailing list maintained at this site)
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