Itcl | |
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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.
Itcl allows namespaces to be used for organizing commands and variables.
Example:
packagerequireItcl itcl::classToaster{variablecrumbs0methodtoast{nslices}{if{$crumbs>50}{error"== FIRE! FIRE! =="}setcrumbs[expr$crumbs+4*$nslices]}methodclean{}{setcrumbs0}}itcl::classSmartToaster{inheritToaster methodtoast{nslices}{if{$crumbs>40}{clean}return[chain$nslices]}}settoaster[SmartToaster#auto]$toastertoast2
Itcl (like Tcl) has built-in support for the integration of C code into Itcl classes.
incr Tcl from the Ground Up by Chad Smith, published in January 2000.