TIP: 440 Title: Add engine to tcl_platform Array Version: $Revision: 1.13 $ Author: Joe Mistachkin Author: Jan Nijtmans State: Final Type: Project Vote: Done Created: 14-Jan-2016 Post-History: Keywords: language implementation,platform Tcl-Version: 8.5 ~ Abstract This TIP proposes a mechanism for determining the implementation of the Tcl language currently in use. ~ Rationale There is more than one implementation of the Tcl language (see [http://wiki.tcl.tk/13992]). These implementations differ greatly in their degree of compatibility and completeness. At the script level, there is currently no standard way to determine which implementation of the Tcl language is being used. ~ Specification The '''engine''' element will be added to the '''tcl_platform''' array. Its value will be set to '''"Tcl"'''. ~ Reference Implementation A reference implementation of this TIP is available [https://core.tcl.tk/tcl/timeline?r=tclPlatformEngine]. The TH1, Jim, Picol, JTcl, and Eagle implementations of the Tcl language already implement this feature, each using the name of the project as the value of the '''tcl_platform(engine)''' element. ~ Copyright This document has been placed in the public domain.