Source Lines of Code
Description
MPJ:(Add to this later)
Tools
SLOCCount [L1 ] supports 27 differnent languages (including Tcl) and comes in source and RPMs (a MsWindows install requires Cygwin). Counts only physical SLOC.
CodeCount [L2 ] supports 9+ different languages (not Tcl) and is distributed as ANSI C code under a USC Limited Public License. Counts physical and logical SLOC.
TSA [L3 ] which comes as part of the new fickle package counts lines of comments, logical lines of code, and function invocations in Tcl code. (This is the only pure Tcl package that I know that does Tcl SLOC)