* doc/Tcl_Main.3:

        * generic/tclMain.c:  Substantial rewrite and expanded documentation
        of Tcl_Main to correct a number of bugs and flaws:

                * Interactive Tcl_Main can now enter a main loop, exit
                  that loop and continue interactive operations.  The loop
                  may even exit in the midst of interactive command typing
                  without loss of the partial command.  [Bugs 486453, 474131]
                * Tcl_Main now gracefully handles deletion of its master
                  interpreter.
                * Interactive Tcl_Main can now operate with non-blocking stdin
                * Interactive Tcl_Main can now detect EOF on stdin even in
                  mid-command.  [Bug 491341]
                * Added VFS-aware internal routines for managing the
                  startup script selection.
                * Tcl variable 'tcl_interactive' is now linked to C variable
                  'tty' so that one can disable/enable interactive prompts
                  at the script level when there is no startup script.  This
                  is meant for use by the test suite.
                * Consistent use of the Tcl libraries standard channels as
                  returned by Tcl_GetStdChannel(); as opposed to the channels
                  named 'stdin', 'stdout', and 'stderr' in the master interp,
                  which can be different or unavailable.
                * Tcl_Main now calls Tcl_Exit() if evaluation of [exit] in the
                  master interpreter returns, assuring Tcl_Main does not return.                * Documented Tcl_Main's absence from public stub table
                * Documented that Tcl_Main does not return.
                * Documented Tcl variables set by Tcl_Main.
                * All prompts are done from a single procedure, Prompt.
                * Use of Tcl_Obj-enabled interfaces everywhere.

        * generic/tclInt.decls (TclGetStartupScriptPath,
          TclSetStartupScriptPath): New internal VFS-aware routines for
        managing the startup script of Tcl_Main.
        * generic/tclIntDecls.h:
        * generic/tclStubInit.c: make genstubs

        * generic/tclTest.c (TestsetmainloopCmd,TestexitmainloopCmd,
          Tcltest_Init,TestinterpdeleteCmd):
        * tests/main.test (new):  Added new file to test suite that
        thoroughly tests generic/tclMain.c; added some new test commands
        for testing Tcl_SetMainLoop().

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