/*
 * tkUnixInit.c --
 *
 *      This file contains Unix-specific interpreter initialization
 *      functions.
 *
 * Copyright (c) 1995-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tkUnixInit.c,v 1.5 2002/01/25 21:09:37 dgp Exp $
 */
#include "tkInt.h"
#include "tkUnixInt.h"
/*
 * The Init script (common to Windows and Unix platforms) is
 * defined in tkInitScript.h
 */
#include "tkInitScript.h"
/*
 *----------------------------------------------------------------------
 *
 * TkpInit --
 *
 *      Performs Unix-specific interpreter initialization related to the
 *      tk_library variable.
 *
 * Results:
 *      Returns a standard Tcl result.  Leaves an error message or result
 *      in the interp's result.
 *
 * Side effects:
 *      Sets "tk_library" Tcl variable, runs "tk.tcl" script.
 *
 *----------------------------------------------------------------------
 */
int
TkpInit(interp)
    Tcl_Interp *interp;
{
    CONST char *libDir;
    libDir = Tcl_GetVar(interp, "tk_library", TCL_GLOBAL_ONLY);
    if (libDir == NULL || *libDir == '\0') {
        Tcl_SetVar(interp, "tk_library", TK_LIBRARY, TCL_GLOBAL_ONLY);
    }
    TkCreateXEventSource();
#ifndef _LANG
    return Tcl_Eval(interp, initScript);
#else
    return TCL_OK;
#endif
}
/*
 *----------------------------------------------------------------------
 *
 * TkpGetAppName --
 *
 *      Retrieves the name of the current application from a platform
 *      specific location.  For Unix, the application name is the tail
 *      of the path contained in the tcl variable argv0.
 *
 * Results:
 *      Returns the application name in the given Tcl_DString.
 *
 * Side effects:
 *      None.
 *
 *----------------------------------------------------------------------
 */
void
TkpGetAppName(interp, namePtr)
    Tcl_Interp *interp;
    Tcl_DString *namePtr;       /* A previously initialized Tcl_DString. */
{
    CONST char *p, *name;
    name = Tcl_GetVar(interp, "argv0", TCL_GLOBAL_ONLY);
    if ((name == NULL) || (*name == 0)) {
        name = "tk";
    } else {
        p = strrchr(name, '/');
        if (p != NULL) {
            name = p+1;
        }
    }
    Tcl_DStringAppend(namePtr, name, -1);
}
/*
 *----------------------------------------------------------------------
 *
 * TkpDisplayWarning --
 *
 *      This routines is called from Tk_Main to display warning
 *      messages that occur during startup.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      Generates messages on stdout.
 *
 *----------------------------------------------------------------------
 */
void
TkpDisplayWarning(msg, title)
    CONST char *msg;            /* Message to be displayed. */
    CONST char *title;          /* Title of warning. */
{
    Tcl_Channel errChannel = Tcl_GetStdChannel(TCL_STDERR);
    if (errChannel) {
        Tcl_WriteChars(errChannel, title, -1);
        Tcl_WriteChars(errChannel, ": ", 2);
        Tcl_WriteChars(errChannel, msg, -1);
        Tcl_WriteChars(errChannel, "\n", 1);
    }
}