96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
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/*
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* tkUnixInit.c --
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*
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* This file contains Unix-specific interpreter initialization
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* functions.
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*
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* Copyright (c) 1995-1996 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* SCCS: @(#) tkUnixInit.c 1.13 96/08/22 09:23:05
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*/
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#include "tkInt.h"
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#include "tkUnixInt.h"
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/*
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* Default directory in which to look for libraries:
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*/
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static char defaultLibraryDir[200] = TK_LIBRARY;
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/*
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* The following string is the startup script executed in new
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* interpreters. It looks on disk in several different directories
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* for a script "tk.tcl" that is compatible with this version
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* of Tk. The tk.tcl script does all of the real work of
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* initialization.
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*/
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static char initScript[] =
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"proc tkInit {} {\n\
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global tk_library tk_version tk_patchLevel env\n\
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rename tkInit {}\n\
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set dirs {}\n\
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if [info exists env(TK_LIBRARY)] {\n\
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lappend dirs $env(TK_LIBRARY)\n\
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}\n\
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lappend dirs $tk_library\n\
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lappend dirs [file dirname [info library]]/lib/tk$tk_version\n\
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set parentDir [file dirname [file dirname [info nameofexecutable]]] \n\
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lappend dirs $parentDir/lib/tk$tk_version\n\
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if [string match {*[ab]*} $tk_patchLevel] {\n\
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set lib tk$tk_patchLevel\n\
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} else {\n\
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set lib tk$tk_version\n\
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}\n\
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lappend dirs [file dirname $parentDir]/$lib/library\n\
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lappend dirs [file dirname [file dirname [info library]]]/$lib/library\n\
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lappend dirs $parentDir/library\n\
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foreach i $dirs {\n\
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set tk_library $i\n\
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if ![catch {uplevel #0 source $i/tk.tcl}] {\n\
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return\n\
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}\n\
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}\n\
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set msg \"Can't find a usable tk.tcl in the following directories: \n\"\n\
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append msg \" $dirs\n\"\n\
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append msg \"This probably means that Tk wasn't installed properly.\n\"\n\
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error $msg\n\
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}\n\
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tkInit";
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/*
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*----------------------------------------------------------------------
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*
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* TkPlatformInit --
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*
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* Performs Unix-specific interpreter initialization related to the
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* tk_library variable.
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*
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* Results:
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* Returns a standard Tcl result. Leaves an error message or result
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* in interp->result.
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*
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* Side effects:
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* Sets "tk_library" Tcl variable, runs "tk.tcl" script.
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*
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*----------------------------------------------------------------------
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*/
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int
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TkPlatformInit(interp)
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Tcl_Interp *interp;
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{
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char *libDir;
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libDir = Tcl_GetVar(interp, "tk_library", TCL_GLOBAL_ONLY);
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if (libDir == NULL) {
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Tcl_SetVar(interp, "tk_library", defaultLibraryDir, TCL_GLOBAL_ONLY);
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}
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TkCreateXEventSource();
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return Tcl_Eval(interp, initScript);
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}
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