projects / micropolis / blame
| Commit | Line | Data |
|---|---|---|
| 6a5fa4e0 MG |
1 | # |
| 2 | # pushd.tcl -- | |
| 3 | # | |
| 4 | # C-shell style directory stack procs. | |
| 5 | # | |
| 6 | #------------------------------------------------------------------------------ | |
| 7 | # Copyright 1992 Karl Lehenbauer and Mark Diekhans. | |
| 8 | # | |
| 9 | # Permission to use, copy, modify, and distribute this software and its | |
| 10 | # documentation for any purpose and without fee is hereby granted, provided | |
| 11 | # that the above copyright notice appear in all copies. Karl Lehenbauer and | |
| 12 | # Mark Diekhans make no representations about the suitability of this | |
| 13 | # software for any purpose. It is provided "as is" without express or | |
| 14 | # implied warranty. | |
| 15 | #------------------------------------------------------------------------------ | |
| 16 | # $Id: pushd.tcl,v 2.0 1992/10/16 04:52:06 markd Rel $ | |
| 17 | #------------------------------------------------------------------------------ | |
| 18 | # | |
| 19 | ||
| 20 | #@package: TclX-directory_stack pushd popd dirs | |
| 21 | ||
| 22 | global TCLENV(dirPushList) | |
| 23 | ||
| 24 | set TCLENV(dirPushList) "" | |
| 25 | ||
| 26 | proc pushd {args} { | |
| 27 | global TCLENV | |
| 28 | ||
| 29 | if {[llength $args] > 1} { | |
| 30 | error "bad # args: pushd [dir_to_cd_to]" | |
| 31 | } | |
| 32 | set TCLENV(dirPushList) [linsert $TCLENV(dirPushList) 0 [pwd]] | |
| 33 | ||
| 34 | if {[llength $args] != 0} { | |
| 35 | cd [glob $args] | |
| 36 | } | |
| 37 | } | |
| 38 | ||
| 39 | proc popd {} { | |
| 40 | global TCLENV | |
| 41 | ||
| 42 | if [llength $TCLENV(dirPushList)] { | |
| 43 | cd [lvarpop TCLENV(dirPushList)] | |
| 44 | pwd | |
| 45 | } else { | |
| 46 | error "directory stack empty" | |
| 47 | } | |
| 48 | } | |
| 49 | ||
| 50 | proc dirs {} { | |
| 51 | global TCLENV | |
| 52 | echo [pwd] $TCLENV(dirPushList) | |
| 53 | } |