/usr/share/xcrysden/Tcl/cygwin.tcl is in xcrysden-data 1.5.60-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Author: #
# ------ #
# Anton Kokalj Email: Tone.Kokalj@ijs.si #
# Department of Physical and Organic Chemistry Phone: x 386 1 477 3523 #
# Jozef Stefan Institute Fax: x 386 1 477 3811 #
# Jamova 39, SI-1000 Ljubljana #
# SLOVENIA #
# #
# Source: $XCRYSDEN_TOPDIR/Tcl/cygwin.tcl
# ------ #
# Copyright (c) 2004 by Anton Kokalj #
#############################################################################
#
# this file contains a few very dirty hacks needed to run under CYGWIN
#
if { $xcrys(platform) == "windows" } {
# testing ...
rename exec _tcl_exec
proc exec {args} {
global env
# first try a normal exec
set result {}
if { [catch {set result [uplevel 1 [list eval _tcl_exec $args]]}] } {
# try to execute via "launch.sh" wrapper
set result [uplevel 1 [list eval _tcl_exec sh $env(XCRYSDEN_TOPDIR)/scripts/launch.sh] $args]
}
return $result
}
}
if { $xcrys(platform) == "cygwin" } {
rename pwd _tcl_pwd
rename exec _tcl_exec
rename tk_getSaveFile _tk_getSaveFile
rename tk_getOpenFile _tk_getOpenFile
proc pwd {} {
global env
# Don't use Tcl pwd command, it will return C:\cygwin\...,
# and CYGWIN can't handle it. Use a pwd.sh wrapper instead.
return [exec $env(XCRYSDEN_TOPDIR)/scripts/pwd.sh]
}
proc tk_getSaveFile {args} {
set sfile [eval _tk_getSaveFile $args]
return [cygwin_unixpath $sfile]
}
proc tk_getOpenFile {args} {
set sfile [eval _tk_getOpenFile $args]
return [cygwin_unixpath $sfile]
}
proc cygwin_unixpath {path} {
if { [regexp -- {^[A-Z]:/} $path] } {
set drive [string tolower [string index $path 0]]
regsub {^[A-Z]:} $path /cygdrive/$drive path
}
return $path
}
}
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