update to modern debian/copyright format

[debian/gzip] / zless.in

diff --git a/zless.in b/zless.in
index dae346f82e9fc55d9d3fbc033da127d2afdd55b0..d34068d2b195f05d909eb9873145c976abaef587 100644 (file)
--- a/zless.in
+++ b/zless.in
@@ -1,10 +1,10 @@
 #!/bin/sh
 
 #!/bin/sh
 

-# Copyright (C) 1998, 2002, 2006 Free Software Foundation
+# Copyright (C) 1998, 2002, 2006-2007, 2010-2018 Free Software Foundation, Inc.

 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or

 # (at your option) any later version.
 
 # This program is distributed in the hope that it will be useful,
 # (at your option) any later version.
 
 # This program is distributed in the hope that it will be useful,


@@ -16,17 +16,15 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 

-PATH="BINDIR:$PATH"; export PATH
-

 version="zless (gzip) @VERSION@
 version="zless (gzip) @VERSION@

-Copyright (C) 2006 Free Software Foundation, Inc.
+Copyright (C) 2007, 2011-2018 Free Software Foundation, Inc.

 This is free software.  You may redistribute copies of it under the terms of
 This is free software.  You may redistribute copies of it under the terms of

-the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
+the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.

 There is NO WARRANTY, to the extent permitted by law.
 
 Written by Paul Eggert."
 
 There is NO WARRANTY, to the extent permitted by law.
 
 Written by Paul Eggert."
 

-usage="Usage: zless [OPTION]... [FILE]...
+usage="Usage: $0 [OPTION]... [FILE]...

 Like 'less', but operate on the uncompressed contents of any compressed FILEs.
 
 Options are the same as for 'less'.
 Like 'less', but operate on the uncompressed contents of any compressed FILEs.
 
 Options are the same as for 'less'.


@@ -34,9 +32,40 @@ Options are the same as for 'less'.
 Report bugs to <bug-gzip@gnu.org>."
 
 case $1 in
 Report bugs to <bug-gzip@gnu.org>."
 
 case $1 in

---help)    exec echo "$usage";;
---version) exec echo "$version";;
+--help)      printf '%s\n' "$usage"   || exit 1; exit;;
+--version)   printf '%s\n' "$version" || exit 1; exit;;
+esac
+
+if test "${LESSMETACHARS+set}" != set; then
+  # Work around a bug in less 394 and earlier;
+  # it mishandles the metacharacters '$%=~'.
+  space=' '
+  tab='        '
+  newline='
+'
+  LESSMETACHARS="$space$tab$newline'"';*?"()<>[|&^`#\$%=~'
+  export LESSMETACHARS
+fi
+
+less_version=`less -V 2>/dev/null`
+case $less_version in
+less' '45[1-9]* | \
+less' '4[6-9][0-9]* | \
+less' '[5-9][0-9][0-9]* | \
+less' '[1-9][0-9][0-9][0-9]*)
+   check_exit_status='|';;
+*) check_exit_status='';;
+esac
+case $less_version in
+less' '429* | \
+less' '4[3-9][0-9]* | \
+less' '[5-9][0-9][0-9]* | \
+less' '[1-9][0-9][0-9][0-9]*)
+   use_input_pipe_on_stdin='-';;
+*) use_input_pipe_on_stdin='';;

 esac
 
 esac
 

-LESSOPEN="|gzip -cdfq -- %s"; export LESSOPEN
+LESSOPEN="|$check_exit_status${use_input_pipe_on_stdin}gzip -cdfq -- %s"
+export LESSOPEN
+

 exec less "$@"
 exec less "$@"