X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=zless.in;h=d34068d2b195f05d909eb9873145c976abaef587;hb=92249085071a973e2c0621b0415b93d2e48bb00d;hp=952738190c0049a1db1e520b127470d595b61c4a;hpb=302189d124ed5849c2589ea92e912eb24fdc4ab3;p=debian%2Fgzip

diff --git a/zless.in b/zless.in
index 9527381..d34068d 100644
--- a/zless.in
+++ b/zless.in
@@ -1,10 +1,71 @@
-:
 #!/bin/sh
 
-: ${PAGER=less}
-export PAGER
+# Copyright (C) 1998, 2002, 2006-2007, 2010-2018 Free Software Foundation, Inc.
 
-PATH="BINDIR:$PATH"
-export PATH
+# 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 3 of the License, or
+# (at your option) any later version.
 
-exec zmore ${1+"$@"}
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+version="zless (gzip) @VERSION@
+Copyright (C) 2007, 2011-2018 Free Software Foundation, Inc.
+This is free software.  You may redistribute copies of it under the terms of
+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."
+
+usage="Usage: $0 [OPTION]... [FILE]...
+Like 'less', but operate on the uncompressed contents of any compressed FILEs.
+
+Options are the same as for 'less'.
+
+Report bugs to <bug-gzip@gnu.org>."
+
+case $1 in
+--help)      printf '%s\n' "$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 $less_version in
+less' '429* | \
+less' '4[3-9][0-9]* | \
+less' '[5-9][0-9][0-9]* | \
+less' '[1-9][0-9][0-9][0-9]*)
+   use_input_pipe_on_stdin='-';;
+*) use_input_pipe_on_stdin='';;
+esac
+
+LESSOPEN="|$check_exit_status${use_input_pipe_on_stdin}gzip -cdfq -- %s"
+export LESSOPEN
+
+exec less "$@"