The attached patch enables zless to correctly view standard input without changing its behavior in other cases.
There is still, however, one remaining problem - the patch depends on a functionality introduced in less 429-1 and I am not sure how to sanely express such a dependency, given that gzip merely suggests less. Any suggestions?
diff -ur gzip-1.3.12/zless.1 gzip/zless.1 --- gzip-1.3.12/zless.1 2009-08-09 22:39:40.000000000 +0200 +++ gzip/zless.1 2009-08-10 02:02:46.641941863 +0200 @@ -8,7 +8,7 @@ .I Zless is a filter which allows examination of compressed or plain text files one screenful at a time on a soft-copy terminal. It is the equivalent of -setting the environment variable LESSOPEN to '|gzip -cdfq -- %s', +setting the environment variable LESSOPEN to '|-gzip -cdfq -- %s', and the environment variable LESSMETACHARS to "'<space><tab><newline>;*?"()<>[|&^`#\\$%=~'", and then running @@ -21,12 +21,6 @@ filters. .SH "SEE ALSO" zmore(1), less(1), lessfile(1), lesspipe(1) -.SH "BUGS" -.I Zless -does not work with compressed data that is piped to it via standard -input; it requires that input files be specified as arguments. -If you really want to use less in a pipe, -then do the uncompress explicitly and pipe to less instead of using zless. .SH "COPYRIGHT NOTICE" Copyright \(co 2006 Free Software Foundation, Inc. .br diff -ur gzip-1.3.12/zless.in gzip/zless.in --- gzip-1.3.12/zless.in 2007-02-05 21:54:26.000000000 +0100 +++ gzip/zless.in 2009-08-10 02:00:04.188624923 +0200 @@ -49,5 +49,5 @@ export LESSMETACHARS fi -LESSOPEN="|gzip -cdfq -- %s"; export LESSOPEN +LESSOPEN="|-gzip -cdfq -- %s"; export LESSOPEN exec less "$@"
