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-rw-r--r--src/scripts/xzgrep.in19
1 files changed, 17 insertions, 2 deletions
diff --git a/src/scripts/xzgrep.in b/src/scripts/xzgrep.in
index e5186baf..fce7940a 100644
--- a/src/scripts/xzgrep.in
+++ b/src/scripts/xzgrep.in
@@ -63,13 +63,28 @@ while test $# -ne 0; do
optarg=
case $option in
- (-[0123456789abcdhHiIKLlnoqrRsTuUvVwxyzZ]?*)
+ (-[0123456789abcdEFGhHiIKlLnoPqrRsTuUvVwxyzZ]*[!0123456789]*)
+ # Something like -Fiv was specified, that is, $option contains more
+ # than one option of which the first option (in this example -F)
+ # doesn't take an argument. Split the first option into a standalone
+ # argument and continue parsing the rest of the options (in this example,
+ # replace -Fiv with -iv in the argument list and set option=-F).
+ #
+ # If there are digits [0-9] they are treated as if they were a single
+ # option character because this syntax is an alias for -C for GNU grep.
+ # For example, "grep -25F" is equivalent to "grep -C25 -F". If only
+ # digits are specified like "grep -25" we don't get here because the
+ # above pattern in the case-statement doesn't match such strings.
arg2=-\'$(expr "X${option}X" : 'X-.[0-9]*\(.*\)' | sed "$escape")
eval "set -- $arg2 "'${1+"$@"}'
option=$(expr "X$option" : 'X\(-.[0-9]*\)');;
(--binary-*=* | --[lm]a*=* | --reg*=*)
+ # These options require an argument and an argument has been provided
+ # with the --foo=argument syntax. All is good.
;;
- (-[ABCDefm] | --binary-* | --file | --[lm]a* | --reg*)
+ (-[ABCDefmX] | --binary-* | --file | --[lm]a* | --reg*)
+ # These options require an argument which should now be in $1.
+ # If it isn't, display an error and exit.
case ${1?"$option option requires an argument"} in
(*\'*)
optarg=" '"$(printf '%sX\n' "$1" | sed "$escape");;