# bash completion for perl -*- shell-script -*-

_perlmodules()
{
COMPREPLY=( $( compgen -P "$prefix" -W \
"$( ${1:-perl} ${BASH_SOURCE[0]%/*}/../helpers/perl modules $cur )" \
-- "$cur" ) )
__ltrim_colon_completions "$prefix$cur"
}

_perlfunctions()
{
COMPREPLY=( $( compgen -P "$prefix" -W \
"$( ${1:-perl} ${BASH_SOURCE[0]%/*}/../helpers/perl functions $cur )" \
-- "$cur" ) )
}

_perl()
{
local cur prev words cword
_init_completion -n : || return

local prefix="" temp optPrefix optSuffix

# If option not followed by whitespace, reassign prev and cur
if [[ "$cur" == -?* ]]; then
temp=$cur
prev=${temp:0:2}
cur=${temp:2}
optPrefix=-P$prev
optSuffix=-S/
prefix=$prev
fi

case $prev in
-D|-e|-E|-i|-F|-l)
return 0
;;
-I|-x)
local IFS=$'\n'
compopt -o filenames
COMPREPLY=( $( compgen -d $optPrefix $optSuffix -- "$cur" ) )
return 0
;;
-m|-M)
temp="${cur#-}"
prefix+="${cur%$temp}"
cur="$temp"
_perlmodules $1
return 0
;;
-V)
if [[ $cur == :* ]]; then
temp="${cur##+(:)}"
prefix+="${cur%$temp}"
local IFS=$'\n'
COMPREPLY=( $( compgen -P "$prefix" -W \
'$( $1 -MConfig -e "print join \"\\n\",
keys %Config::Config" 2>/dev/null )' -- "$temp" ) )
__ltrim_colon_completions "$prefix$temp"
fi
return 0
;;
-d|-dt)
if [[ $cur == :* ]]; then
temp="${cur#:}"
prefix="$prefix${cur%$temp}"
cur="Devel::$temp"
_perlmodules $1
fi
return 0
;;
esac

if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '-C -s -T -u -U -W -X -h -v -V -c -w -d -D -p
-n -a -F -l -0 -I -m -M -P -S -x -i -e' -- "$cur" ) )
else
_filedir
fi
} &&
complete -F _perl perl

_perldoc()
{
local cur prev words cword
_init_completion -n : || return

local prefix="" temp

# completing an option (may or may not be separated by a space)
if [[ "$cur" == -?* ]]; then
temp=$cur
prev=${temp:0:2}
cur=${temp:2}
prefix=$prev
fi

local perl="${1%doc}"
[[ $perl == $1 ]] || ! type $perl &>/dev/null && perl=

case $prev in
-h|-V|-n|-o|-M|-w|-L)
return 0
;;
-d)
_filedir
return 0
;;
-f)
_perlfunctions $perl
return 0
;;
esac

if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '$( _parse_help "$1" -h )' -- "$cur" ) )
else
# return available modules (unless it is clearly a file)
if [[ "$cur" != @(*/|[.~])* ]]; then
_perlmodules $perl
if [[ $cur == p* ]]; then
COMPREPLY+=( $( compgen -W \
'$( PERLDOC_PAGER=/bin/cat "$1" -u perl | \
sed -ne "/perl.*Perl overview/,/perlwin32/p" | \
awk "\$NF=2 && \$1 ~ /^perl/ { print \$1 }" )' \
-- "$cur" ) )
fi
fi
_filedir 'p@(l|m|od)'
fi
} &&
complete -F _perldoc -o bashdefault perldoc

# ex: ts=4 sw=4 et filetype=sh