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#compdef Start Restart Stop Reload
## vim:ft=zsh

typeset arguments file bang
typeset action=${service:l}
typeset what='(st(art|op|atus)|(force-|)re(start|load)|debug_(up|down)|dump(|_stats)|add|delete|clean|list)'
typeset -a scripts

# Most of the loop's content has been taken from the _init_d
# completion function provided with zsh
for file in /etc/init.d/*(*); {
	read -u0 -k2 bang < $file && [[ $bang == '#!' ]] &&
	[[ ${${(j:|:s:|:)${(M)${(f)"$(< $file)"}:#[[:blank:]]#(\'|)${~what}([[:blank:]]#\|[[:blank:]]#${~what})#(\'|)\)}}//[^-a-z_]} == *$action* ]] &&
	scripts+=${file##*/}
}

_wanted script expl script compadd $scripts