fundle.fish

function __fundle_next_arg -a index
	set -l args $argv[2..-1]
	set -l arg_index (math $index + 1)
	if test (count $args) -lt $arg_index
		echo "missing argument for $args[$index]"
		return 1
	end
	set -l arg $args[$arg_index]
	switch $arg
		case '--*'
			echo "expected argument for $args[$index], got $arg"; and return 1
		case '*'
			echo $arg; and return 0
	end
end


# in __fundle_plugin
		set -l skip_next true
		for i in (__fundle_seq (count $argv))
			test $skip_next = true; and set skip_next false; and continue
			set -l arg $argv[$i]
			switch $arg
				case '--url'
					set plugin_url (__fundle_next_arg $i $argv)
					test $status -eq 1; and echo $plugin_url; and return 1
					set skip_next true
				case '--path'
					set plugin_path (__fundle_next_arg $i $argv)
					test $status -eq 1; and echo $plugin_path; and return 1
					set skip_next true
				case '--*'
					echo "unknown flag $arg"; and return 1
				case '*'
					test $i -ne 2; and echo "invalid argument $arg"; and return 1
					set plugin_url $arg
			end
		end