89 lines
2.2 KiB
Bash
89 lines
2.2 KiB
Bash
# goto completion -*- shell-script -*-
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_comp_cmd_goto() {
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local cur prev words cword comp_args
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_comp_initialize -- "$@" || return
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# the list of valid options with their argument requirement
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# it is updated as the command is parsed
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local -A valid_opts=([-a]=true [-r]=true [-g]=true [-e]=false [-l]=false [-t]=false)
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# how many positional arguments are expected
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local -i expected_positional_args=1
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# optionals and positionals read up to, not including ${cword} (current word index)
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local -i opt_args=0 positional_args=0
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# holds an option that requires its argument to be read next
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local expected_optarg
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local i word
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for (( i = 1; i < cword; i++ )); do
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word="${words[${i}]}"
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if [[ "${word:0:1}" == '-' ]]; then # reading an option
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# any option is invalid if...
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if \
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(( positional_args > 0 )) || # a positional parameter has been specified \
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[[ -n "${expected_optarg}" ]] || # a previous option is expecting an argument \
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! [[ -v valid_opts["${word}"] ]] # the option is invalid given the previously provided ones \
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then
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return
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fi
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local arg_required=${valid_opts["${word}"]}
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case "${word:1}" in
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a|r)
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unset -v 'valid_opts[-g]' 'valid_opts[-e]' 'valid_opts[-l]' 'valid_opts[-t]'
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;;
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g|e|l|t)
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valid_opts=()
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;;
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*)
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return
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;;
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esac
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if ${arg_required}; then
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expected_optarg="${word}"
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else
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expected_optarg=
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fi
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expected_positional_args=0
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(( opt_args++ ))
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elif [[ -n "${expected_optarg}" ]]; then
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expected_optarg=
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else
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(( positional_args++ ))
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if (( positional_args > expected_positional_args )); then
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return
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fi
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fi
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done
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if [[ "${cur:0:1}" == '-' ]]; then
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if [[ -z "${expected_optarg}" ]] && (( positional_args == 0 )); then
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_comp_compgen -- -W '"${!valid_opts[@]}"'
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fi
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return
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fi
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if [[ "${prev:0:1}" == '-' ]]; then
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case "${prev:1}" in
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r|g)
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__goto_comp_keys
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;;
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esac
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return
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fi
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if (( opt_args == 0 && positional_args == 0 )); then
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__goto_comp_keys
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fi
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} &&
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complete -F _comp_cmd_goto goto
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# ex: filetype=sh
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