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|
# ri completion for Ruby documentation -*- shell-script -*-
# by Ian Macdonald <ian@caliban.org>
# @var[in] ri_version
# @var[in] prefix
# @var[in] classes
_comp_cmd_ri__compgen_methods()
{
local _regex
local IFS=$' \t\n' # needed for ${classes[@]+"${classes[@]}"} in bash-5.2
local _methods
if [[ $ri_version == integrated ]]; then
if [[ ! $separator ]]; then
_regex="(Instance|Class)"
elif [[ $separator == "#" ]]; then
_regex=Instance
else
_regex=Class
fi
_comp_split -la _methods \
"$(ri ${classes[@]+"${classes[@]}"} 2>/dev/null | ruby -ane \
'if /^'"$_regex"' methods:/.../^------------------|^$/ and \
/^ / then print $_.split(/, |,$/).grep(/^[^\[]*$/).join("\n"); \
end' 2>/dev/null | sort -u)"
else
# older versions of ri didn't distinguish between class/module and
# instance methods
_comp_split -la _methods \
"$(ruby -W0 "$ri_path" ${classes[@]+"${classes[@]}"} 2>/dev/null | ruby -ane \
'if /^-/.../^-/ and ! /^-/ and ! /^ +(class|module): / then \
print $_.split(/, |,$| +/).grep(/^[^\[]*$/).join("\n"); \
end' | sort -u)"
fi &&
_comp_compgen -- -P "$prefix" -W '"${_methods[@]}"'
}
# needs at least Ruby 1.8.0 in order to use -W0
_comp_cmd_ri()
{
local cur prev words cword was_split comp_args
_comp_initialize -s -n : -- "$@" || return
local noargopts='!(-*|*[wfd]*)'
# shellcheck disable=SC2254
case $prev in
--help | --width | -${noargopts}[hw])
return
;;
--format | -${noargopts}f)
_comp_compgen -- -W 'ansi bs html rdoc'
return
;;
--doc-dir | -${noargopts}d)
_comp_compgen_filedir -d
return
;;
--dump)
_comp_compgen_filedir ri
return
;;
esac
[[ $was_split ]] && return
if [[ $cur == -* ]]; then
_comp_compgen_help
[[ ${COMPREPLY-} == *= ]] && compopt -o nospace
return
fi
local class method prefix="" ri_path ri_version ri_major="" separator
local -a classes
ri_path=$(type -p ri)
# which version of ri are we using?
# -W0 is required here to stop warnings from older versions of ri
# from being captured when used with Ruby 1.8.1 and later
ri_version="$(ruby -W0 "$ri_path" -v 2>&1)" || ri_version=integrated
[[ $ri_version != "${ri_version%200*}" ]] && ri_version=integrated
[[ $ri_version =~ ri[[:space:]]v?([0-9]+) ]] && ri_major=${BASH_REMATCH[1]}
# need to also split on commas
if [[ $cur == [A-Z]*[#.]* ]]; then
[[ $cur == *#* ]] && separator=# || separator=.
# we're completing on class and method
class=${cur%"$separator"*}
method=${cur#*"$separator"}
_comp_split -F $', \n\t' classes "$class"
prefix=$class$separator
_comp_compgen -c "$method" -i ri methods
return
fi
if [[ $ri_version == integrated ]]; then
# integrated ri from Ruby 1.9
_comp_split -F $', \n\t' classes \
"$(ri -c 2>/dev/null | ruby -ne 'if /^\s*$/..$stdin.eof then \
if /^ +[A-Z]/ then print; end; end' 2>/dev/null)"
elif [[ $ri_major && $ri_major -ge 3 ]]; then
_comp_split -F $', \n\t' classes "$(ri -l 2>/dev/null)"
elif [[ $ri_version == "ri 1.8a" ]]; then
_comp_split -F $', \n\t' classes "$(ruby -W0 "$ri_path" |
ruby -ne 'if /^'"'"'ri'"'"' has/..$stdin.eof then \
if /^ .*[A-Z]/ then print; end; end')"
else
_comp_split -F $', \n\t' classes "$(ruby -W0 "$ri_path" |
ruby -ne 'if /^I have/..$stdin.eof then \
if /^ .*[A-Z]/ then print; end; end')"
fi &&
_comp_compgen -- -W '"${classes[@]}"'
_comp_ltrim_colon_completions "$cur"
if [[ $cur == [A-Z]* ]]; then
# we're completing on class or module alone
return
fi
# we're completing on methods
_comp_cmd_ri__compgen_methods
} &&
complete -F _comp_cmd_ri ri
# ex: filetype=sh
|
