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#compdef _arguments
# Dear reader: This function is called "__arguments" and is the completion
# function for the completion function _arguments. This function, however, is
# not the completion function _arguments. If you're looking for the function
# _arguments, then you've come to the wrong place.
#
# _arguments is a completion utility function. It is called by completion
# functions for command-line tools.
#
# __arguments is a completion function for _arguments. It runs when one does
# `_arguments -<TAB>' at the shell prompt to jog one's memory about _arguments'
# option flags.
#
# _arguments is in documented in the manual. If you were looking for its
# source code, that'd be either in ../../../Completion/Base/Utility/_arguments
# or in ./_arguments, depending on where you're reading this file.
#
# __arguments takes no arguments.
if (( ${words[(i)--]} < CURRENT )); then
# "Deriving spec forms from the help output"
_arguments : \
'*-i[specify option name exclude patterns]:option name exclude pattern' \
'*-s[specify option aliases]:pattern and replacement as "(this that)"' \
'*:helpspec (pattern\:message\:action)'
else
_arguments -A '-([AMO]*|[0CRSWnsw])' : \
'!-n[set $NORMARG]' \
'-s[enable single-letter option stacking (-x -y == -xy)]' \
'-w[(rarely needed) enable single-letter option stacking with arguments (-x X -y == -xy X)]' \
'-W[(rarely needed) enable single-letter option stacking with arguments in the same word (-x X -y == -xXy)]' \
"-C[modify \$curcontext for \`->action' (instead of \$context)]" \
"-R[when \`->action' matches, return 300]" \
"-S[honour \`--' as end-of-options guard]" \
"-A[do not complete options after non-options]:pattern matching unknown options (e.g., '-*')" \
'-O[pass elements of array variable to function calls in actions]:array variable name:_parameters -g array' \
"-M[specify matchspec for completing option names and values]:matchspec for completing option names and values [ 'r\\:|[_-]=* r\\:|=*' ]" \
'-0[have ${(v)opt_args} be NUL-joined rather than colon-escaped and colon-joined]' \
"--[derive optspecs from \`\${command} --help' output]" \
'1::optional delimiter:(\:)' \
'*:spec (e.g., "(-t --to)"*{-t+,--to=}"[specify recipient]\:recipient'\''s address\:_email_addresses)'
# TODO: doesn't support "Specifying Multiple Sets of Arguments"
fi
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