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0486c8c3af
We have a regex that needs to match a tab character in the command output, but on macOS sed doesn't support '\t', causing it to split on the 't' character instead. Fix by having bash expand the \t first. llvm-svn: 333202
66 lines
2.2 KiB
Bash
66 lines
2.2 KiB
Bash
# Please add "source /path/to/bash-autocomplete.sh" to your .bashrc to use this.
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_clang_filedir()
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{
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# _filedir function provided by recent versions of bash-completion package is
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# better than "compgen -f" because the former honors spaces in pathnames while
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# the latter doesn't. So we use compgen only when _filedir is not provided.
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_filedir 2> /dev/null || COMPREPLY=( $( compgen -f ) )
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}
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_clang()
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{
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local cur prev words cword arg flags w1 w2
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# If latest bash-completion is not supported just initialize COMPREPLY and
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# initialize variables by setting manually.
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_init_completion -n 2> /dev/null
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if [[ "$?" != 0 ]]; then
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COMPREPLY=()
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cword=$COMP_CWORD
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cur="${COMP_WORDS[$cword]}"
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fi
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w1="${COMP_WORDS[$cword - 1]}"
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if [[ $cword > 1 ]]; then
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w2="${COMP_WORDS[$cword - 2]}"
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fi
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# Pass all the current command-line flags to clang, so that clang can handle
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# these internally.
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# '=' is separated differently by bash, so we have to concat them without ','
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for i in `seq 1 $cword`; do
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if [[ $i == $cword || "${COMP_WORDS[$(($i+1))]}" == '=' ]]; then
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arg="$arg${COMP_WORDS[$i]}"
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else
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arg="$arg${COMP_WORDS[$i]},"
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fi
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done
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# expand ~ to $HOME
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eval local path=${COMP_WORDS[0]}
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# Use $'\t' so that bash expands the \t for older versions of sed.
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flags=$( "$path" --autocomplete="$arg" 2>/dev/null | sed -e $'s/\t.*//' )
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# If clang is old that it does not support --autocomplete,
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# fall back to the filename completion.
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if [[ "$?" != 0 ]]; then
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_clang_filedir
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return
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fi
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# When clang does not emit any possible autocompletion, or user pushed tab after " ",
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# just autocomplete files.
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if [[ "$flags" == "$(echo -e '\n')" ]]; then
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# If -foo=<tab> and there was no possible values, autocomplete files.
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[[ "$cur" == '=' || "$cur" == -*= ]] && cur=""
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_clang_filedir
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elif [[ "$cur" == '=' ]]; then
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COMPREPLY=( $( compgen -W "$flags" -- "") )
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else
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# Bash automatically appends a space after '=' by default.
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# Disable it so that it works nicely for options in the form of -foo=bar.
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[[ "${flags: -1}" == '=' ]] && compopt -o nospace 2> /dev/null
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COMPREPLY=( $( compgen -W "$flags" -- "$cur" ) )
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fi
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}
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complete -F _clang clang
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