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name : valgrind
 # valgrind(1) completion                                   -*- shell-script -*-

_valgrind()
{
    local cur prev words cword split
    _init_completion -s || return

    local i
    # Note: intentionally using COMP_WORDS and COMP_CWORD instead of
    # words and cword here due to splitting on = causing index differences
    # (_command_offset assumes the former).
    for ((i = 1; i <= COMP_CWORD; i++)); do
        if [[ ${COMP_WORDS[i]} != @([-=])* && ${COMP_WORDS[i - 1]} != = ]]; then
            _command_offset $i
            return
        fi
    done

    local word tool
    for word in "${words[@]:1}"; do
        if [[ $word == --tool=?* ]]; then
            tool=$word
            break
        fi
    done

    case $prev in
        -h | --help | --help-debug | --version)
            return
            ;;
        --tool)
            # Tools seem to be named e.g. like memcheck-amd64-linux from which
            # we want to grab memcheck.
            COMPREPLY=($(compgen -W '$(
                for f in /usr{,/local}/lib{,64,exec}{/*-linux-gnu,}/valgrind/*
                do
                    [[ $f != *.so && -x $f && $f =~ ^.*/(.*)-[^-]+-[^-]+ ]] &&
                        printf "%s\n" "${BASH_REMATCH[1]}"
                done)' -- "$cur"))
            return
            ;;
        --sim-hints)
            COMPREPLY=($(compgen -W 'lax-ioctls enable-outer' -- "$cur"))
            return
            ;;
        --soname-synonyms)
            COMPREPLY=($(compgen -W 'somalloc' -S = -- "$cur"))
            [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
            return
            ;;
        --kernel-variant)
            COMPREPLY=($(compgen -W 'bproc' -- "$cur"))
            return
            ;;
        # callgrind:
        --callgrind-out-file)
            _filedir
            return
            ;;
        # exp-dhat:
        --sort-by)
            COMPREPLY=($(compgen -W 'max-bytes-live tot-bytes-allocd
                max-blocks-live' -- "$cur"))
            return
            ;;
        # massif:
        --time-unit)
            COMPREPLY=($(compgen -W 'i ms B' -- "$cur"))
            return
            ;;
            # generic cases parsed from --help output
        --+([-A-Za-z0-9_]))
            local value=$($1 --help-debug ${tool-} 2>/dev/null |
                command sed -ne "s|^[[:blank:]]*$prev=\([^[:blank:]]\{1,\}\).*|\1|p")
            case $value in
                \<file*\>)
                    _filedir
                    return
                    ;;
                \<command\>)
                    compopt -o filenames
                    COMPREPLY=($(compgen -c -- "$cur"))
                    return
                    ;;
                \<+([0-9])..+([0-9])\>)
                    COMPREPLY=($(compgen -W "{${value:1:${#value}-2}}" \
                        -- "$cur"))
                    return
                    ;;
                # "yes", "yes|no", etc (but not "string", "STR",
                # "hint1,hint2,...")
                yes | +([-a-z0-9])\|+([-a-z0-9\|]))
                    COMPREPLY=($(IFS='|' compgen -W '$value' -- "$cur"))
                    return
                    ;;
            esac
            ;;
    esac

    $split && return

    if [[ $cur == -* ]]; then
        COMPREPLY=($(compgen -W '$(_parse_help "$1" "--help ${tool-}")' \
            -- "$cur"))
        [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
        return
    fi
} &&
    complete -F _valgrind valgrind

# ex: filetype=sh
UnknownSec Shell
