fish(completion): support dot command (WIP)

share/completions/dot.fish

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+set -l command dot
+
+complete -c $command -f
+
+complete -c $command -s '?' -d 'Show help'
+
+for version_option in v V
+    complete -c $command -s $version_option -d 'Show version'
+end
+
+set -l graph_attributes = _background \
+    bb \
+    'beautify true false' \
+    bgcolor \
+    'center true false' \
+    'charset utf-8 utf8 iso-8859-1 ISO_8859-1 ISO8859-1 ISO-IR-100 Latin1 l1 latin-1 big-5 big5' \
+    class \
+    'clusterrank global local none' \
+    colorscheme \
+    comment \
+    'compound true false' \
+    'concentrate true false' \
+    'Damping 0.99' \
+    defaultdist \
+    'dim 2' \
+    'dimen 2' \
+    'diredgeconstraints hier false' \
+    'dpi 96.0,0.0' \
+    epsilon \
+    'esep +3' \
+    "fontcolor $(string join ' ' -- (__fish_graphviz__print_colors))" \
+    fontname \
+    'fontnames svg' \
+    fontpath \
+    'fontsize 14.0' \
+    'forcelabels true false' \
+    'gradientangle 0' \
+    href \
+    id \
+    imagepath \
+    inputscale \
+    K \
+    label \
+    label_scheme \
+    labeljust \
+    labelloc \
+    landscape \
+    layerlistsep \
+    layers \
+    layerselect \
+    layersep \
+    layout \
+    levels \
+    levelsgap \
+    lheight \
+    linelength \
+    lp \
+    lwidth \
+    margin \
+    maxiter \
+    mclimit \
+    mindist \
+    mode \
+    model \
+    newrank \
+    nodesep \
+    nojustify \
+    normalize \
+    notranslate \
+    nslimit \
+    nslimit1 \
+    oneblock \
+    ordering \
+    orientation \
+    outputorder \
+    overlap \
+    overlap_scaling \
+    overlap_shrink \
+    pack \
+    packmode \
+    pad \
+    page \
+    pagedir \
+    quadtree \
+    quantum \
+    rankdir \
+    ranksep \
+    ratio \
+    remincross \
+    repulsiveforce \
+    resolution \
+    root \
+    rotate \
+    rotation \
+    scale \
+    searchsize \
+    sep \
+    showboxes \
+    size \
+    smoothing \
+    sortv \
+    splines \
+    start \
+    style \
+    stylesheet \
+    target \
+    TBbalance \
+    tooltip \
+    truecolor \
+    URL \
+    viewport \
+    voro_margin \
+    xdotversion
+
+set -l edge_attributes area \
+    class \
+    color \
+    colorscheme \
+    comment \
+    distortion \
+    fillcolor \
+    fixedsize \
+    fontcolor \
+    fontname \
+    fontsize \
+    gradientangle \
+    group \
+    height \
+    href \
+    id \
+    image \
+    imagepos \
+    imagescale \
+    label \
+    labelloc \
+    layer \
+    margin \
+    nojustify \
+    ordering \
+    orientation \
+    penwidth \
+    peripheries \
+    pin \
+    pos \
+    rects \
+    regular \
+    root \
+    samplepoints \
+    shape \
+    shapefile \
+    showboxes \
+    sides \
+    skew \
+    sortv \
+    style \
+    target \
+    tooltip \
+    URL \
+    vertices \
+    width \
+    xlabel \
+    xlp \
+    z
+
+set -l node_attributes area \
+    class \
+    color \
+    colorscheme \
+    comment \
+    distortion \
+    fillcolor \
+    fixedsize \
+    fontcolor \
+    fontname \
+    fontsize \
+    gradientangle \
+    group \
+    height \
+    href \
+    id \
+    image \
+    imagepos \
+    imagescale \
+    label \
+    labelloc \
+    layer \
+    margin \
+    nojustify \
+    ordering \
+    orientation \
+    penwidth \
+    peripheries \
+    pin \
+    pos \
+    rects \
+    regular \
+    root \
+    samplepoints \
+    shape \
+    shapefile \
+    showboxes \
+    sides \
+    skew \
+    sortv \
+    style \
+    target \
+    tooltip \
+    URL \
+    vertices \
+    width \
+    xlabel \
+    xlp \
+    z
+
+complete -c $command \
+    -a '(__fish_complete_key_value_pairs $graph_attributes)' \
+    -d 'Specify a graph option'
+
+complete -c $command \
+    -a '(__fish_complete_key_value_pairs $edge_attributes)' \
+    -d 'Specify an edge option'
+
+complete -c $command \
+    -a '(__fish_complete_key_value_pairs $node_attributes)' \
+    -d 'Specify a node option'
+
+## 
+__fish_complete_key_value_pairs = "type executable library" "id first second"
+
+complete --erase true
+complete -c true -s o -l option -r \
+    -a '(__fish_complete_key_value_pairs = "type executable library" "id first second")' \
+    -d 'Some description'

share/functions/__fish_complete_key_value_pairs.fish

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+# Usage: __fish_complete_key_value_pairs key_value_pair_delimiter key_with_values1 key_with_values2 ...
+# Example: __fish_complete_key_value_pairs = "type executable library"
+function __fish_complete_key_value_pairs \
+    --description 'Suggest provided options and their values as $argv where each except first argument is an option and space separated option values'
+
+    set token (commandline -c -t)
+    set delimiter $argv[1]
+    set keys $argv[2..]
+    set values $keys
+
+    set token (string replace --regex "^--?\w+$delimiter" '' -- $token)
+
+    for index in (seq (count $keys))
+        set definition $keys[$index]
+        set keys[$index] (string match --regex '^\w+' -- $definition)
+
+        if string match --quiet --regex '^\w+\s+' -- $definition
+            set values[$index] (string replace --regex '^\w+\s+' '' -- $definition)
+        else
+            set values[$index] ""
+        end
+    end
+
+    set token (string replace --regex "$delimiter.*\$" '' -- $token)
+
+    if set index (contains --index -- "$token" $keys)
+        for value in (string split " " $values[$index])
+            printf '%s%s%s\n' $token $delimiter $value
+        end
+    else
+        for key in (string split " " $keys)
+            printf '%s%s\n' $key $delimiter
+        end
+    end
+end

share/functions/__fish_graphviz__print_colors.fish

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+function __fish_graphviz__print_colors
+    begin
+        __fish_graphviz__print_x11_colors
+        __fish_graphviz__print_svg_colors
+    end | sort | uniq
+end

share/functions/__fish_graphviz__print_svg_colors.fish

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+function __fish_graphviz__print_svg_colors
+    set colors aliceblue antiquewhite aqua aquamarine azure \
+        beige bisque black blanchedalmond blue \
+        blueviolet brown burlywood cadetblue chartreuse \
+        chocolate coral cornflowerblue cornsilk crimson \
+        cyan darkblue darkcyan darkgoldenrod darkgray \
+        darkgreen darkgrey darkkhaki darkmagenta darkolivegreen \
+        darkorange darkorchid darkred darksalmon darkseagreen \
+        darkslateblue darkslategray darkslategrey darkturquoise darkviolet \
+        deeppink deepskyblue dimgray dimgrey dodgerblue \
+        firebrick floralwhite forestgreen fuchsia gainsboro \
+        ghostwhite gold goldenrod gray grey \
+        green greenyellow honeydew hotpink indianred \
+        indigo ivory khaki lavender lavenderblush \
+        lawngreen lemonchiffon lightblue lightcoral lightcyan \
+        lightgoldenrodyellow lightgray lightgreen lightgrey lightpink \
+        lightsalmon lightseagreen lightskyblue lightslategray lightslategrey \
+        lightsteelblue lightyellow lime limegreen linen \
+        magenta maroon mediumaquamarine mediumblue mediumorchid \
+        mediumpurple mediumseagreen mediumslateblue mediumspringgreen mediumturquoise \
+        mediumvioletred midnightblue mintcream mistyrose moccasin \
+        navajowhite navy oldlace olive olivedrab \
+        orange orangered orchid palegoldenrod palegreen \
+        paleturquoise palevioletred papayawhip peachpuff peru \
+        pink plum powderblue purple red \
+        rosybrown royalblue saddlebrown salmon sandybrown \
+        seagreen seashell sienna silver skyblue \
+        slateblue slategray slategrey snow springgreen \
+        steelblue tan teal thistle tomato \
+        turquoise violet wheat white whitesmoke \
+        yellow yellowgreen
+
+    string join \n -- $colors
+end

share/functions/__fish_graphviz__print_x11_colors.fish

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+function __fish_graphviz__print_x11_colors
+    set colors aliceblue antiquewhite antiquewhite1 antiquewhite2 antiquewhite3 \
+        antiquewhite4 aqua aquamarine aquamarine1 aquamarine2 \
+        aquamarine3 aquamarine4 azure azure1 azure2 \
+        azure3 azure4 beige bisque bisque1 \
+        bisque2 bisque3 bisque4 black blanchedalmond \
+        blue blue1 blue2 blue3 blue4 \
+        blueviolet brown brown1 brown2 brown3 \
+        brown4 burlywood burlywood1 burlywood2 burlywood3 \
+        burlywood4 cadetblue cadetblue1 cadetblue2 cadetblue3 \
+        cadetblue4 chartreuse chartreuse1 chartreuse2 chartreuse3 \
+        chartreuse4 chocolate chocolate1 chocolate2 chocolate3 \
+        chocolate4 coral coral1 coral2 coral3 \
+        coral4 cornflowerblue cornsilk cornsilk1 cornsilk2 \
+        cornsilk3 cornsilk4 crimson cyan cyan1 \
+        cyan2 cyan3 cyan4 darkblue darkcyan \
+        darkgoldenrod darkgoldenrod1 darkgoldenrod2 darkgoldenrod3 darkgoldenrod4 \
+        darkgray darkgreen darkgrey darkkhaki darkmagenta \
+        darkolivegreen darkolivegreen1 darkolivegreen2 darkolivegreen3 darkolivegreen4 \
+        darkorange darkorange1 darkorange2 darkorange3 darkorange4 \
+        darkorchid darkorchid1 darkorchid2 darkorchid3 darkorchid4 \
+        darkred darksalmon darkseagreen darkseagreen1 darkseagreen2 \
+        darkseagreen3 darkseagreen4 darkslateblue darkslategray darkslategray1 \
+        darkslategray2 darkslategray3 darkslategray4 darkslategrey darkturquoise \
+        darkviolet deeppink deeppink1 deeppink2 deeppink3 \
+        deeppink4 deepskyblue deepskyblue1 deepskyblue2 deepskyblue3 \
+        deepskyblue4 dimgray dimgrey dodgerblue dodgerblue1 \
+        dodgerblue2 dodgerblue3 dodgerblue4 firebrick firebrick1 \
+        firebrick2 firebrick3 firebrick4 floralwhite forestgreen \
+        fuchsia gainsboro ghostwhite gold gold1 \
+        gold2 gold3 gold4 goldenrod goldenrod1 \
+        goldenrod2 goldenrod3 goldenrod4 gray gray0 \
+        gray1 gray10 gray100 gray11 gray12 \
+        gray13 gray14 gray15 gray16 gray17 \
+        gray18 gray19 gray2 gray20 gray21 \
+        gray22 gray23 gray24 gray25 gray26 \
+        gray27 gray28 gray29 gray3 gray30 \
+        gray31 gray32 gray33 gray34 gray35 \
+        gray36 gray37 gray38 gray39 gray4 \
+        gray40 gray41 gray42 gray43 gray44 \
+        gray45 gray46 gray47 gray48 gray49 \
+        gray5 gray50 gray51 gray52 gray53 \
+        gray54 gray55 gray56 gray57 gray58 \
+        gray59 gray6 gray60 gray61 gray62 \
+        gray63 gray64 gray65 gray66 gray67 \
+        gray68 gray69 gray7 gray70 gray71 \
+        gray72 gray73 gray74 gray75 gray76 \
+        gray77 gray78 gray79 gray8 gray80 \
+        gray81 gray82 gray83 gray84 gray85 \
+        gray86 gray87 gray88 gray89 gray9 \
+        gray90 gray91 gray92 gray93 gray94 \
+        gray95 gray96 gray97 gray98 gray99 \
+        green green1 green2 green3 green4 \
+        greenyellow grey grey0 grey1 grey10 \
+        grey100 grey11 grey12 grey13 grey14 \
+        grey15 grey16 grey17 grey18 grey19 \
+        grey2 grey20 grey21 grey22 grey23 \
+        grey24 grey25 grey26 grey27 grey28 \
+        grey29 grey3 grey30 grey31 grey32 \
+        grey33 grey34 grey35 grey36 grey37 \
+        grey38 grey39 grey4 grey40 grey41 \
+        grey42 grey43 grey44 grey45 grey46 \
+        grey47 grey48 grey49 grey5 grey50 \
+        grey51 grey52 grey53 grey54 grey55 \
+        grey56 grey57 grey58 grey59 grey6 \
+        grey60 grey61 grey62 grey63 grey64 \
+        grey65 grey66 grey67 grey68 grey69 \
+        grey7 grey70 grey71 grey72 grey73 \
+        grey74 grey75 grey76 grey77 grey78 \
+        grey79 grey8 grey80 grey81 grey82 \
+        grey83 grey84 grey85 grey86 grey87 \
+        grey88 grey89 grey9 grey90 grey91 \
+        grey92 grey93 grey94 grey95 grey96 \
+        grey97 grey98 grey99 honeydew honeydew1 \
+        honeydew2 honeydew3 honeydew4 hotpink hotpink1 \
+        hotpink2 hotpink3 hotpink4 indianred indianred1 \
+        indianred2 indianred3 indianred4 indigo invis \
+        ivory ivory1 ivory2 ivory3 ivory4 \
+        khaki khaki1 khaki2 khaki3 khaki4 \
+        lavender lavenderblush lavenderblush1 lavenderblush2 lavenderblush3 \
+        lavenderblush4 lawngreen lemonchiffon lemonchiffon1 lemonchiffon2 \
+        lemonchiffon3 lemonchiffon4 lightblue lightblue1 lightblue2 \
+        lightblue3 lightblue4 lightcoral lightcyan lightcyan1 \
+        lightcyan2 lightcyan3 lightcyan4 lightgoldenrod lightgoldenrod1 \
+        lightgoldenrod2 lightgoldenrod3 lightgoldenrod4 lightgoldenrodyellow lightgray \
+        lightgreen lightgrey lightpink lightpink1 lightpink2 \
+        lightpink3 lightpink4 lightsalmon lightsalmon1 lightsalmon2 \
+        lightsalmon3 lightsalmon4 lightseagreen lightskyblue lightskyblue1 \
+        lightskyblue2 lightskyblue3 lightskyblue4 lightslateblue lightslategray \
+        lightslategrey lightsteelblue lightsteelblue1 lightsteelblue2 lightsteelblue3 \
+        lightsteelblue4 lightyellow lightyellow1 lightyellow2 lightyellow3 \
+        lightyellow4 lime limegreen linen magenta \
+        magenta1 magenta2 magenta3 magenta4 maroon \
+        maroon1 maroon2 maroon3 maroon4 mediumaquamarine \
+        mediumblue mediumorchid mediumorchid1 mediumorchid2 mediumorchid3 \
+        mediumorchid4 mediumpurple mediumpurple1 mediumpurple2 mediumpurple3 \
+        mediumpurple4 mediumseagreen mediumslateblue mediumspringgreen mediumturquoise \
+        mediumvioletred midnightblue mintcream mistyrose mistyrose1 \
+        mistyrose2 mistyrose3 mistyrose4 moccasin navajowhite \
+        navajowhite1 navajowhite2 navajowhite3 navajowhite4 navy \
+        navyblue none oldlace olive olivedrab \
+        olivedrab1 olivedrab2 olivedrab3 olivedrab4 orange \
+        orange1 orange2 orange3 orange4 orangered \
+        orangered1 orangered2 orangered3 orangered4 orchid \
+        orchid1 orchid2 orchid3 orchid4 palegoldenrod \
+        palegreen palegreen1 palegreen2 palegreen3 palegreen4 \
+        paleturquoise paleturquoise1 paleturquoise2 paleturquoise3 paleturquoise4 \
+        palevioletred palevioletred1 palevioletred2 palevioletred3 palevioletred4 \
+        papayawhip peachpuff peachpuff1 peachpuff2 peachpuff3 \
+        peachpuff4 peru pink pink1 pink2 \
+        pink3 pink4 plum plum1 plum2 \
+        plum3 plum4 powderblue purple purple1 \
+        purple2 purple3 purple4 rebeccapurple red \
+        red1 red2 red3 red4 rosybrown \
+        rosybrown1 rosybrown2 rosybrown3 rosybrown4 royalblue \
+        royalblue1 royalblue2 royalblue3 royalblue4 saddlebrown \
+        salmon salmon1 salmon2 salmon3 salmon4 \
+        sandybrown seagreen seagreen1 seagreen2 seagreen3 \
+        seagreen4 seashell seashell1 seashell2 seashell3 \
+        seashell4 sienna sienna1 sienna2 sienna3 \
+        sienna4 silver skyblue skyblue1 skyblue2 \
+        skyblue3 skyblue4 slateblue slateblue1 slateblue2 \
+        slateblue3 slateblue4 slategray slategray1 slategray2 \
+        slategray3 slategray4 slategrey snow snow1 \
+        snow2 snow3 snow4 springgreen springgreen1 \
+        springgreen2 springgreen3 springgreen4 steelblue steelblue1 \
+        steelblue2 steelblue3 steelblue4 tan tan1 \
+        tan2 tan3 tan4 teal thistle \
+        thistle1 thistle2 thistle3 thistle4 tomato \
+        tomato1 tomato2 tomato3 tomato4 transparent \
+        turquoise turquoise1 turquoise2 turquoise3 turquoise4 \
+        violet violetred violetred1 violetred2 violetred3 \
+        violetred4 webgray webgreen webgrey webmaroon \
+        webpurple wheat wheat1 wheat2 wheat3 \
+        wheat4 white whitesmoke x11gray x11green \
+        x11grey x11maroon x11purple yellow yellow1 \
+        yellow2 yellow3 yellow4 yellowgreen
+
+    string join \n -- $colors
+end