filetype: dot

detect:
    filename: "\\.(dot|gv)$"

rules:
    - type:   "\\b(digraph|edge|graph|node|subgraph)\\b"
    - statement: "\\b(arrow(head|size|tail)|(bg|fill|font)?color|center|constraint|decorateP|dir|distortion|font(name|size)|head(clip|label)|height|label(angle|distance|font(color|name|size))?|layer(s)?|margin|mclimit|minlen|name|nodesep|nslimit|ordering|orientation|page(dir)?|peripheries|port_label_distance|rank(dir|sep)?|ratio|regular|rotate|same(head|tail)|shape(file)?|sides|size|skew|style|tail(clip|label)|URL|weight|width)\\b"
    - symbol:  "=|->|--"

    - constant.string:
        start: "\""
        end: "\""
        skip: "\\\\."
        rules:
            - constant.specialChar: "\\\\."

    - comment:
        start: "//"
        end: "$"
        rules:
            - todo: "(TODO|XXX|FIXME):?"

    - comment:
        start: "/\\*"
        end: "\\*/"
        rules:
            - todo: "(TODO|XXX|FIXME):?"