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    LineEnding

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    pub(all) enum LineEnding {
      LF
      CRLF
    } derive(Eq, 
    Debug    )

    Only standard line endings are emitted by the text writers.

    Location

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    pub(all) struct Location {
      format : 
    Format
      line : Int
      column_offset : Int
      record_type : Int?
    } derive(Eq, 
    Debug    )

    Context shared by the two record grammars. Locations use ASCII columns.

    Location::error

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    Construct a source-bound failure, retaining structured parser context.

    SourceLine

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    pub(all) struct SourceLine {
      text : String
      location : Location
    }

    Normalized line plus its original starting column after permissive trim.

    TextOutput

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    pub struct TextOutput {
      // private fields
    }

    Bounded text sink shared by format writers; never stores an array of lines.

    TextOutput::finish

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    fn TextOutput::finish(self : TextOutput) -> String

    Finish deterministic ASCII text after all record checks succeed.

    TextOutput::new

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    Validate output budget before allocation. The hard limit is 256 Mi characters.

    TextOutput::write_line

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    fn TextOutput::write_line(self : TextOutput, line : String) -> Unit raise 
    FirmwareError

    Check incremental encoded size before adding each bounded protocol record.

    address_bytes

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    fn address_bytes(value : Int64, width : Int) -> Bytes raise 
    FirmwareError

    Serialize only addresses representable in the requested width.

    decode_hex

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    fn decode_hex(text : String, start : Int, location : Location) -> Bytes raise 
    FirmwareError

    Decode an exact even number of digits, reporting the first bad column.

    encode_hex

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    fn encode_hex(bytes : Bytes, uppercase? : Bool) -> String

    Encode bytes as plain hexadecimal digits for record bodies and previews.

    for_each_line

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    Iterate bounded lines without splitting a large document into an array. Permissive mode accepts ASCII outer whitespace, blank/comment lines and BOM. Every tolerance creates a warning. LF and CRLF are supported in both modes.

    hex_digit

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    fn hex_digit(code : UInt16) -> Int?

    Decode one ASCII digit without locale or Unicode lookalike acceptance.

    locate_error

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    Reattach source context to an address or overlap failure from the model.

    parse_number

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    fn parse_number(text : String, max_value? : Int64) -> Int64 raise 
    FirmwareError

    Parse a decimal or 0x-prefixed unsigned address without overflow.

    read_address

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    fn read_address(bytes : Bytes, offset : Int, width : Int) -> Int64 raise 
    FirmwareError

    Decode a big-endian address of 1..4 bytes from a validated record.

    write_hex_byte

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    fn write_hex_byte(out : StringBuilder, byte : Byte, uppercase : Bool) -> Unit

    Append one encoded byte. The alphabet is shared; checksums are not.

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