@xogeny/mat-parser/lib/src/parser/types.js

A parser for MATLAB v4 files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var DataFormat;
(function (DataFormat) {
    DataFormat[DataFormat["Float64"] = 0] = "Float64";
    DataFormat[DataFormat["Float32"] = 1] = "Float32";
    DataFormat[DataFormat["Int32"] = 2] = "Int32";
    DataFormat[DataFormat["Int16"] = 3] = "Int16";
    DataFormat[DataFormat["UInt16"] = 4] = "UInt16";
    DataFormat[DataFormat["UInt8"] = 5] = "UInt8";
})(DataFormat = exports.DataFormat || (exports.DataFormat = {}));
function dataSize(format, n) {
    switch (format) {
        case DataFormat.Float64:
            return 8 * n;
        case DataFormat.Float32:
            return 4 * n;
        case DataFormat.Int32:
            return 4 * n;
        case DataFormat.Int16:
            return 2 * n;
        case DataFormat.UInt16:
            return 2 * n;
        case DataFormat.UInt8:
            return 1 * n;
        default:
            throw new Error("Unknown data format: " + format);
    }
}
exports.dataSize = dataSize;
function readOne(info, format, buffer) {
    switch (format) {
        case DataFormat.Float64:
            info.push(buffer.readDoubleLE(0));
            break;
        case DataFormat.Float32:
            info.push(buffer.readFloatLE(0));
            break;
        case DataFormat.Int32:
            info.push(buffer.readInt32LE(0));
            break;
        case DataFormat.Int16:
            info.push(buffer.readInt16LE(0));
            break;
        case DataFormat.UInt16:
            info.push(buffer.readUInt16LE(0));
            break;
        case DataFormat.UInt8:
            info.push(buffer.readUInt8(0));
            break;
        default:
            throw new Error("Uknown DataFormat value: " + format);
    }
    return buffer.slice(dataSize(format, 1));
}
exports.readOne = readOne;
var MatrixType;
(function (MatrixType) {
    MatrixType[MatrixType["FullNumeric"] = 0] = "FullNumeric";
    MatrixType[MatrixType["SparseNumeric"] = 1] = "SparseNumeric";
    MatrixType[MatrixType["Text"] = 2] = "Text";
})(MatrixType = exports.MatrixType || (exports.MatrixType = {}));
function dataType(n) {
    if (n == "0")
        return DataFormat.Float64;
    if (n == "1")
        return DataFormat.Float32;
    if (n == "2")
        return DataFormat.Int32;
    if (n == "3")
        return DataFormat.Int16;
    if (n == "4")
        return DataFormat.UInt16;
    if (n == "5")
        return DataFormat.UInt8;
    throw new Error("Invalid data type '" + n + "'");
}
exports.dataType = dataType;
function matrixType(n) {
    if (n == "0")
        return MatrixType.FullNumeric;
    if (n == "1")
        return MatrixType.Text;
    if (n == "2")
        return MatrixType.SparseNumeric;
    throw new Error("Invalid matrix type '" + n + "'");
}
exports.matrixType = matrixType;
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