@yinyinfurong_zmr/dbc-can/lib/filesystem/DbcWebFs.js

A general purpose CAN (Controller Area Network) toolbox with support for .dbc file parsing, CAN message decoding, and more

/**
 * Utility function for unloading the raw contents of a DBC file into a string that can
 * then be passed to the .load function provided by the Dbc class.
 *
 * @param file File to unload
 * @param onLoad Optional callback function that can be provided that will be called after
 * file has been loaded. Function is provided the raw contents of the file so that it can be used
 * in the callback
 */
export const dbcReader = (file, onLoad) => {
    if (file.name.endsWith('.dbc')) {
        const reader = new FileReader();
        // Set the onload event handler
        reader.onload = (event) => {
            // Get the file contents
            if (event && event.target) {
                event.preventDefault();
                const fileContents = event.target.result;
                if (onLoad) {
                    onLoad(fileContents);
                }
            }
        };
        // Read the file contents
        return reader.readAsText(file);
    }
};
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