I/O & Data Loading

/**
 * Load JSON data from file or URL
 * @param {string} path - Path to JSON file
 * @param {object} [jsonpOptions] - JSONP options for cross-domain requests
 * @param {string} [datatype] - Data type hint
 * @param {function} [callback] - Success callback
 * @param {function} [errorCallback] - Error callback
 * @returns {object} JSON data object
 */
function loadJSON(path, jsonpOptions, datatype, callback, errorCallback);

/**
 * Load text file as array of strings (one per line)
 * @param {string} filename - Path to text file
 * @param {function} [callback] - Success callback
 * @param {function} [errorCallback] - Error callback
 * @returns {string[]} Array of strings
 */
function loadStrings(filename, callback, errorCallback);

/**
 * Load tabular data (CSV/TSV) as p5.Table
 * @param {string} filename - Path to data file
 * @param {object|string} [options] - Loading options or file extension
 * @param {function} [callback] - Success callback
 * @param {function} [errorCallback] - Error callback
 * @returns {p5.Table} Table object
 */
function loadTable(filename, options, callback, errorCallback);

/**
 * Load XML data
 * @param {string} filename - Path to XML file
 * @param {function} [callback] - Success callback
 * @param {function} [errorCallback] - Error callback
 * @returns {p5.XML} XML object
 */
function loadXML(filename, callback, errorCallback);

/**
 * Load binary data
 * @param {string} file - Path to binary file
 * @param {function} [callback] - Success callback
 * @param {function} [errorCallback] - Error callback
 * @returns {object} Binary data object
 */
function loadBytes(file, callback, errorCallback);

/**
 * Save data to file
 * @param {object|string} objectOrFilename - Data object or filename
 * @param {string} [filename] - Filename if first param is data
 * @param {object} [options] - Save options
 */
function save(objectOrFilename, filename, options);

/**
 * Save JSON data to file
 * @param {object} json - JSON data object
 * @param {string} filename - Output filename
 * @param {boolean} [optimize] - Whether to optimize/minimize JSON
 */
function saveJSON(json, filename, optimize);

/**
 * Save string array to text file
 * @param {string[]} list - Array of strings
 * @param {string} filename - Output filename
 * @param {string} [extension] - File extension
 * @param {boolean} [isCRLF] - Use Windows line endings
 */
function saveStrings(list, filename, extension, isCRLF);

/**
 * Save table data as CSV
 * @param {p5.Table} table - Table to save
 * @param {string} filename - Output filename
 * @param {object} [options] - Save options
 */
function saveTable(table, filename, options);

/**
 * Save canvas as image file
 * @param {string|p5.Element} [selectedCanvas] - Canvas element or filename
 * @param {string} [filename] - Output filename
 * @param {string} [extension] - File extension (png, jpg)
 */
function saveCanvas(selectedCanvas, filename, extension);

/**
 * Table for working with tabular data (CSV/TSV)
 */
class p5.Table {
  /** Array of column names */
  columns;
  /** Array of p5.TableRow objects */
  rows;
  
  /**
   * Add a new row
   * @param {p5.TableRow} [row] - Row to add (creates new if not provided)
   * @returns {p5.TableRow} The added row
   */
  addRow(row);
  
  /**
   * Remove a row
   * @param {number} id - Row index to remove
   */
  removeRow(id);
  
  /**
   * Get row by index
   * @param {number} rowID - Row index
   * @returns {p5.TableRow} Row object
   */
  getRow(rowID);
  
  /**
   * Get all rows
   * @returns {p5.TableRow[]} Array of row objects
   */
  getRows();
  
  /**
   * Find first row matching criteria
   * @param {string} value - Value to search for
   * @param {string} column - Column to search in
   * @returns {p5.TableRow} First matching row
   */
  findRow(value, column);
  
  /**
   * Find all rows matching criteria
   * @param {string} value - Value to search for
   * @param {string} column - Column to search in
   * @returns {p5.TableRow[]} Array of matching rows
   */
  findRows(value, column);
  
  /**
   * Add a new column
   * @param {string} [title] - Column name
   */
  addColumn(title);
  
  /**
   * Get column count
   * @returns {number} Number of columns
   */
  getColumnCount();
  
  /**
   * Get row count
   * @returns {number} Number of rows
   */
  getRowCount();
}

/**
 * Table row for individual row operations
 */
class p5.TableRow {
  /**
   * Get cell value by column name or index
   * @param {string|number} column - Column name or index
   * @returns {string} Cell value
   */
  get(column);
  
  /**
   * Get cell value as number
   * @param {string|number} column - Column name or index
   * @returns {number} Cell value as number
   */
  getNum(column);
  
  /**
   * Get cell value as string
   * @param {string|number} column - Column name or index
   * @returns {string} Cell value as string
   */
  getString(column);
  
  /**
   * Set cell value
   * @param {string|number} column - Column name or index
   * @param {*} value - Value to set
   */
  set(column, value);
  
  /**
   * Set cell value as number
   * @param {string|number} column - Column name or index
   * @param {number} value - Numeric value to set
   */
  setNum(column, value);
  
  /**
   * Set cell value as string
   * @param {string|number} column - Column name or index
   * @param {string} value - String value to set
   */
  setString(column, value);
}

/**
 * XML document parsing and manipulation
 */
class p5.XML {
  /**
   * Get child element by name or index
   * @param {string|number} name - Element name or index
   * @returns {p5.XML} Child element
   */
  getChild(name);
  
  /**
   * Get all child elements
   * @param {string} [name] - Filter by element name
   * @returns {p5.XML[]} Array of child elements
   */
  getChildren(name);
  
  /**
   * Get element content as string
   * @returns {string} Element content
   */
  getContent();
  
  /**
   * Set element content
   * @param {string} text - Content to set
   */
  setContent(text);
  
  /**
   * Get attribute value
   * @param {string} name - Attribute name
   * @returns {string} Attribute value
   */
  getAttribute(name);
  
  /**
   * Set attribute value
   * @param {string} name - Attribute name
   * @param {*} value - Attribute value
   */
  setAttribute(name, value);
  
  /**
   * Check if attribute exists
   * @param {string} name - Attribute name
   * @returns {boolean} True if attribute exists
   */
  hasAttribute(name);
}