Class EncodingBuilder

src/fontbox/encoding/encoding.ts:37–76

 * Mutable encoding builder for constructing encodings.
 */
export class EncodingBuilder implements Encoding {
  private readonly codeToName = new Map<number, string>();
  private readonly nameToCode = new Map<string, number>();

  /**
   * Add a character encoding mapping.
   * @param code - Character code (0-255)
   * @param name - Glyph name
   */
  addCharacterEncoding(code: number, name: string): void {
    this.codeToName.set(code, name);
    this.nameToCode.set(name, code);
  }

  /**
   * Get the glyph name for a character code.
   * @param code - Character code (0-255)
   * @returns The glyph name, or ".notdef" if not mapped
   */
  getName(code: number): string {
    return this.codeToName.get(code) ?? ".notdef";
  }

  /**
   * Get the character code for a glyph name.
   * @param name - The glyph name
   * @returns The character code, or undefined if not mapped
   */
  getCode(name: string): number | undefined {
    return this.nameToCode.get(name);
  }

  /**
   * Get an unmodifiable view of the code to name mapping.
   * @returns Map from character codes to glyph names
   */
  getCodeToNameMap(): ReadonlyMap<number, string> {
    return this.codeToName;
  }
}

/**
 * Create an encoding from a code-to-name map.