Encoding method, encoding device,decoding method, and decoding device

The invention relates to an encoding method, an encoding device, a decoding method, and a decoding device. An encoding device includes an identification unit and an encoding unit. The identification unit is configured to identify document structure of a first structured document. The encoding unit is configured to encode a character string in a specific hierarchy of the first structured document with an encoding rule corresponding to the specific hierarchy utilizing the document structure. 本发明涉及编码方法、编码装置、解码方法和解码装置。种编码装置包括识别单元和编码单元。识别单元识别第结构化文档的文档结构。编码单元使用与使用文档结构的特定层次相对应的编码规则来对第结构化文档的特定层次中的字符串进行编码。