Converting device and converting method

A converting device, comprising:

• a processor, wherein the processor executes:
• inputting a compressed file in which character string data with a first character code is compressed by a unit of character string including a single character or a plurality of characters;
• converting compression information included in the compressed file into converted compression information, the compression information mapping each of compressed character string data in the compressed file to each of corresponding unit of character string with the first character code, thereby the converted compression information mapping each of the compressed character string data in the compressed file to each of the corresponding unit of character string with a second character code;
• and
• generating a converted compression file from the converted compression information and each of the compressed character string data.

A converting method executed by a computer, the conversion method comprising:

• inputting a compressed file in which character string data with a first character code is compressed by a unit of character string including a single character or a plurality of characters using a processor;
• converting compression information included in the compressed file into converted compression information, the compression information mapping each of compressed character string data in the compressed file to each of corresponding unit of character string with the first character code, thereby the converted compression information mapping each of the compressed character string data in the compressed file to each of the corresponding unit of character string with a second character code using the processor;
• and
• generating a converted compression file from the converted compression information and each of the compressed character string data using the processor.

A non-transitory computer-readable recording medium having stored therein a compression program that causes a computer to execute a process, comprising:

• determining whether the character string to be compressed is registered in a first dictionary, on a basis of the first dictionary in which each character string is mapped to each compression code, and the character string to be compressed;
• when the character string to be compressed is registered in the first dictionary, compressing the character string to be compressed to a compression code corresponding to the character string to be compressed registered in the first dictionary;
• and
• when the character string to be compressed is not registered in the first dictionary, registering the character string to be compressed in a second dictionary, and compressing the character string to be compressed to information based on a registered position.

A compression device, comprising:

• a processor, wherein the processor executes:
• determining whether the character string to be compressed is registered in a first dictionary, on a basis of the first dictionary in which each character string is mapped to each compression code, and the character string to be compressed;
• when the character string to be compressed is registered in the first dictionary, compressing the character string to be compressed to a compression code corresponding to the character string to be compressed registered in the first dictionary;
• and
• when the character string to be compressed is not registered in the first dictionary, registering the character string to be compressed in a second dictionary, and compressing the character string to be compressed to information based on a registered position.