JPH0954674A - Code converting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To convert code data consisting of data in different code format to a desired code format. SOLUTION: This code converting device is equipped with a code conversion object input file 1 which contains code data consisting of data in different code format, a multicode conversion information table 3 wherein an input data painter value 3a indicating the position of a different-format part in the code data, a length value 3b indicating the length of the data, an output data pointer value 3c indicating a data output position after the data is converted, and a code conversion kind 3d showing what kind of code the data is converted into are recorded, and a multicode converting process 4 which reads the code data out of the input file 1 in order and converts the code data to the desired code format according to respective pieces of information in the multicode conversion information table 3 and a code conversion library 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a code conversion device used in an information processing device such as a computer.

[0002]

2. Description of the Related Art In recent years, in addition to JIS code, shift JIS code, EU
Data in various code formats such as C code and EBCDIC code are used.

In using the data in the above information equipment, in order to convert the code data of a certain format into the code of another format, a code conversion device dedicated to each other's code is used. As shown in FIG. 2, for example, the JIS code is EBCD
To convert to IC code, etc., JIS → EBCD
The IC code conversion device 11 is used, and in order to convert a JIS code into a shift JIS code, etc.
An S → shift JIS code conversion device 12 is used.
Similarly, in order to convert the shift JIS code into an EBCDIC code or the like, a shift JIS → EBCDIC code conversion device 13 is used.

By the way, in recent years, data of different formats may be stored in the same file, and conversely, code data of one format may be divided into code data of two formats for each letter or numeral.

However, since the conventional code conversion device only converts code data from one format to one format one-to-one, if data of different formats coexist in the same file, the file of that file is mixed. Data cannot be converted because the code format has changed.

[0006]

As described above, in the above-described conventional code conversion device, when data of different formats are mixed in the same file, or when code data of one format is divided into two formats, There was a problem that conversion could not be performed.

The present invention has been made to solve such a problem, and can perform data conversion even when data of different formats are mixed or when code data of one format is divided into two formats. It is an object of the present invention to provide a code conversion device that can be used.

[0008]

In order to achieve the above-mentioned object, the invention according to claim 1 has a data storage means in which data of different formats are mixed and stored, and a data of different formats in the data storage means. Of the conversion information recording means for recording at least the position information indicating the location where the data exists and the type information indicating the format of the data to be converted, and the conversion information recording means for sequentially reading the data from the data storage means. Data conversion means for converting the data into a corresponding format based on the position information and the type information.

According to a second aspect of the present invention, data storage means in which data having different formats are mixed and stored, position information indicating a location where data having different formats in the data storage means exist, and which format the data is in Conversion information recording means for recording at least the type information indicating whether to convert to the data and the output position information of the converted data, and the data sequentially read from the data storage means, and the position information and the type information of the conversion information recording means. Data conversion means for converting the data into a corresponding format based on the above, and the data converted by the data conversion means at the position of the data storage means indicated by the output position information or other predetermined data storage means. Data recording means for recording at the position of.

Further, according to the invention of claim 3, an input file in which code data having different code formats are mixed and stored, and code data of the input file are made to correspond,
A conversion information table in which position information indicating the existence position of data having different code formats in code data, type information indicating which type of code the data is to be converted, and data output position information after conversion are recorded, A code conversion library that stores a plurality of types of code data for code conversion in association with each other, and sequentially reads the code data from the input file, and based on each information of the conversion information table and the code conversion library, the code data To
And a multi-code conversion process of converting into a corresponding code format and recording at a recording position in a predetermined output file indicated by the data output position information.

[0011]

In the present invention, the data conversion means sequentially reads the data from the data storage means and converts the data into a corresponding format based on the position information and the type information of the conversion information recording means.

Therefore, data conversion can be performed even when data of different formats are mixedly stored in the data storage means or when code data of one format is divided into two formats.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the configuration of a code converting apparatus according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a code conversion target input file in which different code data such as code format and data format are mixed and stored. A code conversion library 2 stores a plurality of types of code data in association with each other for code conversion. As a plurality of types of code data, for example, a JIS code, a shift JIS code, an EUC code, an EBCDIC code such as a KEIS code or a JEF code, etc. are stored correspondingly. 3 is a multi-code conversion information table,
In correspondence with the code data of the input file 1 to be code-converted, an input data pointer value 3a indicating a position where data having a different code format starts in the code data, an input data length value 3b indicating the length of the data, a code format An output data pointer value 3c indicating a data output start position after conversion of different data, a code conversion type 3d indicating which kind of code among the various codes is to be converted, and the like are recorded. . 4 is a multi-code conversion process, which is a code conversion target input file 1
From the multi-code conversion information table 3 and the code conversion library 2, and the recording position in the code conversion target output file 5 indicated by the output data pointer value 3c. To record.

Next, the operation of this code conversion device will be described.

In this code conversion device, for example, EBCDIC code data and EUC code data are mixedly stored in the code conversion target input file 1, and when the data is converted into JIS code, multi-code conversion is performed. The process 4 first reads the input data pointer value 3a, the input data length value 3b, the output data pointer value 3c, and the code conversion type 3d by referring to the multi-code conversion information table 3 and reads the E from the EBCDIC code.
A data position having a different code format to the UC code, its data length, and a conversion type are determined.

Then, the code data is sequentially read from the input file 1 to be code-converted, the EBCDIC code of the code conversion library 2 is first referred to, the EBCDIC code is converted to the JIS code by referring to the JIS code library, and the converted JIS code is converted. Is recorded at the recording position in the code conversion target output file 5 indicated by the output data pointer value 3c.

Next, when the code format is changed from the EBCDIC code to the EUC code, the multicode conversion process 4 refers to the EUC code → JIS code library of the code conversion library 2 and converts the EUC code to the JIS code. , The converted JIS code data is recorded at the recording position in the code conversion target output file 5 indicated by the output data pointer value 3c.

As a result, code data of different formats in the same code conversion target input file 1 is converted into code data of a desired code format by a single code conversion process, and a desired order is set in the code conversion target output file 5. You can re-record with.

On the other hand, in the code conversion target input file 1, for example, EUC code alphabetic data and numeric data of the same code are stored in a mixed manner, and when only the alphabetic data portion is converted to JIS code or the like, The multi-code conversion process 4 first reads the input data pointer value 3a, the input data length value 3b, the output data pointer value 3c, and the code conversion type 3d by referring to the multi-code conversion information table 3 and converting the EUC code A data position having a different data format, its data length, and a conversion type are determined.

Then, the code data is sequentially read from the input file 1 to be code-converted, and first, the EUC code of the code conversion library 2 is referred to, and the alphabetic data of the EUC code is converted to the JIS code by referring to the JIS code library. The specified JIS code data is recorded at the recording position in the code conversion target output file 5 indicated by the output data pointer value 3c.

Subsequently, when the data format is changed from alphanumeric data to numeric data, the multicode conversion process 4 outputs the code data as it is without conversion processing to the code conversion target output indicated by the output data pointer value 3c. Record at the recording position in file 5.

As a result, even if there are data of different formats in the same code data, it is possible to convert the code data to another or not depending on the data format.

As described above, according to the code conversion apparatus of this embodiment, when the EBCDIC code data and the EUC code data are mixed in the code conversion target input file 1, the multi-code conversion process 4 starts the first code conversion. EBCDIC code of conversion library 2-> Refer to the library of JIS code to convert the EBCDIC code to JIS code, and when the code format is changed from EBCDIC code to EUC code, the code conversion library 2E
UC code → EU by referring to the JIS code library
Since the C code is converted to the JIS code, the data conversion can be performed even when data of different formats are mixed.

In addition, EU is added to the input file 1 for code conversion.
Alphabet data and numeric data of C code are mixed,
When converting only the alphabetic data portion of this into a JIS code, the multicode conversion process 4 refers to the EUC code → JIS code library of the code conversion library 2 and converts only the EUC coded alphabetic data into the JIS code. However, since the other numeric data is left as it is as the EUC code, the code data of one format can be divided into two formats as a result.

The present invention is not limited to the above embodiment.

For example, the EBCDIC code data and the EUC code data are mixedly stored in the code conversion target input file 1, and only the data portion of the EBCDIC code is converted into another code format, for example, JIS code. , EUC code data can be left as it is.

[0029]

As described above, according to the present invention, the data conversion means sequentially reads the data from the data storage means and converts the data into a corresponding format based on the position information and the type information of the conversion information recording means. Therefore, data conversion can be performed even when data of different formats are mixed or when code data of one format is divided into two formats.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a code conversion device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a general form of code conversion.

[Explanation of symbols]

1 ... Code conversion target input file, 2 ... Code conversion library, 3 ... Multicode conversion information table, 4 ... Multicode conversion process, 5 ... Code conversion target output file.

Claims (3)

[Claims] 1. Data storage means for storing data of different formats in a mixed manner, position information indicating a location where data of different formats of the data storage means exist, and format of the data to be converted. Conversion information recording means for recording at least type information shown, and data conversion means for sequentially reading data from the data storage means and converting the data into a corresponding format based on position information and type information of the conversion information recording means A code conversion device comprising: 2. Data storage means for storing data of different formats in a mixed manner, position information indicating a location where data of different formats of the data storage means exist, and format of the data to be converted. Conversion information recording means for recording at least the type information and output position information of the converted data, and the data is sequentially read from the data storage means, and the data is associated based on the position information and type information of the conversion information recording means. Data converting means for converting into a format for converting the data into a format for recording the data converted by the data converting means at the position of the data storing means indicated by the output position information or another predetermined data storing means. A code conversion device comprising means. 3. An input file in which code data having different code formats are mixed and stored, and position information indicating the existence position of data having different code formats in the code data, corresponding to the code data of the input file, A conversion information table in which type information indicating which type of code the data is to be converted into and data output position information after conversion is recorded, and a code that stores multiple types of code data in association with each other for code conversion. The conversion library and the code data are sequentially read from the input file, the code data is converted into a corresponding code format based on each information of the conversion information table and the code conversion library, and is indicated by the data output position information. A multi-code conversion process for recording at a recording position in a predetermined output file A code conversion device characterized by.