JP2005293440A - Character code conversion method, computer with character code conversion function and character code conversion program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a character code conversion method capable of executing appropriate character code conversion without specifying an operation system or a computer identification code.
Characteristic of a character code assumed as a character code of data to be read is previously stored in a computer 1 as character code tables 1, 2, 3,..., N. The characteristics of the character code describing the data of the file 7 to be read and the characteristics of the character code tables 1, 2, 3,..., N are based on the presence or absence of the definition of the character corresponding to the character code. The computer 1 compares and specifies the character code table j describing the file 7. A program for applying a known character code conversion to the file 7 by applying a rule adapted to the combination of the character code table j and the character code table 1 used by the computer 1, and operating the converted file 7 'on the computer 1 To load.
[Selection] Figure 1

Description

  The present invention provides a character code conversion method and a character code conversion function for adapting a character code describing data to a computer operating system before the data described in the file is read by a program operating on the computer. The present invention relates to a computer and a character code conversion program.

When data is input to a program using a file, the file used there is often created by general-purpose software on an operating system different from the operating system on which the program actually operates, such as an editor.
In general, the character code is different for each operating system. Therefore, when inputting data into the program, it is necessary to prepare a file in which character codes have been converted in advance according to the operating system on which the program actually operates.

  As a technique for improving the inconvenience caused by the difference in the character code, for example, there is a character data conversion / transfer system as disclosed in Patent Document 1 or an automatic character code conversion apparatus as disclosed in Patent Document 2. It is known.

The character data conversion and transfer method disclosed in Patent Document 1 converts the character code of data at the data transfer source in accordance with the transfer destination operating system when data is transferred between computers having different operating systems. Although it is convenient in that the character code conversion process is automated, the character code conversion process must be executed at the data transfer source.
Therefore, even if data already described in some character code exists inside or outside the computer, if the character code describing the data is different from the character code of the operating system of the computer, the data is stored in the computer. It cannot be loaded into the program that runs above.
In other words, when data is input to a program that runs on a computer, a file that has been converted into a character code must be prepared in advance using a different computer from the computer that actually runs the program. However, there is a disadvantage that at least two computers are required.

  The automatic character code conversion device disclosed in Patent Document 2 is also the same as that of Patent Document 1 regarding the technical idea of performing character code conversion to obtain data consistency between two or more computers having different character codes. Therefore, there are the same disadvantages as described above.

  In addition, since all of these are configured to specify the character code of the conversion source or conversion destination by the user himself / herself specifying the name of the operation system, the computer identification code, etc., an appropriate character code due to a computer operation error There is a drawback that conversion cannot be performed.

JP-A-4-361323 Japanese Patent Laid-Open No. 5-341596

  Accordingly, an object of the present invention is to improve the inconvenience of the prior art, and when data already described in some character code exists inside or outside the computer, the data is described by a single computer. Character code conversion that can be adapted to the operating system of the computer, and can perform appropriate character code conversion even if the user does not bother to specify the name of the operation system, the computer identification code, etc. A method, a computer with a character code conversion function, and a program for character code conversion are provided.

The character code conversion method of the present invention is a character code conversion method for adapting a character code describing the data to a computer operating system before the data described in the file is read by a program operating on the computer. In order to solve the above problem, in particular,
Characteristic of the character code assumed as the character code of the data to be read is stored in the computer in advance,
As preprocessing for causing the program to read the data, the characteristics of the character code describing the data are compared with the characteristics of several types of character codes stored in the computer in advance. Identify the character code you are describing,
Performing character code conversion on the data so that the data described in the specified character code is described in a character code used in an operating system of the computer;
A new file generated by character code conversion is held as a data description file for program execution.

With the above configuration, as preprocessing for reading data described in a file into a program operating on the computer, first, the characteristics of the character code describing the data and several types stored in advance in the computer The character code describing the data is specified by comparing with the character code characteristics.
At this time, it is not necessary to specify the character code describing the data by specifying the name of the operation system, the computer identification code, etc., or the character code used in the computer operating system. Since the character code describing the data is identified by directly comparing the characteristics of the code with the characteristics of several types of character codes stored in the computer in advance, the user side may make a mistake in operating the computer. This eliminates the problem of erroneously specifying the character code.
In this way, after the character code describing the data is specified, the data described in the specified character code is described in the character code used in the computer operating system. Character code conversion is performed to generate a new file, and this file is held as a data description file for program execution.
Therefore, by reading the data description file into a program operating on the computer, it is possible to accurately execute processing operations unique to the program.
In addition, since character code conversion for data is executed on a computer on which the program operates, it is not necessary to prepare a separate computer for character code conversion. If data written in some character code already exists, The program can be executed using the data as it is.

  Furthermore, an unnecessary character string generated at the time of character code conversion may be deleted and held as a data description file for program execution.

  By deleting unnecessary character strings in advance before the execution of the program, it is possible to prevent the malfunction of the program and the occurrence of an abnormality accompanying the execution of the program.

  At this time, it is desirable to delete at least continuous spaces as unnecessary character strings.

  Even when the character code describing the data is properly identified, there are character control codes that are difficult to replace properly, such as carriage return (CR) and line feed (LF). There are cases where no spaces are continuously generated. By deleting consecutive spaces, abnormalities caused by character control codes that are difficult to replace can be reduced.

  Further, as a characteristic of the character code assumed as the character code of the data to be read, it is desirable to store a character code table.

  Character code differences are essentially character code table differences, so if you compare the characteristics of the character code describing the data with the characteristics of several types of character code tables, the data is described. It is possible to specify the character code.

  Specifically, if some of the character codes describing the data are extracted and the characters corresponding to the character codes are defined in the character code table, the character code describing the data is It can be identified as a character code in the code table.

  For example, if some character codes describing data are extracted from the beginning and all the characters corresponding to the character codes are defined in the character code table, that is, the character code describing the data is the character code. When the undefined portion of the table is not designated, it is possible to specify that the character code for data description is the character code of the character code table.

The computer with a character code conversion function of the present invention achieves the same problem as described above,
Character code analyzing means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance,
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer; It has the structure characterized by comprising.

In the above configuration, the character code analysis means compares the character code characteristics describing the data with the character code characteristics stored in advance in the computer, and identifies the character code describing the data.
Specifically, the character code analysis means extracts some of the character codes describing the data, determines in which character code table the character corresponding to the character code is defined, and is extracted. It is possible to specify the character code corresponding to the character code table in which all the character codes are defined as the character code used in the description of the data.
The character code converting means converts the data character code so that the data described by the character code specified by the character code analyzing means is described by the character code used in the operating system of the computer.

  Further, in addition to the above-described configuration, a data analysis unit that analyzes data converted by the character code conversion unit and deletes unnecessary character strings may be provided.

By deleting unnecessary character strings in advance before the execution of the program, it is possible to prevent the malfunction of the program and the occurrence of an abnormality accompanying the execution of the program.
The data analysis means desirably deletes at least continuous spaces as unnecessary character strings.

The character code conversion program according to the present invention is a character code conversion for adapting a character code describing the data to a computer operating system before the data described in the file is read by a program operating on the computer. In order to achieve the same problem as described above,
Character code analysis means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance.
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer It has a configuration characterized by functioning.

  The operation of the computer in which this character code conversion program is installed is as described above.

  In addition, the character code conversion program may cause the computer to further function as data analysis means for analyzing data whose character codes have been converted by the character code conversion means and deleting unnecessary character strings. .

  The operation of the computer in which this character code conversion program is installed is as described above.

The present invention relates to the characteristics of character codes describing data and several kinds of character codes stored in advance in a computer as preprocessing for causing a program operating on the computer to read data described in a file. The character code that describes the data is specified by comparing with the characteristics of the system, so the character code that describes the data by specifying the name of the operation system, the computer identification code, etc. and the computer operating system There is no need to specify the character code used. Therefore, the problem of erroneously specifying the character code due to a computer operation error or the like on the user side can be solved, and appropriate character code conversion can be performed.
Moreover, since the character code conversion is executed on the computer on which the program operates, it is not necessary to prepare a separate computer for the character code conversion. If data written in some character code already exists, this data is converted. The program can be executed on the computer by using it as it is.

  Next, the best mode for carrying out the present invention will be described with an example. FIG. 1 is a functional block diagram showing an outline of the configuration of a computer with a character code conversion function (hereinafter simply referred to as a computer) to which the character code conversion method of the present invention is applied.

  As shown in FIG. 1, the computer 1 is preliminarily stored in the computer 1 with data reading means 2 for reading data described in the file 7, and character code characteristics describing the data in the file 7. Character code analysis means 3 is provided for identifying the character code describing the data of the file 7 by comparing the characteristics of several types of character codes.

  The character code conversion means 4 converts the character code of the data so that the data described by the character code specified by the character code analysis means 3 is described by the character code used in the operating system of the computer 1. And data analysis means 5 for analyzing the data whose character code has been converted by the character code conversion means 4 and deleting unnecessary character strings.

  Data that has undergone character code conversion by the character code conversion means 4 and from which unnecessary character strings have been deleted by the data analysis means 5 is held in the database 6 as a data description file for program execution. .

  FIG. 2 is a block diagram showing a substantial configuration of the computer 1. As shown in FIG. 2, the computer 1 includes a CPU 8 for arithmetic processing, a ROM 9 that stores a drive control program for the CPU 8, a RAM 10 that is used for temporary storage of arithmetic data, and a hard disk that functions as a large-capacity nonvolatile storage means. The drive 11 has an interface 12 for connecting to other computers and various networks. The input / output circuit 13 of the CPU 8 is connected to a display 14 constituting a man-machine interface, a keyboard 15 and a mouse 16, and a floppy disk drive for reading an external file 7 via a data storage medium. 17 etc. are connected.

  The hard disk drive 11 stores a character code conversion program to which the present invention is applied. By reading the character code conversion program into the RAM 10 and causing the CPU 8 to execute it, the CPU 8 causes the data reading means 2 and the character code to be read. It functions as analysis means 3, character code conversion means 4 or data analysis means 5.

  The hard disk drive 11 stores, for example, word processing software as another application program that operates on the computer 1.

  The hard disk drive 11 functions as a database 6 for holding a data description file for program execution, and also serves as storage means for storing character code characteristics assumed as character codes of data to be read. Also works.

  3, 4, and 5 are conceptual diagrams showing examples of character code tables stored in the hard disk drive 11 in advance.

  Here, for the sake of convenience, the character code table in FIG. 3 is referred to as character code table 1, the character code table in FIG. 4 is referred to as character code table 2, and the character code table in FIG.

  Among these, the character code actually used by the operating system of the computer 1 is a character code corresponding to the character code table 1 in FIG. 3, and the character code table 2 in FIG. 4 and the character code table 3 in FIG. It is the character code table memorize | stored as the characteristic of the character code assumed as a character code of the data used as the object of reading.

  3, 4, and 5 are examples of a 2-byte character code table. Characters are represented by a character code (H, L) consisting of a numerical value of the upper 1 byte (H) and a numerical value of the lower 1 byte (L). By designating the spot (H, L) of the code table, a character unique to each character code table is designated.

  Here, assuming that the character code (H, L) = (0, 3) in the character code table 3 of FIG. 5 indicates the character “0”, the character code table 3 of FIG. 5 is used. If the character code (H, L) = (0, 3) is used to display the character “0” in a program that runs on another computer, for example, data created by word processing software, When this character code (H, L) = (0, 3) is read as it is into a word processing software operating on the computer 1, the character code ((1) in the character code table 1 of FIG. H, L) = (0, 3) is specified, but the character code (H, L) = (0, 3) is undefined in the character code table 1 of FIG. The intended character “0” is not displayed on the There may problem operation of word processing software running on the computer 1 is detected an error is stopped occurs. That is, the character code itself may not be interpreted due to the difference in the character code.

  Further, suppose that the character code (H, L) = (3, 2) in the character code table 2 in FIG. 4 indicates the character “#”, and the character code (H, L) = (in the character code table 1 in FIG. Assuming that 3) and 2) indicate the character "2", the character "#" is displayed with data created by a program operating on another computer using the character code table 2 of FIG. When the character code (H, L) = (3, 2) is used for this purpose, the character code (H, L) = (3, 2) is used as it is in the word processor software operating on the computer 1. When read, the character code (H, L) = (3, 2) is specified in the character code table 1 of FIG. 3 used by the operating system of the computer 1, and as a result, the first intended character "#" There is a problem that the character “2” is displayed instead. That is, even if the character code can be interpreted, the intended character may not be displayed due to the difference in the character code.

  In this case, the character “#” is actually defined by the character code (H, L) = (2, 3) in the character code table 1 of FIG. 3, and therefore the character code table 2 of FIG. 4 is used. When data created by a word processing software operating on another computer is read into a word processing software operating on the computer 1, the character code (H, L) = (3, 2) is designated as a character code ( If the process of conversion to the designation of (H, L) = (2, 3) is performed, the character “#” created by the word processor software that operates on another computer is also converted to the character “ "#" Can be displayed appropriately as intended.

  As described above, a technique for performing character code conversion by applying a specific rule that is suitable for a combination of character code tables between computers or applications that use different character code tables is already known. In order to perform appropriate character code conversion by applying this technique, there is a limitation that the character code used by each computer or application must be made clear. In addition, even if the character code is clear, the character code used by each computer or application, or the name of the operation system or computer identification code required to specify the character code Therefore, if the user makes a mistake in operating the computer, proper character code conversion cannot be performed.

  In order to eliminate such inconvenience, in this embodiment, the computer 1 compares the characteristics of the character code describing the data with the characteristics of several types of character codes stored in the computer 1 in advance. The character code describing the data is specified by internal processing of the computer 1.

  Next, flowcharts of FIGS. 7 and 8 showing an outline of preprocessing executed by the CPU 8 when an application program such as word processing software operating on the computer 1 reads data of the file 7 created by another computer. The processing operation of the CPU 8 functioning as the data reading means 2, the character code analyzing means 3, the character code converting means 4, and the data analyzing means 5 will be specifically described.

  As described above, the character code conversion program to which the present invention is applied is stored in the hard disk drive 11, and this character code conversion program is read into the RAM 10 and executed by the CPU 8 to start the preprocessing. The CPU 8 functions as the data reading means 2, the character code analyzing means 3, the character code converting means 4 or the data analyzing means 5.

  When the preprocessing is started, first, the CPU 8 functioning as the data reading means 2 reads a series of data described in character codes from the designated file 7 and temporarily stores it as a backup in the RAM 10 (step S1).

  The file 7 that is the original data may exist inside the computer 1 (in the hard disk drive 11) or outside, but if reading from the outside is necessary, the interface 12 is used. Or a data storage medium containing the file 7 and a floppy disk drive 17 or the like.

  Next, the CPU 8 initializes the character code table selection index j to 0 (step S2), increments the value of the index j by 1 again (step S3), and then initializes the value of the hit number counter k to 0 (step S3). Step S4).

  Then, the CPU 8 functioning as the character code analyzing means 3 reads one character code describing data from the head of the file 7 temporarily stored in the RAM 10 (step S5), and the current value of the character code table selection index j. The character code table j specified in (1) is searched to determine whether or not the one character code is defined in the character code table j (step S6).

  If j = 1 at the present time and the one character code read in step S5 is (H, L) = (3, 2), the character code table 1 (= j) in FIG. Since the character “2” is defined in (H, L) = (3, 2), the determination result in step S6 is true. In this case, even if the character code table describing the data of the file 7 is any of those shown in FIG. 3, FIG. 4 and FIG. At the present stage when the character code used is unknown, it is specified which character “2” or character “#” is designated by the character code (H, L) = (3, 2) describing the data I can't. In short, what matters at this point is whether or not any character is defined in the (H, L) spot of the character code table j specified by the one character code (H, L) read in the process of step S5. Only.

  Here, when the determination result in step S6 is true and it is clear that the one character code is defined in the character code table j, the CPU 8 functioning as the character code analyzing means 3 detects the hit number counter. The value of k is incremented by 1 (step S7), and it is determined whether or not the current value of the counter k has reached the code identification reference value m (step S8).

  The code identification reference value m is a reference value for determining whether or not the character code describing the data of the file 7 matches the character code table j specified by the character code table selection index j.

  When the determination result in step S8 is false and it is clear that the current value of the hit number counter k has not reached the code identification reference value m, the CPU 8 functioning as the character code analysis means 3 stores in the RAM 10. One next character code is read from the temporarily stored file 7 (step S5). In step S8, it is confirmed in step S6 that the one character code is not defined in the character code table j, or that the current value of the counter k has reached the code identification reference value m. Until the processing is confirmed, the processing from step S5 to step S8 is repeatedly executed in the same manner as described above while sequentially incrementing the value of the hit number counter k.

  If the determination result in step S6 becomes false while repeatedly executing such processing, the data in the file 7 is described using a character code that is not defined in the character code table j. That is, it means that the data of the file 7 is described using a character code table other than the character code table j.

  Therefore, the CPU 8 functioning as the character code analyzing means 3 determines whether or not the current value of the character code table selection index j has reached the total number n (= 3) of the character code tables stored in the hard disk drive 11 in advance. That is, it is determined whether or not all the comparisons between the characteristics of the character code describing the data of the file 7 and the characteristics of the character code table stored in the computer 1 in advance have been completed (step). S9).

  If the determination result in step S9 is true, all the comparisons between the characteristics of the character code describing the data of the file 7 and the characteristics of several character code tables stored in the computer 1 in advance are all performed. This means that the feature of the character code describing the data of the file 7 does not match the feature of any character code table stored in the computer 1 in advance. In this case, since the data of the file 7 is described by the character code that was not assumed as the character code of the data to be read, the character code conversion becomes impossible, and the pre-processing related to the character code conversion Is interrupted at this point.

  On the other hand, if the determination result of step S9 is false, it means that there is still a character code table that has not been compared with the character code characteristics describing the data of the file 7, Since the characteristic of the character code describing the data of the file 7 may match the characteristic of the other character code table, the CPU 8 functioning as the character code analysis means 3 determines the value of the character code table selection index j. 1 is incremented, another character code table j is selected again based on the current value of the index j (step S3), the value of the hit number counter k is initialized to 0 (step S4), and the same as above Then, the process from step S5 to step S8 is repeatedly executed.

  If the determination result in step S8 becomes true while repeatedly executing such processing, the character code read in order from the top of the file 7 stored as a backup in the RAM 10 is continuous from at least the top. This means that only m characters are defined in the character code table j. Therefore, the CPU 8 functioning as the character code analyzing means 3 is assumed that the data in the file 7 is described by the character code in the character code table j. Determination is made, and the above loop processing is terminated.

  As illustrated in FIGS. 3, 4, and 5, the character code table describes the data of the file 7 because the distribution state of the spot (H, L) where the character is undefined differs depending on the type. If some character codes, for example, m from the beginning are extracted and a character code table in which all the extracted character codes are defined is obtained, the data in the file 7 is based on which character code table. You can know if it was generated. It is assumed that the code identification reference value m sufficient to specify the character code table with sufficient accuracy is obtained in advance.

  After specifying the character code table j corresponding to the character code describing the data of the file 7 as described above, the CPU 8 determines whether or not the current value of the character code table selection index j is 1, that is, It is determined whether the character code describing the data in the file 7 is the same as the character code actually used by the operating system of the computer 1 (step S10).

  If the determination result in step S10 is true, the character code describing the data of the file 7 and the character code actually used by the operating system of the computer 1 are the same, both character codes Since it means that it is based on Table 1, substantial character code conversion is unnecessary, and this file 7 is held in the RAM 10 as it is.

  On the other hand, if the determination result in step S10 is false, it means that the character code describing the data in the file 7 is different from the character code actually used by the operating system of the computer 1. Therefore, the CPU 8 functioning as the character code conversion means 4 is a rule adapted to the combination of the character code table j describing the data of the file 7 and the character code table 1 actually used by the operating system of the computer 1. Is used to execute known character code conversion, so that the data in the file 7 described in the character code corresponding to the character code table j becomes the character code in the character code table 1 used in the operating system of the computer 1. The character code of the data in the file 7 is converted as described in (Step S 1), and temporarily stores overwrite files 7 that has been converted character code anew in RAM 10 (step S12).

  At this time, the data of the working file 7 read into the RAM 10 as a backup in step S1 is lost, but the original data in the computer 1 (in the hard disk drive 11) or in the data storage medium containing the file 7 is lost. Is retained as is.

  Next, the CPU 8 functioning as the data analysis means 5 reads one character code describing data from the beginning of the file 7 after character code conversion temporarily stored in the RAM 10 (step S13). It is determined whether or not it represents a space (step S14).

  If the character code does not represent a space, the CPU 8 resets the continuous space storage flag F (step S15), and uses this character code as appropriate data in the data description file 7 ′ for program execution corresponding to the file 7. The data is stored in the database 6 of the hard disk drive 11 (step S18).

  On the other hand, if the determination result in step S14 is true and it is confirmed that the character code represents a space, the CPU 8 further determines whether the continuous space storage flag F has already been set at this time. In other words, it is determined whether or not the currently read space is the second and subsequent spaces (step S16).

  If the determination result in step S16 is false, it means that the space read this time is the first space or the first space that is continuous with normal characters, so the CPU 8 determines the continuous space storage flag. After setting F (step S17), assuming that this space is a valid character string, the character code representing this space is described in the data description for program execution corresponding to the file 7 as described above. As the appropriate data of the file 7 ', it is continuously stored in the database 6 of the hard disk drive 11 (step S18).

  On the other hand, if the determination result in step S16 is true, this means that the space read this time is the second and subsequent spaces, so the CPU 8 functioning as the data analysis means 5 Assuming that this space is an unnecessary character string, the process of step S18 is skipped, and the storage of the character code in the data description file 7 ′ for program execution corresponding to the file 7 is prohibited.

  Next, the CPU 8 determines whether or not the character code read this time is the last character code described in the file 7 (step S19). If it is not the last character code, it is temporarily stored in the RAM 10. One character code describing the next data is read from the file 7 after conversion of the existing character code (step S13). Then, until the last character code described in the file 7 is detected in the process of step S19, the CPU 8 functioning as the data analysis means 5 performs the processes of step S13 to step 18 in the same manner as described above. Run repeatedly.

  Therefore, when two or more spaces are continuously present in the character code converted file 7, only the character code describing the first space is recognized as a valid character string, and the continuous space is replaced with this. The character code to be described is deleted from the file 7 as an unnecessary character string by the data analysis means 5, and the file 7 from which the unnecessary character string has been deleted is stored in the database 6 as a data description file 7 'for program execution. It will be.

  Generally, those that use line feed (LF) for line feed processing, those that use carriage return (CR) due to differences in application programs such as computer operating systems and word processing software, or character codes, etc. Some use a combination of feed (LF) and carriage return (CR). When character code conversion is performed between them, a character string consisting of a large number of spaces having no substantial meaning may be generated. However, unnecessary character strings can be deleted by deleting consecutive spaces in this way.

  Finally, an application program that runs on the computer 1 instead of the data description file 7 ′ for program execution that has been subjected to appropriate character code conversion and deleted unnecessary character strings in place of the file 7 that is the original data, for example, Regardless of what character code the data in file 7 is written in by using word processor software or the like, application programs such as word processor software are used in the same way as with files created on computer 1 The processing operation performed can be executed accurately.

  In this embodiment, since the character code conversion for the file 7 is executed on the computer 1 that runs an application program such as word processing software, it is not necessary to prepare a separate computer for character code conversion. If the file 7 described in (1) already exists, it is possible to execute the program by using the file as it is by simply performing the above-described preprocessing on the file 7.

  In addition, since unnecessary character strings are deleted in advance before the execution of the application program, it is possible to prevent the malfunction of the application program and the occurrence of an abnormality accompanying the execution of the application program.

  The processing of the data analysis means 5 as shown in FIG. 7 is performed when the character code conversion is performed by the computer 1 (when the determination result of step S10 is false), or the character code conversion is performed by another computer. Since the file is executed in any case where the file with the matched character code is brought into the computer 1 (when the determination result in step S10 is true), the file 7 subjected to character code conversion in another computer is executed. It can also be used for debugging such as deleting unnecessary character strings.

  Here, as an example, the case where a series of spaces is recognized and deleted as an inadvertent character string has been described as an example. Depending on the characteristics of the program to be read, other character strings may be deleted as unnecessary character strings, and further, data format conversion or the like may be performed.

It is a functional block diagram showing an outline of a configuration of a computer with a character code conversion function to which the character code conversion method of the present invention is applied. It is the block diagram shown about the substantial structure of the computer with a character code conversion function. It is the conceptual diagram which showed an example of the character code table | surface used by the operating system of the computer with a character code conversion function. It is the conceptual diagram which showed an example of the character code table memorize | stored as a characteristic of the character code assumed as a character code of the data used as the object of reading. It is the conceptual diagram which showed another example of the character code table memorize | stored as a characteristic of the character code assumed as a character code of the data used as the object of reading. It is the flowchart which showed the outline of the preprocessing (program for character code conversion) which CPU of a computer with a character code conversion function performs. It is the continuation of the flowchart which showed the outline of the preprocessing (program for character code conversion) which CPU of a computer with a character code conversion function performs.

Explanation of symbols

1 computer with character code conversion function 2 data reading means 3 character code analyzing means 4 character code converting means 5 data analyzing means 6 database 7 file 8 CPU (character code analyzing means, character code converting means, data analyzing means)
9 ROM
10 RAM
11 Hard Disk Drive 12 Interface 13 Input / Output Circuit 14 Display 15 Keyboard 16 Mouse 17 Floppy Disk Drive

Claims (9)

A character code conversion method for adapting a character code describing the data to a computer operating system before the data described in the file is read by a program running on the computer,
Characteristic of the character code assumed as the character code of the data to be read is stored in the computer in advance,
As preprocessing for causing the program to read the data, the characteristics of the character code describing the data are compared with the characteristics of several types of character codes stored in the computer in advance. Identify the character code you are describing,
Performing character code conversion on the data so that the data described in the specified character code is described in a character code used in an operating system of the computer;
A character code conversion method characterized by holding a new file generated by character code conversion as a data description file for program execution.   2. The character code conversion method according to claim 1, wherein an unnecessary character string generated at the time of character code conversion is deleted and held as a data description file for program execution.   3. The character code conversion method according to claim 2, wherein at least a continuous space is deleted as an unnecessary character string.   4. The character code conversion method according to claim 1, wherein a character code table is stored as a character code characteristic assumed as a character code of data to be read.   When comparing the characteristics, when some of the character codes describing the data are extracted and the characters corresponding to the character codes are defined in the character code table, the character code describing the data is 5. The character code conversion method according to claim 4, wherein the character code is specified as a character code in the character code table. Character code analyzing means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance,
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer; A computer with a character code conversion function. Character code analyzing means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance,
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer; ,
A computer with a character code conversion function, comprising: data analysis means for analyzing the data whose character code has been converted by the character code conversion means and deleting unnecessary character strings. A character code conversion program for adapting a character code describing the data to a computer operating system before reading the data described in the file into a program operating on the computer,
Character code analysis means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance.
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer Character code conversion program to make it function. A character code conversion program for adapting a character code describing the data to a computer operating system before reading the data described in the file into a program operating on the computer,
Character code analysis means for identifying the character code describing the data by comparing the characteristics of the character code describing the data with the characteristics of the character code stored in the computer in advance.
Character code conversion means for converting the character code of the data so that the data described by the character code specified by the character code analysis means is described by the character code used in the operating system of the computer;
A program for character code conversion for functioning as data analysis means for analyzing data converted by the character code conversion means and deleting unnecessary character strings.

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