JP2728408B2 - Character processor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a character processing apparatus capable of attaching and detaching dictionary data storage means, for example, by inputting characters such as kanji while performing kana-kanji conversion. The present invention relates to a character processing device for creating and editing a document such as a word document. [Prior Art] In a character processing apparatus of this type which has been conventionally known, it is common to input a kanji in accordance with a kana-kanji conversion process, and for that purpose, dictionary data is indispensable. Usually, the dictionary data has a very large capacity, and is widely stored in an external storage device such as a floppy disk (hereinafter referred to as FD). Since the access time of the external storage device is slower than that of the internal storage device such as the main storage device, when the FD dictionary data is stored, a part of the dictionary data such as an index is loaded into the main storage device. In addition, speeding up access has been performed. When such a method is adopted, when the FD is exchanged, there is a danger that the contents of the dictionary data on the FD and the dictionary data on the main storage device will be inconsistent. Therefore, it is necessary to check whether or not the exchange of the dictionary data has been performed. If the fact that the exchange has been performed is detected, the dictionary data on the main storage device is cleared, and the dictionary data is loaded again from the FD. Must be performed. Therefore, conventionally, when it is determined that the FD has been taken out, the dictionary data stored in the main storage device is cleared, and then the FD is
Is set, the dictionary data stored in the FD is loaded into the main storage device. [Problems to be Solved by the Invention] However, in the dictionary replacement check based on the attachment / detachment check of the FD, if the FD is taken out and then the taken out FD is loaded again, the dictionary is actually exchanged. Despite the absence, it was determined that the dictionary was exchanged, which resulted in the inconvenience of loading dictionary data wastefully. In order to avoid such inconveniences, when loading dictionary data into the main storage device, specific identification information is set in both the FD and the main storage device, and when attachment / detachment of the FD is detected, from the FD again. A dictionary exchange check method in which the identification information is read and compared with the identification information in the main storage device to determine whether or not the same FD has been reset, may be considered. However, in such a dictionary exchange check method, FD
Since the desired identification information cannot be written when the write protection process is performed on the FD, it is difficult to determine the identity when the FD is remounted. Furthermore, the method of always writing identification information to the FD as described above is inconvenient in cases where data cannot be written such as when inspecting a product for shipment or borrowing and referencing a dictionary of another person. Accordingly, an object of the present invention is to provide a character that can reliably determine whether or not an external storage device is attached / detached even when a write-protect process is performed on an external storage device in which dictionary data is stored, in view of the above points. An object of the present invention is to provide a processing device. [Means for Solving the Problems] To achieve the above object, a character processing apparatus according to the present invention includes an internal storage unit, a detachable external storage unit for storing dictionary information, and an external storage unit. Loading means for loading dictionary information stored in the internal storage means,
A determination unit that determines whether the external storage unit is writable with the loading of the dictionary information by the loading unit. If the determination unit determines that the external storage unit is writable, the external storage unit and the internal storage unit The same identification information for identifying the dictionary information is written and set in the storage means. If the determination means determines that the dictionary information cannot be written, the identification information for identifying the dictionary information from the external storage means is set. ID information setting means for reading and setting the read identification information in the internal storage means, and setting in the external storage means prior to reference to dictionary information stored in the internal storage means. Identification information comparing means for reading out the identification information and comparing the identification information with the identification information set in the internal storage means; If the result of the comparison is a match, the dictionary information stored in the internal storage means is referred to; if not, the dictionary information is loaded by the loading means, and after the loading is executed, the dictionary information is stored in the internal storage means. And control means for controlling so as to refer to the obtained dictionary information. [Operation] According to the above configuration of the present invention, even if the external storage unit is once removed, if the same external storage unit is mounted again, it is possible to prohibit execution of useless loading of dictionary information. Further, loss of useful information in the internal storage means can be prevented by such useless loading. Further, when the external storage means is writable, the same identification information is set in the external storage means and the internal storage means with the loading of the dictionary information. In this case, the identification information is loaded into the dictionary information. It is not necessary to prepare the external storage means prior to the operation. On the other hand, when the external storage means is not writable, the identification information is read from the external storage means,
Since the read identification information is written and set in the internal storage means, it is possible to cope with a case where writing is impossible. EXAMPLES Hereinafter, the present invention will be described in detail based on examples. FIG. 1 is a block diagram showing one embodiment of the present invention.
In this embodiment, the removable external storage means A for storing dictionary data, the non-removable internal storage means B for storing dictionary data, and the dictionary data stored in the external storage means A are stored in the internal storage means B. , A character processing means D for processing input character data with reference to the loaded dictionary data, and a write protection detecting means E for detecting that the external storage means A is write protected. A first identification information setting means F for setting corresponding identification information in both the external storage means A and the internal storage means B when the write protection detection means E determines that write protection has not been applied when loading dictionary data. When it is determined that the write protection is applied, the identification information stored in the external storage means A is The second identification information setting indicating means G for setting the corresponding identification information in the internal storage means B, the detachment detection means H for detecting whether the external storage means A has been removed, and the external storage means A An identification information comparison means for comparing the stored identification information with the identification information stored in the internal storage means, and the identification information when the detachment of the external storage means is detected by the detachment detection means. Activate the comparison means I and determine whether the external storage means A has really been replaced. FIG. 2 is a block diagram showing the above embodiment more specifically. In the configuration shown in the figure, the CPU is a microprocessor, which performs operations for character processing, logical judgment, and the like, and performs address bus AB, control bus CB, and data bus DB.
It controls each component connected to those buses. The address bus AB transfers an address signal indicating a component to be controlled by the microprocessor CPU.
The control bus CB transfers and applies a control signal of each component to be controlled by the microprocessor CPU. The data bus DB transfers data between the constituent devices. ROM is a read-only fixed memory, and is shown in FIGS.
A procedure of control by a microprocessor CPU, which will be described later with reference to the drawing, is stored. The RAM is a writable random access memory having a configuration of 16 bits per word, and is used for temporarily storing various data from each component. This RAM includes the following areas. INDEX is an index of dictionary data, and the external storage device DISK
This area stores only the index part of the dictionary data above. KBBUF is a keyboard buffer area for storing input readings. MEMID is an identification information area stored in RAM for checking exchange of the dictionary. COUNT is a system counter area that is constantly updated internally. FDOUT is an external storage detachment flag area indicating whether the external storage DISK has been detached. KB is a keyboard and includes various function keys such as alphabet keys, hiragana keys, and katakana keys, and various function keys for instructing various functions to the character processing apparatus, such as conversion keys. DISK is an external storage device for storing document data and dictionary data. The DISK stores created documents, and the stored documents are called up when necessary according to keyboard instructions. The dictionary data is stored in the dictionary index I resident on the RAM.
According to NDEX, only the necessary parts are loaded into RAM each time and referenced. CR is a cursor register. The CPU reads and writes the contents of the cursor register. A CRT controller CRTC described later displays a cursor at a position on the display device CRT corresponding to the address stored here. DBUF is a display buffer memory for storing a pattern of data to be displayed. CRTC is cursor register CR and display buffer memory
It plays the role of displaying the contents stored in DBUF on the display CRT. The CRT has display device data using a cathode ray tube or the like, and the display pattern of a dot configuration and the display of a cursor on the display device CRT are controlled by a CRT controller CRTC. CG is a character generator and a display device CRT
The pattern of the character and the symbol displayed in is stored. A character processing device including such components is a keyboard.
It operates according to various inputs from KB. When an input is made from the keyboard KB, first, an interrupt signal is sent to the microprocessor CPU, which reads various control signals stored in the ROM, and performs various controls according to the control signals. Will be FIG. 3 is a diagram for explaining a storage format of dictionary data existing on a disk. The entire dictionary data contains identification information, indexes,
The dictionary consists of three parts. The dictionary body is divided into 200 blocks (each block is composed of 1024 bytes) according to the reading of each word. For example, when performing Kana-Kanji conversion, the necessary blocks are actually loaded on the memory and referenced. The index is a list of readings of words at the head of each block of the dictionary main body, and is data indicating in which block of the dictionary main body a word of a certain reading actually exists. The index is loaded into the memory area INDEX immediately after the system IPL, and is resident and referenced. The identification information is composed of 2 bytes, and is data for identifying at what point in time the dictionary is being used. The value is set when the index is loaded into INDEX from DISK. FIG. 4 is a diagram showing the configuration of the keyboard buffer KBBUF. Key data input from the keyboard KB is temporarily stored in this KBBUF. For example, in the case of Kana-Kanji conversion, the reading sequence is accumulated in this KBBUF until the conditions for conversion are satisfied, and converted into Kanji when the conversion conditions are satisfied, and the buffer is cleared. Character is one character using JIS C-6226 code, for example.
Stored in bytes. In the figure, "/" means a conversion key,
This means that the reading sequence stored up to “/” is converted to kanji. FIG. 5 is a diagram showing the configuration of main work variables used in this embodiment. MEMID is memory identification information and DIS
When the index of the dictionary on K is loaded into INDEX, it is set to have the same value as the identification information in the dictionary. COUNT is a system counter, and is a variable that stores the state at the time of the system. Normally, the value of this system counter is adopted as identification information when the dictionary index is loaded. FDOUT is an external storage detachment flag, which is reset to 0 when the dictionary index is loaded, and is set to 1 when the external storage DISK is taken out. The operation of the above embodiment will be described with reference to a flowchart. FIG. 6 is a flowchart showing the operation when the power is turned on to the system. In step 6-1, an IPL (initial program load) is performed, and a memory check, initialization of system variables, and the like are performed. In step 6-2, a dictionary index loading process is performed. At this point, the setting of the basic conditions for performing the document creation variables is completed. In step 6-3, editing processing is performed for actual editing. This step is detailed in FIG. FIG. 7 shows step 6-2 (see FIG. 6), step
10 is a flowchart showing in detail a dictionary index load shown in 10-4 (see FIG. 10). In step 7-1, the index of the dictionary data existing on the disk is read into INDEX on the RAM. In step 7-1, the index of the dictionary data existing on the disk is read into INDEX on the RAM. In step 7-2, it is checked whether the disk is write-protected. If the disk is protected, the process proceeds to step 7-3. If not, the process proceeds to step 7-4. In step 7-3, the value of the identification information of the dictionary on the DISK is set in the memory identification information MEMID, and in step 7-6.
Proceed to. In step 7-4, the value of the system counter COUNT is set to D
Write to the identification information of the dictionary on ISK. Further, in step 7-5, the value of COUNT is set in the memory identification information MEMID. Thereafter, the process proceeds to step 7-6. In step 7-6, the loading of the dictionary index has been completed and the data setting has been completed.
Clear OUT to 0. FIG. 8 is a flowchart showing in detail the editing process in step 6-3. Step 8-1 A is a process for taking in data from the keyboard into the KBBUF as described in detail in FIG. If the conversion key data is included in KBBUF (step 8-1B: Yes), step 8 is performed to perform kana-kanji conversion.
Go to -2. Otherwise, the process proceeds to step 8-5 to perform normal editing processing. In step 8-2, a dictionary exchange check detailed in FIG. 10 is performed in order to detect whether or not the dictionary exchange has been performed. If the exchange has been performed, the dictionary index is loaded by this processing. In step 8-3, a necessary block of the dictionary on the DISK for performing the kana-kanji conversion is obtained according to the dictionary index on the INDEX, and loaded into the RAM. In step 8-4, kana-kanji conversion is actually performed. Since the kana-kanji conversion technique itself is known, it will not be described here. In step 8-5, normal character processing such as cursor movement, character input, and document storage is performed. Since the technique is well known, the description is omitted. FIG. 9 is a flowchart for explaining step 8-1 (key input GET) in detail. At step 9-1, it is sensed whether key input is accumulated on the keyboard. If it is determined in step 9-2 that there is a key input as a result of key sensing, the process branches to step 9-3, and if there is no key input, the process proceeds to step 9-4. In step 9-3, the stored key data is
Register in KBBUF and return. In step 9-4, the system counter COUNT is incremented. By this processing, when the system in which no key input is performed is idle, the system counter is further incremented. In step 9-5, it is sensed whether the external storage device DISK has been removed, and if it has been removed, the process proceeds to step 9-6. If it has not been removed, the process returns to the key sense of step 9-1 again. FIG. 10 is a flowchart showing the dictionary exchange check in step 8-2 in more detail. In step 10-1, it is checked whether or not the disk has been detached by comparing whether or not the external storage / removal flag FDOUT is 1. If the attachment / detachment has been performed, the process proceeds to step 10-2. If not, the process returns. In step 10-2, identification information is read from the dictionary on the disk in order to compare the identification information. In step 10-3, the identification information read from the DISK dictionary is compared with the value of the memory identification information MEMID.
If they match, return as is. When they do not match, it is determined that the exchange of the dictionary has been performed, and the process proceeds to step 10-4. In step 10-4, the dictionary index loading described in FIG. 7 is performed, and the routine returns. Next, other embodiments will be described. In the above description, an example of writing the value of the system counter that counts inside the system as identification information has been described. However, this is not the case, and a value unique to each device, for example, a product number or each operator. The same effect can be obtained by writing the user ID or the like assigned to the. Alternatively, if the system has time information, the time information can be written as identification information. Although the area for writing identification information is an area provided in the dictionary, even if the area is completely unrelated to the dictionary,
The same is possible for an area within DISK. Furthermore, kana-kanji conversion is performed as processing using a dictionary, but the same applies to other processing, such as word registration. [Effects of the Invention] As described above, according to the present invention, it is determined whether or not the external storage means is writable in accordance with the loading of the dictionary information. The same identification information for identifying the dictionary information is written and set in the means and the internal storage means, and when it is determined that writing is not possible, the identification information for identifying the dictionary information is determined from the external storage means. The identification information read out is written and set in the internal storage means, and the identification information set in the external storage means is set prior to referring to the dictionary information stored in the internal storage means. The information is read and the identification information is compared with the identification information set in the internal storage means. If the comparison results in a match, the currently loaded dictionary information is referred to, and If there is a match, load the dictionary information and
Since the dictionary information after execution is referred to, even if the external storage unit is once removed, if the same external storage unit is mounted again, it is possible to prohibit the unnecessary loading of the dictionary information from being executed. . Further, loss of useful information in the internal storage means can be prevented by such useless loading. Further, when the external storage means is writable, the same identification information is set in the external storage means and the internal storage means with the loading of the dictionary information. In this case, the identification information is loaded into the dictionary information. It is not necessary to prepare the external storage means prior to the operation. On the other hand, when the external storage means is not writable, the identification information is read from the external storage means,
Since the read identification information is written and set in the internal storage means, it is possible to cope with a case where writing is impossible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing this embodiment more specifically, and FIG. FIG. 4, FIG. 4 shows a configuration of a keyboard buffer, FIG. 5 shows a configuration of other work variables, and FIGS. 6 to 10 each show a character processing device shown in FIG. 6 is a flowchart showing the operation of the first embodiment. DISK… External storage device, CPU… Microprocessor, ROM…
Read only memory, RAM… Random access memory, IND
EX: Dictionary index on memory, KBBUF: Keyboard buffer, MEMID: Memory identification information, COUNT: System counter, FDOUT: External storage removable flag.

Claims (1)

(57) [Claims] Internal storage means; detachable external storage means for storing dictionary information; loading means for loading dictionary information stored in the external storage means into the internal storage means; loading of the dictionary information by the loading means Along with, determining means for determining whether or not the external storage means is writable, and if the determining means determines that writing is possible, the dictionary information is stored in the external storage means and the internal storage means. The same identification information for identification is written and set, and when it is determined that the writing is not possible by the determination means, the identification information for identifying the dictionary information is read from the external storage means, and the read information is read. Identification information setting means for writing and setting identification information in the internal storage means; and referring to the external storage prior to referring to dictionary information stored in the internal storage means. An identification information comparison unit that reads the identification information set in the column and compares the identification information with the identification information set in the internal storage unit; and when the comparison result by the identification information comparison unit matches, Refers to the dictionary information stored in the internal storage means,
A character processing unit for performing a load of the dictionary information by the loading means if the data does not match, and controlling the reference to the dictionary information stored in the internal storage means after the loading is performed. apparatus.