JP4096504B2 - Data file management device and recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for managing a data file, and more particularly to a technique for managing a data file for which a deletion instruction has been given.
[0002]
[Prior art]
A file management function provided by various operating systems (OS) used in a computer system includes a “trash box” (also referred to as a trash box or a recycle bin by the OS). The recycle bin function temporarily moves a file for which a deletion instruction has been received to a predetermined folder (also referred to as a directory depending on the OS. This folder is hereinafter referred to as a “recycle bin folder”). For example, even if you accidentally instruct a file that you did not intend to delete, you can restore the original file because it is stored in the Trash folder. That's it.
[0003]
In general, the recycle bin function is turned on / off (whether deleted files are permanently deleted (discarded) without being moved to the recycle bin folder), the size of the recycle bin (storage capacity of the recycle bin folder), the location of the recycle bin ( The operation setting such as designation of the logical position of the trash box folder in the storage area of the storage device is possible.
[0004]
[Problems to be solved by the invention]
Conventionally, file management in the trash folder has been cluttered.
For example, after deleting a file (moving to the Trash folder), you notice that the deleted file contains reusable part data (for example, an image image or an icon image object embedded in a document file) Finds the deleted file from the trash folder, and opens the deleted file with a predetermined application to extract the desired part data into another file, and then stores the part file in another location on the storage device. It was time-consuming.
[0005]
In addition, since the storage capacity of the trash folder is limited, it is necessary to discard (delete) the stored deletion file in order to secure the free space of the trash folder. The recycle bin function generally has a function of discarding all deleted files in the recycle bin folder at one time. However, in some cases, it is desired to select deleted files to be discarded. At this time, a deleted file that is considered to have little influence even if discarded because the importance of the content is low or the deletion date is old, or a deleted file with a particularly large file size is selected and discarded. However, since the recycle bin folder does not have a hierarchical structure and the deleted files are managed in a flat manner, the selection of the discarded files is complicated.
[0006]
Further, when a certain file is repeatedly updated, a plurality of deleted files with the same name having different deletion dates and times exist in the trash folder. In such a work to discard deleted files, even if one file is discarded, other files with the same name remain stored, so deleting the same name to ensure free space in the Recycle Bin folder. The process of discarding all the files required a lot of work.
[0007]
In view of the above problems, it is an object of the present invention to provide a method for managing a data file to be deleted in a computer system having a function of temporarily storing a data file instructed to be deleted.
[0008]
[Means for Solving the Problems]
According to the data file management device of the present invention, in response to an instruction for deleting a data file, an object designating unit that preliminarily designates the type of object to be extracted from the data file to be deleted , and the data file management device that is the target of the instruction An object extracting means for detecting the presence or absence of an object of a type specified in advance by the object specifying means and extracting an object of a type specified in advance, and a recycle file storing the object extracted by the object extracting means A file processing unit that deletes the data file to be deleted that has been instructed to be generated, and reads out the object from the recycle file in response to an instruction to reuse the generated recycle file and displays a list and, re-use designation And having a processing means for storing an object to use the destination data file.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing the overall configuration of an information processing apparatus that implements the present invention. An information processing apparatus 10 shown in FIG. 1 includes a CPU 1, an input unit 2, a display unit 3, a communication control unit 4, a RAM 5, a ROM 6, and an external storage device 7 including a storage medium 8. These are buses. 9 and can exchange data with each other.
[0021]
The CPU 1 is a central processing unit that controls the overall operation of the information processing apparatus 10 while using the RAM 5 as a work area in accordance with a control program stored in the ROM 6.
The input unit 2 includes a mouse, a keyboard, and the like. When operated by a user of the information processing apparatus 10, various instructions from the user corresponding to the operation are input.
[0022]
The display unit 3 performs display according to an instruction from the CPU 1 and presents various information to the user of the information processing apparatus 10.
The communication control unit 4 connects the information processing apparatus 10 to a communication line to enable data exchange between the CPU 1 and a device connected to the communication line.
[0023]
The RAM 5 is a random access memory used as a work area necessary for the CPU 1 to execute control processing and for storing various setting parameters.
The ROM 6 is a read-only memory in which a control program for controlling the entire information processing apparatus 10 executed by the CPU 1 is stored in advance.
[0024]
The external storage device 7 is a magnetic disk device including a storage medium 8 such as a magnetic disk, and stores various data.
Next, FIG. 2 will be described. The figure shows the data structure of a data file used in the information processing apparatus 10.
[0025]
As shown in FIG. 2, this data file is roughly divided into three parts: a header part, a document data part, and an object data part.
The header part is the part where the creation information of this data file is stored. File name, file size, creation date / time, (most recent) update date / time, file type (information identifying the application program that created this data file) Each information is stored.
[0026]
The document data portion is a portion in which document data representing rule information, ruled line data, and the like are stored.
The object data part is a part in which objects (image data, icon image data, table data, etc.) embedded in the data file are stored. For each object, the object type (image, icon,...) Information indicating the positions to be embedded and object data are stored.
[0027]
Next, FIG. 3 will be described. The figure shows an example of a setting screen for making various settings for the recycle file in the trash can function available in the information processing apparatus 10. The contents (recycling method) set on this screen are managed as information on the properties (attributes) of the trash can.
[0028]
Here, the recycle file is a file created in order to extract and store objects included in various data files. Since the object stored in this file can be reused as component data for creating another data file, the name “recycle file” is given to this file.
[0029]
In the figure, the name of the folder for storing the recycle file is set in the column of (1) “recycle storage destination”.
In addition, the file name of the recycle file is set in the column of {circle around (2)} “recycle file name”.
[0030]
{Circle around (3)} In the “type of recycle file” field, the file format of the recycle file to be created is set by selecting the name of the application program that generates the data file of the same file format.
(4) “Recycling target file type” is set with the type of data file from which the object is extracted. In the example of FIG. 3, a spreadsheet data file, a presentation data file, and a document data file are set as data files to be extracted.
[0031]
(5) “Recycled object type” is set to the type of object extracted from the data file set in (4) above. In the example of FIG. 3, the bitmap image is set as the type of object to be extracted.
Next, FIG. 4 will be described. FIG. 3 is a flowchart showing the contents of the data file deletion process performed by the CPU 1 of the information processing apparatus 10. In the data file deletion process, in response to a data file deletion instruction, the object data is read from the data file to be deleted, the object data is stored in the recycle file, and then the data file to be deleted is moved to the normal trash folder And save it.
[0032]
Various processes performed by the CPU 1 to be described later including the data file deletion process are realized by the CPU 1 executing a control program stored in the ROM 6.
The data file deletion process is started when a data file deletion instruction is given to the input unit 2. First, in S101, the setting contents of the recycling method in the properties of the recycle bin (for the screen shown in FIG. 3). Set content) is acquired.
[0033]
In S102, it is determined whether or not the folder set as (1) “recycle storage destination” in the setting contents acquired in the processing of the previous step exists in the storage area of the storage medium 8, and the determination result is No. Only in this case, the folder is created in the storage area of the storage medium 8 in S103.
[0034]
In S104, it is determined whether or not the data file to be deleted in the data file deletion instruction is a data file set as (4) “recycling target file type” among the setting contents acquired by the processing in S101. If the determination result is Yes, the process proceeds to S105, and if No, the process proceeds to S113.
[0035]
In S105, a process of reading data in the object data portion (see FIG. 2) from the data file to be deleted is performed.
In S106, it is determined whether or not the existence of the object data is confirmed in the data file to be deleted in the reading process in the previous step. If the determination result is Yes, the process proceeds to S107, and if it is No, the process proceeds to S113.
[0036]
In S107, whether or not the type of the object existing in the data file to be deleted matches the type of the object set as (5) “recycled object type” among the setting contents acquired by the processing in S101. If the determination result is Yes, the process proceeds to S108. On the other hand, if this determination result is No, the process returns to S106, and it is determined whether or not data of another object exists in the data file to be deleted.
[0037]
In S108, (2) “Recycling file name” and (3) “Recycling file type” are stored in the folder set as (1) “Recycling destination” in the setting contents acquired in the processing of S101. It is determined whether or not there is a recycle file that matches the setting of each field. If the determination result is Yes, the process proceeds to S109, and if it is No, the process proceeds to S111.
[0038]
In S109, the recycle file is read. In subsequent S110, the data of the object that has been determined in S107 and S108 is read from the data file to be deleted, and the object data read after the object data group stored in the recycle file is read. Data is added and recorded and stored in the recycle file. After this processing is completed, the process returns to S106, and it is determined whether or not data of another object exists in the data file to be deleted.
[0039]
In S111, the recycle file that matches the settings in (2) “Recycle file name” and (3) “Recycle file type” among the settings acquired in S101 is (1) “Recycle storage destination”. It is newly created in the folder set as “”. In subsequent S112, the data of the object that has been determined in S107 and S108 is read from the data file to be deleted, and the read object data is recorded and stored in the recycle file. After this processing is completed, the process returns to S106, and it is determined whether or not data of another object exists in the data file to be deleted.
[0040]
In S113, without reading out the object data, the data file to be deleted is moved to and saved in the trash box folder, and the data file deletion process ends.
FIG. 5 shows the data structure of the recycle file created by the data file deletion process described above. As can be seen from a comparison of FIG. 2 with FIG. 2, the data structure of the recycle file is the same as the data structure of the data file used in the information processing apparatus 10, and the data in the document data portion is unused (the data is stored). The only difference is that it is not. The example of FIG. 5 is “Report Report. FIG. 5 shows a case where an object which is image data is read from the data file “doc” and additionally recorded and stored at the end of the recycle file shown in FIG.
[0041]
Next, FIG. 6 will be described. FIG. 2 is a flowchart showing the contents of the recycling process performed by the CPU 1 of the information processing apparatus 10. The recycling process is a process of reading out data of a desired object from the recycling file and providing it to the data file of the usage destination in response to the object reuse request.
[0042]
The recycling process is started when an object reuse request is made to the input unit 2. First, the recycling file is read from the storage medium 8 in S 201, and the object data read in the subsequent S 202 is read. Are displayed as a list on the display unit 3. In this list display, for example, icons, images, tables, and the like corresponding to the type of the object are displayed on the display unit 3.
[0043]
Thereafter, an input indicating whether there is any object to be reused exists in the object data displayed as a list in the process of the previous step is input to the input unit 2, and the content of the input is determined in S203. As a result of the determination process, if the input indicates that there is object data to be reused, the process proceeds to S204. If not, the process proceeds to S205.
[0044]
In S204, data on the object to be reused selected from the list display described above according to the input instruction to the input unit 2 is read from the recycle file, and the object data is embedded in the data file that is the use destination. Stored. Thereafter, the recycling process ends.
[0045]
In S205, it is determined whether or not all object data included in the recycle file has been displayed on the display unit 3, and if the determination result is Yes, the recycle process ends. On the other hand, if this determination result is No and undisplayed object data still remains in the recycle file, the process returns to S201 and the above-described processing is repeated.
[0046]
The above processing is the recycling processing, and the object included in the data file deleted (moved to the trash folder) by this processing is reused.
Hereinafter, other embodiments of the present invention will be described. In order to distinguish from the following embodiments, the above-described embodiment of the present invention will be referred to as a “first embodiment”.
[0047]
In the second embodiment of the present invention to be described below, when the data file to be deleted is moved and stored in the trash folder in the data file deletion processing in the first embodiment (the processing of S113 in FIG. 4), a predetermined value is used. Under this condition, the data file to be deleted is sorted and saved.
[0048]
The configuration of the information processing apparatus that implements the second embodiment may be the same as that shown in FIG.
With respect to the second embodiment, FIG. 7 will be described. The figure shows an example of a setting screen for making various settings for the method of sorting deleted files in the trash can function available in the information processing apparatus 10. The contents set on this screen are also managed as property information of the trash can.
[0049]
In the setting example of the deletion file sorting method shown in FIG. 7, either “size unit” or “deletion date unit” can be selected, and if neither is selected, the data to be deleted It is selected not to separate the files.
In the file classification by “size unit”, the data file is classified according to the data amount (data size) of the data file to be deleted. As shown in the example of FIG. ”Is set to“ 10M ”, folders for each data size, such as 0 to 10M, 10 to 20M, 20 to 30M,... Are provided in the recycle bin folder, and data files to be deleted are stored. It is stored and saved in the corresponding folder according to the data size.
[0050]
In the file separation by “deletion date unit”, the data file is sorted according to the deletion date of the data file to be deleted (movement date to the trash folder), as shown in FIG. If “interval” is set to “YYYYMM” as in the example, a folder for each deletion date is provided in the recycle bin folder, and the data file to be deleted corresponds to the deletion date. Stored in and saved.
[0051]
Next, FIG. 8 will be described. FIG. 2 is a flowchart showing the processing contents of the deletion target data file sorting and saving process performed by the CPU 1 of the information processing apparatus 10. The deletion target data file sorting and saving process is a process of sorting and saving the deletion target data file under a predetermined condition.
[0052]
The deletion target data file sorting and saving process is started when a data file deletion instruction is given to the input unit 2. Alternatively, if the deletion target data file sorting and saving process is performed in the first embodiment described above, it is performed in the process of S113 of the data file deletion process (FIG. 4).
[0053]
First, in S301, the setting contents of the sorting method (contents set for the screen shown in FIG. 7) among the properties of the trash can are acquired.
In S302, it is determined whether or not “size unit” is selected as the classification method among the setting contents acquired in the process of the previous step. If the determination result is Yes, the process proceeds to S303. If the determination result is No, the process proceeds to S304. move on.
[0054]
In S303, the data size of the data file to be deleted is acquired, and the size value is divided by the set value of “interval” for “size unit” in the setting contents acquired by the processing of S301, and the quotient A character string indicating a value obtained by multiplying the value obtained by adding 1 to the value obtained by multiplying the value set by the “interval” is obtained, and this character string is acquired as the folder name. Thereafter, the process proceeds to S306.
[0055]
The process of S303 will be described with a specific example.
For example, if the “interval” is set to “10M” for the folder name acquired for the data file to be deleted whose data size is 35M,
35M ÷ 10M = 3. ...
(3 + 1) × 10M = 40M
Thus, “40M” is acquired as the file name.
[0056]
In S304, it is determined whether or not “deletion date” is selected as the classification method among the setting contents acquired in the process of the previous step. If the determination result is Yes, the process proceeds to S305. If the determination result is No, the process proceeds to S309. , Go on each.
In S305, for the data file to be deleted, the date when the deletion instruction is given to the data file is acquired, and “date of deletion” in the setting contents acquired by the processing of S301 out of the date is acquired. A character string indicating only a portion corresponding to the setting of “interval” is obtained, the character string is acquired as a folder name, and thereafter, the process proceeds to S306.
[0057]
The process of S305 will be described with a specific example. For example, the folder name acquired for the data file instructed to be deleted on June 20, 2000 has an “interval” of “YYYYMM”, that is, “year / month”. If set, “200006” is acquired as the folder name.
[0058]
In S306, it is determined whether or not there is a folder having a name that matches the folder name acquired by the process of S303 or S305 immediately before in the trash folder secured in the storage area of the storage medium 8. Only when the determination result is No (no such folder exists), in S307, a new folder is created with the folder name acquired by the immediately preceding S303 or S305 processing as the folder name.
[0059]
In S308, the data file to be deleted is moved into a folder whose folder name is the folder name acquired in the immediately preceding S303 or S305, stored therein, and stored. After this process, the deletion target data file sorting and saving process ends.
[0060]
In S309, the data file to be deleted is moved to the trash box folder secured in the storage area of the storage medium 8, stored therein, and stored. After this process, the deletion target data file sorting and saving process ends. At this time, the data file to be deleted is stored in the trash folder, not in the folder existing in the trash folder.
[0061]
The processing described so far is the deletion target data file sorting and saving processing. By performing this processing, the sorting target data file can be sorted and saved in the trash box folder.
Next, a third embodiment of the present invention will be described. In the third embodiment, when a data file is erased from the trash folder (deletion from the trash folder is hereinafter referred to as “disposal”), the data file having the same name as that to be discarded is stored in the trash folder. If there are a plurality of files, the data files with the same name are discarded together.
[0062]
The configuration of the information processing apparatus that implements the third embodiment may be the same as that shown in FIG.
With respect to the third embodiment, FIG. 9 will be described. The figure shows an example of a setting screen for making various settings for the data file discarding method in the trash can function available in the information processing apparatus 10. The contents set on this screen are also managed as property information of the trash can.
[0063]
In FIG. 9, (1) “When the same file name occurs in the recycle bin” column, when discarding a data file from the recycle bin folder, if there are multiple data files with the same name as the one to be discarded in the recycle bin folder The user selects whether to discard the data files with the same name “collectively” or “individually” (no collective discard).
[0064]
Note that the column {circle over (2)} in FIG. 9 relates to a fourth embodiment to be described later and will be described later.
Next, FIG. 10 will be described. FIG. 2 is a flowchart showing the contents of the discard process performed by the CPU 1 of the information processing apparatus 10. The discard process is a process for discarding the data file in the trash box folder.
[0065]
The discarding process is started when a request for discarding the data file is made to the input unit 2, and first, in S401, the file name of the data file that is the object of the discarding request is acquired.
In the subsequent S402, the setting contents of the data file discarding method (contents set for the screen shown in FIG. 9) in the trash box properties are acquired, and (1) “Recycle bin when the same file name occurs” column is acquired. The settings are acquired. In S403, it is determined whether “individual” or “collective” is selected for the setting contents. If “individual” is selected, “collective” is selected in S409. If so, the process proceeds to S404.
[0066]
In S404, the storage area of the storage medium 8 is searched, all the file names of data files stored in the trash folder are read, and a list of the file names is acquired.
In S405, it is determined whether or not there are any remaining file names that are not subjected to the determination process in S406 among the file names indicated in the list acquired by the process in S404, and if the determination result is Yes. If it is No, the process proceeds to S409.
[0067]
In S406, it is determined whether or not the file name indicated in the list acquired by the process of S404 matches the data file name to be discarded acquired by the process of S401. Only the matching data file is discarded in S407 (erased from the trash folder).
[0068]
In S408, in order to perform the above-described determination processing of S406 for all the file names shown in the list acquired by the processing of S404, the reference position of the list is advanced, and thereafter, the processing returns to S405 and returns to the schedule. The process described above is repeated.
[0069]
In step S409, the data file to be discarded acquired by the processing in step S401 is discarded, and then the discarding process ends.
The above processing is the discarding process, and by performing this process, it is possible to discard the data file having the same name as that to be discarded.
[0070]
Next, a fourth embodiment of the present invention will be described. In the fourth embodiment, when all data files stored in the recycle bin folder are discarded (empty the recycle bin), there is a data file including a predetermined character string in the file name in the recycle bin folder. Is to leave the data file without discarding it.
[0071]
The configuration of the information processing apparatus that implements the fourth embodiment may be the same as that shown in FIG.
Regarding the fourth embodiment, in the example of the setting screen shown in FIG. 9, in the column of “2” “file name key not to be discarded when emptying the trash box”, a character string as a condition for leaving the data file without discarding is displayed. Is set. In the example shown in the figure, in response to a “empty trash box” request, a data file including a character string “important” in the file name is left without being discarded.
[0072]
Next, FIG. 11 will be described. FIG. 2 is a flowchart showing the contents of the total discard process performed by the CPU 1 of the information processing apparatus 10. The all discard process is a process for discarding all the data files that do not meet a predetermined condition, which are data files in the trash box folder.
[0073]
The total disposal process is started by requesting the input unit 2 to “Empty the Recycle Bin” (discarding all data files stored in the Recycle Bin folder). First, in S501, The setting contents of the data file disposal method in the properties (the contents set for the screen shown in FIG. 9) are acquired, and column (2) “File name key not discarded when emptying the recycle bin” The setting contents of are acquired.
[0074]
In subsequent S502, the storage area of the storage medium 8 is searched, all the file names of the data files stored in the trash folder are read, and a list of the file names is acquired.
In S503, it is determined whether there are any remaining file names that are not subjected to the determination process in S504, among the file names indicated in the list acquired in S502, and if the determination result is Yes. If NO in step S504, the total discard process ends.
[0075]
In S504, it is determined whether or not the character string that is the file name key that is not discarded and acquired in the process of S501 is included in the file name shown in the list acquired in the process of S502. As a result, only the data file having the file name that does not include the character string that is the file name key that is not discarded is discarded (deleted from the trash folder) in S505.
[0076]
In S506, in order to perform the above-described determination processing in S504 for all the file names shown in the list acquired by the processing in S502, the reference position of the list is advanced, and thereafter, the processing returns to S503 and described above. The process is repeated.
The process up to this point is the total discard process. By performing this process, a specified character string is used as the file name in response to the discard (empty recycle bin) instruction for all data files stored in the recycle bin folder. It is possible to leave the data files included in the file without discarding them and discard all others.
[0077]
In addition, a control program for causing a general-purpose computer to perform the processing performed by the CPU 1 of the information processing apparatus 10 shown in FIG. 4, FIG. 6, FIG. 8, FIG. Then, the program can be stored in a computer-readable storage medium, the program is read from the storage medium and executed by the computer, and the present invention can be executed by a general-purpose computer.
[0078]
An example of a storage medium from which the stored control program can be read by a computer is shown in FIG. As shown in the figure, as the storage medium, for example, a storage device 12 such as a ROM or a hard disk device provided in the computer 11 as an internal or external accessory device, a floppy disk, an MO (magneto-optical disk), a CD-ROM A portable recording medium 13 such as a DVD-ROM can be used.
[0079]
The storage medium may be a storage device 16 included in the program server 15 which is a computer connected to the computer 11 via the network 14. In this case, a transmission signal obtained by modulating a carrier wave with a data signal representing a control program is transmitted from the program server 15 through the network 14 which is a transmission medium, and the computer 11 demodulates the received transmission signal and performs control. The control program can be executed by reproducing the program.
[0080]
【The invention's effect】
According to the present invention, in response to an instruction to delete a data file, the object included in the deletion target data file that is the target of the instruction is extracted, and a data file including the object extracted by the extraction is generated. The object contained in the deleted data file can be reused.
[Brief description of the drawings]
FIG. 1 is a diagram showing an overall configuration of an information terminal device implementing the present invention.
FIG. 2 is a diagram illustrating a data structure of a data file.
FIG. 3 is a diagram illustrating an example of a setting screen for a recycle file.
FIG. 4 is a flowchart showing the contents of a data file deletion process.
FIG. 5 is a diagram illustrating a data structure of a recycle file.
FIG. 6 is a flowchart showing the contents of a recycling process.
FIG. 7 is a diagram illustrating an example of a setting screen for a data file sorting method;
FIG. 8 is a flowchart showing the contents of a deletion target data file sorting and saving process;
FIG. 9 is a diagram showing an example of a setting screen for a data file discarding method.
FIG. 10 is a flowchart showing processing details of a discarding process.
FIG. 11 is a flowchart showing the processing contents of a total discard process.
FIG. 12 is a diagram illustrating an example of a storage medium in which a stored control program can be read by a computer.
[Explanation of symbols]
1 CPU
2 Input unit 3 Display unit 4 Communication control unit 5 RAM
6 ROM
7 External storage device 8 Storage medium 9 Bus 10 Information processing device 11 Computer 12, 16 Storage device 13 Portable storage medium 14 Network 15 Program server

Claims (5)

An object specifying means for specifying in advance the type of object to be extracted from the data file to be deleted ;
In response to an instruction to delete the data file, the presence / absence of an object of a type specified in advance by the object specifying unit is detected from the data file to be deleted that is the target of the instruction, and an object of the type specified in advance is detected. An object extracting means for extracting;
A file processing means for generating a recycle file storing the object extracted by the object extracting means , and for deleting the deletion target data file instructed to be deleted;
Processing means for reading out objects from the recycle file and displaying them in a list in response to an instruction for reusing the generated recycle file, and storing the object designated for reuse in the data file of the use destination. Feature data file management device. The recycle file generated by the file processing means further includes object storage means for storing the extracted object,
The object storage means stores the extracted object in a storage location in the data storage area designated in advance in the data storage area of the recycle file. The data file management device described in 1.   The data file management apparatus according to claim 1, wherein the file processing unit generates the recycle file having a preset file name.   And further comprising an object adding means for adding another object to the recycle file and storing it when another object is extracted by the object extracting means after the recycle file is generated by the file processing means. The data file management apparatus according to claim 1, wherein: Computer
An object designating means for designating in advance the type of object to be extracted from the data file to be deleted ;
In response to an instruction to delete the data file, the presence / absence of an object of a type specified in advance by the object specifying unit is detected from the data file to be deleted that is the target of the instruction, and an object of the type specified in advance is detected. Object extraction means to extract,
A file processing means for generating a recycle file storing the object extracted by the object extracting means, and for deleting the data file to be deleted instructed to delete;
Processing means for reading out objects from the recycle file and displaying a list in accordance with an instruction for reusing the generated recycle file, and storing the object designated for recycle in the data file of the use destination
A computer-readable recording medium on which a program for functioning as a computer is recorded.

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