JPH07191983A - Character processor - Google Patents

Abstract

PURPOSE:To perform conversion without generating the change of the conversion field by setting the level to convert the HIRAGANA (cursive form of Japanese syllabary) reading string and converting a conversion candidate in the conversion field judged according to the setting level with the priority as the prescribed character string. CONSTITUTION:In an exclusive fixed reading memory ROM, the fixed data of a KANA/KANJI conversion dictionary, field dictionary with the field information of each word of the dictionary, and KANJI level dictionary with the learning level information of each KANJI are stored. In a writable RAM, the inputted reading string are stored. When the HIRAGANA reading string inputted from a keyboard KB is converted by the KANA/KANJI conversion dictionary, the conversion level is set and it is automatically judged to be the prescribed conversion field by the field dictionary according to the set conversion level. The inputted HIRAGANA reading string is converted by giving the priority to the conversion candidate in the conversion field as the prescribed character string. Thus, the change of the field of the document does not affect on the variability of the conversion field.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing device for creating a document, and more particularly to a document processing device having a function of converting a hiragana reading string into a predetermined character string.

[0002]

2. Description of the Related Art Conventionally, a document processing apparatus having a function of converting a hiragana reading string into a predetermined character string corresponds to a dictionary for converting the hiragana reading string into a predetermined character string, and each character string in the dictionary. A dictionary storing information on an application field, and a means for automatically determining the conversion field by using the means for storing the information on the application field when converting the input hiragana reading string into a predetermined character string by the dictionary storage means. Accordingly, a character processing device has been proposed that has a function of preferentially converting a hiragana reading string into a predetermined character string in the conversion field that is automatically determined when the document content is input.

[0003]

However, in this conventional apparatus, in order to preferentially convert the input hiragana reading string into a predetermined character string in the automatically discriminated conversion field, prior to the conversion work. However, there is a drawback that it requires input of more than a few phrases. In addition, when a document in the middle of input that is already stored in the external storage device is called from the external storage device to create a document, it is necessary to call the accompanying information of the conversion field from the external storage device or the like. There was a drawback.

Further, when converting the input hiragana reading string into a predetermined character string, the process of automatically discriminating the conversion field has a drawback that the conversion field is easily shaken due to the fluctuation of the field of the document itself. It was

It is an object of the present invention to immediately determine the field of a document by setting a conversion level, and preferentially convert an input Hiragana reading string into a predetermined character string within the conversion field. It is an object of the present invention to provide a character processing device that does not require the use of information in an external storage device for determining a field and does not cause a fluctuation in a conversion field due to a fluctuation in a field of a document itself.

[0006]

In order to achieve the above object, the present invention has a dictionary storing means for storing a dictionary for converting a hiragana reading string into a predetermined character string, and each character string of the dictionary. The means for storing information on the corresponding application field and the input hiragana using the means for storing the information on the application field when the inputted hiragana reading string is converted into the predetermined character string by the dictionary storage means. A means for automatically determining the conversion field of the reading string, a means for setting a level for converting the hiragana reading string into the predetermined character string, and the automatic discrimination when converting the input hiragana reading string into the predetermined character string. And a conversion unit for converting the input hiragana reading string into the predetermined character string according to the set conversion level. In the character processing device, by setting the level for converting the hiragana reading string into the predetermined character string to a predetermined level, the predetermined conversion field is automatically determined according to the set conversion level, and the automatic determination is made. The present invention is characterized by further comprising means for converting the input hiragana reading string by preferentially using a conversion candidate in the conversion field as the predetermined character string.

[0007]

According to the present invention, the means for setting the level for converting the hiragana reading string into the predetermined character string is used to set the level for converting the hiragana reading string into the predetermined character string to the predetermined level. According to the set conversion level, it automatically determines the predetermined conversion field, and the means for converting the hiragana reading string with the conversion candidate in the automatically determined conversion field preferentially as the predetermined character string immediately determines the field of the document. The input hiragana reading sequence is preferentially converted into a predetermined character string in the conversion field.

[0008]

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

FIG. 1 is a block diagram showing the overall construction of an embodiment of the present invention.

In the configuration shown in FIG. 1, the CPU is a microprocessor, performs arithmetic / logical judgments for character processing, address bus AB and control bus C.
B, each component connected to those buses is controlled via the data bus DB.

The address bus AB is a microprocessor C
An address signal for instructing a component to be controlled by the PU is transferred. The control bus CB transfers and applies a control signal to each component controlled by the microprocessor CPU. The data bus DB transfers data between the constituent devices.

The ROM is a fixed read-only memory. In this fixed memory ROM, a control procedure by a microprocessor CPU, which will be described later with reference to FIGS. 5 and 6,
Also, the fixed data of the Kana-Kanji conversion dictionary KNCNVDIC, which stores the dictionary to be referred when performing Kana-Kanji conversion, and the fixed data of the field dictionary BUNYADIC, which has application field information of each word of the Kana-Kanji conversion dictionary, and the learning level information of each Kanji. The fixed data of the Kanji level dictionary KALEVDIC is stored.

The field dictionary BUNYADIC is a dictionary that stores word reading information, notation information, part-of-speech information, and application field information, as will be described later with reference to FIG.

The Kanji level dictionary KALEVDIC is shown in FIG.
As will be described later, the dictionary stores kanji JIS code information and kanji level information.

The RAM is a writable random access memory having a structure of 1 word 16 bits, and is used for temporary storage of various data from each constituent element.

TEXT is a text buffer and is shown in FIG.
As will be described later, the documents handled in this embodiment are stored in an internal format.

KBBUF is a keyboard buffer for storing an input reading string.

BUNYASTA is conversion field state information data for storing a field to be preferentially converted in the Kana-Kanji conversion process.

YOMIBUF is a reading input buffer for storing the input reading of Kana-Kanji conversion.

KOUHOBUF is a candidate output buffer for storing conversion candidates created as a result of kana-kanji conversion processing.

KALEVSET is Kanji level setting data that stores the Kanji level set by the operator as to which level of Kana-Kanji conversion is to be performed, for example, at which level, such as in-use / out-of-use / sixth grade.

Reference numeral KB denotes a keyboard which has various functions for the present embodiment such as alphabet keys, hiragana keys, katakana keys and other character symbol input keys, and conversion keys, cursor movement keys, kanji conversion level keys, selection keys and the like. Equipped with various function keys for instructing.

DISK is an external storage for storing document data, and stores the document created in the text buffer TEXT, and the stored document is the keyboard KB.
Will be called when necessary.

CR is a cursor register. The contents of the cursor register CR can be read and written by the microprocessor CPU. CRT controller C described later
The RTC displays a cursor at a position on the display device CRT corresponding to the address stored here.

DBUF is a display buffer memory that stores a pattern of data to be displayed.

The content of the document data is displayed by developing a pattern in the display buffer memory DBUF based on the data in the text buffer TEXT.

The CRT controller CRTC plays a role of displaying the contents stored in the cursor register CR and the display buffer DBUF on the display CRT.

The CRT is a display device using a cathode ray tube or the like, and the display pattern of the dot configuration and the display of the cursor on the display device CRT are controlled by the CRT controller CRTC. Further, CG is a character generator, which stores patterns of characters and symbols to be displayed on the display device CRT.

The character processing apparatus according to the present embodiment, which is composed of the above-mentioned components, operates in response to various inputs from the keyboard KB, and when the input from the keyboard KB is supplied, first, An interrupt signal is sent to the microprocessor CPU, the microprocessor CPU reads various control signals stored in the ROM, and various controls are performed in accordance with those control signals.

FIG. 2 is a diagram for explaining the structure of a field dictionary BUNYADIC having application field information of each word in the Kana-Kanji conversion dictionary.

The field dictionary BUNYADIC has application field information of the Kana-Kanji conversion dictionary, and is composed of word reading information, notation information, part-of-speech information, and application field information. For example, for the reading information of the word “Ishi”, the notation information is “doctor”, the part-of-speech information is “noun”, and the application field information “medicine” is stored. This field dictionary BUN
The information is stored in the YADIC in the ascending order of the character code (JISX0208 code) of the word reading information.

FIG. 3 is a diagram for explaining the configuration of a Kanji level dictionary KALEVDIC having Kanji level information of each Kanji JIS code information.

The Kanji level dictionary KALEVDIC is composed of Kanji JIS code information and Kanji level information of each Kanji. The information is stored in the kanji level dictionary in the ascending order of the character code (JISX0208 code) of the kanji JIS code information. This kanji level information is: 1 for 1st grade elementary level, 2 for 2nd grade elementary level, 3 for 3rd grade elementary level, 4 for 4th grade elementary level, 5 for 5th grade elementary level. , 6th grade elementary level kanji, 6 regular internal level kanji, 7 regular non-standard level kanji are stored. For example, “7” is stored as the kanji level information for the kanji JIS code information “Mitsu (2262)”.

FIG. 4 is a diagram showing the structure of the text buffer TEXT.

The text is composed of a plurality of line data having a fixed length. Each line data is similarly composed of a plurality of character data. Each character data is composed of one character and two bytes, and is stored, for example, in JISX0208 code. The position of each character is specified by the Y coordinate indicating the line and the X coordinate indicating the character position within the line. For example, the character on the third line from the beginning of the text and the fourth character from the left is the X coordinate =
4, Y coordinate = 3 is designated. Similarly, the current position of the cursor is also managed by the X and Y coordinates.

Next, the operation of the above embodiment will be described with reference to FIGS.
It will be described according to the flowchart shown in FIG.

FIG. 5 is a process for selecting a kanji conversion level for kana-kanji conversion, a process for creating kana-kanji conversion candidates from reading input using the kana-kanji conversion dictionary KNCNVDIC, and changing the display priority of the created kana-kanji conversion candidates. 3 is a flowchart showing an outline of the entire processing such as processing for editing a candidate character string selected from the created kana-kanji conversion candidates into a text buffer TEXT.

First, in step S501, an input from the keyboard KB is awaited, and when the input is received, a process of fetching data into the keyboard buffer KBBUF is performed. Here, if the beginning of the keyboard buffer KBBUF is a hiragana key, the process branches to step S502, if it is a conversion key, it branches to step S503, and if it is a kanji conversion level key, it branches to step S504, the hiragana key, the conversion key, If the key is other than the Kanji conversion level key, no processing is performed and the process returns to step S501.

In step S502, reading is added to the reading input buffer, and the process returns to step S501.

In step S503, kana-kanji conversion processing is performed, as will be described later with reference to the flowchart of FIG.

In step S504, display processing of a kanji conversion level selection screen for selecting kanji conversion levels for kana-kanji conversion is performed, and the flow advances to step S505.

In step S505, an input from the keyboard KB is awaited, and when the input is received, a process of fetching the data into the keyboard buffer KBBUF is performed. Here, if the head of the keyboard buffer KBBUF is the up / down cursor key, the process branches to step S506, and if it is the select key, the process branches to step S507. If it is a key other than the up / down cursor key and the select key, no processing is performed. To step S5
Return to 05.

In step S506, a window display screen WDSP for selecting a kanji conversion level for kana-kanji conversion
The cursor position of is changed according to the input of the up / down cursor key, and the process returns to step S505.

In step S507, a process of storing the selected Kanji conversion level at the cursor position on the window display screen WDSP in the Kanji level setting data KALEVSET is performed.

If it is determined in step S508 that the Kanji level setting data KALEVSET is not for regular use, the process proceeds to step S509, where the Kanji level setting data KALEVS.
If ET is not in regular use, the process proceeds to step S510.

In step S509, the conversion field status information data BUNYASTA is set in the school.

In step S510, a process of removing the inside of the school from the setting of the conversion field state information data BUNYASTA is performed.

In step S511, processing for deleting the display of the Kanji conversion level selection screen is performed.

FIG. 6 shows the Kana-Kanji conversion dictionary KNCNVDI.
Use C to create Kana-Kanji conversion candidates from reading input,
Details of the process of changing the display priority of the created kana-kanji conversion candidates by the conversion field process, the process of editing the candidate character string selected from the kana-kanji conversion candidates into TEXT, the process of setting the conversion field, etc. will be described. It is a flowchart.

First, in step S601, a process for creating kana-kanji conversion candidates is performed, and conversion field status information BUN
A process of outputting the kana-kanji conversion candidates including the word having the field of YASTA to the candidate output buffer is given the highest priority.

In step S602, step S601
The process of narrowing down the conversion candidates of the candidate output buffer created in step 1 to the kanji in the kanji level setting data KALEVSET range is performed by searching the kanji level information in the kanji level dictionary KALEVDIC.

In step S603, conversion candidates are displayed in the order in which they are output to the candidate output buffer.

In step S604, the input from the keyboard KB is awaited, and when the input is received, the process of fetching the data into the keyboard buffer KBBUF is performed. Here, if the head of the keyboard buffer KBBUF is the up / down cursor key, the process branches to step S605, and if it is the select key, the process branches to step S606. If the key is other than the up / down cursor key and the select key, no processing is performed. Step S60
Return to 4.

In step S605, the character string group in the candidate output buffer created by the kana-kanji conversion candidate creation process is displayed on the window display screen WDSP, and the cursor position of the window display screen WDSP for selecting the candidate is changed by the up and down cursor keys. The processing for changing the input is performed according to the input of, and the process returns to step S604.

In step S606, a process of editing the selected character string in the text buffer TEXT is performed.

In step S607, the selected character string is edited on the display.

In step S608, the notation of the selected kana-kanji conversion candidate word and the field dictionary BUNYADIC
Perform processing to search for data that matches the notation information of.

In step S609, step S608
In step S610, it is determined whether or not there is matching data. If yes, the process proceeds to step S610;
Proceed to 611.

In step S610, step S608.
The field information of the field dictionary BUNYADIC that coincides with the above is stored in the converted field state information BUNYASTA.

In step S611, it is determined whether or not there is an undetermined segment. If not, the process ends, and if there is, the process proceeds to step S612.

In step S612, the output order of the kana-kanji conversion candidates including the word having the field of the conversion field state information BUNYASTA is given the highest priority, and the process of re-outputting to the candidate output buffer is performed, and the process returns to step S603.

Next, the operation of this embodiment described above will be explained using the screen displayed on the display device CRT.

FIG. 7 is a diagram showing a screen structure formed on the display device CRT of this embodiment.

In the figure, DSP indicates a display screen. T
S is a text screen on which the content of the document stored in the text buffer TEXT is displayed. KS is an area for displaying soft keys, in which necessary keys such as a conversion key, a cursor movement key, a kanji conversion level key, and a selection key are displayed depending on the operation situation. These displayed keys are used for input by the key at the corresponding position on the keyboard KB. The WDSP is a window display screen, and is an area for displaying a selection display for selecting a Kanji conversion level for Kana-Kanji conversion, a character string candidate created after the Kana-Kanji conversion process, and the like. YS is an area for displaying the kana-kanji conversion reading input.

FIGS. 8 to 12 show the operation of setting the Kanji conversion level to the non-usage and the case of setting the Kanji conversion level to the non-usage, that is, the case where the conversion field state information data is not set to "in school". It is a figure for explaining a screen transition such as an operation of kana-kanji conversion.

When the document processing apparatus can create a document (FIG. 8) and a Kanji conversion level key is input, a Kanji conversion level selection screen is displayed on the window display screen WDSP (FIG. 9).

Here, by the operator keying "select", the non-regular Kanji conversion level is selected, and the conversion field state information data is not automatically set to "in school". Then, the document processing apparatus returns to a state in which a document can be created. Therefore, when the operator reads with the Hiragana key and inputs, for example, "koso-ku", the input "koso-ku" is displayed in the area YS displaying the kana-kanji conversion read input. (FIG. 10).

When the operator inputs the conversion key, the kana-kanji converted character string candidates are displayed on the window display screen WDSP (FIG. 11). In FIG. 11, the conversion field state information data is not automatically set to “in school” and therefore does not affect the field processing of kana-kanji conversion, so “high speed” is first displayed as a conversion candidate in the order of frequency of use of words. , "Restriction" is displayed next, and the remaining "School Rules" are displayed subsequently.

Here, when the operator inputs "select" by key, "high speed" is input to the text buffer TEXT (FIG. 12).

FIGS. 13 to 18 show the operation of setting the Kanji conversion level within the regular use and the case where the Kanji conversion level is set within the regular use, that is, the conversion field state information data is “in school”.
FIG. 8 is a diagram for explaining a transition of a screen such as an operation of kana-kanji conversion in the case of being automatically set to.

When the Kanji conversion level key is input while the document processing apparatus can create a document (FIG. 13), a Kanji conversion level selection screen is displayed on the window display screen WDSP (FIG. 14).

Here, the operator moves the cursor position to the "usually used level" with the cursor movement key (FIG. 15).

Here, by the operator keying in "select", the Kanji conversion level is selected as the common internal level, and the conversion field status information data is automatically set to "in school". Then, the document processing apparatus returns to a state in which a document can be created. Therefore, when the operator reads with the Hiragana key and inputs, for example, "koso-ku", the input "koso-ku" is displayed in the area YS displaying the kana-kanji conversion read input. (FIG. 16).

When the operator inputs the conversion key, the kana-kanji converted character string candidates are displayed on the window display screen WDSP (FIG. 17). In FIG. 17, since the converted field status information data is automatically set to “in school”, “school rules” having field information of “in school” is displayed first,
Subsequently, conversion candidates of "high speed" and "restraint" are displayed in the order of frequency of use of words.

Here, when the operator inputs the "select" key, the "school rules" is input to the text buffer TEXT (FIG. 18). Then, since there is data in the field of school called "school rules" in the dictionary of the field dictionary BUNYADIC, the converted field state information data is continuously and automatically set to "in school".

In the above description, the process of selecting the kanji conversion level for kana-kanji conversion is performed, kana-kanji conversion candidates are created from the kana-kanji conversion dictionary KNCNVDIC from reading input, and the kana-kanji conversion candidates are displayed according to the kana-kanji conversion level of kana-kanji conversion. Regarding the priority order, it is possible to prioritize candidate character strings in the field of "in school" and edit the candidate character strings selected from the created Kana-Kanji conversion candidates into TEXT. I've explained.

Next, another embodiment of the present invention will be described. In this embodiment, when the kanji conversion level of kana-kanji conversion is set to "old font", candidate character strings in the field of "address book" are prioritized.

FIG. 19 is a flow chart showing the outline of the whole processing of this embodiment. This flowchart corresponds to the flowchart of FIG. 5 in the above-described embodiment.

In the flowchart shown in FIG. 19, the "display processing of the Kanji conversion level selection screen" in step S504 of FIG. 5 is changed to the "display processing of the old and new font conversion level selection screen" in step S1904, and the "selection" in step S507. Kanji level setting data KALE
The "store VSET processing" is changed to "store selected old and new font conversion level into old and new font conversion level setting data" in step S1907, and "whether the kanji level setting data is not in regular use" in step S508 is changed to step S1908.
Change to "Is the old / new font conversion level setting data old font?", And in the step S509, "Convert field status information data BU
"Set NYASTA in school" step S190
9 "Processing of setting conversion field status information BUNYASTA in address book", and "Process of removing school inside from setting of conversion field status information BUNYASTA" in step S510 "Conversion field status information in step S1910 The setting of the data BUNYASTA is changed to "processing for removing the address book", and the "display / erasure processing of the Kanji conversion level selection screen" in step S511 is performed in step S1911
It is realized by changing to the "display / erasure process of the old and new font conversion level selection screen". The other steps in FIG. 19 are similar to the corresponding steps in FIG.

Furthermore, when the kanji conversion level for kana-kanji conversion is set to "colloquial level", a candidate character string in the field of "colloquial" can be prioritized, which is another embodiment.

In this case, as shown in FIG. 20, among the steps of FIG. 5, the “display process of the Kanji conversion level selection screen” in step S504 is changed to the “display process of the colloquial conversion level selection screen” in step S2004. And step S5
Step 07: “Storing the selected kanji conversion level in kanji level setting data KALEVSET” 07
Change to "store selected colloquial conversion level in colloquial conversion level setting data" in step 7 and select "whether the kanji level setting data is not in regular use" in step S508 in step S20.
08 "Change the colloquial conversion level setting data is colloquial?", And change the conversion field state information data BU in step S509.
"Set NYASTA in school" step S200
9 “Processing of setting conversion field status information BUNYASTA in colloquial language”, and “Process of removing school inside from setting of modified field status information data BUNYASTA” in step S510 “Conversion field status information data in step S2010 The setting of BUNYASTA may be changed to the process of removing the spoken language, and the “display / erasure process of the Kanji conversion level selection screen” in step S511 may be changed to the “display / erasure process of the spoken language conversion level selection screen” in step S2011.

[0082]

As described above, according to the present invention,
By simply setting the level for converting the Hiragana reading string into a predetermined character string, the field of the document can be immediately determined, and the predetermined character string in the specific conversion field can be converted and given priority. Also,
When a document that is already being input is called from the external storage device to create a document, it is possible to eliminate the need to call the information in the conversion field from the external storage device or the like. Then, when converting the input Hiragana reading string into a predetermined character string, it is possible to prevent the fluctuation of the field of the document itself from affecting the fluctuation of the conversion field.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a field dictionary in this embodiment.

FIG. 3 is a diagram showing a configuration of a kanji level dictionary in the present embodiment.

FIG. 4 is a diagram showing a configuration of a text buffer in the present embodiment.

FIG. 5 is a flowchart showing a processing procedure of the character processing device according to the present embodiment.

FIG. 6 is a flowchart showing a processing procedure of the character processing device according to the present embodiment.

FIG. 7 is a diagram showing a screen configuration of the present embodiment.

FIG. 8 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 9 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 10 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 11 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 12 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 13 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 14 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 15 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 16 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 17 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 18 is an explanatory diagram for explaining the operation of the present embodiment.

FIG. 19 is a flowchart showing a processing procedure in another embodiment of the present invention.

FIG. 20 is a flowchart showing a processing procedure in still another embodiment of the present invention.

[Explanation of symbols]

 DISK external storage device CPU microprocessor ROM read only memory RAM random access memory KBBUF keyboard buffer BUNYASTA conversion field status information data TEXT text buffer YOMIBUF read input buffer KOUHOBUF candidate output buffer KNCCNVDIC Kana-Kanji conversion dictionary level VUNIKAL data

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mayumi Morita 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Chika Kogusu 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Daiki Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hitoshi Haruri 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Shuichi Morisawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hideyasu Suzuki 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Mariko Akiba 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Eiichiro Tojima 3-Chome Shimomaruko, Ota-ku, Tokyo No. 30-2 Canon Inc.

Claims (1)

[Claims] 1. A dictionary storage means for storing a dictionary for converting a hiragana reading string into a predetermined character string, and a means for storing information on an application field corresponding to each character string of the dictionary, Means for automatically determining the conversion field of the input hiragana reading string by means of storing information of the application field when the hiragana reading string is converted into the predetermined character string by the dictionary storage means; and hiragana reading string Means for setting a level for converting the specified character string to the predetermined character string, and when converting the input hiragana reading string to the predetermined character string, priority is given to a conversion candidate in the conversion field automatically determined by the automatic determination means. And a conversion means for converting the input hiragana reading string into the predetermined character string according to the set conversion level. By setting the level for converting to a character string to a predetermined level, the predetermined conversion field is automatically determined according to the set conversion level, and the conversion candidate in the automatically determined conversion field is preferentially specified to the predetermined level. A character processing device comprising means for converting the input hiragana reading string as a character string.