JPH04332073A - Method and device for processing character - Google Patents

Abstract

PURPOSE:To improve the complexity of operation due to the conversion of a different form character. CONSTITUTION:A KANA (Japanese syllabary) character string inputted from a keyboard(KB) 7 is converted by referring a KANA/KANJI (Chinese character) dictionary and the converted character string is displayed on the screen of a CRT 12 as a conversion candidate. Whether uncommon KANJIs stored in an uncommon KANJI identifying dictionary are included in the character string or not is checked, and when an uncommon KANJI is included, different form character conversion is applied to the uncommon KANJI by referring a different form character dictionary and the different form converted character string is displayed on the screen of the CRT 12 as another conversion candidate. Since a KANJI having high difficulty in reading and included in a KANA/ KANJI converted character string is automatically converted into a KANJI having low difficulty in reading, operability following the different form character conversion can be improved.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing method and apparatus, and more particularly to a character processing method and apparatus for converting a hiragana reading sequence into a predetermined character string.

0002

[Background Art] In a document processing device that has a function of converting a conventional hiragana reading string into a kana-kanji character string and also converting the obtained character string into a variant character string, a character string obtained as a result of kana-kanji conversion is used. If there is a variant kanji that is difficult to read (hard to read) as a conversion candidate, the
Editing was performed on variant kanji (hard to read) to obtain kanji that were less difficult to read (easier to read). In other words, after searching for kanji that are highly difficult to read using a dictionary that stores information about the difficulty of reading kanji, we search for kanji that are difficult to read using a dictionary that shows the relationship between kanji that are highly difficult to read and their variant characters that are less difficult to read. The conversion process was performed to lower (easier to read) kanji.

0003

[Problem to be solved by the invention] However, in the above conventional example, when converting a kanji with a high degree of difficulty to read (hard to read) to a kanji with a low degree of difficulty in reading (easy to read), the cursor is moved to the character position where the variant character conversion is to be performed. However, there was the inconvenience of having to perform different character conversion.

[0004] Furthermore, if the operator does not know the relationship between variant characters between kanji that are highly difficult to read (hard to read) and kanji that are less difficult to read (easy to read), even with the above conventional example, , it was not possible to obtain the desired character, and the desired character string had to be input by inputting single kanji characters.

[0005] Therefore, in any of the above cases, the operation becomes complicated and erroneous input is likely to occur, which poses a major problem in terms of operability.

The present invention has been made in view of the above-mentioned conventional example, and provides a character processing method and apparatus thereof that can automatically perform variant character conversion and present characters with low readability (easy to read) as conversion candidates. The purpose is to

[0007]

Means for Solving the Problems In order to achieve the above object, the character processing method of the present invention comprises the following steps. That is, a kana-kanji dictionary that stores hiragana reading strings and kana-kanji character strings corresponding to the hiragana reading strings, a variant dictionary that stores kana-kanji strings and variant kana-kanji strings that correspond to the kana-kanji strings, and kanji dictionary. In a character processing method using a difficulty level dictionary storing difficulty level information, an input step of inputting a hiragana reading string, an instruction step of instructing to convert the hiragana reading string input in the input step to kana-kanji, a conversion step of converting the hiragana reading string input in the input step into a kana-kanji character string based on the instruction in the instruction step; and a conversion step of converting the kana-kanji character string converted in the conversion step. a first displaying step of displaying, a searching step of searching using the difficulty level dictionary to determine whether or not the Kana-Kanji character string converted by the conversion step includes kanji with a high degree of difficulty in reading; a variant character conversion step of converting the highly difficult to read kanji into a less difficult to read kanji using the variant character dictionary when a kanji with a high degree of difficulty in reading is searched for in the kana-kanji character string, and conversion by the conversion step; a second displaying step of replacing and displaying the highly difficult-to-read kanji included in the converted kana-kanji character string with the less difficult-to-read kanji converted by the variant character conversion step. A processing method is provided.

According to another invention, there is provided a kana-kanji dictionary that stores a hiragana reading sequence and a kana-kanji character string corresponding to the hiragana reading sequence, and a kana-kanji character string that stores a kana-kanji character string and a variant character string that corresponds to the kana-kanji character string. In a character processing device, the character processing device has a dictionary of variant characters stored therein and a difficulty level dictionary storing difficulty level information of kanji characters, an input means for inputting a hiragana reading sequence, and a kana-kanji conversion of the hiragana reading sequence inputted by the input means. a converting means for converting the hiragana pronunciation inputted by the input means into a kana-kanji character string based on the kana-kanji dictionary based on the instruction by the instruction means; and the converting means a first display means for displaying the kana-kanji string converted by the conversion means; and a search using the difficulty dictionary to determine whether or not the kana-kanji string converted by the conversion means includes a kanji with a high degree of difficulty in reading. a search means to
a variant character converting means for converting the highly difficult to read kanji into a less difficult to read kanji using the variant character dictionary when the search means searches for a kanji with a high degree of difficulty in reading in the kana-kanji character string; and a second display means for replacing and displaying the highly difficult to read kanji included in the kana-kanji character string converted by the conversion means with the less difficult to read kanji converted by the variant character conversion means. Equipped with a characteristic character processing device.

[0009]

[Operation] With the above configuration, the present invention checks whether a character string that has been subjected to kana-kanji conversion contains kanji that are highly difficult to read, and uses a variant dictionary to extract kanji that are difficult to read. , and presents a string containing kanji that is less difficult to read.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of a document processing device that is a typical embodiment of the present invention. In FIG. 1, a CPU 1 is a microprocessor that performs calculations and logical judgments for character processing, and an address bus (AB) 2.
, control bus (CB) 3, data bus (DB) 4
Each component connected to these buses 2 to 4, which will be described later, is controlled via the busses 2 to 4.

The address bus (AB) 2 transfers address signals indicating the components to be controlled by the CPU 1. A control bus (CB) 3 transfers and applies control signals to each component to be controlled by the CPU 1. A data bus (DB) 4 transfers data between each component.

The ROM 5 is a read-only fixed memory, and stores a control program for executing the variant character conversion process as shown in the flowcharts of FIGS. 9 and 10, and a dictionary that is referred to when executing the kana-kanji conversion. The fixed data of the dictionary (KNCNVDIC), information on converting standard kanji to variant kanji such as slang and abbreviations, and information on converting variant kanji such as slang and abbreviations to standard font kanji are provided. Stored variant dictionaries (IT
Fixed data of AIJDIC) and fixed data of Commonly Used Kanji Identification Dictionary (JOGAIDIC) are stored. The variant character dictionary (ITAIJDIC) is, as described later using Figure 6, information on the number of variant character conversions (n), standard kanji code information, and (n-1) variant characters such as slang characters and abbreviations. This is a dictionary that stores kanji code information. Further, the non-commonly used kanji identification dictionary (JOGAIDIC) is a dictionary that stores kanji JIS code information and non-commonly used identification flag information, as will be described later with reference to FIG.

The RAM 6 is a rewritable random access memory having a configuration of 1 word and 16 bits, and is used for temporary storage of various data from each component. TEXT is a text buffer, which stores a document handled by the character processing device of this embodiment in an internal format, as will be described later with reference to FIG. KBBUF is a keyboard buffer for storing input reading sequences and key inputs for operation selection. YOMIBUF is a reading input buffer for storing input readings for kana-kanji conversion. KOUHOBUF
is a candidate output buffer for storing character strings that have become conversion candidates as a result of the kana-kanji conversion process.

KB7 is a keyboard, which has various functions possessed by the character processing device of this embodiment, such as character symbol input keys such as alphabet keys, hiragana keys, and katakana keys, as well as conversion keys, cursor movement keys, and selection keys. Equipped with various function keys for instructions.

DISK8 is a hard disk for storing document data, and is a text buffer (TEXT).
The documents created above are stored, and the stored documents are stored in the RAM when necessary according to instructions from the keyboard (KB) 7.
Called on 6.

CR9 is a cursor register. CPU
1 allows the contents of the cursor register to be read and written. A CRT controller CRTC, which will be described later, displays a cursor at a position on the display device CRT corresponding to the address stored here.

DBUF10 is a display buffer memory,
Stores patterns of data to be displayed. The contents of the document data are displayed by developing a pattern on the DBUF 10 based on the data on the text buffer (TEXT).

CRTC11 is a cursor register (CR)
9 and the contents stored in the buffer DBUF10 on the CRT
This is a CRT controller that plays the role of displaying images on the screen.

The CRT 12 is a display device using a cathode ray tube or the like, and the dot matrix display pattern and cursor display on the CRT 12 are controlled by the CRTC 11. Further, the CG 13 is a character generator that stores patterns of characters and symbols to be displayed on the CRT 13.

The character processing device of this embodiment, which is composed of the above-described components, operates in response to various inputs from the keyboard (KB) 7. First, when input from the keyboard (KB) 7 is supplied, an interrupt signal is sent to the CP.
Sent to U1. In response, the CPU 1 reads various control programs stored in the ROM 5, and various controls are performed according to these control programs.

FIG. 2 is a diagram showing an example of the screen configuration displayed on the CRT 12. In FIG. 2, DSP means the entire display screen, and TS means the text screen. The contents of the document stored in the text buffer (TEXT) are displayed in the TS. In addition, KS is an area for displaying soft keys, and displays necessary keys depending on the operating situation, such as selection keys, conversion keys, etc., and keyboard (KB) 7
Each function works by pressing the key at the corresponding position. WDSP is a window display screen, and is an area where character string candidates created after the kana-kanji conversion process are displayed. YS is an area for displaying reading input for kana-kanji conversion.

[0023] Figures 3 to 5 show that when there is a variant kanji with a high degree of difficulty in reading in a character string whose reading has been converted by referring to the Kana-Kanji Conversion Dictionary (KNCNVDIC), a character string with a low degree of difficulty in reading is converted. FIG. 4 is a diagram chronologically showing changes in the screen displayed on the CRT 12 in a series of processes in which a desired character string is displayed as a conversion candidate and selected.

First, when the document processing device is ready to create a document, when the operator inputs a reading (in this case, "gakugeishinbun") using the hiragana key on the keyboard (KB) 7, the result shown in FIG. 3(a) is The reading is displayed in the area (YS) that displays the reading input for kana-kanji conversion. Here, when you press the conversion key on the keyboard (KB) 7, a window display screen (WD
SP) displays character string candidates that have been converted into kana-kanji. In FIG. 3(b), the window display screen (WDSP
), the character string "Gakugeishinbun" converted with reference to the Kana-Kanji Conversion Dictionary (KNCNVDIC) is first displayed as a conversion candidate. Here, each of the characters "孝" and "藝" is defined as non-commonly used according to non-commonly used identification flag information, which will be described later, stored in the non-commonly used kanji identification dictionary (JOGAIDIC), and (ITAIJDIC
) are recognized as variant kanji such as slang characters and abbreviations, so the standard font for ``學'' and ``藝'' is
The character string ``Gakugei Shimbun'' is displayed as another conversion candidate by performing variant character conversion on ``Gaku'' and ``Gei''.

[0025] Here, the operator uses the cursor movement keys on the keyboard (KB) 7 to move the cursor to "Gakugei Shimbun" and presses the "select" key, as shown in FIG. 3(c). As shown in Figure 4(a), the character string “
``Gakugei Shimbun'' is input in the text buffer (TEXT), and ``Gakugei Shimbun'' is displayed on the text screen (TS).

Similarly, as shown in FIG. 4(b), when the operator inputs a reading using the hiragana keys on the keyboard (KB) 7, the reading is displayed in the reading input display area (YS). When the conversion key is pressed here, character string candidates converted to kana-kanji are displayed on the window display screen (WDSP), as shown in FIG. 5(a). In Figure 5(a), the Kana-Kanji Conversion Dictionary (KNCNVD)
The character string "Shijo" converted with reference to IC) is first displayed as a conversion candidate. Here, the character ``jo'' is stored in the non-common kanji identification dictionary (JOGAIDIC) and the non-common identification flag information (described below) is non-common, and the variant kanji dictionary (ITAIJDIC) contains the character ``jo''. exists as one of the variant kanji such as slang and abbreviations,
This is converted into a standard kanji character ("jo"), and then the character string "shijo" is displayed as one conversion candidate.

Next, the operator uses the cursor movement keys on the keyboard (KB) 7 to move the cursor to "Shijo" as shown in FIG. 5(b), and presses the "select" key. As shown in FIG. 5(c), the character string "Shijo" is input to the text buffer (TEXT), and the character string "Shijo" is displayed on the text screen (TS).

FIG. 6 shows the variant character dictionary (I
FIG. 2 is a diagram showing the internal configuration of TAIJDIC. In FIG. 6, the variant character dictionary (ITAIJDIC) includes information on the number of variant character conversions (n), standard kanji code information, (n-1
) Contains kanji code information for individual slang characters, abbreviations, etc. This variant Kanji dictionary (ITAIJDIC) is referred to in order to convert a Kanji in a standard font into a variant Kanji, and to convert a variant Kanji into a Kanji in a standard font or another variant Kanji. In this embodiment, the information in this variant character dictionary (ITAIJDIC) is the character code (JISX0208 code) of the kanji code information of the standard font.
are stored in ascending order according to

For example, for the kanji code information of the standard font "Gaku", if the number of variant character conversions is 3, then 3-1
(=2) Variant kanji code information such as slang characters and abbreviations,
In other words, code information for "學" and "斈" is stored.

FIG. 7 is a diagram showing the structure of the text buffer (TEXT). Text consists of multiple lines of fixed length data. Each line of data is similarly composed of a plurality of character data. Each character data consists of 1 character and 2 bytes. For example, character code JISX02
08. Further, 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, in the third line from the beginning of the text, 4 from the left
The character numbered is specified by X coordinate=4 and Y coordinate=3. Similarly, the current position of the cursor is also managed using the X and Y coordinates.

FIG. 8 is a diagram showing the internal structure of the commonly used kanji identification dictionary (JOGAIDIC) used in this embodiment. The non-commonly used kanji identification dictionary (JOGAIDIC) is a kanji J
It is composed of IS code information and non-commonly used identification flag information, and is used to determine whether the referenced kanji is a commonly used kanji or a non-commonly used kanji.

[0032] Non-commonly used identification flag information is information added to each kanji code stored in the dictionary, and when the flag is "0", it indicates that the corresponding kanji is "commonly used kanji". A value of "1" indicates that the corresponding kanji is "a kanji not commonly used." For example, the kanji J in the Commonly Used Kanji Identification Dictionary (JOGAIDIC) is ``條 (5B6A)''.
For the IS code information (5B6A), non-commonly used identification flag information “1” (it is a non-commonly used kanji) is stored.

[0033] In addition, in this embodiment, a commonly used kanji identification dictionary (
The kanji code stored in JOGAIDIC) is kanji J.
They are stored in ascending order according to the character code (JISX0208 code) of the IS code information. For example, in FIG. 8, the character "upper (JIS code: 3E65)" is stored before the character "middle (JIS code: 4366)".

Next, the kana-kanji conversion process executed by the document processing apparatus of this embodiment will be explained with reference to the flowcharts shown in FIGS. 9 and 10. In particular, if there are characters with a high degree of difficulty in reading in a character string converted by referring to the Kana-Kanji Conversion Dictionary (KNCNVDIC), the characters with a high degree of difficulty in reading are displayed as conversion candidates by performing variant character conversion. The process to do this will be explained.

First, in step S10, the keyboard (
It is in a state of waiting for an instruction input from KB)7. Here, if any input is accepted, the input data is taken into the keyboard buffer (KBBUF), and the process proceeds to step S15. In step S15, it is checked what kind of instruction the input data at the beginning of the keyboard buffer (KBBUF) is. Here, if the instruction is kana input by pressing the hiragana key, the process goes to step S.
25, if the instruction is a conversion key press, the process proceeds to step S20; if any other key is pressed, the process returns to step S10.

In step S25, the "hiragana reading" stored in the keyboard buffer (KBBUF) is read.
Performs processing to add to the reading input buffer (YOMIBUF). Subsequently, in step S30, as shown in FIG. 3A, the "hiragana reading" stored in the keyboard buffer (KBBUF) is additionally displayed in the area (YS) for displaying the reading input for kana-kanji conversion.

In step S20, which will be described in detail later with reference to the flowchart shown in FIG. 10, kana-kanji conversion candidates are created based on the reading input while referring to the kana-kanji conversion dictionary (KNCNVDIC). At this time, in the conversion candidate character string, there is a
) Checks whether the non-common kanji stored in the file exists. If the corresponding character exists here, refer to the variant character dictionary (ITAIJDIC) and check whether there are kanji in the standard font that corresponds to the non-commonly used kanji and variant kanji such as slang or abbreviated characters. . Here, if it is determined that there are kanji in the corresponding standard font and variant kanji such as slang or abbreviations, the variant kanji dictionary (ITAIJDI)
With reference to C), a conversion candidate character string is created by converting the variant characters in the conversion candidate character string to variant characters, and this is output to the candidate output buffer (KOUHOBUF).

In step S35, the character string group in the candidate output buffer (KOUHOBUF) created in the kana-kanji conversion candidate creation process in step S20 is converted into the character string group in FIG.
) and as shown in Figure 5(a), the window display screen (
WDSP) and allows the operator of the device to select a desired character string from conversion candidates.

Next, in step S40, the keyboard (K
B) The process waits for an input from 7, and waits for an instruction to select a conversion candidate character string. Here, if any input is accepted, the data is taken into the keyboard buffer (KBBUF) and the process proceeds to step S45. In step S45, the type of instruction stored in the keyboard buffer (KBBUF) is checked. Here, if the given instruction is an instruction to move the cursor using the up/down cursor keys, the process proceeds to step S50, and if the given instruction is an instruction to move the cursor by pressing the selection key, the process proceeds to step S55. If the instruction is , the process returns to step S40.

In step S50, the candidate output buffer (KOUHOBU) created in the kana-kanji conversion candidate creation process is
While displaying the character string group F) on the window display screen (WDSP), move the cursor position on the window display screen (WDSP) for selecting a candidate according to the input of the up and down cursor keys. After that, the process returns to step S40.

[0041] In step S55, the character string located at the position of the cursor among the character strings displayed on the window display screen (WDSP) is regarded as the selected candidate character string, and the text buffer (TEXT ). Subsequently, in step S60, the process shown in FIG.
) and as shown in Figure 5(c), the window display screen (
WDSP) and erase the text screen (TS).
Display and edit the selected candidate string.

FIG. 10 is a flowchart showing detailed processing of the kana-kanji conversion candidate creation processing shown in step S20 of FIG.

First, in step S70, a conversion candidate is created for the reading of the reading input buffer (YOMIBUF) by referring to the kana-kanji conversion dictionary (KNCNVDIC).
Output to the candidate output buffer (KOUHOBUF). Next, in step S75, it is checked whether the processing from step S80 onwards has been completed for all conversion candidates created in step S70. Here, if it is determined that the processing from step S80 onwards has been completed for all conversion candidates, the process returns to step S20, and the process returns to step S20.
Processing after 35 is performed. On the other hand, if it is determined that the processing from step S80 onwards has not been completed for all conversion candidates, the processing proceeds to step S80.

[0044] In step S80, for one unprocessed candidate among the conversion candidate character strings created in step S70, the common non-standard kanji identification dictionary (J) is included in the conversion candidate character string.
Check whether the commonly used kanji stored in OGAIDIC exists. Subsequently, in step S81, the processing result of step S80 is judged, and if a non-common kanji is present in the conversion candidate character string, the process proceeds to step S82,
If the non-commonly used kanji does not exist, the process returns to step S75.

[0045] In step S82, the non-commonly used kanji in the conversion candidate character string identified in step S80 are kanji in the standard font stored in the variant character dictionary (ITAIJDIC) and variant kanji such as slang characters and abbreviations. Find out if.

Subsequently, in step S85, step S85
82 is judged. Here, if a standard font kanji or a variant kanji such as a slang character or abbreviation does not exist among the non-common kanji characters in the conversion candidate character string, the process returns to step S75, and if they exist, the process proceeds to step S90.

[0047] In step S90, a dictionary of variant characters (ITA
IJDIC), the variant characters in the conversion candidate character string are converted into variant characters to create a conversion candidate character string, and the character string is output to the candidate output buffer (KOUHOBUF). After that, the process returns to step S75.

Therefore, according to this embodiment, if a conversion candidate character string obtained by performing kana-kanji conversion on an input hiragana reading string contains a non-common kanji, it is converted to a variant character dictionary (ITAIJDIC). A character string that is less difficult to read (easier to read) can be displayed as another conversion candidate by referring to the character string and converting it to a different character.

In this embodiment, characters with a high degree of difficulty in reading (hard to read) existing in a character string of conversion candidates obtained by performing kana-kanji conversion are simply converted into characters with a degree of difficulty in reading (easy to read). Although the case of conversion has been described, the present invention is not limited to this. For example, it is also possible to set a difficulty level to characters that are highly difficult to read (hard to read), and to set the threshold value of the difficulty level from the outside. Thereby, it is possible to realize kana-kanji conversion according to the level of the operator handling the device.

In this case, for example, by adding information to distinguish the kanji to be learned in each grade of elementary school and junior high school to the inside of the commonly used kanji identification dictionary (JOGAIDIC) shown in FIG. This is achieved by making it possible to specify the grade level of the students handling the device from outside the device, and distinguishing between commonly used kanji based on the designation. As another example, it may be configured such that the individual user can set the difficulty level for characters that are difficult to read (difficult to read).

[0051] In this case, for example, this can be realized by providing a kanji difficulty level setting column in which the user can register the commonly used kanji identification dictionary (JOGAIDIC) shown in FIG.

The present invention may be applied to a system made up of a plurality of devices, or to an apparatus made up of one device. It goes without saying that the present invention can also be applied to cases where the present invention is achieved by supplying a program to a system or device.

[0053]

[Effects of the Invention] As explained above, according to the present invention, after converting an input hiragana reading string into a kana-kanji character string,
Checks whether the character string contains kanji that are difficult to read, and if it contains kanji that are difficult to read, automatically converts the kanji to kanji that are less difficult to read (easier to read). Since it can be displayed, there is no need for complicated operations associated with variant character conversion, and there is an effect that erroneous operations and erroneous inputs are prevented.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a document processing device that is a typical embodiment of the present invention.

FIG. 2 is a diagram showing the configuration of a screen displayed on a CRT of a document processing device.

[Figure 3]

[Figure 4]

FIG. 5 is a diagram showing a chronological transition of a display screen according to a series of kana-kanji conversion and variant character conversion processes.

FIG. 6 is a diagram showing the internal structure of a variant character dictionary.

FIG. 7 is a diagram showing the structure of a text buffer.

FIG. 8 is a diagram showing the internal structure of a commonly used non-common kanji identification dictionary.

[Figure 9]

FIG. 10 is a flowchart showing variant character conversion processing.

[Explanation of symbols] 1 CPU 2 Address bus 3 Control bus 4 Data bus 5 ROM (read-only memory) 6 RAM (random access memory) 7 Keyboard (KB) 8 Hard disk (DISK) 9 Cursor register (CR) 10 Data buffer ( DBUF) 11 CRT controller 12 CRT

Claims (2)

[Claims] 1. A kana-kanji dictionary that stores a hiragana reading string and a kana-kanji string corresponding to the hiragana reading string; and a variant dictionary that stores a kana-kanji string and a kana-kanji string of variant characters corresponding to the kana-kanji string. , an input step of inputting a hiragana reading string, and an instruction to convert the hiragana reading string inputted in the input step into kana-kanji in a character processing method using a reading difficulty dictionary storing reading difficulty information of kanji. a conversion step of converting the hiragana pronunciation input in the input step into a kana-kanji character string based on the kana-kanji dictionary based on instructions from the instruction step; a first display step of displaying a character string; a search step of searching using the difficulty level dictionary to determine whether or not the Kana-Kanji character string converted in the conversion step includes a kanji with a high degree of difficulty in reading; a variant character conversion step of converting the highly difficult to read kanji into a less difficult to read kanji using the variant character dictionary when a kanji with a high degree of difficulty is found in the kana-kanji character string in the search step; A second display step of replacing and displaying the highly difficult to read kanji included in the kana kanji character string converted by the step with the kanji having a low degree of readability converted by the variant character conversion step. Character processing method. 2. A kana-kanji dictionary that stores a hiragana reading sequence and a kana-kanji character string corresponding to the hiragana reading sequence; and a variant character dictionary that stores a kana-kanji character string and a kana-kanji character string of a variant character that corresponds to the kana-kanji character string. , an input means for inputting a hiragana reading sequence, and an instruction for instructing to convert the hiragana reading sequence inputted by the input means into kana-kanji in a character processing device having a reading difficulty dictionary storing reading difficulty information of kanji; means, converting means for converting the hiragana pronunciation inputted by the input means into a kana-kanji character string based on the kana-kanji dictionary, based on instructions from the instruction means, and the kana-kanji characters converted by the converting means. a first display means for displaying a character string; a search means for searching, using the difficulty level dictionary, whether or not the Kana-Kanji character string converted by the conversion means includes a kanji with a high degree of difficulty in reading; variant character converting means for converting the highly difficult to read kanji into a less difficult to read kanji using the variant character dictionary when the search means searches for a kanji with a high degree of difficulty in reading in the kana-kanji character string; and a second display means for replacing and displaying the highly difficult-to-read kanji included in the kana-kanji character string converted by the means with the less difficult-to-read kanji converted by the variant character conversion means. Character processing device.