NAME
UILib intro — User interface library intro
DESCRIPTION
User interface libraries are responding to one-chracter or one-key
input, return various kinds of information. They include the unfixed
character string, fixed character string, marked segment position,
status display character string, and candidate list character string.
The application program displays the data according to the returned
information. It can also control mode transition by triggering through
something other than key pressing (for example, selection through the
mouse).
The user interface library provides jrKanjiString and jrKanjiControl
for the input through the TTY. It also provides XLookupKanjiString and
XKanjiControl for the input through the X window.
Use of the user interface library requires the following:
- Through the TTY:
Function jrKanjiString, jrKanjiControl
Header file canna/jrkanji.h
Library libcanna.a, libcanna.so
- Through the X window:
Function XLookupKanjiString, XKanjiControl
Header file canna/kanji.h
Library libXn.a, libXn.so, libcanna.a, libcanna.so
Outline
jrKanjiString Converts ordinary keyboard input (input through the
TTY, input with X) into Kanji strings.
jrKanjiControl Executes the control with jrKanjiString according
to the specified parameters.
XLookupKanjiString Converts the keyboard input (key event) into Kanji
strings in the X window system.
XKanjiControl Executes the control with XLookupKanjiString
according to the specified parameters.
NAME
jrKanjiString — Kana-to-Kanji Conversion for ordinary keyboard input
SYNOPSIS
#include <canna/jrkanji.h>
int jrKanjiString(context_id, ch, buffer_return, bytes_buffer, kanji_status_return)
int context_id;
int ch;
char *buffer_return;
int bytes_buffer;
jrKanjiStatus *kanji_status_return;
DESCRIPTION
jrKanjiString converts ordinary keyboard input (input through the TTY,
input with X) into Kanji strings.
jrKanjiString is a convenient routine which returns the character
strings to be displayed. To convert the key input represented in ASCII
code, into the Japanese characters, jrKanjiString specifies the input
key code using ch. Romaji-to-Kana or Kana-to-Kanji Conversion is
executed in jrKanjiString.
For a function or cursor key, specify a special code (listed in
‘‘FUNCTION KEYS’’ below) to jrKanjiString. Do not specify the sequence
caused by the key.
For the context identifier specified in context_id, the value is not
used as it is. Instead, a context that uses the context identifier as
the key is created and used. Thus, the application program may specify
any value for the context identifier to be specified for jrKanjiString.
It is recommended that the input port’s file descriptor be specified
for this identifier. If 0 is specified for the identifier, the context
prepared as the system default will be used by way of exception.
It is recommended that 0 be specified unless particular consideration
is given to the context. The intermediate result to be displayed is
returned to the application through kanji_status_return.
Responding to the input, it is necessary to display the intermediate
result of Romaji-to-Kana or Kana-to-Kanji Conversion. The application
must display the intermediate result according to the information
returned by kanji_status_return, which is a jrKanjiStatus type
structure.
The jrKanjiStatus structure is defined as follows:
typedef struct {
unsigned char *echoStr; /* Character string for local echo */
int length; /* Length of the local echo character string */
int revPos; /* Offset to the reverse display field
within local echo character string */
int revLen; /* Length of the reverse display within
local echo echo character string */
unsigned long info; /* Other information */
unsigned char *mode; /* Mode information */
struct {
unsigned char *line; /* Candidate list character string */
int length; /* Length of candidate list character string */
int revPos; /* Offset to the reverse display field
within candidate list character string */
int revLen; /* Length of reverse display field within
candidate list character string */
} gline; /* Information about the candidate list*/
} jrKanjiStatus;
When Kana-to-Kanji conversion is used during Japanese input,
information such as the readings to be converted need to be echoed
(local echo). jrKanjiString does not perform display such as local
echo. Instead, it returns the character strings to be submitted to
local echo, to the application by using the jrKanjiStatus structure.
The EUC character strings to be submitted to local echo include
characters already converted into Kana from Romaji and conversion
candidate characters. Until the conversion is fixed, they are returned
by the echoStr member. At this time, the length of local echo
character string is returned by the length member. Also, the starting
position and length (bytes) of reverse display area are returned by the
revPos and revLen member, respectively. The buffer for local echo
character strings is reserved automatically by jrKanjiString. It must
be used only for reading. No character string must be written into
this buffer.
If no character string is to be submitted to local echo, 0 will be
returned by the length member.
The contents to be submitted to local echo may be the same as when
jrKanjiString was previously called. (This occurs, for example, when a
control code is pressed and the key is disabled.) In this case, -1
returns to the length member.
Mode changes and existence of information about the candidate list are
passed by the info member. If info member’s KanjiModeInfo bit is on,
the character string indicating the new mode will return to mode. If
the info member’s KanjiGLineInfo bit is on, the gline structure has
contained information such as the candidate list.
The character string for candidate list display returns to the gline
structure’s line member. The length, reverse dispaly starting
position, and reverse display duration of the candidate list character
string return to the gline structure’s line, revPos, and revLen,
respectively.
If there is an EUC character string fixed during conversion, it will be
stored into buffer buffer_return. In this case, the length (bytes) of
this character string will return. If there is no fixed character
string, the return value will be 0. Using bytes_buffer, specify the
size of the buffer that is to contain the fixed character string
(buffer_return). If the fixed character string is longer than
bytes_buffer, only the bytes_buffer substring is stored into
buffer_return. In this case, the value specified in bytes_buffer will
be the return value of jrKanjiString.
FUNCTION KEYS
For any function key that issue an Escape sequence, specify one of the
following codes as ch instead of the Escape sequence:
Logical name
Code
Nfer CANNA_KEY_Nfer
Xfer CANNA_KEY_Xfer
Up CANNA_KEY_Up
Left CANNA_KEY_Left
Right CANNA_KEY_Right
Down CANNA_KEY_Down
Insert CANNA_KEY_Insert
Rollup CANNA_KEY_Rollup
Rolldown CANNA_KEY_Rolldown
Home CANNA_KEY_Home
Help CANNA_KEY_Help
S-Nfer CANNA_KEY_Shift_Nfer
S-Xfer CANNA_KEY_Shift_Xfer
S-Up CANNA_KEY_Shift_Up
S-Left CANNA_KEY_Shift_Left
S-Right CANNA_KEY_Shift_Right
S-Down CANNA_KEY_Shift_Down
C-Nfer CANNA_KEY_Control_Nfer
C-Xfer CANNA_KEY_Control_Xfer
C-Up CANNA_KEY_Control_Up
C-Left CANNA_KEY_Control_Left
C-Right CANNA_KEY_Control_Right
C-Down CANNA_KEY_Control_Down
F1 CANNA_KEY_F1
PF1 CANNA_KEY_PF1
SEE ALSO
jrKanjiControl(3)
RETURN VALUE
If an error occurs during input processing, -1 will return as the
return value of this function. In this case, the error message will be
stored in external variable (char*)jrKanjiError.
If a call to this function causes a character string to be fixed, the
length (bytes) of this character string will return. Otherwise, 0 will
return.
NAME
jrKanjiControl — Control the jrKanjiControl modes and processes
SYNOPSIS
#include <canna/jrkanji.h>
int jrKanjiControl(context_id, request, arg)
int context_id;
int request;
char *arg;
DESCRIPTION
jrKanjiControl executes process request for conversion context
context_id. Some processes are accompanied by the argument, specified
in arg.
jrKanjiControl controls the following 13 functions:
request name Function
KC_INITIALIZE Initializes Kana-to-Kanji conversion.
KC_CHANGEMODE Changes the input mode.
KC_SETWIDTH Specifies the width used to display the candidate
KC_FINALIZE Finalizes (terminates) Kana-to-Kanji conversion
processing.
KC_SETUNDEFKEYFUNCTION
Sets a function for an undefined key.
KC_SETMODEINFOSTYLE
Specifies whether mode information is represented in
numeric form.
KC_KAKUTEI Fixes the currently entered character string.
KC_KILL Deletes the currently entered character string.
KC_QUERYMODE Queries about the current mode.
KC_SETSERVERNAME Specifies the server to be connected.
KC_SETINITFILENAME
Specifies the customize file.
KC_CLOSEUICONTEXT Closes the context.
KC_QUERYMAXMODESTR
Obtains the maximum length of mode display character
string.
Basically, jrKanjiControl is enabled only for something specified in
the context. This rule does not apply to the initialize and terminate
processes.
The unfixed character string condition may change, or details of the
mode may vary, depending on the jrKanjiControl operation. If this may
occur, pass the pointer to a structure that can contain the varied
information in the arg field. This structure is defined as follows:
typedef struct {
int val; /* The length of the character string in the
buffer returns. */
unsigned char *buffer; /* Specifies the buffer used to store the
fixed character string. */
int bytes_buffer; /* Specifies the size of the above buffer. */
jrKanjiStatus *ks; /* Pointer to the structure that contains
information about the unfixed character string. */
} jrKanjiStatusWithValue;
The jrKanjiControl functions can be executed in the following ways:
(1) KC_INITIALIZE — Initializes Kana-to-Kanji conversion.
KC_INITIALIZE initializes Kana-to-Kanji conversion by specifying
KC_INITIALIZE in the request field. Specify one of the following
in arg: (1) the pointer to the char ** type variable used to
store the warning message and (2) NULL.
The initialize process is basically executed automatically when
jrKanjiString(3) is first called. This is skipped by using
jrKanjiControl for initialization.
For example, when control about Kana-to-Kanji conversion is
executed using jrKanjiControl before use of jrKanjiString(3),
Kana-to-Kanji conversion must be initialized.
When the process terminates normally, 0 returns as the
jrKanjiControl return value. When it terminates abnormally, -1
returns.
When KC_INITIALIZE is executed, a warning, rather than an error,
may occur. When it occurs, the pointer to the warning character
string array is stored in and returns to the variable specified
in arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = jrKanjiControl(0, KC_INITIALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning
to the third argument. This message is freed when KC_INITIALIZE
or KC_FINALIZE is executed next. The application programmer must
not free it. The maximum number of warning messages is
restricted to 64 now. The subsequent ones are discarded.
The following warnings may be included in a message:
- All customize files including those of the system are
unavailable.
- The customize file contains a syntax error.
- The Romaji-to-Kana conversion dictionary is unavailable.
- The Kana-to-Kanji conversion dictionary is unavailable.
- Connection to the Kana-to-Kanji conversion server is disabled.
If NULL is specified as the third argument, any warning message
will be discarded.
(2) KC_CHANGEMODE — Changes the input mode.
KC_CHANGEMODE changes the input mode from the application.
Specify KC_CHANGEMODE in the request field. Specify the
jrKanjiStatusWithValue structure in arg.
The Japanese mode is changed by specifying the mode number with
the val member of jrKanjiStatusWithValue structure. The mode
number is indicated by the following macros:
Macro number Mode
CANNA_MODE_AlphaMode Alphabet mode
CANNA_MODE_HenkanMode Conversion input mode
CANNA_MODE_KigoMode Symbol input mode
CANNA_MODE_ZenHiraKakuteiMode
Full-wide Hiragana fixed input mode
CANNA_MODE_ZenKataKakuteiMode
Full-wide Katakana fixed mode
CANNA_MODE_HanKataKakuteiMode
Half-wide Katakana fixed input mode
CANNA_MODE_ZenAlphaKakuteiMode
Full-wide alphabet fixed input mode
CANNA_MODE_HanAlphaKakuteiMode
Half-wide alphabet fixed input mode
CANNA_MODE_HexMode Hexadecimal code input mode
CANNA_MODE_BushuMode Bushu input mode
CANNA_MODE_TorokuMode Word register mode
This function causes much dispaly (mode name etc.) to vary in
response to a mode change. The display change is returned by the
jrKanjiStatusWithValue structure specified as arg.
(Example)
jrKanjiStatus ks;
jrKanjiStatusWithValue ksv;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
ksv.val = CANNA_MODE_HexMode;
jrKanjiControl(context, KC_CHANGEMODE, &ksv);
len = ksv.val;
.....
/* Information about the unfixed or fixed character string is returned
by ksv. */
(3) KC_SETWIDTH — Specifies the width used to display the candidate
list.
KC_SETWIDTH specifies the number of columns of the area on which
the candidate list is to be displayed. The width of one column
equals that of an alphabetical or half-wide Katakana character.
Each full-wide Kanji character occupies two columns. Using
KC_SETWIDTH, specify the width of candidate list display area to
be specified in the request field. At this time, specify the
number of columns in arg.
(Example)
jrKanjiControl(0, KC_SETWIDTH, (char *)60);
(4) KC_FINALIZE — Finalizes (terminates) processing of Kana-to-Kanji
conversion
KC_FINALIZE specifies that Kana-to-Kanji conversion also
finalizes (terminates) at the end of the program and in other
cases.
Be sure to execute this process when terminating Kana-to-Kanji
conversion processing. All contents learned up to now are
registered in the file. Specify KC_FINALIZE in the request
field.
When the process terminates normally, 0 returns. When it
terminates abnormally, -1 returns.
When KC_FINALIZE is executed, a warning, rather than an error,
may occur. When it occurs, the pointer to the warning character
string array is stored in and returns to the variable specified
in arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = jrKanjiControl(0, KC_FINALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning
to the third argument. This message is freed when KC_INITIALIZE
or KC_FINALIZE is executed next. The application programmer must
not free it.
The maximum number of warning messages is restricted to 64 now.
The subsequent ones are discarded.
The following warning may be included in a message:
- The dictionary cannot be unmounted.
If NULL is specified as the third argument, any warning message
will be discarded.
(5) KC_SETUNDEFKEYFUNCTION — Sets a function for an undefined key.
For example, if you press CTRL-t during input of a reading, it is
regarded as undefined key input. The following processes are
executed, responding to undefined key input:
Macro name Process
kc_normal Beep
kc_through Passes the input to the application
kc_kakutei Fixes the input and passes it to the application
program.
kc_kill Deletes the input and passes it to the application
program.
If kc_normal is specified, the function set in external variable
jrBeepFunc is called automatically by the library when an
undefined key is input. If the value is not set in jrBeepFunc,
nothing occurs when ‘‘jrBeepFunc == NULL’’ appears.
(Example)
extern (*jrBeepFunc)(), beep();
jrBeepFunc = beep;
jrKanjiControl(0, KC_SETUNDEFKEYFUNCTION, kc_normal);
(6) KC_SETMODEINFOSTYLE — Specifies mode information representation.
You may want to display mode information with data such as the
bit map, rather than character strings. In this case, return of
numeric data as mode information helps you execute the process.
Specify KC_SETMODEINFOSTYLE in jrKanjiControl, and pass 1 to arg.
After this, one character representing the mode code (numeric)
plus To convert the value into the mode code, subtract ’@’ (0x40)
from the returned character string. For the mode codes, see the
mode change description of Item (2) KC_CHANGEMODE.
(7) KC_KAKUTEI, (8) KC_KILL — Kill the currently input character
string.
You may want to relinquish the currently entered character string
for some reason. There are two relinquishing methods. One is to
relinquish the character string after including the currently
entered character string as a fixed one. The other is to discard
the character string completely then relinquish it. For the
first method, specify KC_KAKUTEI in jrKanjiControl. For the
second method, specify KC_KILL.
Each of the above influences the display. The
jrKanjiStatusWithValue must thus be specified as the third
argument.
(Example)
jrKanjiStatusWithValue ksv;
jrKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
jrKanjiControl(context, KC_KAKUTEI, &ksv);
len = ksv.val;
.....
(9) KC_QUERYMODE — Inquiry about the mode
To inquire about the current mode, specify KC_QUERYMODE in
jrKanjiControl.
Specify the pointer to the character array in which the mode
character string is to be stored. The mode character string is a
character string ending with a null character. To return a
numeric here, specify KC_SETMODEINFOSTYLE in jrKanjiControl to
change the mode character string style.
(Example)
char currentMode[MAXMODELEN];
.....
jrKanjiControl(0, KC_QUERYMODE, currentMode);
.....
(10) KC_SETSERVERNAME Specifies the server to be connected.
KC_SETSERVERNAME enables you to switch the Kana-to-Kanji
conversion server without terminating the application program.
To set the server to connect as the Kana-to-Kanji conversion
server, specify KC_SETSERVERNAME in jrKanjiControl. In the third
argument, specify the name of the server to be connected.
(11) KC_SETINITFILENAME — Specifies the customize file.
KC_SETINITFILENAM enables the application program to change the
customize file. To change the customize file, specify
KC_SETINITFILENAME as the second argument and the file name
character string as the third argument. This process must be
executed before KC_INTIALIZE.
(Example)
char *inifile = "app-own.canna"
.....
jrKanjiControl(0, KC_SETINITFILENAME, initfile);
.....
(12) KC_CLOSEUICONTEXT Closes the context.
Any integer may be assigned as the context ID that represents the
conversion context. A context ID that has never been used can be
assigned to jrKanjiString or jrKanjiControl. In this case,
initialization for this context is executed to reserve the
required memory.
If an input port used up to now is not used, you may want to free
the memory reserved for the context ID assigned to this port. To
do so, call jrKanjiControl by specifying KC_CLOSEUICONTEXT as the
second argument.
Because this process causes a display change, specify
jrKanjiStatusWithValue as the third structure.
(Example)
jrKanjiStatusWithValue ksv;
jrKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
jrKanjiControl(0, KC_CLOSEUICONTEXT, &ksv);
.....
(13) KC_QUERYMAXMODESTR — Obtains the maximum length of mode display
character string.
The mode display character string can be customized using the
initialize file. It is necessary to examine the size of the
display area (in the customized resulting mode display character
string) that is to be reserved. Specify KC_QUERYMAXMODESTR as
the second argument, then call jrKanjiControl. As a result, the
number of columns necessary for the mode display character string
is returned. The number of columns is represented, defining that
the width of one half-wide alphanumeric character is 1.
The third argument is unused; dummy value 0 is assigned to it.
(Example)
int max_mode_columns;
.....
max_mode_columns = jrKanjiControl(0, KC_QUERYMAXMODESTR, 0);
.....
NAME
XLookupKanjiString — Converts the keyboard input into Kanji
SYNOPSIS
#include <X11/Xlib.h>
#include <X11/kanji.h>
int
XLookupKanjiString(event_struct, buffer_return, bytes_buffer,
keysym_return, status_return, kanji_status_return)
XKeyEvent *event_struct;
char *buffer_return;
int bytes_buffer;
KeySym *keysym_return;
XComposeStatus *status_return;
XKanjiStatus *kanji_status_return;
ARGUMENTS
event_struct Specifies the key event.
buffer_return Returns the resulting Kanji string.
bytes_buffer Specifies the buffer length.
keysym_return Returns the key symbol. NULL may be specified
status_return Specifies the pointer to the XCompose structure.
kanji_status_return
Returns the Kana-to-Kanji conversion status.
DESCRIPTION
XLookupKanjiString is a convenient routine that associates a key event
with a Japanese character string. It uses the modifier key bit to
processes such as shift, lock, and control.
XLookupKanjiString enables eight- and 16-bit Japanese characters to be
processed.
XLookupKanjiString processes alphabetical characters in the same way as
XLookupString.
For Japanese character processing, Romaji-to-Kana conversion and Kana-
to-Kanji conversion are done in this function. The XKanjiStatus,
defined below, is used during Japanese data input:
typedef struct _XKanjiStatus {
unsigned char *echoStr; /* local echo string */
int length; /* length of echo string */
int revPos; /* reverse position */
int revLen; /* reverse length */
unsigned long info; /* other informations */
unsigned char *mode; /* mode information */
struct {
unsigned char *line; /* a grance of Kanji characters */
int length; /* length of it */
int revPos; /* reverse position of it */
int revLen; /* reverse length of it */
} gline; /* a grancing line information */
} XKanjiStatus;
#define KanjiModeInfo 01
#define KanjiGLineInfo 02
When Kana-to-Kanji conversion is used during Japanese input,
information such as the readings to be converted need to be echoed
(local echo). XLookupKanjiString does not perform display such as
local echo. Instead, it returns the character strings to be submitted
to local echo, to the application by using the XKanjiStatus structure.
The EUC character strings to be submitted to local echo include
characters already converted into Kana from Romaji and conversion
candidate characters. Until the conversion is fixed, they are returned
by the echoStr member. At this time, the length of local echo
character string is returned by the length member. Also, the starting
position and length (bytes) of reverse display are returned by the
revPos and revLen member, respectively. The buffer for local echo
character strings is reserved automatically by XLookupKanjiString. It
should be used only for reading. No character string must be written
into this buffer.
If no character string is to be submitted to local echo, 0 will return
to the length member.
The contents to be submitted to local echo may be the same as when
XLookupKanjiString was previously called. (This occurs, for example,
when the Shift key is pressed.) In this case, -1 returns to the length
member.
Mode changes and existence of information about the candidate list are
passed by the info member. If info member’s KanjiModeInfo bit is on,
the character string indicating the new mode will return to mode. If
the info member’s KanjiGLineInfo bit is on, the gline structure has
contained information such as the candidate list.
The character string for candidate list display returns to the gline
structure’s line member. The length, reverse dispaly starting
position, and reverse display duration of the candidate list character
string return to the gline structure’s line, revPos, and revLen,
respectively.
If there is an EUC character string fixed during conversion, it will be
stored in buffer_return. In this case, the length (bytes) of this
character string will return as the return value of this function. If
there is no fixed character string, the return value will be 0.
NAME
XKanjiControl — Control the XLookupKanjiString mode and process.
SYNOPSIS
#include <X11/kanji.h>
int XKanjiControl(dpy, win, request, arg)
Display dpy;
Window win;
int request;
char *arg;
DESCRIPTION
XKanjiControl executes a process that relates to Japanese input within
the window defined by dpy and win. The process is specified in
request. Some processes are accompanied by the argument, specified in
arg.
XKanjiControl controls the following functions:
request name Function
KC_INITIALIZE Initializes Kana-to-Kanji conversion.
KC_CHANGEMODE Changes the input mode.
KC_SETWIDTH Specifies the width used to display the candidate
KC_FINALIZE Finalizes (terminates) Kana-to-Kanji conversion
processing.
KC_SETUNDEFKEYFUNCTION
Sets a function for an undefined key.
KC_SETMODEINFOSTYLE
Specifies whether mode information is represented in
numeric form.
KC_KAKUTEI Fixes the currently entered character string.
KC_KILL Deletes the currently entered character string.
KC_QUERYMODE Queries about the current mode.
KC_SETSERVERNAME Specifies the server to be connected.
KC_SETINITFILENAME
Specifies the customize file.
KC_CLOSEUICONTEXT Closes the context.
KC_QUERYMAXMODESTR
Obtains the maximum length of mode display character
string.
Basically, XKanjiControl is enabled only for the window specified in
the dpy and win. This rule does not apply to the initialize and
terminate processes.
The unfixed character string condition may change, or details of the
mode may vary, depending on the XKanjiControl operation. If this may
occur, pass the pointer to a structure that can contain the varied
information in the arg field. This structure is defined as follows:
typedef struct {
int val; /* The length of the character string in the
buffer returns. */
unsigned char *buffer; /* Specifies the buffer used to store the
fixed character string. */
int bytes_buffer; /* Specifies the size of the above buffer. */
XKanjiStatus *ks; /* Pointer to the structure that contains
information about the unfixed character string. */
} XKanjiStatusWithValue;
The XKanjiControl functions can be executed in the following ways:
(1) KC_INITIALIZE — Initializes Kana-to-Kanji conversion.
KC_INITIALIZE initializes Kana-to-Kanji conversion by specifying
KC_INITIALIZE in the request field. Specify one of the following
in arg: (1) the pointer to the char ** type variable used to
store the warning message and (2) NULL. The initialize process
is basically executed automatically when XLookupKanjiString(3) is
first called. This is skipped by using XKanjiControl for
initialization.
For example, when control about Kana-to-Kanji conversion is
executed using XKanjiControl before use of XLookupKanjiString(3),
Kana-to-Kanji conversion must be initialized.
When the process terminates normally, 0 returns as the
XKanjiControl return value. When it terminates abnormally, -1
returns.
When KC_INITIALIZE is executed, a warning, rather than an error,
may occur. When it occurs, the pointer to the warning character
string array is stored in and returns to the variable specified
in arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = XKanjiControl(dpy, win, KC_INITIALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning
to the fourth argument. This message is freed when KC_INITIALIZE
or KC_FINALIZE is executed next. The application programmer must
not free it. The maximum number of warning messages is
restricted to 64 now. The subsequent ones are discarded.
The following warnings may be included in a message:
- All customize files including those of the system are
unavailable.
- The customize file contains a syntax error.
- The Romaji-to-Kana conversion dictionary is unavailable.
- The Kana-to-Kanji conversion dictionary is unavailable.
- Connection to the Kana-to-Kanji conversion server is disabled.
If NULL is specified as the fourth argument, any warning message
will be discarded.
(2) KC_CHANGEMODE — Changes the input mode.
KC_CHANGEMODE changes the input mode from the application.
Specify KC_CHANGEMODE in the request field. Specify the
XKanjiStatusWithValue structure in arg. The Japanese mode is
changed by specifying the mode number with the val member of
XKanjiStatusWithValue structure. The mode number is indicated by
the following macros:
Macro number Mode
CANNA_MODE_AlphaMode Alphabet mode
CANNA_MODE_HenkanMode Conversion input mode
CANNA_MODE_KigoMode Symbol input mode
CANNA_MODE_ZenHiraKakuteiMode
Full-wide Hiragana fixed input mode
CANNA_MODE_ZenKataKakuteiMode
Full-wide Katakana fixed mode
CANNA_MODE_HanKataKakuteiMode
Half-wide Katakana fixed input mode
CANNA_MODE_ZenAlphaKakuteiMode
Full-wide alphabet fixed input mode
CANNA_MODE_HanAlphaKakuteiMode
Half-wide alphabet fixed input mode
CANNA_MODE_HexMode Hexadecimal code input mode
CANNA_MODE_BushuMode Bushu input mode
CANNA_MODE_TorokuMode Word register mode
This function causes much dispaly (mode name etc.) to vary in
response to a mode change. The display change is returned by the
XKanjiStatusWithValue structure specified as arg.
(Example)
XKanjiStatus ks;
XKanjiStatusWithValue ksv;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
ksv.val = CANNA_MODE_HexMode;
XKanjiControl(dpy, win, KC_CHANGEMODE, &ksv);
len = ksv.val;
.....
/* Information about the unfixed or fixed character string is
returned by ksv. */
(3) KC_SETWIDTH — Specifies the width used to display the candidate
list.
KC_SETWIDTH specifies the number of columns of the area on which
the candidate list is to be displayed. The width of one column
equals that of an alphabetical or half-wide Katakana character.
Each full-wide Kanji character occupies two columns. Using
KC_SETWIDTH, specify the width of candidate list display area to
be specified in the request field. At this time, specify the
number of columns in arg.
(Example)
XKanjiControl(dpy, win, KC_SETWIDTH, (char *)60);
(4) KC_FINALIZE — Finalizes (terminates) processing of Kana-to-Kanji
conversion
KC_FINALIZE specifies that Kana-to-Kanji conversion also
finalizes (terminates) at the end of the program and in other
cases. Be sure to execute this process when terminating Kana-to-
Kanji conversion processing. All contents learned up to now are
registered in the file. Specify KC_FINALIZE in the request
field.
When the process terminates normally, 0 returns. When it
terminates abnormally, -1 returns.
When KC_INITIALIZE is executed, a warning, rather than an error,
may occur. When it occurs, the pointer to the warning character
string array is stored in and returns to the variable specified
in arg. If no warning occurs, NULL is stored and returns.
(Example)
int res; /* Prepare for error return */
char **warning;
.....
res = XKanjiControl(dpy, win, KC_FINALIZE, &warning);
if (warning) {
char **p;
for (p = warning ; *p ; p++) {
fprintf(stderr, "%s0, *p);
}
}
In the library, malloc is done for the warning message returning
to the fourth argument. This message is freed when KC_INITIALIZE
or KC_FINALIZE is executed next. The application programmer must
not free it.
The maximum number of warning messages is restricted to 64 now.
The subsequent ones are discarded.
The following warning may be included in a message:
- The dictionary cannot be unmounted.
If NULL is specified as the fourth argument, any warning message
will be discarded.
(5) KC_SETUNDEFKEYFUNCTION — Sets a function for an undefined key.
For example, if you press CTRL-t during input of a reading, it is
regarded as undefined key input. The following processes are
executed, responding to undefined key input:
Macro name Process
kc_normal Beep
kc_through Passes the input to the application program.
kc_kakutei Fixes the input and passes it to the application
program.
kc_kill Deletes the input and passes it to the application
program.
If kc_normal is specified, the function set in external variable
jrBeepFunc is called automatically by the library when an
undefined key is input. If the value is not set in jrBeepFunc,
nothing occurs when "jrBeepFunc == NULL" appears.
(Example)
extern (*jrBeepFunc)(), beep();
jrBeepFunc = beep;
XKanjiControl(dpy, win, KC_SETUNDEFKEYFUNCTION, kc_normal);
(6) KC_SETMODEINFOSTYLE — Specifies mode information representation.
You may want to display mode information with data such as the
bit map, rather than character strings. In this case, return of
numeric data as mode information helps you execute the process.
Specify KC_SETMODEINFOSTYLE in XKanjiControl, and pass 1 to arg.
After this, one character representing the mode code (numeric)
plus To convert the value into the mode code, subtract ’@’ (0x40)
from the returned character string. For the mode codes, see the
mode change description of Item (2) KC_CHANGEMODE.
(7) KC_KAKUTEI, (8) KC_KILL — Kill the currently input character
string.
You may want to relinquish the currently entered character string
for some reason. There are two relinquishing methods. One is to
relinquish the character string after including the currently
entered character string as a fixed one. The other is to discard
the character string completely then relinquish it. For the
first method, specify KC_KAKUTEI in jrKanjiControl. For the
second method, specify KC_KILL.
Each of the above influences the display. The
XKanjiStatusWithValue must thus be specified as the fourth
argument.
(Example)
XKanjiStatusWithValue ksv;
XKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
XKanjiControl(dpy, win, KC_KAKUTEI, &ksv);
len = ksv.val;
.....
(9) KC_QUERYMODE — Inquiry about the mode
To inquire about the current mode, specify KC_QUERYMODE in
XKanjiControl.
Specify the pointer to the character array in which the mode
character string is to be stored. The mode character string is a
character string ending with a null character. To return a
numeric here, specify KC_SETMODEINFOSTYLE in XKanjiControl to
change the mode character string style.
(Example)
char currentMode[MAXMODELEN];
.....
XKanjiControl(dpy, win, KC_QUERYMODE, currentMode);
.....
(10) KC_SETSERVERNAME — Specifies the server to be connected.
KC_SETSERVERNAME enables you to switch the Kana-to-Kanji
conversion server without terminating the application program.
To set the server to connect as the Kana-to-Kanji conversion
server, specify KC_SETSERVERNAME in XKanjiControl. In the fourth
argument, specify the name of the server to be connected.
(11) KC_SETINITFILENAME — Specifies the customize file.
KC_SETINITFILENAM enables the application program to change the
customize file. To change the customize file, specify
KC_SETINITFILENAME as the third argument and the file name
character string as the fourth argument. This process must be
executed before KC_INTIALIZE.
(Example)
char *inifile = "app-own.canna"
.....
XKanjiControl(dpy, win, KC_SETINITFILENAME, initfile);
.....
(12) KC_CLOSEUICONTEXT Closes the context.
When XKanjiControl or XLookupKanjiString is called, one
conversion context is assigned to combination of dpy and win.
Combination of dpy and win not used yet can be specified for
XKanjiControl or XLookupKanjiString. When this is done, a new
context is created for the window and the required memory is
reserved.
If a window used up to now is not used, you may want to free the
context memory that has been assigned to this window. To do so,
call XKanjiControl by specifying KC_CLOSEUICONTEXT as the third
argument.
Because this process causes a display change, specify
XKanjiStatusWithValue as the fourth structure.
(Example)
XKanjiStatusWithValue ksv;
XKanjiStatus ks;
unsigned char buf[SOMESIZE];
.....
ksv.ks = &ks;
ksv.buffer = buf;
ksv.bytes_buffer = SOMESIZE;
XKanjiControl(dpy, win, KC_CLOSEUICONTEXT, &ksv);
.....
(13) KC_QUERYMAXMODESTR — Obtains the maximum length of mode display
character string.
The mode display character string can be customized using the
initialize file. It is necessary to examine the size of the
display area (in the customized resulting mode display character
string) that is to be reserved. Specify KC_QUERYMAXMODESTR as
the third argument, then call XKanjiControl. As a result, the
number of columns necessary for the mode display character string
is returned. (The number of columns is represented, defining
that the width of one half-wide alphanumeric character is 1.
The fourth argument is unused; dummy value 0 is assigned to it.
(Example)
int max_mode_columns;
.....
max_mode_columns = XKanjiControl(dpy, win, KC_QUERYMAXMODESTR, 0);
.....
XKANJICONTROL(3)