mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-27 03:20:22 +08:00
98 lines
2.6 KiB
Groff
98 lines
2.6 KiB
Groff
.\"
|
|
.\" $Id: ucpgba.man,v 1.1 1999/11/19 16:08:34 mleisher Exp $
|
|
.\"
|
|
.TH ucpgba 3 "19 November 1999"
|
|
.SH NAME
|
|
ucpgba \- functions for doing bidirectional reordering of Unicode text and
|
|
logical and visual cursor motion
|
|
|
|
.SH SYNOPSIS
|
|
.nf
|
|
#include <ucdata.h>
|
|
#include <ucpgba.h>
|
|
|
|
ucstring_t *ucstring_create(unsigned long *source, unsigned long start,
|
|
unsigned long end, int default_direction,
|
|
int cursor_motion)
|
|
.sp
|
|
void ucstring_free(ucstring_t *string)
|
|
.sp
|
|
int ucstring_set_cursor_motion(ucstring_t *string, int cursor_motion)
|
|
.sp
|
|
int ucstring_cursor_right(ucstring_t *string, int count)
|
|
.sp
|
|
int ucstring_cursor_left(ucstring_t *string, int count)
|
|
.sp
|
|
void ucstring_cursor_info(ucstring_t *string, int *direction,
|
|
unsigned long *position)
|
|
|
|
.SH DESCRIPTION
|
|
.TP 4
|
|
.BR Macros
|
|
UCPGBA_LTR
|
|
.br
|
|
UCPGBA_RTL
|
|
.br
|
|
UCPGBA_CURSOR_VISUAL
|
|
.br
|
|
UCPGBA_CURSOR_LOGICAL
|
|
|
|
.TP 4
|
|
.BR ucstring_create()
|
|
This function will create a reordered string by using the implicit
|
|
directionality of the characters in the specified substring.
|
|
.sp
|
|
The `default_direction' parameter should be one of UCPGBA_LTR or UCPGBA_RTL
|
|
and is used only in cases where a string contains no characters with strong
|
|
directionality.
|
|
.sp
|
|
The `cursor_motion' parameter should be one of UCPGBA_CURSOR_VISUAL or
|
|
UCPGBA_CURSOR_LOGICAL, and is used to specify the initial cursor motion
|
|
behavior. This behavior can be switched at any time using
|
|
ustring_set_cursor_motion().
|
|
|
|
.TP 4
|
|
.BR ucstring_free()
|
|
This function will deallocate the memory used by the string, incuding the
|
|
string itself.
|
|
|
|
.TP 4
|
|
.BR ucstring_cursor_info()
|
|
This function will return the text position of the internal cursor and the
|
|
directionality of the text at that position. The position returned is the
|
|
original text position of the character.
|
|
|
|
.TP 4
|
|
.BR ucstring_set_cursor_motion()
|
|
This function will change the cursor motion type and return the previous
|
|
cursor motion type.
|
|
|
|
.TP 4
|
|
.BR ucstring_cursor_right()
|
|
This function will move the internal cursor to the right according to the
|
|
type of cursor motion set for the string.
|
|
.sp
|
|
If no cursor motion is performed, it returns 0. Otherwise it will return a 1.
|
|
|
|
.TP 4
|
|
.BR ucstring_cursor_left()
|
|
This function will move the internal cursor to the left according to the
|
|
type of cursor motion set for the string.
|
|
.sp
|
|
If no cursor motion is performed, it returns 0. Otherwise it will return a 1.
|
|
|
|
.SH "SEE ALSO"
|
|
ucdata(3)
|
|
|
|
.SH ACKNOWLEDGMENTS
|
|
These are people who have helped with patches or alerted me about problems.
|
|
|
|
.SH AUTHOR
|
|
Mark Leisher
|
|
.br
|
|
Computing Research Lab
|
|
.br
|
|
New Mexico State University
|
|
.br
|
|
Email: mleisher@crl.nmsu.edu
|