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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
commit7731832751ab9f3c6ddeb66f186d3d7fa1934a6d (patch)
treee91015872543a59be2aad26c2fea02e41b57005d /libraries/liblunicode/ucdata/ucpgba.man
parentInitial commit. (diff)
downloadopenldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.tar.xz
openldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.zip
Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+.\"
+.\" $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