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Add some comments explaining what each of these functions is used for.

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[originally from svn r2280]
This commit is contained in:
Ben Harris 2002-12-04 19:44:57 +00:00
parent 269557cb64
commit a0a3d6fad8
1 changed files with 16 additions and 1 deletions
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17
mac/macucs.c
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@ -1,4 +1,4 @@
/* $Id: macucs.c,v 1.1 2002/11/19 02:13:46 ben Exp $ */ /* $Id: macucs.c,v 1.2 2002/12/04 19:44:57 ben Exp $ */
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -21,11 +21,22 @@
* nice, too. * nice, too.
*/ */
/*
* Determine whether a byte is the first byte of a double-byte
* character in a system character set. Only MI use is by clipme()
* when copying direct-to-font text to the clipboard.
*/
int is_dbcs_leadbyte(int codepage, char byte) int is_dbcs_leadbyte(int codepage, char byte)
{ {
return 0; /* we don't do DBCS */ return 0; /* we don't do DBCS */
} }
/*
* Convert from Unicode to a system character set. MI uses are:
* (1) by lpage_send(), whose only MI use is to convert the answerback
* string to Unicode, and
* (2) by clipme() when copying direct-to-font text to the clipboard.
*/
int mb_to_wc(int codepage, int flags, char *mbstr, int mblen, int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
wchar_t *wcstr, int wclen) wchar_t *wcstr, int wclen)
{ {
@ -37,6 +48,10 @@ int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
return ret; /* FIXME: check error codes! */ return ret; /* FIXME: check error codes! */
} }
/*
* Convert from a system character set to Unicode. Used by luni_send
* to convert Unicode into the line character set.
*/
int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen, int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
char *mbstr, int mblen, char *defchr, int *defused) char *mbstr, int mblen, char *defchr, int *defused)
{ {