xref: /plan9/sys/src/ape/lib/fmt/fmtprint.c (revision 9b943567965ba040fd275927fbe088656eb8ce4f)
1 /*
2  * The authors of this software are Rob Pike and Ken Thompson.
3  *              Copyright (c) 2002 by Lucent Technologies.
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose without fee is hereby granted, provided that this entire notice
6  * is included in all copies of any software which is or includes a copy
7  * or modification of this software and in all copies of the supporting
8  * documentation for such software.
9  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
10  * WARRANTY.  IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
11  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
12  * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
13  */
14 #include <stdarg.h>
15 #include <string.h>
16 #include "utf.h"
17 #include "fmt.h"
18 #include "fmtdef.h"
19 
20 
21 /*
22  * format a string into the output buffer
23  * designed for formats which themselves call fmt,
24  * but ignore any width flags
25  */
26 int
27 fmtprint(Fmt *f, char *fmt, ...)
28 {
29 	va_list va;
30 	int n;
31 
32 	f->flags = 0;
33 	f->width = 0;
34 	f->prec = 0;
35 	va = f->args;
36 	va_start(f->args, fmt);
37 	n = dofmt(f, fmt);
38 	va_end(f->args);
39 	f->flags = 0;
40 	f->width = 0;
41 	f->prec = 0;
42 	f->args = va;
43 	if(n >= 0)
44 		return 0;
45 	return n;
46 }
47 
48