| /* |
| * The authors of this software are Rob Pike and Ken Thompson, |
| * with contributions from Mike Burrows and Sean Dorward. |
| * |
| * Copyright (c) 2002-2006 by Lucent Technologies. |
| * Portions Copyright (c) 2004 Google Inc. |
| * |
| * Permission to use, copy, modify, and distribute this software for any |
| * purpose without fee is hereby granted, provided that this entire notice |
| * is included in all copies of any software which is or includes a copy |
| * or modification of this software and in all copies of the supporting |
| * documentation for such software. |
| * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES |
| * NOR GOOGLE INC MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING |
| * THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. |
| */ |
| |
| #include <u.h> |
| #include <libc.h> |
| #include "fmtdef.h" |
| |
| /* format the output into f->to and return the number of characters fmted */ |
| |
| /* BUG: THIS FILE IS NOT UPDATED TO THE NEW SPEC */ |
| int |
| dorfmt(Fmt *f, const Rune *fmt) |
| { |
| Rune *rt, *rs; |
| int r; |
| char *t, *s; |
| int nfmt; |
| |
| nfmt = f->nfmt; |
| for(;;){ |
| if(f->runes){ |
| rt = (Rune*)f->to; |
| rs = (Rune*)f->stop; |
| while((r = *fmt++) && r != '%'){ |
| FMTRCHAR(f, rt, rs, r); |
| } |
| f->nfmt += rt - (Rune *)f->to; |
| f->to = rt; |
| if(!r) |
| return f->nfmt - nfmt; |
| f->stop = rs; |
| }else{ |
| t = (char*)f->to; |
| s = (char*)f->stop; |
| while((r = *fmt++) && r != '%'){ |
| FMTRUNE(f, t, f->stop, r); |
| } |
| f->nfmt += t - (char *)f->to; |
| f->to = t; |
| if(!r) |
| return f->nfmt - nfmt; |
| f->stop = s; |
| } |
| |
| fmt = (Rune*)__fmtdispatch(f, (Rune*)fmt, 1); |
| if(fmt == nil) |
| return -1; |
| } |
| return 0; /* not reached */ |
| } |