diff options
Diffstat (limited to 'src/lib9/fmt/dorfmt.c')
-rw-r--r-- | src/lib9/fmt/dorfmt.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/lib9/fmt/dorfmt.c b/src/lib9/fmt/dorfmt.c new file mode 100644 index 000000000..672742f02 --- /dev/null +++ b/src/lib9/fmt/dorfmt.c @@ -0,0 +1,65 @@ +/* + * 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 */ +} |