mirror of
https://github.com/9fans/plan9port.git
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66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
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/*
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* The authors of this software are Rob Pike and Ken Thompson.
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* Copyright (c) 2002 by Lucent Technologies.
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* Permission to use, copy, modify, and distribute this software for any
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* purpose without fee is hereby granted, provided that this entire notice
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* is included in all copies of any software which is or includes a copy
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* or modification of this software and in all copies of the supporting
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* documentation for such software.
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* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY
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* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
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* OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <stdlib.h>
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#include "utf.h"
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#include "fmt.h"
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#include "fmtdef.h"
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static int
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fmtStrFlush(Fmt *f)
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{
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char *s;
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int n;
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n = (int)f->farg;
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n += 256;
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f->farg = (void*)n;
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s = (char*)f->start;
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f->start = realloc(s, n);
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if(f->start == nil){
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f->start = s;
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return 0;
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}
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f->to = (char*)f->start + ((char*)f->to - s);
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f->stop = (char*)f->start + n - 1;
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return 1;
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}
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int
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fmtstrinit(Fmt *f)
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{
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int n;
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f->runes = 0;
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n = 32;
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f->start = malloc(n);
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if(f->start == nil)
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return -1;
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f->to = f->start;
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f->stop = (char*)f->start + n - 1;
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f->flush = fmtStrFlush;
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f->farg = (void*)n;
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f->nfmt = 0;
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return 0;
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}
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char*
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fmtstrflush(Fmt *f)
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{
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*(char*)f->to = '\0';
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f->to = f->start;
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return (char*)f->start;
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}
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