Subversion Repositories planix.SVN

/*
 * The authors of this software are Rob Pike and Ken Thompson.
 *              Copyright (c) 2002 by Lucent Technologies.
 * 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 MAKE ANY
 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
 */
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include "utf.h"
#include "fmt.h"
#include "fmtdef.h"

static int
runeFmtStrFlush(Fmt *f)
{
        Rune *s;
        int n;

        n = (int)f->farg;
        n += 256;
        f->farg = (void*)n;
        s = (Rune*)f->start;
        f->start = realloc(s, sizeof(Rune)*n);
        if(f->start == nil){
                f->start = s;
                return 0;
        }
        f->to = (Rune*)f->start + ((Rune*)f->to - s);
        f->stop = (Rune*)f->start + n - 1;
        return 1;
}

int
runefmtstrinit(Fmt *f)
{
        int n;

        f->runes = 1;
        n = 32;
        f->start = malloc(sizeof(Rune)*n);
        if(f->start == nil)
                return -1;
        f->to = f->start;
        f->stop = (Rune*)f->start + n - 1;
        f->flush = runeFmtStrFlush;
        f->farg = (void*)n;
        f->nfmt = 0;
        return 0;
}

Rune*
runefmtstrflush(Fmt *f)
{
        *(Rune*)f->to = '\0';
        f->to = f->start;
        return f->start;
}