view dmd/lstring.c @ 1103:b30fe7e1dbb9

- Updated to DMD frontend 1.041. - Removed dmd/inifile.c , it's not under a free license, replaced with libconfig based config file.
author Tomas Lindquist Olsen <tomas.l.olsen gmail.com>
date Thu, 12 Mar 2009 20:37:27 +0100
parents c53b6e3fe49a
children eeb8b95ea92e
line wrap: on
line source
// lstring.c

// Copyright (c) 1999-2002 by Digital Mars
// All Rights Reserved
// written by Walter Bright
// www.digitalmars.com
// License for redistribution is by either the Artistic License
// in artistic.txt, or the GNU General Public License in gnu.txt.
// See the included readme.txt for details.

#include <stdlib.h>

#include "dchar.h"
#include "rmem.h"
#include "lstring.h"

Lstring Lstring::zero = LSTRING_EMPTY();

Lstring *Lstring::ctor(const dchar *p, unsigned length)
{
    Lstring *s;

    s = alloc(length);
    memcpy(s->string, p, length * sizeof(dchar));
    return s;
}

Lstring *Lstring::alloc(unsigned length)
{
    Lstring *s;

    s = (Lstring *)mem.malloc(size(length));
    s->length = length;
    s->string[length] = 0;
    return s;
}

Lstring *Lstring::append(const Lstring *s)
{
    Lstring *t;

    if (!s->length)
	return this;
    t = alloc(length + s->length);
    memcpy(t->string, string, length * sizeof(dchar));
    memcpy(t->string + length, s->string, s->length * sizeof(dchar));
    return t;
}

Lstring *Lstring::substring(int start, int end)
{
    Lstring *t;

    if (start == end)
	return &zero;
    t = alloc(end - start);
    memcpy(t->string, string + start, (end - start) * sizeof(dchar));
    return t;
}