540 lines
14 KiB
C++
540 lines
14 KiB
C++
// Member templates for the -*- C++ -*- string classes.
|
|
// Copyright (C) 1994 Free Software Foundation
|
|
|
|
// This file is part of the GNU ANSI C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 2, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this library; see the file COPYING. If not, write to the Free
|
|
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
// As a special exception, if you link this library with files
|
|
// compiled with a GNU compiler to produce an executable, this does not cause
|
|
// the resulting executable to be covered by the GNU General Public License.
|
|
// This exception does not however invalidate any other reasons why
|
|
// the executable file might be covered by the GNU General Public License.
|
|
|
|
// Written by Jason Merrill based upon the specification by Takanori Adachi
|
|
// in ANSI X3J16/94-0013R2.
|
|
|
|
#include <cstddef>
|
|
#include <std/bastring.h>
|
|
|
|
extern "C++" {
|
|
template <class charT, class traits, class Allocator>
|
|
inline void * basic_string <charT, traits, Allocator>::Rep::
|
|
operator new (size_t s, size_t extra)
|
|
{
|
|
return Allocator::allocate(s + extra * sizeof (charT));
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline void basic_string <charT, traits, Allocator>::Rep::
|
|
operator delete (void * ptr)
|
|
{
|
|
Allocator::deallocate(ptr, sizeof(Rep) +
|
|
reinterpret_cast<Rep *>(ptr)->res *
|
|
sizeof (charT));
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline size_t basic_string <charT, traits, Allocator>::Rep::
|
|
#if _G_ALLOC_CONTROL
|
|
default_frob (size_t s)
|
|
#else
|
|
frob_size (size_t s)
|
|
#endif
|
|
{
|
|
size_t i = 16;
|
|
while (i < s) i *= 2;
|
|
return i;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline basic_string <charT, traits, Allocator>::Rep *
|
|
basic_string <charT, traits, Allocator>::Rep::
|
|
create (size_t extra)
|
|
{
|
|
extra = frob_size (extra + 1);
|
|
Rep *p = new (extra) Rep;
|
|
p->res = extra;
|
|
p->ref = 1;
|
|
p->selfish = false;
|
|
return p;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
charT * basic_string <charT, traits, Allocator>::Rep::
|
|
clone ()
|
|
{
|
|
Rep *p = Rep::create (len);
|
|
p->copy (0, data (), len);
|
|
p->len = len;
|
|
return p->data ();
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline bool basic_string <charT, traits, Allocator>::Rep::
|
|
#ifdef _G_ALLOC_CONTROL
|
|
default_excess (size_t s, size_t r)
|
|
#else
|
|
excess_slop (size_t s, size_t r)
|
|
#endif
|
|
{
|
|
return 2 * (s <= 16 ? 16 : s) < r;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline bool basic_string <charT, traits, Allocator>::
|
|
check_realloc (basic_string::size_type s) const
|
|
{
|
|
s += sizeof (charT);
|
|
rep ()->selfish = false;
|
|
return (rep ()->ref > 1
|
|
|| s > capacity ()
|
|
|| Rep::excess_slop (s, capacity ()));
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
void basic_string <charT, traits, Allocator>::
|
|
alloc (basic_string::size_type size, bool save)
|
|
{
|
|
if (! check_realloc (size))
|
|
return;
|
|
|
|
Rep *p = Rep::create (size);
|
|
|
|
if (save)
|
|
{
|
|
p->copy (0, data (), length ());
|
|
p->len = length ();
|
|
}
|
|
else
|
|
p->len = 0;
|
|
|
|
repup (p);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>&
|
|
basic_string <charT, traits, Allocator>::
|
|
replace (size_type pos1, size_type n1,
|
|
const basic_string& str, size_type pos2, size_type n2)
|
|
{
|
|
const size_t len2 = str.length ();
|
|
|
|
if (pos1 == 0 && n1 >= length () && pos2 == 0 && n2 >= len2)
|
|
return operator= (str);
|
|
|
|
OUTOFRANGE (pos2 > len2);
|
|
|
|
if (n2 > len2 - pos2)
|
|
n2 = len2 - pos2;
|
|
|
|
return replace (pos1, n1, str.data () + pos2, n2);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline void basic_string <charT, traits, Allocator>::Rep::
|
|
copy (size_t pos, const charT *s, size_t n)
|
|
{
|
|
if (n)
|
|
traits::copy (data () + pos, s, n);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline void basic_string <charT, traits, Allocator>::Rep::
|
|
move (size_t pos, const charT *s, size_t n)
|
|
{
|
|
if (n)
|
|
traits::move (data () + pos, s, n);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>&
|
|
basic_string <charT, traits, Allocator>::
|
|
replace (size_type pos, size_type n1, const charT* s, size_type n2)
|
|
{
|
|
const size_type len = length ();
|
|
OUTOFRANGE (pos > len);
|
|
if (n1 > len - pos)
|
|
n1 = len - pos;
|
|
LENGTHERROR (len - n1 > max_size () - n2);
|
|
size_t newlen = len - n1 + n2;
|
|
|
|
if (check_realloc (newlen))
|
|
{
|
|
Rep *p = Rep::create (newlen);
|
|
p->copy (0, data (), pos);
|
|
p->copy (pos + n2, data () + pos + n1, len - (pos + n1));
|
|
p->copy (pos, s, n2);
|
|
repup (p);
|
|
}
|
|
else
|
|
{
|
|
rep ()->move (pos + n2, data () + pos + n1, len - (pos + n1));
|
|
rep ()->copy (pos, s, n2);
|
|
}
|
|
rep ()->len = newlen;
|
|
|
|
return *this;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline void basic_string <charT, traits, Allocator>::Rep::
|
|
set (size_t pos, const charT c, size_t n)
|
|
{
|
|
traits::set (data () + pos, c, n);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>& basic_string <charT, traits, Allocator>::
|
|
replace (size_type pos, size_type n1, size_type n2, charT c)
|
|
{
|
|
const size_t len = length ();
|
|
OUTOFRANGE (pos > len);
|
|
if (n1 > len - pos)
|
|
n1 = len - pos;
|
|
LENGTHERROR (len - n1 > max_size () - n2);
|
|
size_t newlen = len - n1 + n2;
|
|
|
|
if (check_realloc (newlen))
|
|
{
|
|
Rep *p = Rep::create (newlen);
|
|
p->copy (0, data (), pos);
|
|
p->copy (pos + n2, data () + pos + n1, len - (pos + n1));
|
|
p->set (pos, c, n2);
|
|
repup (p);
|
|
}
|
|
else
|
|
{
|
|
rep ()->move (pos + n2, data () + pos + n1, len - (pos + n1));
|
|
rep ()->set (pos, c, n2);
|
|
}
|
|
rep ()->len = newlen;
|
|
|
|
return *this;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
void basic_string <charT, traits, Allocator>::
|
|
resize (size_type n, charT c)
|
|
{
|
|
LENGTHERROR (n > max_size ());
|
|
|
|
if (n > length ())
|
|
append (n - length (), c);
|
|
else
|
|
erase (n);
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
copy (charT* s, size_type n, size_type pos)
|
|
{
|
|
OUTOFRANGE (pos > length ());
|
|
|
|
if (n > length () - pos)
|
|
n = length () - pos;
|
|
|
|
traits::copy (s, data () + pos, n);
|
|
return n;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
size_t xpos = pos;
|
|
for (; xpos + n <= length (); ++xpos)
|
|
if (traits::eq (data () [xpos], *s)
|
|
&& traits::compare (data () + xpos, s, n) == 0)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
inline basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
_find (const charT* ptr, charT c, size_type xpos, size_type len)
|
|
{
|
|
for (; xpos < len; ++xpos)
|
|
if (traits::eq (ptr [xpos], c))
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find (charT c, size_type pos) const
|
|
{
|
|
return _find (data (), c, pos, length ());
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
rfind (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
if (n > length ())
|
|
return npos;
|
|
|
|
size_t xpos = length () - n;
|
|
if (xpos > pos)
|
|
xpos = pos;
|
|
|
|
for (++xpos; xpos-- > 0; )
|
|
if (traits::eq (data () [xpos], *s)
|
|
&& traits::compare (data () + xpos, s, n) == 0)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
rfind (charT c, size_type pos) const
|
|
{
|
|
if (1 > length ())
|
|
return npos;
|
|
|
|
size_t xpos = length () - 1;
|
|
if (xpos > pos)
|
|
xpos = pos;
|
|
|
|
for (++xpos; xpos-- > 0; )
|
|
if (traits::eq (data () [xpos], c))
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_first_of (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
size_t xpos = pos;
|
|
for (; xpos < length (); ++xpos)
|
|
if (_find (s, data () [xpos], 0, n) != npos)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_last_of (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
size_t xpos = length () - 1;
|
|
if (xpos > pos)
|
|
xpos = pos;
|
|
for (; xpos; --xpos)
|
|
if (_find (s, data () [xpos], 0, n) != npos)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_first_not_of (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
size_t xpos = pos;
|
|
for (; xpos < length (); ++xpos)
|
|
if (_find (s, data () [xpos], 0, n) == npos)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_first_not_of (charT c, size_type pos) const
|
|
{
|
|
size_t xpos = pos;
|
|
for (; xpos < length (); ++xpos)
|
|
if (traits::ne (data () [xpos], c))
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_last_not_of (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
size_t xpos = length () - 1;
|
|
if (xpos > pos)
|
|
xpos = pos;
|
|
for (; xpos; --xpos)
|
|
if (_find (s, data () [xpos], 0, n) == npos)
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::
|
|
find_last_not_of (charT c, size_type pos) const
|
|
{
|
|
size_t xpos = length () - 1;
|
|
if (xpos > pos)
|
|
xpos = pos;
|
|
for (; xpos; --xpos)
|
|
if (traits::ne (data () [xpos], c))
|
|
return xpos;
|
|
return npos;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
int basic_string <charT, traits, Allocator>::
|
|
compare (const basic_string& str, size_type pos, size_type n) const
|
|
{
|
|
OUTOFRANGE (pos > length ());
|
|
|
|
size_t rlen = length () - pos;
|
|
if (rlen > n)
|
|
rlen = n;
|
|
if (rlen > str.length ())
|
|
rlen = str.length ();
|
|
int r = traits::compare (data () + pos, str.data (), rlen);
|
|
if (r != 0)
|
|
return r;
|
|
if (rlen == n)
|
|
return 0;
|
|
return (length () - pos) - str.length ();
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
int basic_string <charT, traits, Allocator>::
|
|
compare (const charT* s, size_type pos, size_type n) const
|
|
{
|
|
OUTOFRANGE (pos > length ());
|
|
|
|
size_t rlen = length () - pos;
|
|
if (rlen > n)
|
|
rlen = n;
|
|
int r = traits::compare (data () + pos, s, rlen);
|
|
if (r != 0)
|
|
return r;
|
|
return (length () - pos) - n;
|
|
}
|
|
|
|
#include <iostream.h>
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
istream &
|
|
operator>> (istream &is, basic_string <charT, traits, Allocator> &s)
|
|
{
|
|
int w = is.width (0);
|
|
if (is.ipfx0 ())
|
|
{
|
|
register streambuf *sb = is.rdbuf ();
|
|
s.resize (0);
|
|
while (1)
|
|
{
|
|
int ch = sb->sbumpc ();
|
|
if (ch == EOF)
|
|
{
|
|
is.setstate (ios::eofbit);
|
|
break;
|
|
}
|
|
else if (traits::is_del (ch))
|
|
{
|
|
sb->sungetc ();
|
|
break;
|
|
}
|
|
s += ch;
|
|
if (--w == 1)
|
|
break;
|
|
}
|
|
}
|
|
|
|
is.isfx ();
|
|
if (s.length () == 0)
|
|
is.setstate (ios::failbit);
|
|
|
|
return is;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
ostream &
|
|
operator<< (ostream &o, const basic_string <charT, traits, Allocator>& s)
|
|
{
|
|
return o.write (s.data (), s.length ());
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
istream&
|
|
getline (istream &is, basic_string <charT, traits, Allocator>& s, charT delim)
|
|
{
|
|
if (is.ipfx1 ())
|
|
{
|
|
_IO_size_t count = 0;
|
|
streambuf *sb = is.rdbuf ();
|
|
s.resize (0);
|
|
|
|
while (1)
|
|
{
|
|
int ch = sb->sbumpc ();
|
|
if (ch == EOF)
|
|
{
|
|
is.setstate (count == 0
|
|
? (ios::failbit|ios::eofbit)
|
|
: ios::eofbit);
|
|
break;
|
|
}
|
|
|
|
++count;
|
|
|
|
if (ch == delim)
|
|
break;
|
|
|
|
s += ch;
|
|
|
|
if (s.length () == s.npos - 1)
|
|
{
|
|
is.setstate (ios::failbit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// We need to be friends with istream to do this.
|
|
// is._gcount = count;
|
|
is.isfx ();
|
|
|
|
return is;
|
|
}
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
basic_string <charT, traits, Allocator>::Rep
|
|
basic_string<charT, traits, Allocator>::nilRep = { 0, 0, 1 };
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
const basic_string <charT, traits, Allocator>::size_type
|
|
basic_string <charT, traits, Allocator>::npos;
|
|
|
|
#ifdef _G_ALLOC_CONTROL
|
|
template <class charT, class traits, class Allocator>
|
|
bool (*basic_string <charT, traits, Allocator>::Rep::excess_slop) (size_t, size_t)
|
|
= basic_string <charT, traits, Allocator>::Rep::default_excess;
|
|
|
|
template <class charT, class traits, class Allocator>
|
|
size_t (*basic_string <charT, traits, Allocator>::Rep::frob_size) (size_t)
|
|
= basic_string <charT, traits, Allocator>::Rep::default_frob;
|
|
#endif
|
|
|
|
} // extern "C++"
|