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/* Copyright (C) 2004 Garrett A. Kajmowicz
This file is part of the uClibc++ Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <basic_definitions>
#ifndef HEADER_STD_SSTREAM
#define HEADER_STD_SSTREAM 1
#include <iosfwd>
#include <ios>
#include <istream>
#include <ostream>
#include <iostream>
#include <string>
#pragma GCC visibility push(default)
namespace std{
template <class charT, class traits, class Allocator>
class _UCXXEXPORT basic_stringbuf : public basic_streambuf<charT,traits>
{
public:
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
typedef typename Allocator::size_type size_type;
explicit _UCXXEXPORT basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out)
: data(), ielement(0), oelement(0)
{
basic_streambuf<charT,traits>::openedFor = which;
}
explicit _UCXXEXPORT basic_stringbuf(const basic_string<charT,traits,Allocator>& str,
ios_base::openmode which = ios_base::in | ios_base::out)
: data(str), ielement(0), oelement(0)
{
if(which & ios_base::ate){
oelement = data.length();
}
basic_streambuf<charT,traits>::openedFor = which;
}
virtual _UCXXEXPORT ~basic_stringbuf() { }
_UCXXEXPORT basic_string<charT,traits,Allocator> str() const{
return data;
}
_UCXXEXPORT void str(const basic_string<charT,traits,Allocator>& s){
data = s;
ielement = 0;
if(basic_streambuf<charT,traits>::openedFor & ios_base::ate){
oelement = data.length();
}else{
oelement = 0;
}
}
protected:
virtual _UCXXEXPORT int sync(){
return 0;
}
virtual _UCXXEXPORT int_type underflow(){
if(ielement >= data.length()){
return traits::eof();
}
return traits::to_int_type(data[ielement]);
}
virtual _UCXXEXPORT int_type uflow(){
int_type retval = underflow();
if(retval != traits::eof()){
++ielement;
}
return retval;
}
virtual _UCXXEXPORT int_type pbackfail(int_type c = traits::eof()){
//Error possibilities
if(ielement == 0){
return traits::eof();
}
if(ielement > data.length()){
ielement = data.length();
return traits::eof();
}
//eof passed in
if(traits::eq_int_type(c,traits::eof())==true){
--ielement;
return traits::not_eof(c);
}
if(traits::eq(traits::to_char_type(c),data[ielement-1]) == true){
--ielement;
return c;
}
if(basic_streambuf<charT,traits>::openedFor & ios_base::out){
--ielement;
data[ielement] = c;
return c;
}
return traits::eof();
}
virtual _UCXXEXPORT int showmanyc(){
return data.length() - ielement;
}
virtual _UCXXEXPORT streamsize xsgetn(char_type* c, streamsize n){
streamsize i = 0;
while(ielement < data.length() && i < n ){
c[i] = data[ielement];
++i;
++ielement;
}
return i;
}
virtual _UCXXEXPORT int_type overflow (int_type c = traits::eof()){
//Nothing to do
if(traits::eq_int_type(c,traits::eof())){
return traits::not_eof(c);
}
//Actually add character, if possible
if(basic_streambuf<charT,traits>::openedFor & ios_base::out){
if(oelement >= data.length()){
data.push_back(c);
}else{
data[oelement] = c;
}
++oelement;
return c;
}
//Not possible
return traits::eof();
}
virtual _UCXXEXPORT basic_streambuf<charT,traits>* setbuf(charT*, streamsize){
//This function does nothing
return this;
}
virtual _UCXXEXPORT streamsize xsputn(const char_type* s, streamsize n){
data.replace(oelement, n, s, n);
oelement += n;
return n;
}
virtual _UCXXEXPORT pos_type seekoff(off_type off, ios_base::seekdir way,
ios_base::openmode which = ios_base::in | ios_base::out)
{
//Test for invalid option
if( (which & ios_base::in) && (which & ios_base::out) && (way == ios_base::cur)){
return -1;
}
//Calculate new location
size_type newpos = 0;
if(way == ios_base::beg){
newpos = off;
}else if(way == ios_base::cur){
if(which & ios_base::out){
newpos = data.length() + off;
}
if(which & ios_base::in){
newpos = ielement + off;
}
}else{
newpos = data.length() + off;
}
//Test for error conditions
if(newpos > data.length()){
return -1;
}
//Shuffle pointers
if(which & ios_base::in){
ielement = newpos;
}
if(which & ios_base::out){
data.resize(newpos);
if(ielement > data.length()){
ielement = data.length();
}
}
return newpos;
}
virtual _UCXXEXPORT pos_type seekpos(pos_type sp,
ios_base::openmode which = ios_base::in | ios_base::out)
{
return seekoff(sp, ios_base::beg, which);
}
basic_string<charT,traits,Allocator> data;
size_type ielement;
size_type oelement;
};
template <class charT, class traits, class Allocator> class _UCXXEXPORT basic_istringstream
: public basic_istream<charT,traits>
{
public:
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
explicit _UCXXEXPORT basic_istringstream(ios_base::openmode m = ios_base::in)
: basic_ios<charT, traits>(&sb), basic_istream<charT,traits>(&sb), sb(m)
{
}
explicit _UCXXEXPORT basic_istringstream( const basic_string<charT,traits,Allocator>& str,
ios_base::openmode which = ios_base::in)
: basic_ios<charT, traits>(&sb), basic_istream<charT,traits>(&sb), sb(str, which)
{
}
virtual _UCXXEXPORT ~basic_istringstream() { }
_UCXXEXPORT basic_stringbuf<charT,traits,Allocator>* rdbuf() const{
return &sb;
}
_UCXXEXPORT basic_string<charT,traits,Allocator> str() const{
return sb.str();
}
_UCXXEXPORT void str(const basic_string<charT,traits,Allocator>& s){
sb.str(s);
basic_istream<charT,traits>::clear();
}
private:
basic_stringbuf<charT,traits,Allocator> sb;
};
template <class charT, class traits, class Allocator> class _UCXXEXPORT basic_ostringstream
: public basic_ostream<charT,traits>
{
public:
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
explicit _UCXXEXPORT basic_ostringstream(ios_base::openmode m = ios_base::out)
: basic_ios<charT, traits>(&sb), basic_ostream<charT,traits>(&sb), sb(m)
{
}
explicit _UCXXEXPORT basic_ostringstream(const basic_string<charT,traits,Allocator>& str,
ios_base::openmode which = ios_base::out)
: basic_ios<charT, traits>(&sb), basic_ostream<charT,traits>(&sb), sb(str, which)
{
}
virtual _UCXXEXPORT ~basic_ostringstream() { }
_UCXXEXPORT basic_stringbuf<charT,traits,Allocator>* rdbuf() const{
return &sb;
}
_UCXXEXPORT basic_string<charT,traits,Allocator> str() const{
return sb.str();
}
_UCXXEXPORT void str(const basic_string<charT,traits,Allocator>& s){
sb.str(s);
basic_ostream<charT,traits>::clear();
}
private:
basic_stringbuf<charT,traits,Allocator> sb;
};
template <class charT, class traits, class Allocator> class _UCXXEXPORT basic_stringstream
: public basic_iostream<charT,traits>
{
public:
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
explicit _UCXXEXPORT basic_stringstream(ios_base::openmode which = ios_base::out|ios_base::in)
: basic_ios<charT, traits>(&sb), basic_iostream<charT,traits>(&sb), sb(which)
{
}
explicit _UCXXEXPORT basic_stringstream(const basic_string<charT,traits,Allocator>& str,
ios_base::openmode which = ios_base::out|ios_base::in)
: basic_ios<charT, traits>(&sb), basic_iostream<charT,traits>(&sb), sb(str, which)
{
}
virtual _UCXXEXPORT ~basic_stringstream(){ }
_UCXXEXPORT basic_stringbuf<charT,traits,Allocator>* rdbuf(){
return &sb;
}
_UCXXEXPORT basic_string<charT,traits,Allocator> str() const{
return sb.str();
}
_UCXXEXPORT void str(const basic_string<charT,traits,Allocator>& s){
sb.str(s);
basic_iostream<charT,traits>::clear();
}
private:
basic_stringbuf<charT, traits> sb;
};
#ifdef __UCLIBCXX_EXPAND_SSTREAM_CHAR__
#ifndef __UCLIBCXX_COMPILE_SSTREAM__
#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::
basic_stringbuf(ios_base::openmode which);
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::~basic_stringbuf();
#endif // __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
template <> _UCXXEXPORT basic_string<char, char_traits<char>, allocator<char> >
basic_stringbuf<char, char_traits<char>, allocator<char> >::str() const;
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::int_type
basic_stringbuf<char, char_traits<char>, allocator<char> >::
pbackfail(basic_stringbuf<char, char_traits<char>, allocator<char> >::int_type c);
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::pos_type
basic_stringbuf<char, char_traits<char>, allocator<char> >::
seekoff (basic_stringbuf<char, char_traits<char>, allocator<char> >::off_type off,
ios_base::seekdir way,
ios_base::openmode which
);
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::int_type
basic_stringbuf<char, char_traits<char>, allocator<char> >::
overflow (basic_stringbuf<char, char_traits<char>, allocator<char> >::int_type c);
template <> _UCXXEXPORT basic_stringbuf<char, char_traits<char>, allocator<char> >::int_type
basic_stringbuf<char, char_traits<char>, allocator<char> >::underflow ();
template <> _UCXXEXPORT streamsize basic_stringbuf<char, char_traits<char>, allocator<char> >::
xsputn(const char* s, streamsize n);
#ifdef __UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
template <> _UCXXEXPORT basic_stringstream<char, char_traits<char>, allocator<char> >::
basic_stringstream(ios_base::openmode which);
template <> _UCXXEXPORT basic_stringstream<char, char_traits<char>, allocator<char> >::~basic_stringstream();
template <> _UCXXEXPORT basic_istringstream<char, char_traits<char>, allocator<char> >::~basic_istringstream();
template <> _UCXXEXPORT basic_ostringstream<char, char_traits<char>, allocator<char> >::~basic_ostringstream();
#endif //__UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS__
#endif
#endif
#pragma GCC visibility pop
}
#endif
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