| /* This is part of libio/iostream, providing -*- C++ -*- input/output. |
| Copyright (C) 1993 Free Software Foundation |
| |
| This file is part of the GNU IO 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 Per Bothner (bothner@cygnus.com). */ |
| |
| #ifndef _PFSTREAM_H |
| #define _PFSTREAM_H |
| #ifdef __GNUG__ |
| #pragma interface |
| #endif |
| #include <fstream.h> |
| |
| extern "C++" { |
| // ipfstream foo("NAME") is like: ifstream foo("NAME"). However, |
| // if NAME starts *or ends* with a '|', the remainder of NAME is |
| // evaluated as a shell command (using a procbuf), and all input |
| // read from foo is whatever that shell writes to its standard output. |
| // E.g. ipfstream foo("|zcat foo.Z") or ipfstream foo("zcat foo.Z|") |
| // (These two forms are equivalent.) |
| |
| class ipfstream : public ifstream { |
| public: |
| ipfstream(const char *name, int mode=ios::in, int prot=0664); |
| }; |
| |
| // opfstream foo("NAME") is like: ofstream foo("NAME"). |
| // However, if NAME starts with a '|', the remainder of NAME is |
| // evaluated as a shell command (using a procbuf), and all output |
| // written to foo is piped to the standard input of that shell. |
| // E.g. opfstream foo("|more"); |
| |
| class opfstream : public ofstream { |
| public: |
| opfstream(const char *name, int mode=ios::out, int prot=0664); |
| }; |
| } // extern "C++" |
| #endif /*!_PFSTREAM_H*/ |
| |