forked from KolibriOS/kolibrios
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
|
/* input_file.h header for input-file.c
|
||
|
|
Copyright 1987, 1992, 1993, 2000, 2003, 2005, 2006, 2007, 2012
|
||
|
|
Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GAS, the GNU Assembler.
|
||
|
|
|
||
|
|
GAS 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 3, or (at your option)
|
||
|
|
any later version.
|
||
|
|
|
||
|
|
GAS 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 GAS; see the file COPYING. If not, write to the Free
|
||
|
|
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
|
||
|
|
02110-1301, USA. */
|
||
|
|
|
||
|
|
/*"input_file.c":Operating-system dependant functions to read source files.*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* No matter what the operating system, this module must provide the
|
||
|
|
* following services to its callers.
|
||
|
|
*
|
||
|
|
* input_file_begin() Call once before anything else.
|
||
|
|
*
|
||
|
|
* input_file_end() Call once after everything else.
|
||
|
|
*
|
||
|
|
* input_file_buffer_size() Call anytime. Returns largest possible
|
||
|
|
* delivery from
|
||
|
|
* input_file_give_next_buffer().
|
||
|
|
*
|
||
|
|
* input_file_open(name) Call once for each input file.
|
||
|
|
*
|
||
|
|
* input_file_give_next_buffer(where) Call once to get each new buffer.
|
||
|
|
* Return 0: no more chars left in file,
|
||
|
|
* the file has already been closed.
|
||
|
|
* Otherwise: return a pointer to just
|
||
|
|
* after the last character we read
|
||
|
|
* into the buffer.
|
||
|
|
* If we can only read 0 characters, then
|
||
|
|
* end-of-file is faked.
|
||
|
|
*
|
||
|
|
* input_file_push() Push state, which can be restored
|
||
|
|
* later. Does implicit input_file_begin.
|
||
|
|
* Returns char * to saved state.
|
||
|
|
*
|
||
|
|
* input_file_pop (arg) Pops previously saved state.
|
||
|
|
*
|
||
|
|
* input_file_close () Closes opened file.
|
||
|
|
*
|
||
|
|
* All errors are reported so caller doesn't have to think
|
||
|
|
* about I/O errors.
|
||
|
|
*/
|
||
|
|
|
||
|
|
char *input_file_give_next_buffer (char *where);
|
||
|
|
char *input_file_push (void);
|
||
|
|
size_t input_file_buffer_size (void);
|
||
|
|
void input_file_begin (void);
|
||
|
|
void input_file_close (void);
|
||
|
|
void input_file_end (void);
|
||
|
|
void input_file_open (char *filename, int pre);
|
||
|
|
void input_file_pop (char *arg);
|