projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a9b186ba WJ |
1 | /* input_file.h header for input-file.c |
| 2 | Copyright (C) 1987 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GAS, the GNU Assembler. | |
| 5 | ||
| 6 | GAS is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 1, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GAS is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GAS; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 19 | ||
| 20 | /*"input_file.c":Operating-system dependant functions to read source files.*/ | |
| 21 | ||
| 22 | ||
| 23 | /* | |
| 24 | * No matter what the operating system, this module must provide the | |
| 25 | * following services to its callers. | |
| 26 | * | |
| 27 | * input_file_begin() Call once before anything else. | |
| 28 | * | |
| 29 | * input_file_end() Call once after everything else. | |
| 30 | * | |
| 31 | * input_file_buffer_size() Call anytime. Returns largest possible | |
| 32 | * delivery from | |
| 33 | * input_file_give_next_buffer(). | |
| 34 | * | |
| 35 | * input_file_open(name) Call once for each input file. | |
| 36 | * | |
| 37 | * input_file_give_next_buffer(where) Call once to get each new buffer. | |
| 38 | * Return 0: no more chars left in file, | |
| 39 | * the file has already been closed. | |
| 40 | * Otherwise: return a pointer to just | |
| 41 | * after the last character we read | |
| 42 | * into the buffer. | |
| 43 | * If we can only read 0 characters, then | |
| 44 | * end-of-file is faked. | |
| 45 | * | |
| 46 | * All errors are reported (using as_perror) so caller doesn't have to think | |
| 47 | * about I/O errors. No I/O errors are fatal: an end-of-file may be faked. | |
| 48 | */ | |
| 49 | ||
| 50 | void input_file_begin(); | |
| 51 | void input_file_end(); | |
| 52 | int input_file_buffer_size(); | |
| 53 | int input_file_is_open(); | |
| 54 | void input_file_open(); | |
| 55 | char * input_file_give_next_buffer(); | |
| 56 | ||
| 57 | /* end: input_file.h */ |