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Diffstat (limited to 'gas/input-file.h')
-rw-r--r-- | gas/input-file.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/gas/input-file.h b/gas/input-file.h new file mode 100644 index 0000000..129bf28 --- /dev/null +++ b/gas/input-file.h @@ -0,0 +1,68 @@ +/* input_file.h header for input-file.c + Copyright (C) 1987, 1992 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 2, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 (using as_perror) so caller doesn't have to think + * about I/O errors. No I/O errors are fatal: an end-of-file may be faked. + */ + +char *input_file_give_next_buffer PARAMS ((char *where)); +char *input_file_push PARAMS ((void)); +unsigned int input_file_buffer_size PARAMS ((void)); +int input_file_is_open PARAMS ((void)); +void input_file_begin PARAMS ((void)); +void input_file_close PARAMS ((void)); +void input_file_end PARAMS ((void)); +void input_file_open PARAMS ((char *filename, int pre)); +void input_file_pop PARAMS ((char *arg)); + +/* end of input_file.h */ |