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-rw-r--r--libc/stdio1/idealgetline.c67
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diff --git a/libc/stdio1/idealgetline.c b/libc/stdio1/idealgetline.c
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-/* idealgetline.c -- my idea of an ideal getline function for stdio
- Copyright (C) 1996 Joel N. Weber II <nemo@koa.iolani.honolulu.hi.us>
-
- This program 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
- of the License, or (at your option) any later version.
-
- This program 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 program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* I actually intend to use this in 32 bit programs, unlike the other stuff
- in this lib. IMHO GNU getline is broken. It is too hard to use.
-
- Just pass this function a FILE * and it will retrieve a line for you using
- getc(). It will realloc() exactly the amount of memory needed, and will
- generate error messages for non-ascii characters on stderr.
-
- This may not be your ideal. It probably generates far too many errors.
- It doesn't work well for those who don't use English (but since
- Linux-less-than-32 libc and kernels are each being produced by one
- person in the US and one in the UK, this isn't a problem). It probably
- is not what you (or I) want for interactive input.
-
- You're welcome to modify this routine to meet your needs. However, if
- you change the semantics significantly, please change the name.
-
- (Maybe I should have put my own name on it so there will be no confusion
- about who thought it was ideal). */
-
-#include <stdio.h>
-#include <malloc.h>
-
-char *idealgetline(f)
-FILE *f;
-{
- char c;
- char *ret;
- int size = 0, bufsize = 256;
-
- ret = malloc(256);
- c = getc(f);
- while ((c != EOF) && (c != '\n')){
- if ((c >= ' ') && (c <= 126)){
- ret[size] = c;
- size++;
- if (size == bufsize){
- bufsize += 256;
- ret = realloc(ret, bufsize);
- }
- } else {
- fprintf(stderr, "Unexpected character 0x%x encountered in input", c);
- free(ret);
- return 0;
- }
- }
- ret[size] = '\0';
- size++;
- return realloc(ret, size);
-}