| /* |
| * R : A Computer Language for Statistical Data Analysis |
| * Copyright (C) 1995,1996 Robert Gentleman and Ross Ihaka |
| * Copyright (C) 1997-2014 The R Core Team |
| * |
| * 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, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| /*--------------------------------------------------------------------------*/ |
| /* Formerly in gram.y */ |
| |
| /* Basic File IO : This code is here because at this particular instant */ |
| /* it seems closely related to cget(), which appears below. But now it */ |
| /* doesn't. */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include "Defn.h" |
| |
| attribute_hidden |
| int R_fgetc(FILE *fp) |
| { |
| #ifdef Win32 |
| int c; |
| static int nexteof=0; |
| if (nexteof) { |
| nexteof = 0; |
| return R_EOF; |
| } |
| c = fgetc(fp); |
| if (c==EOF) { |
| nexteof = 1; |
| return '\n'; |
| } |
| #else |
| int c = fgetc(fp); |
| #endif |
| /* get rid of CR in CRLF line termination */ |
| if (c == '\r') { |
| c = fgetc(fp); |
| /* retain CR's with no following linefeed */ |
| if (c != '\n') { |
| ungetc(c,fp); |
| return('\r'); |
| } |
| } |
| #ifdef Win32 |
| return c; |
| #else |
| return feof(fp) ? R_EOF : c; |
| #endif |
| } |