| /* readline.c --- Simple implementation of readline. |
| Copyright (C) 2005-2007, 2009-2020 Free Software Foundation, Inc. |
| Written by Simon Josefsson |
| |
| 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 3 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, see <https://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| /* This module is intended to be used when the application only needs |
| the readline interface. If you need more functions from the |
| readline library, it is recommended to require the readline library |
| (or improve this module) rather than #if-protect part of your |
| application (doing so would add assumptions of this module into |
| your application). The application should use #include |
| "readline.h", that header file will include <readline/readline.h> |
| if the real library is present on the system. */ |
| |
| /* Get specification. */ |
| #include "readline.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| char * |
| readline (const char *prompt) |
| { |
| char *out = NULL; |
| size_t size = 0; |
| |
| if (prompt) |
| { |
| fputs (prompt, stdout); |
| fflush (stdout); |
| } |
| |
| if (getline (&out, &size, stdin) < 0) |
| return NULL; |
| |
| while (*out && (out[strlen (out) - 1] == '\r' |
| || out[strlen (out) - 1] == '\n')) |
| out[strlen (out) - 1] = '\0'; |
| |
| return out; |
| } |