| 1 | /* Helper routines for C support in GDB. |
| 2 | Copyright (C) 2017-2019 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program 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 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef C_SUPPORT_H |
| 20 | #define C_SUPPORT_H |
| 21 | |
| 22 | #include "safe-ctype.h" |
| 23 | |
| 24 | /* Like ISALPHA, but also returns true for the union of all UTF-8 |
| 25 | multi-byte sequence bytes and non-ASCII characters in |
| 26 | extended-ASCII charsets (e.g., Latin1). I.e., returns true if the |
| 27 | high bit is set. Note that not all UTF-8 ranges are allowed in C++ |
| 28 | identifiers, but we don't need to be pedantic so for simplicity we |
| 29 | ignore that here. Plus this avoids the complication of actually |
| 30 | knowing what was the right encoding. */ |
| 31 | |
| 32 | static inline bool |
| 33 | c_ident_is_alpha (unsigned char ch) |
| 34 | { |
| 35 | return ISALPHA (ch) || ch >= 0x80; |
| 36 | } |
| 37 | |
| 38 | /* Similarly, but Like ISALNUM. */ |
| 39 | |
| 40 | static inline bool |
| 41 | c_ident_is_alnum (unsigned char ch) |
| 42 | { |
| 43 | return ISALNUM (ch) || ch >= 0x80; |
| 44 | } |
| 45 | |
| 46 | #endif /* C_SUPPORT_H */ |