gdb/c-support.h

   1 /* Helper routines for C support in GDB.
   2    Copyright (C) 2017-2020 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 */