util/nvramtool/accessors/layout-common.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <ctype.h>
   4
   5 #include "layout-text.h"
   6
   7 static int is_ident_nondigit(int c)
   8 {
   9         int result;
  10         switch(c) {
  11         case 'A':       case 'B':       case 'C':       case 'D':
  12         case 'E':       case 'F':       case 'G':       case 'H':
  13         case 'I':       case 'J':       case 'K':       case 'L':
  14         case 'M':       case 'N':       case 'O':       case 'P':
  15         case 'Q':       case 'R':       case 'S':       case 'T':
  16         case 'U':       case 'V':       case 'W':       case 'X':
  17         case 'Y':       case 'Z':
  18         case 'a':       case 'b':       case 'c':       case 'd':
  19         case 'e':       case 'f':       case 'g':       case 'h':
  20         case 'i':       case 'j':       case 'k':       case 'l':
  21         case 'm':       case 'n':       case 'o':       case 'p':
  22         case 'q':       case 'r':       case 's':       case 't':
  23         case 'u':       case 'v':       case 'w':       case 'x':
  24         case 'y':       case 'z':
  25         case '_':
  26                 result = 1;
  27                 break;
  28         default:
  29                 result = 0;
  30                 break;
  31         }
  32         return result;
  33 }
  34
  35 int is_ident(char *str)
  36 {
  37         int result;
  38         int ch;
  39         ch = *str;
  40         result = 0;
  41         if (is_ident_nondigit(ch)) {
  42                 do {
  43                         str++;
  44                         ch = *str;
  45                 } while(ch && (is_ident_nondigit(ch) || (isdigit(ch))));
  46                 result = (ch == '\0');
  47         }
  48         return result;
  49 }