contrib/ncurses/progs/transform.c

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  28
  29 /****************************************************************************
  30  *  Author: Thomas E. Dickey                                                *
  31  ****************************************************************************/
  32 #include <progs.priv.h>
  33 #include <string.h>
  34
  35 #include <transform.h>
  36
  37 MODULE_ID("$Id: transform.c,v 1.3 2011/05/14 22:41:17 tom Exp $")
  38
  39 #ifdef SUFFIX_IGNORED
  40 static void
  41 trim_suffix(const char *a, size_t *len)
  42 {
  43     const char ignore[] = SUFFIX_IGNORED;
  44
  45     if (sizeof(ignore) != 0) {
  46         bool trim = FALSE;
  47         size_t need = (sizeof(ignore) - 1);
  48
  49         if (*len > need) {
  50             size_t first = *len - need;
  51             size_t n;
  52             trim = TRUE;
  53             for (n = first; n < *len; ++n) {
  54                 if (tolower(UChar(a[n])) != tolower(UChar(ignore[n - first]))) {
  55                     trim = FALSE;
  56                     break;
  57                 }
  58             }
  59             if (trim) {
  60                 *len -= need;
  61             }
  62         }
  63     }
  64 }
  65 #else
  66 #define trim_suffix(a, len)     /* nothing */
  67 #endif
  68
  69 bool
  70 same_program(const char *a, const char *b)
  71 {
  72     size_t len_a = strlen(a);
  73     size_t len_b = strlen(b);
  74
  75     trim_suffix(a, &len_a);
  76     trim_suffix(b, &len_b);
  77
  78     return (len_a == len_b) && (strncmp(a, b, len_a) == 0);
  79 }