| 0,0 → 1,33 |
|---|
| /* |
| * a variety of helper functions |
| * Copyright (C) 2021 Mateusz Viste |
| */ |
| |
| #include "helpers.h" |
| |
| /* case-insensitive comparison of strings, returns non-zero on equality */ |
| int imatch(const char *s1, const char *s2) { |
| for (;;) { |
| char c1, c2; |
| c1 = *s1; |
| c2 = *s2; |
| if ((c1 >= 'a') && (c1 <= 'z')) c1 -= ('a' - 'A'); |
| if ((c2 >= 'a') && (c2 <= 'z')) c2 -= ('a' - 'A'); |
| /* */ |
| if (c1 != c2) return(0); |
| if (c1 == 0) return(1); |
| s1++; |
| s2++; |
| } |
| } |
| |
| |
| /* returns zero if s1 starts with s2 */ |
| int strstartswith(const char *s1, const char *s2) { |
| while (*s2 != 0) { |
| if (*s1 != *s2) return(-1); |
| s1++; |
| s2++; |
| } |
| return(0); |
| } |