bool next_token(const char **ptr, char *buff, const char *sep, size_t bufsize);
bool strnequal(const char *s1,const char *s2,size_t n);
bool strcsequal(const char *s1,const char *s2);
-void strnorm(char *s, int case_default);
+bool strnorm(char *s, int case_default);
char *push_skip_string(char *buf);
char *skip_string(const char *base, size_t len, char *buf);
size_t str_charnum(const char *s);