Function buffreplace

deps/lua/src/llex.c:171–176

static void buffreplace (LexState *ls, char from, char to) {
  size_t n = luaZ_bufflen(ls->buff);
  char *p = luaZ_buffer(ls->buff);
  while (n--)
    if (p[n] == from) p[n] = to;
}


static void trydecpoint (LexState *ls, SemInfo *seminfo) {