Free Hero Mesh

  int n=0;
  int i;
  for(;;) {
    nxttok();
    if(tokent==TF_CLOSE) break;
    if(!Tokenf(TF_NAME) || tokenv!=OP_STRING) ParseError("String expected\n");
    i=strlen(tokenstr);
    if(i+n>=0x2FFD) ParseError("Help text is too long\n");
    if(i+n>=0x2FFA) ParseError("Help text is too long\n");
    strcpy(txt+n,tokenstr);
    n+=i;
    txt[n++]=10;
    txt[n]=0;
  }
  if(!n) {
    free(txt);
    return 0;
  }
  txt[n]=0;
  return realloc(txt,n+1)?:txt;