Convert YouTube JSON to TSV

     sed 's/.\{4\}//' << eof|flex -8iCrf 
     /* youtube json to tsv */
    
     int fileno (FILE *);
     int setenv (const char *, const char *, int);
     #define echo do{if(fwrite(yytext,(size_t)yyleng,1,yyout)){}}while(0)
     #define jmp (yy_start) = 1 + 2 *
     #define pc(x) putchar(x)
     int request_type;
     int count_text;
     int count_simpletext;
     int count_baseurl;
     int count_videoid;
     void save_request(){setenv("request",yytext,1);}
     void save_channel(){setenv("channel",yytext,1);}
     void print_saved_channel(){fprintf(stdout,"\t%s",getenv("channel"));}
     void print_saved_request(){fprintf(stdout,"\t%s",getenv("request"));}
     void print_saved_request_type(){pc(9);if(request_type==1)pc(115);if(request_type==2)pc(99);}
     void try_to_omit_premieres(){if(yytext[0]=='*')jmp 0;} 
    
    pattern_initial_baseurl \"canonicalBaseUrl\":\"
    pattern_continuation_baseurl \"canonicalBaseUrl\":\40\"
    pattern_originalurl \"originalUrl\":\"https:\/\/www.youtube.com
    pattern_initial_video \"videoRenderer\":
    pattern_initial_grid \"gridVideoRenderer\":
    pattern_initial_movie \"movieRenderer\":
    pattern_continuation_compact\"compactVideoRenderer\":\40\173
    pattern_initial_videoid \"videoId\":\"
    pattern_continuation_videoid \"videoId\":\40\" 
    pattern_initial_text \"text\":\"
    pattern_continuation_text \"text\":\40\"
    pattern_initial_simpletext \"simpleText\":\"
    pattern_channel_name "/c/"
    pattern_channel_id "/channel/" 
    pattern_search_query "/results?search_query".{6} 
    
    %option nounput noinput noyywrap
    %s state_print_column1
    %s state_print_column2
    %s state_print_column4
    %s state_save_request_type1
    %s state_save_request_type2
    %s state_save_request
    %s state_save_channel
    %%
    
      /* 
      originalUrl 
      */
    {pattern_originalurl} jmp state_save_request;
     /* 
      will use as cols 5,6 
      */
    <state_save_request>\" jmp 0;
    <state_save_request>{pattern_channel_name}|{pattern_channel_id} jmp state_save_request_type2;
    <state_save_request>{pattern_search_query} jmp state_save_request_type1;
    <state_save_request_type2>[^/]* request_type=2;save_request();jmp 0;
    <state_save_request_type1>[^\"]* request_type=1;save_request();jmp 0;
    
      /* 
       videoRenderer gridVideoRenderer movieRenderer compactVideRenderer
       start of record reset counters
       */
    {pattern_initial_video}|{pattern_initial_grid}|{pattern_initial_movie}|{pattern_continuation_compact} {
     count_videoid=0;
     count_text=0;
     count_simpletext=0;
     count_baseurl=0;}
    
      /* 
       videoId 
       */
    {pattern_initial_videoid}|{pattern_continuation_videoid} {
     count_videoid++;jmp state_print_column1;}
      /*
       print 1
      */
    <state_print_column1>\" jmp 0; 
    <state_print_column1>[^\"]* if(count_videoid==1){echo;pc(9);}
    
      /* 
       canonicalBaseUrl 
      */
    {pattern_initial_baseurl}|{pattern_continuation_baseurl} {
     count_baseurl++;jmp state_save_channel;}
     /* 
       print 3 if search json
     */
    <state_save_channel>\" jmp 0;
    <state_save_channel>[^\"]* {
      save_channel();
      if(request_type==1)
      if(count_baseurl==1)
      print_saved_channel();} 
    
      /* 
       text 
      */
    {pattern_initial_text} {
     count_text++;
     if(count_text==1)
     jmp state_print_column2;}
     /* 
       print 2 if search json
       print 2 plus 3 if channel json
     */ 
    <state_print_column2>\&...