Simulates the behaviour of a Web Browser regarding the management of Web Pages and tabs using a Stack and a Queue Data Structures.

The tabs are stored using linked lists, so that a new tab is always the last element of the list and the first deleted tab will always be the last element of the list.

The Global History is stored using a Generic Queue data structure, and the Downloads queue is implemented using a Priority Queue, the priority of an element being decided by the remaining bytes to be downloaded (generated randomly).

The Back and Forward actions relative to a Tab are stored using a Stack data structure.

Available Commands:

• set_band - sets the download speed (default: 1 KBps)
• newtab - adds a new empty tab to the tabs list
• deltab - deletes the last added tab
• change_tab <tab_index> - navigates to the specified indexed tab
• print_open_tabs
• goto - accesses the web page given by
• back/forward - navigating through the Back/Forward Stacks
• history - prints the current global history
• del_history <nr_entries> - deletes the specified number of entries from the global history (del_history 0 to delete it all)
• downloads - prints the current state of the Downloads Queue
• list_dl - prints the downloadable resources that the current web page offers
• download <index_resource> - adds to the Priority Queue the resource with the specified index, from the current Web Page
• wait - advances the downloads' current stage with specified time

Usage Example:
./CLIB in_file out_file

in_file:
set_band 102400
goto URL1
goto URL2
list_dl
download 1
downloads
newtab
goto URL3
change_tab 0
goto URL4
newtab
goto URL5
print_open_tabs
list_dl
download 2
deltab
downloads
print_open_tabs
wait 25
downloads

out_file:
[0 - "URL2-(0)" : 86570845]
[1 - "URL2-(1)" : 7927001]
[2 - "URL2-(2)" : 62482]
[3 - "URL2-(3)" : 76084628]
[4 - "URL2-(4)" : 5305591]
[5 - "URL2-(5)" : 21035621]
[6 - "URL2-(6)" : 13171437]
["URL2-(1)" : 7927001/7927001]
(0: URL4)
(1: URL3)
(2: URL5)
[0 - "URL5-(0)" : 76084628]
[1 - "URL5-(1)" : 5305591]
[2 - "URL5-(2)" : 21035621]
[3 - "URL5-(3)" : 13171437]
...
["URL2-(1)" : 7619801/7927001]
["URL5-(2)" : 21035621/21035621]
(0: URL4)
(1: URL3)
["URL2-(1)" : 5059801/7927001]
["URL5-(2)" : 21035621/21035621]