cfparser.vim: A codeforces plugin for vim

→ Pay attention

Before contest
2024-2025 ICPC, NERC, Southern and Volga Russian Regional Contest (Unrated, Online Mirror, ICPC Rules, Preferably Teams)
32:46:05
Register now »

→ Top rated

#	User	Rating
1	tourist	4009
2	jiangly	3823
3	Benq	3738
4	Radewoosh	3633
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3390
10	gamegame	3386

Countries | Cities | Organizations

View all →

→ Top contributors

#	User	Contrib.
1	cry	164
1	maomao90	164
3	Um_nik	163
4	atcoder_official	160
5	-is-this-fft-	158
6	adamant	157
6	awoo	157
8	TheScrasse	154
8	nor	154
10	djm03178	153

View all →

→ Find user

→ Recent actions

Detailed →

gabrielsimoes's blog

cfparser.vim: A codeforces plugin for vim

By gabrielsimoes, history, 8 years ago, In English

I have moved from emacs to vim, so I have decided to port gnull's cfparser to vimscript. The result is here.

As gnull's plugin, cfparser.vim can:

Submit solutions
Download tests
Run solution with sample tests
Keep your login through cookies
Open problem statements
Only dependency is curl (and bash, diff and gcc for testing solution)

You can install it with your favorite vim plugin manager, and setup as explained at the project repository:

cfparser.vim

vim, parser, plugin, codeforces

gabrielsimoes
8 years ago
10

Comments (9)

Show archived | Write comment?

gabrielsimoes

8 years ago, # |

Auto comment: topic has been updated by gabrielsimoes (previous revision, new revision, compare).

→ Reply

aspera_

8 years ago, # ^ |

What is a "diff"?

→ Reply

gabrielsimoes

8 years ago, # ^ |

← Rev. 2 →

diff is a linux utility to compare two files. It is included in most linux distros by default. In cfparser.vim, diff is used to compare the expected output and the program output.

→ Reply

aspera_

8 years ago, # ^ |

Thanks.

I installed the cfparser.vim plugin. Can you please elaborate on its usage?For eg.What commands to use? When and where should I type the commands(cfi, cfp etc) mentioned in the project repository.I'm a newbie.

→ Reply

gabrielsimoes

8 years ago, # ^ |

← Rev. 3 →

First, you have to setup your leader key (http://usevim.com/2012/07/20/vim101-leader/) to use the keybindings (note they start with <leader>).

Some commands can be used anywhere, such as login, and list submissions. Others may be used while writing your solution.

Suppose you are writing your solution for problem 342D, name your file or fold hierarchy as mentioned in the repo README, eg: 342D.cpp. Then cfparser.vim will recognize the problem your dealing with when you run the commands to download tests, test your solution, read problem statement and submit your solution.

To run the command that submits your solution, for example, you must be logged in and press the <leader> key, followed by c, f and s.

→ Reply

aspera_

8 years ago, # ^ |

← Rev. 11 →

I couldn't understand the procedure to setup "leader" key for codeforces :(.

Does your plugin work during off-contest?

I wrote the following lines in my .vimrc file:-

  noremap <leader>cfi :CFLogin<CR>
  noremap <leader>cfo :CFLogout<CR>
  noremap <leader>cfw :CFWhoAmI<CR>
  noremap <leader>cfp :CFProblemStatement<CR>
  noremap <leader>cfd :CFDownloadTests<CR>
  noremap <leader>cft :CFTestAll<CR>
  noremap <leader>cfs :CFSubmit<CR>
  noremap <leader>cfl :CFLastSubmissions<CR>

Edit-

I figured out the procedure of setting up the <leader> key.

<leader>cfi
<leader>cfo
<leader>cfw
<leader>cfp

are working fine for me.But, <leader>cfd shows the following error:-

downloading tests for 723/a...                                                                           
Error detected while processing function cfparser#CFDownloadTests..cfparser#CFGetTests..cfparser#CFParseTests:
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2] 
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2] 
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2] 
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2] 
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2] 
line    7:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, input_regex, from)[2] 
line    9:
E117: Unknown function: matchstrpos
E15: Invalid expression: matchstrpos(a:data, output_regex, from)[2]

<leader>cfs shows the following error:-

Error detected while processing function cfparser#CFSubmit:                                              
line   22:
E121: Undefined variable: g:cf_language
E116: Invalid arguments for function printf("curl --location --silent --cookie-jar %s --cookie %s -F 'csrf_token=%s' -F 'action=su
bmitSolutionFormSubmitted' -F 'submittedProblemIndex=%s' -F 'programTypeId=%s' -F \"source=@%s\" '%s://%s/contest/%s/submit?csrf_t
oken=%s'", g:cf_cookies_file, g:cf_cookies_file, csrf_token, problem, g:cf_language, temp_file, s:cf_proto, s:cf_host, contest, cs
rf_token))
E116: Invalid arguments for function system(printf("curl --location --silent --cookie-jar %s --cookie %s -F 'csrf_token=%s' -F 'ac
tion=submitSolutionFormSubmitted' -F 'submittedProblemIndex=%s' -F 'programTypeId=%s' -F \"source=@%s\" '%s://%s/contest/%s/submit
?csrf_token=%s'", g:cf_cookies_file, g:cf_cookies_file, csrf_token, problem, g:cf_language, temp_file, s:cf_proto, s:cf_host, cont
est, csrf_token))
E15: Invalid expression: system(printf("curl --location --silent --cookie-jar %s --cookie %s -F 'csrf_token=%s' -F 'action=submitS
olutionFormSubmitted' -F 'submittedProblemIndex=%s' -F 'programTypeId=%s' -F \"source=@%s\" '%s://%s/contest/%s/submit?csrf_token=
%s'", g:cf_cookies_file, g:cf_cookies_file, csrf_token, problem, g:cf_language, temp_file, s:cf_proto, s:cf_host, contest, csrf_to
ken))
submit: ok [by aspera_ to 723/a]

What is going wrong here?Please help.

→ Reply

gabrielsimoes

8 years ago, # ^ |

← Rev. 4 →

I think this would be better discussed at the issues page on the github repository.

However, which version of VIM are you using, the function matchstrpos should be native, it looks like your VIM version is lacking it.

I just fixed the second error, sorry for this. Please update and check if it is working.

You actually don't need to setup the keybindings, they are already configured by the plugin.

EDIT: I tried replacing the function that was missing on the first error, please update and check if it is working.

→ Reply

aspera_

7 years ago, # ^ |

Now,I'm getting the following error on using :CFLastSubmissions<CR> command:-

Error detected while processing function cfparser#CFLastSubmissions:                                           
line    8:
E706: Variable type mismatch for: cf_response
line   10:
E121: Undefined variable: status
E116: Invalid arguments for function matchstr(cf_response.status, "OK"))
E116: Invalid arguments for function empty(matchstr(cf_response.status, "OK"))
E15: Invalid expression: empty(matchstr(cf_response.status, "OK"))

How can it be fixed?

→ Reply

gabrielsimoes

7 years ago, # ^ |

Ansewered you on GitHub, seems an error on CF API.

→ Reply