The Accidental Rubyist

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rbcurse continues as “canis”

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rbcurse will only have bug-fixes in it. rbcurse has a tutorial on github, too.

The code has been taken over by Canis (on github and available as a gem). Canis has removed a lot of stuff, and changed things too, 

Please move onto Canis if you are interested. Canis is NOT backward compatible with rbcurse.


Written by totalrecall

August 30, 2014 at 11:09 pm

Posted in Uncategorized

rbcurse no longer maintained

with 2 comments

Due to serious family issues, I will no longer be able to maintain rbcurse or other gems.

They may be taken over, or used as-is. I will continue to receive emails or comments left on this site, and will answer as soon as i can.

Sorry for the inconvenience. I will try to create a proper tutorial for rbcurse-core as a github project since I am unable to update the rubyforge tutorial due to a “Permission denied (publickey,gssapi-keyex,gssapi-with-mic)”. However, the best way of getting started is to see the examples in the examples folder of the project.

Written by totalrecall

March 15, 2014 at 2:21 pm

Posted in ruby

The Future of rbcurse (ruby ncurses)

with 14 comments

A year back I had split rbcurse into rbcurse-core and extras and experimental. Of late, I have been working on a widget called *textpad* to replace textview. It uses pads (which i earlier abhored and avoided) and this really simplifies the logic. I have also used the same textpad as a list, so that now obviates having a separate list class (unless I need to do multiple selection).
I have tested textpad as a textview and a list and a popup in a gem called cygnus. It is the ncurses version of the cetus gem which uses the terminal (I actually use cetus, cygnus is mostly to test out textpad).

I am also working on a replacement for tabular_widget using the same textpad. It extends textpad and only adds a minimal amount of code, but allows most of what tabular_widget allowed, while making it easier to override the rendering. I will release it after using it a little more in my current project. That mostly leaves replacing tree with a pad version.

However, my issue then is how to release these. I could replace the old widgets, but that won’t be backward compatible, and I have made things simpler, so i cannot be totally backward compatible. I could add these to the current project and request people to move over to these new widgets. I could release these as a separate gem….

My next goal after that is to seriously trim down the base. That is form and widget, and also Window, utils etc. This will definitely break everything and require a new gem. There is a lot of stuff that makes the base complex but may never be used. There is also code that really needs a rewrite such as Button and Menu.

Written by totalrecall

April 10, 2013 at 5:22 pm

Posted in ruby

indenting zsh files in vim

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Currently, if you start a function with the function keyword, the function body is not indented. The following line (added the last OR condition) will result in functions being indented.

elseif line =~ ‘^\s*\<\k\+\>\s*()\s*{‘ || line =~ ‘^\s*{‘ || line =~ ‘^\s*function ‘

Not sure whom to contact to get this fixed, or else each update will result in the change being overwritten.

Written by totalrecall

January 13, 2013 at 5:20 pm

Posted in ruby

zfm : fast file selection and directory navigation (zsh/commandline)

with 2 comments

I’ve just uploaded a zsh script for fast navigation, file selection etc. Try it out and give me feedback.

Command-line junkies should appreciate this.
Please submit it to Reddit or Hacker News if you like it.

Written by totalrecall

December 25, 2012 at 3:41 pm

Posted in unix, unixscript, zsh

Auto-update timestamp in files upon Save

with one comment

If you use vim for editing files, you can stick this in your vimrc file, so whenever you save the file, "Last update" gets updated with the current time. If you enhance this script, pls let me know, so we can all benefit.

This requirement is already met by timestamp.vim, but that’s a biggish plugin, and does a lot of other updates, and I just wanted a few lines in my vimrc, and only timestamp updated.

" auto-update last update if there's a update tag
autocmd! BufWritePre * :call s:timestamp()
" to update timestamp when saving if its in the first few lines of a file
function! s:timestamp()
let pat = '\(Last update\s*:\s*\).*'
let rep = '\1' . strftime("%Y-%m-%d %H:%M")
call s:subst(1, 5, pat, rep)
" subst taken from timestamp.vim
" {{{1 subst( start, end, pat, rep): substitute on range start - end.
function! s:subst(start, end, pat, rep)
let lineno = a:start
while lineno <= a:end
let curline = getline(lineno)
if match(curline, a:pat) != -1
let newline = substitute( curline, a:pat, a:rep, '' )
if( newline != curline )
" Only substitute if we made a change
"silent! undojoin
keepjumps call setline(lineno, newline)
let lineno = lineno + 1

" }}}1

Written by totalrecall

November 29, 2012 at 10:30 am

Posted in vim

rbcurse-extras 0.0.0 released

with 9 comments

Finally managed to release rbcurse-extras initial version with a small tweak to vimsplit. I also did some work on Actions for widgets so using ":" or "M-:" could pop up a menu for the current widget. Applications can add to this. This led to upgrades in rbcurse-core, so i’ve released rbcurse-core-0.0.3 with those changes.

I’ve tested out only editable lists and tables (the old programs) in rbcurse-extras, not everything.

The previous version of rbcurse (0.0.2), allows the user to see key-bindings for the current widget/control by pressing "M-?" or "?". It allows user to edit a textbox in vim or EDITOR and also "save as" using the ":"/"M-:" menu. It also introduced History to Field (optional at present), so you need to extend the Field object. History can be popped up using "M-h". I’ve used this in the shell-output dialog.

I’ve done some changes to ncurses settings (cbreak and half-delay) as i found that pressing C-c repeatedly quickly was crashing the app (see earlier posts), Hope this holds up in all cases.

Written by totalrecall

January 5, 2012 at 1:35 pm

Posted in ncurses, rbcurse, ruby