Re: strikethrough text in gvim

Hi,

2016/4/26 Tue 15:12:51 UTC+9 Christian Brabandt wrote:
> Hi Ken!
>
> On Mo, 25 Apr 2016, Ken Takata wrote:
>
> > Hi Christian,
> >
> > 2016/4/26 Tue 1:53:17 UTC+9 Christian Brabandt wrote:
> > > Hi Ken!
> > >
> > > On Do, 10 Mär 2016, Ken Takata wrote:
> > >
> > > > Hi,
> > > >
> > > > 2013/10/12 Sat 23:25:06 UTC+9 Ken Takata wrote:
> > > > > Hi Christian,
> > > > >
> > > > > 2013/07/31 Wed 4:56:39 UTC+9 Christian Brabandt wrote:
> > > > > > Attached is a patch to try out. It seems to work for me with GTK
> > > > > > and Motif Gui. I am a Unix gui and can't say for sure the code for
> > > > > > Windows and Mac is actually correct and works, though.
> > > > >
> > > > > I checked your patch on Windows. It works fine. I checked it with
> > > > > the following process:
> > > > >
> > > > > > gvim -N foo.html
> > > > > :syn enable :syn region htmlStrike start="<del\>" end="</del>"me=e-6
> > > > > contains=@htmlTop :hi def htmlStrike term=strikethrough
> > > > > cterm=strikethrough gui=strikethrough i<del>foo</del>
> > > > >
> > > > >
> > > > > > Secondly, I am unsure about the changes to term.c and term.h I
> > > > > > don't know, if these changes are actually needed, so I simply took
> > > > > > the undercurl code as an example and changed it so it would fit
> > > > > > for strikethrough.
> > > > >
> > > > > I think it is better to add term cap entries. Currently, termcap
> > > > > doesn't support strikethrough attributes, so we have to use our own
> > > > > attribute names. (E.g. 't_Ts'/'t_Te' or 't_SS'/'t_SE') I also think
> > > > > that a new flag (e.g. 't' or 'S') should be added in the 'highlight'
> > > > > option.
> > > > >
> > > > > I and Hayaki Saito updated your patch to add them. After applying
> > > > > this patch and setting escape sequences properly,
> > > > >
> > > > > let &t_Ts="\e[9m" let &t_Te="\e[29m"
> > > > >
> > > > > some terminals (*) will show strikethrough lines.
> > > > >
> > > > > (*) RLogin: http://nanno.dip.jp/softlib/man/rlogin/ (Japanese)
> > > > > pangoterm: https://launchpad.net/pangoterm/
> > > >
> > > > I found that this patch cannot be used for GTK3, but I don't know how
> > > > to fix it. I hope someone can fix this.
> > >
> > > Seems like you did fix this with the latest version here:
> > > https://bitbucket.org/k_takata/vim-ktakata-mq/src/9e19c0c57c4812557e7750629de02986249a5246/strikethrough.diff?fileviewer=file-view-default
> >
> > I made a fix but I haven't tested it yet.
> >
> > > Seems to work fine for me. Bram, I think this might be a nice addition
> > > for vim 8.
> >
> > Thank you for checking. Does it work both with GTK2 and GTK3?
>
> ,----
> | :syn region htmlStrike start="<del>"ms=s+5 end="</del>"me=e-6
> | :hi def htmlStrike gui=strikethrough term=strikethrough
> | i<del>foobar</del>
> `----
>
> This works in GTK2 and GTK3 gui but I couldn't check the terminal, since
> I don't have a terminal that has this capability

Thank you for checking.
Now I check with Win32 GUI and also with terminal (mintty). Both works fine.
As I wrote before, I have to set the following esc sequences:

let &t_Ts="\e[9m"
let &t_Te="\e[29m"

Hayaki Saito told me that xterm (with patch#305) also supported these sequences.
Is it better to set these sequences as default when $TERM is xterm?


Regards,
Ken Takata

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