#{} inside #() inside #{} won't work because the parser does not know to
handle #() so the } for the #{} inside the #() terminates the first #{}.
If you do not use #{} inside your #() it does run, but then you can't
get format variable values for the right window.
I don't think there is a way to do this easily.
On Thu, Feb 25, 2021 at 07:42:29PM +0000, Nicholas Marriott wrote:
> Sorry, I forgot - you can try this (attached) against master. Apply with
> "patch <x.diff".
>
> Then you can check if a window is after the active one with, for
> example:
>
> #{==:#{e/-:#{window_index},1},#{active_window_index}}
>
> Or before it:
>
> #{==:#{e/+:#{window_index},1},#{active_window_index}}
>
> This will only work if you have renumber-windows turned on (so there are
> no gaps in the indexes), but I assume you do or your original idea
> wouldn't work either.
>
> I'll take a look see if your #() way will work in a bit.
>
>
> On Thu, Feb 25, 2021 at 02:18:34PM -0500, Haodong Du wrote:
> > Hi Nicholas,
> > Could you take a look at this issue? It would be nice to do it without
> > digging into the code.
> > For the format.c, is this what I need? Sorry, I didn't really read the
> > code. so could be wrong.
> >
> > format_cb_window_active_idx(struct format_tree *ft)
> > {
> > if (ft->wl != NULL) {
> > return (xstrdup(ft->wl->session->curw->idx))
> >
> > }
> > return (NULL);
> > }
> >
> > Best regards,
> > Haodong Du
> > On Sat, Feb 20, 2021 at 3:26 PM, Nicholas Marriott
> > <[email protected]> wrote:
> >
> > #() will not work with display -p because it stops before the command
> > finishes (it does not wait). In the status line it should work, I don't
> > know why It doesn't. It would be easy to add an additional format
> > variable though and it would be generally useful.
> >
> > On Sat, 20 Feb 2021, 20:20 Haodong Du, <[email protected]> wrote:
> >
> > Thank you Nocholas!
> > I haven't digged into customizing tmux code myself, but would try
> > later.
> > Regarding the #(). I find it's not executing, and found this post
> > that
> > might be related:
> >
> > https://stackoverflow.com/questions/30264679/tmux-titles-string-not-executing-shell-command
> > I'm running HEAD-742e670 (built yesterday) on macos 11.2.1
> > ```bash
> > $ tmux display -pv -F "#{==:#(tmux lsw -f '#{?window_active,1,}' -F
> > '#I'),#I}"
> > # expanding format: #{==:#(tmux lsw -f '#{?window_active,1,}' -F
> > '#I'),#I}
> > # found #{}: ==:#(tmux lsw -f '#{?window_active,1,}' -F '#I'),#I
> > # modifier 0 is ==
> > # expanding format: #(tmux lsw -f '#{?window_active,1,}' -F '#I')
> > # found #(): tmux lsw -f '#{?window_active,1,}' -F '#I'
> > # expanding format: tmux lsw -f '#{?window_active,1,}' -F '#I'
> > # found #{}: ?window_active,1,
> > # condition is: window_active
> > # condition 'window_active' found
> > # condition 'window_active' is true
> > # expanding format: 1
> > # result is: 1
> > # replaced '?window_active,1,' with '1'
> > # found #I: window_index
> > # format 'window_index' found: 4
> > # replaced 'window_index' with '4'
> > # result is: tmux lsw -f '1' -F '4'
> > # expanding format: <'tmux lsw -f '#{?window_active,1,}' -F '#I'' not
> > ready>
> > # found #{}: ?window_active,1,
> > # condition is: window_active
> > # condition 'window_active' found
> > # condition 'window_active' is true
> > # expanding format: 1
> > # result is: 1
> > # replaced '?window_active,1,' with '1'
> > # found #I: window_index
> > # format 'window_index' found: 4
> > # replaced 'window_index' with '4'
> > # result is: <'tmux lsw -f '1' -F '4'' not ready>
> > # #() result: <'tmux lsw -f '1' -F '4'' not ready>
> > # result is: <'tmux lsw -f '1' -F '4'' not ready>
> > # expanding format: #I
> > # found #I: window_index
> > # format 'window_index' found: 4
> > # replaced 'window_index' with '4'
> > # result is: 4
> > # compare == left is: <'tmux lsw -f '1' -F '4'' not ready>
> > # compare == right is: 4
> > # replaced '==:#(tmux lsw -f '#{?window_active,1,}' -F '#I'),#I' with
> > '0'
> > # result is: 0
> > ```
> > within #(), I don't need replacing. So I tried escaping with #. This
> > exited with error. Then I wrapped with echo ``. Looks better now.
> > Still not working.
> > ```bash
> > $ tmux display -pv -F "#{==:#(echo `tmux lsw -f
> > '#{?window_active,1,}'
> > -F '#I'`),2}"
> > # expanding format: #{==:#(echo 4),2}
> > # found #{}: ==:#(echo 4),2
> > # modifier 0 is ==
> > # expanding format: #(echo 4)
> > # found #(): echo 4
> > # expanding format: echo 4
> > # result is: echo 4
> > # expanding format: <'echo 4' not ready>
> > # result is: <'echo 4' not ready>
> > # #() result: <'echo 4' not ready>
> > # result is: <'echo 4' not ready>
> > # expanding format: 2
> > # result is: 2
> > # compare == left is: <'echo 4' not ready>
> > # compare == right is: 2
> > # replaced '==:#(echo 4),2' with '0'
> > # result is: 0
> > ```
> > Best regards,
> > Haodong Du
> > On Sat, Feb 20, 2021 at 2:28 PM, Nicholas Marriott
> > <[email protected]> wrote:
> >
> > I can't try it til next week but if it was me I'd add an
> > active-window-index format in format_defaults_session in format.c
> > and use that instead of the #().
> > Then you could also debug the format using display -pv.
> > On Sat, 20 Feb 2021, 18:42 Haodong Du, <[email protected]> wrote:
> >
> > Hello tmux users,
> > I'm setting up my tmux status line. I want to achieve something
> > like the figure below with powerline triangles. But there are
> > gaps
> > between two window tabs and also with the status left. I want to
> > get rid of gaps completely. So I set all the divider to none. But
> > I still need to set fg and bg properly. Namely, make the triangle
> > bg match the bg of the next tab. In order to do that, I need to
> > know whether the next tab is active or not and whether it's the
> > last tab.
> > ```
> > #{?window_end_flag,#[fg=colour239#,bg=colour237],#{?#{==:#(tmux
> > lsw -f '#{?window_active,1,}' -F
> >
> > '#I'),#{e|+|:#I,1}},#[fg=colour239#,bg=colour214],#[fg=colour239#,bg=colour239]}}i*DEG"
> > ```
> > This is what I came up with. I want to compare the index of
> > active
> > window and this window index plus 1. But this does not seem to
> > work. It always uses the color setting for the false condition.
> > 687474703a2f2f692e696d6775722e636f6d2f694f6a637a2e706e67.png
> > Full config for status line if you want to give it a try:
> > ```
> > set-window-option -g window-status-current-format "\
> >
> > #{?window_start_flag,#[fg=colour195#,bg=colour214],#[fg=colour214#,bg=colour214]}i*DEG\
> > #[fg=colour239, bg=colour214] #I* i*+-\
> > #[fg=colour239, bg=colour214, bold] #W \
> >
> > #{?window_end_flag,#[fg=colour214#,bg=colour237],#[fg=colour214#,bg=colour239]}i*DEG"
> > set-window-option -g window-status-format "\
> >
> > #{?window_start_flag,#[fg=colour195#,bg=colour239],#[fg=colour239#,bg=colour239]}i*DEG\
> > #[fg=colour223,bg=colour239] #I i*+-\
> > #[fg=colour223, bg=colour239] #W \
> > #{?window_end_flag,#[fg=colour239#,bg=colour237],#{?#{==:#(tmux
> > lsw -f '#{?window_active,1,}' -F
> >
> > '#I'),#{e|+|:#I,1}},#[fg=colour239#,bg=colour214],#[fg=colour239#,bg=colour239]}}i*DEG"
> > ```
> > Regards,
> > Haodong Du
> >
> > --
> > You received this message because you are subscribed to the
> > Google
> > Groups "tmux-users" group.
> > To unsubscribe from this group and stop receiving emails from it,
> > send an email to [email protected].
> > To view this discussion on the web, visit
> >
> > https://groups.google.com/d/msgid/tmux-users/3d8a56b9-f36b-4a24-bd52-29a5efdd166an%40googlegroups.com.
> Index: format.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/tmux/format.c,v
> retrieving revision 1.277
> diff -u -p -r1.277 format.c
> --- format.c 24 Feb 2021 09:22:15 -0000 1.277
> +++ format.c 25 Feb 2021 19:40:53 -0000
> @@ -2099,6 +2099,28 @@ format_cb_version(__unused struct format
> return (xstrdup(getversion()));
> }
>
> +/* Callback for active_window_index. */
> +static void *
> +format_cb_active_window_index(struct format_tree *ft)
> +{
> + if (ft->s != NULL)
> + return (format_printf("%u", ft->s->curw->idx));
> + return (NULL);
> +}
> +
> +/* Callback for last_window_index. */
> +static void *
> +format_cb_last_window_index(struct format_tree *ft)
> +{
> + struct winlink *wl;
> +
> + if (ft->s != NULL) {
> + wl = RB_MAX(winlinks, &ft->s->windows);
> + return (format_printf("%u", wl->idx));
> + }
> + return (NULL);
> +}
> +
> /* Callback for window_active. */
> static void *
> format_cb_window_active(struct format_tree *ft)
> @@ -2496,6 +2518,9 @@ struct format_table_entry {
> * Only variables which are added by the caller go into the tree.
> */
> static const struct format_table_entry format_table[] = {
> + { "active_window_index", FORMAT_TABLE_STRING,
> + format_cb_active_window_index
> + },
> { "alternate_on", FORMAT_TABLE_STRING,
> format_cb_alternate_on
> },
> @@ -2630,6 +2655,9 @@ static const struct format_table_entry f
> },
> { "keypad_flag", FORMAT_TABLE_STRING,
> format_cb_keypad_flag
> + },
> + { "last_window_index", FORMAT_TABLE_STRING,
> + format_cb_last_window_index
> },
> { "mouse_all_flag", FORMAT_TABLE_STRING,
> format_cb_mouse_all_flag
> Index: tmux.1
> ===================================================================
> RCS file: /cvs/src/usr.bin/tmux/tmux.1,v
> retrieving revision 1.823
> diff -u -p -r1.823 tmux.1
> --- tmux.1 22 Feb 2021 08:18:13 -0000 1.823
> +++ tmux.1 25 Feb 2021 19:40:54 -0000
> @@ -4756,6 +4756,7 @@ will be replaced by
> The following variables are available, where appropriate:
> .Bl -column "XXXXXXXXXXXXXXXXXXX" "XXXXX"
> .It Sy "Variable name" Ta Sy "Alias" Ta Sy "Replaced with"
> +.It Li "active_window_index" Ta "" Ta "Index of active window in session"
> .It Li "alternate_on" Ta "" Ta "1 if pane is in alternate screen"
> .It Li "alternate_saved_x" Ta "" Ta "Saved cursor X in alternate screen"
> .It Li "alternate_saved_y" Ta "" Ta "Saved cursor Y in alternate screen"
> @@ -4763,7 +4764,6 @@ The following variables are available, w
> .It Li "buffer_name" Ta "" Ta "Name of buffer"
> .It Li "buffer_sample" Ta "" Ta "Sample of start of buffer"
> .It Li "buffer_size" Ta "" Ta "Size of the specified buffer in bytes"
> -.It Li "config_files" Ta "" Ta "List of configuration files loaded"
> .It Li "client_activity" Ta "" Ta "Time client last had activity"
> .It Li "client_cell_height" Ta "" Ta "Height of each client cell in pixels"
> .It Li "client_cell_width" Ta "" Ta "Width of each client cell in pixels"
> @@ -4790,6 +4790,7 @@ The following variables are available, w
> .It Li "command_list_alias" Ta "" Ta "Command alias if listing commands"
> .It Li "command_list_name" Ta "" Ta "Command name if listing commands"
> .It Li "command_list_usage" Ta "" Ta "Command usage if listing commands"
> +.It Li "config_files" Ta "" Ta "List of configuration files loaded"
> .It Li "copy_cursor_line" Ta "" Ta "Line the cursor is on in copy mode"
> .It Li "copy_cursor_word" Ta "" Ta "Word under cursor in copy mode"
> .It Li "copy_cursor_x" Ta "" Ta "Cursor X position in copy mode"
> @@ -4812,6 +4813,7 @@ The following variables are available, w
> .It Li "insert_flag" Ta "" Ta "Pane insert flag"
> .It Li "keypad_cursor_flag" Ta "" Ta "Pane keypad cursor flag"
> .It Li "keypad_flag" Ta "" Ta "Pane keypad flag"
> +.It Li "last_window_index" Ta "" Ta "Index of last window in session"
> .It Li "line" Ta "" Ta "Line number in the list"
> .It Li "mouse_all_flag" Ta "" Ta "Pane mouse all flag"
> .It Li "mouse_any_flag" Ta "" Ta "Pane mouse any flag"
> @@ -4867,8 +4869,8 @@ The following variables are available, w
> .It Li "scroll_position" Ta "" Ta "Scroll position in copy mode"
> .It Li "scroll_region_lower" Ta "" Ta "Bottom of scroll region in pane"
> .It Li "scroll_region_upper" Ta "" Ta "Top of scroll region in pane"
> -.It Li "search_present" Ta "" Ta "1 if search started in copy mode"
> .It Li "search_match" Ta "" Ta "Search match if any"
> +.It Li "search_present" Ta "" Ta "1 if search started in copy mode"
> .It Li "selection_active" Ta "" Ta "1 if selection started and changes with
> the cursor in copy mode"
> .It Li "selection_end_x" Ta "" Ta "X position of the end of the selection"
> .It Li "selection_end_y" Ta "" Ta "Y position of the end of the selection"
--
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