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99 lines
2.8 KiB
ReStructuredText
99 lines
2.8 KiB
ReStructuredText
Working with the screen and history buffer contents
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======================================================
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.. warning::
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The pipe action has been deprecated in favor of the
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:doc:`launch <launch>` action which is more powerful.
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You can pipe the contents of the current screen and history buffer as
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:file:`STDIN` to an arbitrary program using the ``pipe`` function. The program
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can be displayed in a kitty window or overlay.
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For example, the following in :file:`kitty.conf` will open the scrollback
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buffer in less in an overlay window, when you press :kbd:`F1`::
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map f1 pipe @ansi overlay less +G -R
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The syntax of the ``pipe`` function is::
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pipe <input placeholder> <destination window type> <command line to run>
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The piping environment
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--------------------------
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The program to which the data is piped has a special environment variable
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declared, ``KITTY_PIPE_DATA`` whose contents are::
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KITTY_PIPE_DATA={scrolled_by}:{cursor_x},{cursor_y}:{lines},{columns}
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where ``scrolled_by`` is the number of lines kitty is currently scrolled by,
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``cursor_(x|y)`` is the position of the cursor on the screen with ``(1,1)``
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being the top left corner and ``{lines},{columns}`` being the number of rows
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and columns of the screen.
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You can choose where to run the pipe program:
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``overlay``
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An overlay window over the current kitty window
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``window``
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A new kitty window
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``os_window``
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A new top-level window
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``tab``
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A new window in a new tab
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``clipboard, primary``
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Copy the text directly to the clipboard. In this case the specified program
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is not run, so use some dummy program name for it.
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``none``
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Run it in the background
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Input placeholders
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--------------------
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There are various different kinds of placeholders
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``@selection``
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Plain text, currently selected text
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``@text``
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Plain text, current screen + scrollback buffer
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``@ansi``
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Text with formatting, current screen + scrollback buffer
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``@screen``
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Plain text, only current screen
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``@ansi_screen``
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Text with formatting, only current screen
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``@alternate``
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Plain text, secondary screen. The secondary screen is the screen not currently displayed. For
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example if you run a fullscreen terminal application, the secondary screen will
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be the screen you return to when quitting the application.
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``@ansi_alternate``
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Text with formatting, secondary screen.
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``@alternate_scrollback``
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Plain text, secondary screen + scrollback, if any.
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``@ansi_alternate_scrollback``
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Text with formatting, secondary screen + scrollback, if any.
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``none``
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No input
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You can also add the suffix ``_wrap`` to the placeholder, in which case kitty
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will insert the carriage return at every line wrap location (where long lines
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are wrapped at screen edges). This is useful if you want to pipe to program
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that wants to duplicate the screen layout of the screen.
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