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Top Forums UNIX for Advanced & Expert Users Need pattern matching in vi editor Post 302488427 by wempy on Monday 17th of January 2011 05:55:57 AM
Old 01-17-2011
you could use a macro if your version of vi supports them - i've been using vim so long I can no longer remember what the original vi can do.

the macro could be:
Code:
$F_d$j

$ - go to end of line
F_ go back to the first occurance of a _
d$ - delete to the end of line
j move down one line

which can be run over the whole file by going to the top of the file and 999@a (or whatever register you save the macro to, and also change the number of times to run to match the number of lines (or greater) in the file.

Last edited by wempy; 01-17-2011 at 06:57 AM.. Reason: clarification of macro command
This User Gave Thanks to wempy For This Post:
 

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BlackPixelOfScreen(3X11)					     MIT X11R4						  BlackPixelOfScreen(3X11)

Name
       BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen, DefaultColormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen, DefaultVisualOf-
       Screen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen, EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen, Max-
       CmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen - screen information functions and
       macros

Syntax
       BlackPixelOfScreen(screen)

       WhitePixelOfScreen(screen)

       CellsOfScreen(screen)

       DefaultColormapOfScreen(screen)

       DefaultDepthOfScreen(screen)

       DefaultGCOfScreen(screen)

       DefaultVisualOfScreen(screen)

       DoesBackingStore(screen)

       DoesSaveUnders(screen)

       DisplayOfScreen(screen)

       int XScreenNumberOfScreen(screen)
	  Screen *screen;

       EventMaskOfScreen(screen)

       HeightOfScreen(screen)

       HeightMMOfScreen(screen)

       MaxCmapsOfScreen(screen)

       MinCmapsOfScreen(screen)

       PlanesOfScreen(screen)

       RootWindowOfScreen(screen)

       WidthOfScreen(screen)

       WidthMMOfScreen(screen)

Arguments
       screen	 Specifies a pointer to the appropriate structure.

Description
       The macro returns the black pixel value of the specified screen.

       The macro returns the white pixel value of the specified screen.

       The macro returns the number of colormap cells in the default colormap of the specified screen.

       The macro returns the default colormap of the specified screen.

       The macro returns the default depth of the root window of the specified screen.

       The macro returns the default GC of the specified screen, which has the same depth as the root window of the screen.

       The macro returns the default visual of the specified screen.

       The macro returns or which indicate whether the screen supports backing stores.

       The macro returns a Boolean value indicating whether the screen supports save unders.

       The macro returns the display of the specified screen.

       The function returns the screen index number of the specified screen.

       The macro returns the root event mask of the root window for the specified screen at connection setup.

       The macro returns the height of the specified screen.

       The macro returns the height of the specified screen in millimeters.

       The macro returns the maximum number of installed colormaps supported by the specified screen.

       The macro returns the minimum number of installed colormaps supported by the specified screen.

       The macro returns the number of planes in the root window of the specified screen.

       The macro returns the root window of the specified screen.

       The macro returns the width of the specified screen.

       The macro returns the width of the specified screen in millimeters.

See Also
       AllPlanes(3X11), ImageByteOrder(3X11), IsCursorKey(3X11)
       X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys

															  BlackPixelOfScreen(3X11)
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