copying selective display

[stevecoh1]

Several years ago, one of the support guys provided me with a SlickEdit macro that copied the filtered contents of a window that was displayed with selective display.  I don't remember if it was copied to clipboard or to a new buffer or whatever.  This was a very useful feature.  Support now indicates it's on the request list.  I believe the macro was called something like "copy_shown()".

Does anyone have this or a similar macro?

[seth]

I was intrigued by this (and the idea of writing my first (relatively) non-trivial macro), so I just whipped this up:

////////////////////////////////////////////////////////////////////////////////////////////
#include "slick.sh"

/*
  Copy the lines currently shown in the current buffer to a new buffer.  This
  should ignore lines that are hidden because of selective display settings.
*/
_command void copy_shown()
{
   lines_copied = 0;

   // Create a new buffer to hold the displayed lines.
   new_file();

   // Switch back to the previous buffer to find the lines to copy.
   _prev_buffer('R');

   push_bookmark();

   // Place cursor on line 0 before first line of the buffer.
   top(); up();

   // Iterate across the lines in the buffer, copying those that are not hidden.
   for (j=1; j<=p_Noflines; j++) {

      // Go down and get the next line.
      if (down()) break;
      get_line(line);

      // If this line is not hidden, copy it to the new buffer.
      if (!(_lineflags() & HIDDEN_LF)) {
         lines_copied++;

         // Switch to the new buffer.
         _next_buffer('R');

         // If we are about to insert the first line into the new buffer,
         // delete any lines we got in that buffer for free.
         if (lines_copied == 1) {
            delete_all();
         }

         // Copy the line.
         insert_line(line);
         // Switch back to the original buffer.
         _prev_buffer('R');
      }
   }

   pop_bookmark();

   next_buffer('R');
   if (lines_copied == 0) {
      close_buffer();
      message('No displayed lines found!');
   }
   else {
      s = lines_copied==1 ? '' : 's';
      message(lines_copied ' line's ' copied to this buffer.');
   }
}

////////////////////////////////////////////////////////////////////////////////////////////

Please be gentle with your comments about this macro. 8-)

Cheers,
  Seth

[Wanderer]

Pretty cool, but somehow a second copy of the original buffer you are copying from is getting opened...
Thanks for posting it.

[seth]

| Wanderer, my macro always copies non-hidden lines into a new buffer; perhaps you invoked it without any lines hidden?

The macro adds a new buffer to the ring and copies every non-hidden line from the current buffer to the new one; if no lines are hidden, every line from the current buffer will be copied.  Try hiding some lines via a selective display action (like "all" or "notall" or View->Function Headings or some such) and run the macro again to see what gets copied.

I guess I should say that I only have v11, so I haven't tested (and can't test) it with earlier versions of VS.

[Wanderer]

| Wanderer, my macro always copies non-hidden lines into a new buffer; perhaps you invoked it without any lines hidden?

I guess I should say that I only have v11, so I haven't tested (and can't test) it with earlier versions of VS.

SlickEdit 11.0.1 on WinXP.  I have one buffer/one MDI window -- gizmo.cpp.  View->Selective Display->Function Definitions.  On the SlickEdit command line: 'copy-shown'.

Now I have three windows -- two with gizmo.cpp, and one with 'Untitled<26>'.

This is just a minor annoyance (I don't think there is anything harmful in this behavior).  Great macro.
Thanks.

[seth]

Weird/interesting.  I did the same thing -- only one buffer/MDI window open with a Java file, the same selective display, and the copy-shown invocation -- and ended up with only two windows, the Java file and the untitled one with the non-hidden lines.  This is also with SlickEdit 11.0.1 on WinXP.

Have you by any chance modified any of the "standard" procedures, like new_file(), that I call from the macro... or, perhaps, something that one of them calls?

In any case, I'm glad you like the macro, even with the quirk.

Seth

[Wanderer]

Have you by any chance modified any of the "standard" procedures, like new_file(), that I call from the macro... or, perhaps, something that one of them calls?

I'm pretty sure I have not modified any of the stock macro files.  So far, I've been able to do what I want with new macros, or ferreting out the events/hooks to use.

There probably is some configuration setting causing our difference in behavior.

[considerphi]

Woah, this works great! I was just trying to do this the other day without a macro and it was a pain. Just as a point of reference, I'm using 10.0.3 and did not have the extra buffer issue. Thanks for a great macro.

[Matthew]

For those getting the "extra buffer",  I have attached a slightly modified version of seth's posting that uses _create_temp_view instead.

[todd_s02]

My slightly different variation... it just extracts any lines matching the regular expression directly into a new buffer.  No need to perform the selective display first.

I end up parsing huge (15+ meg) log files by hand, and wanted to pull out information.  Selective display was alright, but I would need to end up turning on selective display, copying the lines, opening a new buffer, pasting the result in, turning selective display off, then repeating for each set of data.  Thus, this macro was born.

Code: [Select]

_command UTLExtractLines()
{
int SourceWindow;
int DestWindow;

Done = false;

/* Get the string to search for. */

if ((get_string(SearchStr, "RegEx to extract:") == 0) &&
(SearchStr != ''))
{
/* Grab a pointer to the source window. */

SourceWindow = p_active_form;

/* Make a new file, and grab its pointer too.  It became active by
   default. */

new_file();
DestWindow = p_active_form;

/* Save our current position in the source window. */

SourceWindow.save_pos(OrigPos);

SourceWindow.top();

do
{
if (SourceWindow.search(SearchStr, "R<") == 0)
{
SourceWindow.get_line(CurrentLine);

DestWindow._insert_text(CurrentLine"\n");
}
else
{
Done = true;
}
}
while ((SourceWindow.down() == 0) && (Done == false))

/* Finally, restore our original position in the source window. */

SourceWindow.restore_pos(OrigPos);
}
}