hselect’s missing field broken?

Jason Quinn wrote on Jan 02, 2009

I noticed today that the hselect command on my system is not working properly when the missing parameter is used. This is odd because it was working about half a year ago. My only guess is that somehow the v2.14.1 patch did something to mess it up. Let's just see if anybody else can reproduce the problem.

cl>imcopy dev$pix testfile.fits

cl>hselect testfile.fits  $I,object yes
testfile.fits   "m51  B  600s"

cl>hselect testfile.fits  $I,$object yes missing="dilbert"
testfile.fits   dilbert

The object keyword is defined in dev$pix as you can see. I am using the dollar sign prefixing, indicating that I want to use the missing capability but it still prints the missing field even though the keyword isn't missing.

Jason

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Mike Fitzpatrick wrote on Jan 02, 2009

Hi Jason,

Thanks for the report, I could easily reproduce the problem but since the hedit/hselect tasks weren't changed since the initial v2.14 release so I think you might be mistaken about seeing this work previously. In any case I've posted a buglog describing the problem.

If you want to change the code yourself, the file to edit is images$imutil/src/hedit.x at about line 610, change the code to read:

        if (field[1] == '$' && field[2] == 'I')
            call strcpy (image, strval, maxch)
        else if (field[1] == '$') 
            call imgstr (im, field[2], strval, maxch)
        else
            call imgstr (im, field, strval, maxch)

To relink, login as 'iraf' and

% cd $iraf
% mkpkg redhat              # reset architecture
% cd pkg/images
% mkpkg update             # relink and install

Cheers,
-Mike

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Last post on Jan 02, 2009