Those simple one liners Post: 302793469

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The Lounge What is on Your Mind? Those simple one liners Post 302793469 by MadeInGermany on Friday 12th of April 2013 12:34:27 PM

04-12-2013

Registered User

Quote:

Originally Posted by Corona688

...

There's also some bad habits in trying to squeeze things down to the absolute mininum number of characters. I see this a lot in awk scripts -- using an unused variable instead of "" since it's one character shorter. That's baffling to read later.

Yep, it's already a bad habit to replace an unconditional {print} with 1.
Nerd's artistic license or what?
Professors please! And no nerds!

---------- Post updated at 11:34 AM ---------- Previous update was at 11:26 AM ----------

Quote:

Originally Posted by ahamed101

...

Does this happen to you? You write a 10 liner and "HE" comes in with a one liner and you will be like "what?". Can't agree if someone says it cause of experience not in this case at least. May be our brain misses something sometimes and thinks too complex?

--ahamed

Not really.
If s.o. "beats" me with a shorter and better readable solution, I am happy it can be improved. And hit the Thanks button.
That's another purpose of this forum, isn't it?

MadeInGermany

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ppmtopgm

ppmtopgm(1)                                                   General Commands Manual                                                  ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and  pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

                                                                   10 April 2000                                                       ppmtopgm(1)