[mdlug] Another sed/regex question

[Jeff Hanson]

The answer was "t".
http://www.reddit.com/r/commandline/comments/2hmbdy/conditional_actions_ifthenelse_in_sed/

On Sat, Sep 27, 2014 at 6:38 AM, Carl T. Miller <carl at carltm.com> wrote:

> Jeff Hanson wrote:
> > The program is WeiDu, a mod installer for Infinity engine games (Baldur's
> > Gate, etc.) I'm generating a highlighted list based on component IDs that
> > will be installed.
> >
> > weidu output (long lines will wrap in email):
> > [./chitin.key] 357 BIFFs, 54184 resources
> > [./dialog.tlk] 94183 string entries
> > [widescreen/tra/english/setup.tra] has 31 translation strings
> > ~WIDESCREEN/WIDESCREEN.TP2~ #0 #0 // Widescreen Mod -> for the original
> > Infinity Engine (CHOOSE THIS!): Widescreen Mod v3.02
> > ~WIDESCREEN/WIDESCREEN.TP2~ #0 #1 // Widescreen Mod -> for GemRB:
> > Widescreen Mod v3.02
> >
> > First #0 is language ID and doesn't change.  The second #digit is the
> > component ID, followed by two undesirable forward slashes and the
> > component
> > ID description.  Given an installed component ID of 0, output from
> current
> > sed mess is as follows (\x1b is sed replacement hex for ESC):
> >
> > \x1b[1;32m0 Widescreen Mod -> for the original Infinity Engine (CHOOSE
> > THIS!): Widescreen Mod v3.02\x1b[0m
> > \x1b[0;31m1 Widescreen Mod -> for GemRB: Widescreen Mod v3.02\x1b[0m
> >
> > The first matches and is green, the second doesn't and is red.  What I
> use
> > now works but is really ugly.  I'm just looking for a way to choose
> > between
> > two different replacements based on a successful match.  The search
> > pattern
> > uses grouping and the replacements use backreferences to select the ID
> and
> > description from the input.
>
> Okay, now I understand it.  And now I understand that phrase
> "beauty is in the eye of the beholder."  To me your original
> sed line with the two expressions was an elegant solution,
> which I appreciate all the more after finding that sed does
> not have an "else" syntax.
>
> c
>
>
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