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selective whitespace trimming

 
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blotter45
Voice


Joined: 28 Feb 2005
Posts: 17
PostPosted: Sat Apr 22, 2006 12:50 am    Post subject: selective whitespace trimming Reply with quote
heya guys, I'm just looking for a quick way to trim out certain whitespaces from a string. Here is a proc that just takes a seconds input, takes the [duration seconds] value, and trims it down (so weeks becomes w, days becomes d, and so on):

Code:

proc sr:shortdur { t } {
  set t [duration $t]
  regsub -all -- {years?} $t {y} t
  regsub -all -- {weeks?} $t {w} t
  regsub -all -- {days?} $t {d} t
  regsub -all -- {hours?} $t {h} t
  regsub -all -- {minutes?} $t {m} t
  regsub -all -- {seconds?} $t {s} t
  return $t
}


so a duration of "2 weeks 3 days 14 minutes 36 seconds" then becomes "2 w 3 d 14 m 36 s", but then I'd like to trim the spaces between the number and w,d,m,s so that it becomes: "2w 3d 14m 36s".. So is regsub also the best way to do that, or can you recommend another method?
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demond
Revered One


Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
PostPosted: Sat Apr 22, 2006 1:50 am    Post subject: Reply with quote
use this:
Code:

proc duration {t} {
   set days [expr $t / (3600 * 24)]
   set hour [expr ($t - (3600 * 24 * $days)) / 3600]
   set mins [expr (($t - (3600 * 24 * $days)) % 3600) / 60]
   if $days {append str "$days day(s), "}
   if $hour {append str "$hour hour(s), "}
   return [append str "$mins minute(s)"]
}

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De Kus
Revered One


Joined: 15 Dec 2002
Posts: 1361
Location: Germany
PostPosted: Sat Apr 22, 2006 2:31 am    Post subject: Reply with quote
why not simply adding the whitespace to the re, if you really love these slow things?
Code:
{ years?}

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blotter45
Voice


Joined: 28 Feb 2005
Posts: 17
PostPosted: Sat Apr 22, 2006 2:55 am    Post subject: Reply with quote
De Kus wrote:
why not simply adding the whitespace to the re, if you really love these slow things?
Code:
{ years?}


Actually I took your advice and applied it to string map instead of regsub, much better Wink

Code:

proc sr:shortdur { t } {
  set t [duration $t]
  set t [string map {" years" "y" " year" "y"} $t]
  set t [string map {" weeks" "w" " week" "w"} $t]
  set t [string map {" days" "d" " day" "d"} $t]
  set t [string map {" hours" "h" " hour" "h"} $t]
  set t [string map {" minutes" "m" " minute" "m"} $t]
  set t [string map {" seconds" "s" " second" "s"} $t]
  return $t
}


Thanks for the help guys!
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