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I meant to type:
"Use the prefix ++ operator:"
(It won't work as a postfix operator)
$ perl -e '$x = "z"; print $x++, "\n";'
z
-----Original Message-----
From: Anderson, Tony [mailto:Tony.Anderson [at] travelexamericas.com]
Sent: Monday, February 23, 2004 9:48 AM
To: activeperl [at] listserv.ActiveState.com
Subject: RE: counting differently
Use the prefix operator:
$ perl -e '$x = "a"; print ++$x, "\n";'
b
-----Original Message-----
From: cliff [at] globalmagic.com [mailto:cliff [at] globalmagic.com]
Sent: Monday, February 23, 2004 8:52 AM
To: activeperl [at] listserv.ActiveState.com
Subject: counting differently
Is there a way to force a variable to walk through the alphabet the way it
can numbers?
ie: for numbers: $k=0; $k=$k+1; would give you 1
for letters $k='a'; $k=$k+1; this won't give you 'b'; but is there any way
of doing this that will?
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
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<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004>I =
meant to
type:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN
class=3D736095116-23022004></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004><SPAN =
class=3D177214615-23022004><FONT face=3DArial size=3D2>"Use the prefix =
++
operator:"</FONT></SPAN></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004><SPAN =
class=3D177214615-23022004></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004><SPAN =
class=3D177214615-23022004>(It won't work as a postfix
operator)</SPAN></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004><SPAN =
class=3D177214615-23022004></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D736095116-23022004><SPAN =
class=3D177214615-23022004>$ perl -e '$x =3D "z"; print $x++,
"\n";'<BR>z<BR></SPAN></SPAN></FONT></DIV>
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT face=3DTahoma
size=3D2>-----Original Message-----<BR><B>From:</B> Anderson, Tony
[mailto:Tony.Anderson [at] travelexamericas.com] <BR><B>Sent:</B> Monday, =
February
23, 2004 9:48 AM<BR><B>To:</B>
activeperl [at] listserv.ActiveState.com<BR><B>Subject:</B> RE: counting
differently<BR><BR></FONT></DIV>
<DIV><SPAN class=3D177214615-23022004><FONT face=3DArial size=3D2>Use =
the prefix
operator:</FONT></SPAN></DIV>
<DIV><SPAN class=3D177214615-23022004><FONT face=3DArial
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D177214615-23022004><FONT face=3DArial size=3D2>$ =
perl -e '$x =3D "a";
print ++$x, "\n";'<BR>b<BR></FONT></SPAN></DIV>
<DIV><SPAN class=3D177214615-23022004><FONT face=3DArial
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D177214615-23022004><FONT face=3DArial
size=3D2></FONT></SPAN> </DIV>
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT face=3DTahoma
size=3D2>-----Original Message-----<BR><B>From:</B> =
cliff [at] globalmagic.com
[mailto:cliff [at] globalmagic.com] <BR><B>Sent:</B> Monday, February 23, =
2004 8:52
AM<BR><B>To:</B> activeperl [at] listserv.ActiveState.com<BR><B>Subject:</B> =
counting
differently<BR><BR></FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Is there a way to force a variable to =
walk through
the alphabet the way it can numbers?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>ie: for numbers: $k=3D0; =
$k=3D$k+1; would give
you 1</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>for letters $k=3D'a'; $k=3D$k+1; this =
won't give you
'b'; but is there any way of doing this that will?</FONT></DIV><BR><BR>
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copying,
distribution or use of this message or its contents is prohibited. If =
you have
received this message in error, please notify the sender and delete =
this message
from your system. Employees of the company are prohibited from making =
defamatory
statements and from infringing copyright or any other legal right. Any =
such
communication or infringement is contrary to company policy and outside =
the
scope of employment.</FONT></B></P><BR></BODY></HTML>
<BR>
<BR>
<P><B><FONT SIZE=3D2 FACE=3D"Arial">This electronic message contains =
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