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Single letters must always be enclosed in quotes in string operations so
that they are treated as letters, and not as calculation variables. For
example: 

For more information, see beginswith. 

<@CALC EXPR="Henry beginswith 'H'"> evaluates the string "Henry" to see if
it begins with the string "H" (case-insensitive). 


How about putting the "E" in quotes like this

Original
<@IFEQUAL "39149E20021231" "39006E20021231">
  Problem
</@IF>

<@IFEQUAL "39149'E'20021231" "39006'E'20021231">
  Problem
</@IF>

-----Original Message-----
From: Kevin Quinn [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 18, 2003 3:59 PM
To: [EMAIL PROTECTED]
Subject: RE: Witango-Talk: When are these strings equal (Tango 2k)


You could alternately use an @OMIT to remove the letters (if you know
for a fact that there is only ever 1 letter in your string), or an @KEEP
to keep all the numbers.

-----Original Message-----
From: Anthony M. Humphreys [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, March 18, 2003 4:53 PM
To: [EMAIL PROTECTED]
Subject: RE: Witango-Talk: When are these strings equal (Tango 2k)



I was initially using the @IFEQUAL tag on these two strings, like so 

<@IFEQUAL '<@VAR aa>'  '<@VAR bb>'>

where aa = 39149E20021231 and
where bb = 39006E20021231

so that it would be expanded out to this:

<@IFEQUAL '39149E20021231' '39006E20021231'>

and these two strings were always comparing true. I then translated this
into an @CALC so that I could see if Tango really thought these two
strings equal.

So Kevin, are you telling me that any strings that have numbers and the
letter "E" in them will be substituted with "2.718281828459045"? Or that
the letter "G" in string will substituted with "0.381966011250105", etc?

Wow, it DOES fail for G,E,L,P,Q,I,J,X also!

These all fail to behave "predicatably"!
<@CALC "39149G20021231"> <@CALC "39149E20021231"> 
<@CALC "39149L20021231"> <@CALC "39149P20021231">
<@CALC "39149Q20021231"> <@CALC "39149I20021231">
<@CALC "39149J20021231"> <@CALC "39149X20021231">

It's way too late to change the strings, and Tango does not have a text
specific equality test method, like it does for "contains", "beginswith"
and "endswith". So I guess I use always use JavaScript to do these
comparisons going forward. What a pain!

so now it's

<@IF <@SCRIPT EXPR="if (server.getVariable('local$aa') ==
server.getVariable('local$bb')) {'1'; } else {'0';};">>

which works predictably




-----Original Message-----
From: Kevin Quinn [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 18, 2003 3:39 PM
To: [EMAIL PROTECTED]
Subject: RE: Witango-Talk: When are these strings equal (Tango 2k)


'E' is a defined CALC variable. Unless you're planning on using natural
logs, don't use E. Try a 'Z' or something.

-----Original Message-----
From: Anthony M. Humphreys [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, March 18, 2003 3:34 PM
To: [EMAIL PROTECTED] Com (E-mail)
Subject: Witango-Talk: When are these strings equal (Tango 2k)



I was doing this comparison and it was True in Tango 2k!!

<@CALC "'39149E20021231'='39006E20021231'">

In this particular data set the last eight characters are always equal
anyways, so I was able to work around it by truncating the last eight
chars in the comparison like so: 

<@CALC EXPR="'<@LEFT STR="39149E20021231" NUMCHARS="<@CALC
'len(39149E20021231) - 8'>">'='<@LEFT STR="39006E20021231"
NUMCHARS="<@CALC 'len(39006E20021231) - 8'>">'">

But still, these two strings are NOT equal by any stretch of the
imagination. Any one care to guess what Tango has done to compare these
two strings equal? 

I'd hate to run into this one again!


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