Hi Gregory,
You need to include all trailing tabs to make 56 columns (that would
be 55 tabs). That should work, but I experienced crashes when doing
this. You need to stress-test this feature before distributing your
software, if you plan to distribute it.
In this case, a sqLite or mySql database might be more reliable and
easier in the long term, depending on the size of your data.
As you suggested yourself, an alternative might be to filter the data
to include all lines containing the number you are searching for and
do a repeat loop on the remaining data.
Best regards,
Mark Schonewille
--
Economy-x-Talk Consulting and Software Engineering
http://economy-x-talk.com
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Op 16-jul-2007, om 17:58 heeft Gregory Lypny het volgende geschreven:
Hello Everyone,
I'm struggling with the filter command. I have tab-delimited data
in a field, where each row has at least 56 columns. I want to
filter the data based on a chosen number in that fourth column, for
example, to return all lines that have a 9 there. The fourth
column only contains a number from 1 to 10. The following handler
works most of the time. I put three wild card expressions, lone
asterisks separated by tabs, to make sure nothing is being picked
up in the first three columns. The tab and asterisk (and it could
be just an *) following myNumber says that it doesn't matter what
is in the columns after the fourth.
put fld "Data" of this card into tmpData
filter tmpData with "*" & tab & "*" & tab & "*" & tab & myNumber &
tab & "*"
The trouble is, the first three wild card expressions are
interpreted by Revolution to include tab characters, which means
that I'm not necessarily filtering the fourth column! If a 9
appears by itself in column 58, then the filter command will pick
it up. Sigh.
I also tried the following, but I don't think I have the regular
expression syntax right.
filter it with "[A-Z0-9]" & tab & "[0-9]" & tab & "[A-Z]" & tab
& myNumber & tab & "*"
I know that my first column always contains five words, two of
which are numbers. I wasn't sure how to represent the four spaces
between the words. The second column is always a seven-digit
number. The third contains first and last names, which will
contain at least two words. This turns up empty.
Any advice would be most appreciated. If I can't get the RegEx
working for me, I know I can resort to a repeat loop and pull out
all lines with myNumber in the fourth item.
Regards,
Gregory
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