From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of Jason Wong Sent: Friday, March 31, 2000 12:35 PM To: Send Zope Mailing List Subject: [Zope] Assigning strings using DTML-LET

I'm trying to assign the string:

1=1

to the variable criteria using this construct:

<dtml-let criteria='1=1'>

but I can't because Zope complains:

Unlike other tags, the dtml-let tag is quote-sensitive, requiring that attribute values are quoted. So in the above code, you're trying to evaluate the expression "1=1", which isn't valid Python code (you're trying to assign a value to a value). What you want is: <dtml-let criteria="'1=1'">

thanks - Jason Wong

-- Alexander Staubo / http://alex.mop.no/ "The difference between theory and practice is that, in theory, there is no difference between theory and practice."

Jason Wong wrote:

I'm trying to assign the string:

1=1

to the variable criteria using this construct:

<dtml-let criteria='1=1'>

but I can't because Zope complains:

invalid parameter: "=1'", for tag <dtml-let criteria='1=1'>, on line 5 of Create_List

Some playing around reveals that it doesn't like spaces and the equals sign (=) in the string.

Am I correct in thinking that something delimited by single quotes (eg. 'this is a string') is a string? If so why can't I (or how can I) include spaces and the equal sign inside the string.

<dtml-let criteria=="'1=1'"> should work. In dtml-let, you write one pair of quotes to specify that your're writing a python expression. Inside quotes you're writing python. Examples of valid python expressions: 'this is a string' 23 methodname You can wrap up any of the above inside a pair of double quotes and then use it in <dtml-let> HTH, Shalabh ______________________________ Shalabh Chaturvedi icq://43284067 http://advogato.org/person/shalabh/

Jason Wong wrote:

I'm trying to assign the string:

1=1

to the variable criteria using this construct:

<dtml-let criteria='1=1'>

but I can't because Zope complains:

invalid parameter: "=1'", for tag <dtml-let criteria='1=1'>, on line 5 of Create_List

Some playing around reveals that it doesn't like spaces and the equals sign (=) in the string.

Am I correct in thinking that something delimited by single quotes (eg. 'this is a string') is a string? If so why can't I (or how can I) include spaces and the equal sign inside the string.

thanks - Jason Wong

_______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

You should try, instead : <dtml-let criteria="'1=1'"> A string is an expression, and expressions must be enclosed in double-quotes... Regards, P.-J. Grizel