Shane Hathaway writes:
> - You have to be careful not to use double quotes in expressions. > (Ampersands and less-than/greater-than signs are tricky too. Watch out > for pairs of hyphens!)
This is FUD. TAL can handle these things quite well; the "problem" is that many web developers don't have a clear understanding of layers of encoding (a seriously unfortunate state of affairs, though understandable given the time pressures of creating/updating a site). Encoding quotes inside an attribute values means that the expression (Python or not) is harder to read, but if it doesn't still work, there's a bug in the implementation. I'll be glad to donate some of my time to fix any such bugs.
Othan than this, I agree with you on this topic.
I'm not quite sure what you're saying. The following fails compilation:
<span tal:content="python: "abc"" />
Hence you need to be careful not to use double quotes in expressions. I run into this every day.
I'm a little wary of expressions like this:
<span tal:content="python: 1 > 0" />
... being converted by buggy XML or HTML software to this (I've seen it happen before):
<span tal:content="python: 1 > 0" />
Finally, if you use a pair of hyphens in an expression and later use XML syntax to comment it out while leaving the pair of hyphens, the block is technically not well-formed.
http://www.w3.org/TR/REC-xml#sec-comments
For example:
<!-- <span tal:content="python: 'What should we do--walk or run?'" /> -->
This is not something that should bother anyone, but I wanted to support my assertion. ;-)
Shane
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