The issue is that the regular expression can't balance "{", so it tries
to make the attributes hash out of everything between the first "{" and
the last "}". Thus, if you do something like %td{:colspan => "2"}=
h("Invoice #{invoice.remote_number}") it tries to make an attribute hash
out of {:colspan => "2"}= h("Invoice #{invoice.remote_number}, which of
course fails. I'm not sure why it wasn't failing for you; try this
simpler example:
%p{:foo => 'bar'} {}
This is something we plan to fix before 2.0.
- Nathan
Russell Norris wrote:
> Pardon my ignorance but what exactly _is_ the bug here? I was trying
> to help Spongy on #rubyonrails with this problem. I'm willing to poke
> around more if I understood why it's failing there. I use the same
> exact %tr{:colspan => 6}= line in my code and it works fine. I
> couldn't figure out the problem.
>
> RSL
>
> On 7/23/07, *Nathan Weizenbaum* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
>
> Unfortunately, this is a known bug that's very hard to solve. Since we
> use a regular expression to parse tags, there's no way to handle
> balanced characters like '{' and '}'. The only way to really solve
> this
> would be to move to manually parsing the tag. This is something
> we'd be
> interested in, so if you want to work up a patch for it, go for it
> (check out render_tag in lib/haml/engine.rb).
>
> - Nathan
>
> Spongy wrote:
> > I've been having some problems with one of my templates.
> >
> > These are the template sections and errors I've been getting
> (also at
> > http://pastie.caboo.se/81401 <http://pastie.caboo.se/81401>)
> >
> > ## HAML snippet
> > - payment.invoices.each do |invoice|
> > %tr.invoice
> > %td{:colspan => "2"}= h("Invoice
> #{invoice.remote_number}")
> > %td= number_to_currency(invoice.amount, :unit =>
> "£")
> > %td
> >
> > ## Error
> > (eval):43:in `compile': compile error
> > (eval):32: syntax error, unexpected '}', expecting ')'
> > _hamlout.open_tag("td", nil, true, {}, nil, "\")", :colspan => "2"}=
> > h("Invoice #{invoice.remote_number)
> > ^
>
> > (eval):32: syntax error, unexpected ')', expecting '}'
> > (eval):38: syntax error, unexpected kEND, expecting '}'
> > (eval):42: syntax error, unexpected kEND, expecting '}'
> >
> > ## Full Template
> > - page_title "Your Payments"
> >
> > %table
> > %thead
> > %tr
> > %th ID
> > %th Invoices
> > %th Amount
> > %th Paid on
> > %tbody
> > - @payments.each do |payment|
> > %tr.payment
> > %td= h "Payment #{payment.id <http://payment.id>}"
> > %td= h payment.invoices.count
> > %td= h payment.amount
> > %td= payment.paid_at ?
> payment.paid_at.strftime("%m/%d/%Y") :
> > 'UNPAID'
> > - payment.invoices.each do |invoice|
> > %tr.invoice
> > %td{:colspan => 2}= h("Invoice #{invoice.remote_number}")
> > %td= number_to_currency(invoice.amount, :unit =>
> "£")
> > %td blank
> >
> > ## Attempt 2 Template
> > - page_title "Your Payments"
> >
> > %table
> > %thead
> > %tr
> > %th ID
> > %th Invoices
> > %th Amount
> > %th Paid on
> > %tbody
> > - @payments.each do |payment|
> > %tr.payment
> > %td{:test => :thing}= h "Payment #{payment.id
> <http://payment.id>}"
> > %td= h payment.invoices.count
> > %td= h payment.amount
> > %td= payment.paid_at ?
> payment.paid_at.strftime("%m/%d/%Y") :
> > 'UNPAID'
> > - payment.invoices.each do |invoice|
> > %tr.invoice
> > %td{:colspan => 2}= h("Invoice #{invoice.remote_number}")
> > %td= number_to_currency(invoice.amount, :unit =>
> "£")
> > %td blank
> >
> > ## Attempt 2 Error
> > (eval):42:in `compile': compile error
> > (eval):13: syntax error, unexpected '}', expecting ')'
> > _hamlout.open_tag("td", nil, true, {}, nil, "\"", :test =>
> :thing}= h
> > "Payment #{payment.id <http://payment.id>)
> > ^
> > (eval):13: syntax error, unexpected ')', expecting '}'
> > (eval):28: syntax error, unexpected kDO_BLOCK, expecting '}'
> > payment.invoices.each do |invoice|
> > ^
> > (eval):31: syntax error, unexpected '}', expecting ')'
> > _hamlout.open_tag("td", nil, true, {}, nil, "\")", :colspan => 2}=
> > h("Invoice #{invoice.remote_number)
> > ^
> > (eval):31: syntax error, unexpected ')', expecting '}'
> > (eval):37: syntax error, unexpected kEND, expecting '}'
> > (eval):41: syntax error, unexpected kEND, expecting '}'
> >
> > Eventually I tried changing the "Payment" and "Invoice" strings to
> > ["Payment", payment.id <http://payment.id>].join(' ')
> > and the errors have disappeared.
> >
> > I am using r570 and also had the same problem on r566
> >
> > Any ideas on how or what this is caused by and I can poke around in
> > the engine.
> >
> > Cheers,
> > Geoff
> >
> >
> > >
> >
> >
>
>
>
> >
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