incorrect jsp parsing

hi.

I am getting, what seems to be incorrect parsing from IDEA on the following line of code in a jsp:

"/>]]>


The problem is with the "<%=. The parser interprets the <%= as the beginning of an expression so when it gets to the \"ECAP\" IDEA higlights an invalid escape sequence. Which is not true.

This construct is part of a taglib, that is used throughout our project and is completely valid!

Any one encounter this before?

Florian Hehlen
comj

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Hi!

FH> The problem is with the "<%=. The parser interprets the <%= as the
FH> beginning of an expression so when it gets to the \"ECAP\" IDEA
FH> higlights an invalid escape sequence. Which is not true.

Sorry, but your code is invalid. You must use:
"ECAP", but not \"ECAP\"

Thanks!

Alexey Efimov - Java Developer
Tops BI
http://www.topsbi.com


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&gt; Sorry, but your code is invalid. You must use:
&gt; "ECAP", but not \"ECAP\"
&gt;

well... you should tell that to my jsp compiler :) cause it compiles and runs. Without the back-slashes the jsp does not even compile...

You need to take a close look at the code cause its jsp code generating jsp... which is why the IDEA parser is confused.

Florian

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Hello!

FH> well... you should tell that to my jsp compiler :) cause it
FH> compiles and runs. Without the back-slashes the jsp does not even
FH> compile...

Very strange, becouse scriplet is pure java code... That JSP engine you
using?

Alexey Efimov - Java Developer
Tops BI
http://www.topsbi.com


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To avoid the issue altogether, wouldn't it be best to use single quotes in
your tag like this:

'/>
]]>




"Florian Hehlen" <florian.hehlen@ubsw.com> wrote in message
news:24593662.1083230908714.JavaMail.itn@is.intellij.net...

hi.

>

I am getting, what seems to be incorrect parsing from IDEA on the

following line of code in a jsp:
>

"/>]]>

>

The problem is with the "<%=. The parser interprets the <%= as the

beginning of an expression so when it gets to the \"ECAP\" IDEA higlights an
invalid escape sequence. Which is not true.
>

This construct is part of a taglib, that is used throughout our project

and is completely valid!
>

Any one encounter this before?

>

Florian Hehlen
comj

>


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Very strange, becouse scriplet is pure java code...
That JSP engine you
using?


As you say, it's pure java, so ...

"<%=hasPlans.containsKey("ECAP")%>"

...cannot be a vailid string. it has to be:

"<%=hasPlans.containsKey(\"ECAP\")%>"

...including the 2 '\'

these jsp's are used with WebSphere 4

Florian

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I believe that Alexey is correct;

The content of the scriptlet is pure java code, not including the tags:

hasPlans.containsKey("ECAP")

is valid java code, while

hasPlans.containsKey(\"ECAP\")

is not.

"Florian Hehlen" <florian.hehlen@ubsw.com> wrote in message
news:5435432.1083243665164.JavaMail.itn@is.intellij.net...

Very strange, becouse scriplet is pure java code...
That JSP engine you
using?

>

As you say, it's pure java, so ...

>

"<%=hasPlans.containsKey("ECAP")%>"

>

..cannot be a vailid string. it has to be:

>

"<%=hasPlans.containsKey(\"ECAP\")%>"

>

..including the 2 '\'

>

these jsp's are used with WebSphere 4

>

Florian



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I agree about the use of single quotes as a solution...

Although I am still left with a lot of code that compiles and IDEA that reports it as incorrect! I can't even turn that type of highlighting off...

What I wonder now is if this is a problem with WebSphere or with the JSP spec... will have to see if I can test one of those jsp's in an other environment.

Florian

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Hello, Florian!
You wrote on Thu, 29 Apr 2004 17:01:05 +0400 (MSD):

FH> ..cannot be a vailid string. it has to be:
FH> "<%=hasPlans.containsKey(\"ECAP\")%>"
FH> ..including the 2 '\'
FH> these jsp's are used with WebSphere 4

Maybe you are right... I check out our project and find similar places in
our code. But it only in taglibs.

<c:myTag myAttr="<%=\"MyValue\"%>" />

It realy compile and work, so, please, excuse me for my previous post, - it
just not very good implementation of JSP engine...

BTW, as for my Orion server, follow is euals and both work:
<c:myTag myAttr="<%=\"MyValue\"%>" />
<c:myTag myAttr="<%="MyValue"%>" />

Thanks!

Alexey Efimov - Java Developer
Tops BI
http://www.topsbi.com


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It realy compile and work, so, please, excuse me for
my previous post, - it
just not very good implementation of JSP engine...


So... the question now is.... should I file this one as a bug and request that the JSP parser in IDEA not highlight this as an error?

BTW I was told by an other developer here that our JSPs used to also run on JRun perfectly well with the same use of escape characters.

later... an have a good weekend,
Florian.

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