Home » Modeling » M2T (model-to-text transformation) » [JET] How can I make scriptlet not occupy a new line in the generated file?
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| Re: [JET] How can I make scriptlet not occupy a new line in the generated file? [message #39934 is a reply to message #39412] |
Tue, 15 January 2008 10:12   |
Eclipse User |
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JET2 has an algorithm for removing whitespace that it figures might be
unwanted. If you are dealing only with scriptlets and expressions, it comes
down to this:
If the scriptlet starts on a line that is and it is preceded by nothing but
whitespace (blanks, tabs, etc) and ends on a line where it is trailed by
nothing but whitespace, then the JET compiler will remove the preceding
whitespace, the trailing whitespace, and the trailing new-line.
So, the following text in a JET template should have NO effect on the
output:
<% for(int i = 0; i < -1; i++) {%>
nothing
<% } %>
Nor would:
<%
for(int i = 0; i < -1; i++) {
%>
nothing
<%
}
%>
Put anything before <% or after %>, though, and you would get some text
generated (and a new line).
I have played with more sophisticated rules for stripping whitespace, but
have found that they just create confusion, and, in some cases do not do
what you want.
Paul
"Michael" <my25@macs.hw.ac.uk> wrote in message
news:fmai57$o5c$1@build.eclipse.org...
> Hi,
> As we know, in the JET template file, we will embed many Java
> scriplets. If a scriplet appear as a line in the template file, then, in
> the generated file, a blank line is wlso resulted. I think this is not a
> desired situation. I don't know how to make this happne. Please help me.
> Thanks.
> Michael.
>
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| Re: [JET] How can I make scriptlet not occupy a new line in the generated file? [message #40330 is a reply to message #39934] |
Fri, 18 January 2008 09:26 |
| Eclipse User |
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Hi,
Thanks for your help.
Thanks for your ruels. I also found this rule doesn't work sometimes. I
am wandering whether this is a bug of GET.
I hope it would be solved as soon as possible.
Cheers.
Michael.
"Paul Elder" <pelder@ca.ibm.com> wrote in message
news:fmiiis$49t$1@build.eclipse.org...
> JET2 has an algorithm for removing whitespace that it figures might be
> unwanted. If you are dealing only with scriptlets and expressions, it
> comes down to this:
>
> If the scriptlet starts on a line that is and it is preceded by nothing
> but whitespace (blanks, tabs, etc) and ends on a line where it is trailed
> by nothing but whitespace, then the JET compiler will remove the preceding
> whitespace, the trailing whitespace, and the trailing new-line.
>
> So, the following text in a JET template should have NO effect on the
> output:
>
> <% for(int i = 0; i < -1; i++) {%>
> nothing
> <% } %>
>
> Nor would:
>
> <%
> for(int i = 0; i < -1; i++) {
> %>
> nothing
> <%
> }
> %>
>
> Put anything before <% or after %>, though, and you would get some text
> generated (and a new line).
>
> I have played with more sophisticated rules for stripping whitespace, but
> have found that they just create confusion, and, in some cases do not do
> what you want.
>
> Paul
>
> "Michael" <my25@macs.hw.ac.uk> wrote in message
> news:fmai57$o5c$1@build.eclipse.org...
>> Hi,
>> As we know, in the JET template file, we will embed many Java
>> scriplets. If a scriplet appear as a line in the template file, then, in
>> the generated file, a blank line is wlso resulted. I think this is not a
>> desired situation. I don't know how to make this happne. Please help me.
>> Thanks.
>> Michael.
>>
>
>
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| Re: [JET] How can I make scriptlet not occupy a new line in the generated file? [message #40450 is a reply to message #40330] |
Mon, 21 January 2008 11:04 |
| Eclipse User |
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Michael:
Best way to get a problem fixed is to submit a bugzilla, and attach specific
instructions on how to reproduce (or attaching actual problem templates).
Here's the link to submit a bug:
https://bugs.eclipse.org/bugs/enter_bug.cgi?product=M2T& version=unspecified&component=Jet&priority=P3&bu g_severity=normal&bug_status=NEW&form_name=enter_bug &assigned_to=m2t.jet-inbox%40eclipse.org
Paul
"Michael" <my25@macs.hw.ac.uk> wrote in message
news:fmqcuc$orj$1@build.eclipse.org...
> Hi,
> Thanks for your help.
> Thanks for your ruels. I also found this rule doesn't work sometimes. I
> am wandering whether this is a bug of GET.
> I hope it would be solved as soon as possible.
> Cheers.
> Michael.
> "Paul Elder" <pelder@ca.ibm.com> wrote in message
> news:fmiiis$49t$1@build.eclipse.org...
>> JET2 has an algorithm for removing whitespace that it figures might be
>> unwanted. If you are dealing only with scriptlets and expressions, it
>> comes down to this:
>>
>> If the scriptlet starts on a line that is and it is preceded by nothing
>> but whitespace (blanks, tabs, etc) and ends on a line where it is trailed
>> by nothing but whitespace, then the JET compiler will remove the
>> preceding whitespace, the trailing whitespace, and the trailing new-line.
>>
>> So, the following text in a JET template should have NO effect on the
>> output:
>>
>> <% for(int i = 0; i < -1; i++) {%>
>> nothing
>> <% } %>
>>
>> Nor would:
>>
>> <%
>> for(int i = 0; i < -1; i++) {
>> %>
>> nothing
>> <%
>> }
>> %>
>>
>> Put anything before <% or after %>, though, and you would get some text
>> generated (and a new line).
>>
>> I have played with more sophisticated rules for stripping whitespace, but
>> have found that they just create confusion, and, in some cases do not do
>> what you want.
>>
>> Paul
>>
>> "Michael" <my25@macs.hw.ac.uk> wrote in message
>> news:fmai57$o5c$1@build.eclipse.org...
>>> Hi,
>>> As we know, in the JET template file, we will embed many Java
>>> scriplets. If a scriplet appear as a line in the template file, then, in
>>> the generated file, a blank line is wlso resulted. I think this is not a
>>> desired situation. I don't know how to make this happne. Please help me.
>>> Thanks.
>>> Michael.
>>>
>>
>>
>
>
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