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Item3649: Only one %REV{}% statement per line

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AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Extension RevisionLinkPlugin Normal Closed TWiki:Main.KennethLavrsen n/a  

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Applies To:
Current State:
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Target Release:
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Plugin version: 18 May 2006 (2.0 - SVN 10228)

It seems that you can have only one REV per line. I think this a bug.

For example, the following statement provides only one output:

Test1: %REV{"TestTopic1" rev="1"}% Test2: %REV{"TestTopic1" rev="2"}%

Test1: TestTopic1(1)

Expected output:
Test1: TestTopic1(1) Test2: TestTopic1(2)

This is quite annoying for example when you would like to use REV in tables.

-- TWiki:Main/SamiMertaranta - 16 Feb 2007

I know why.

The plugin has a strange syntax rule allowing brackets so the tag is not handled in a very optimal way. And there is a plain bug in the plugin.

You need the following to fix it: A '?' put the right place.

Find the line in RevisionLinkPlugin.pm that says

  $_[0] =~ s/%REV[{\[](.*)[}\]]%/&handleRevision($1, $_[1], $_[2])/geo;

and replace it with

  $_[0] =~ s/%REV[{\[](.*?)[}\]]%/&handleRevision($1, $_[1], $_[2])/geo;

The technical explanation is that the regex was greedy.

When you write

Test1: %REV{"TestTopic1" rev="1"}% Test2: %REV{"TestTopic1" rev="2"}%

Then the '.*' part of the regex matches as much as it can between %REV{ and }%

So it eats almost the entire line

"TestTopic1" rev="1"}% Test2: %REV{"TestTopic1" rev="2"

The little ?-mark makes the regex non-greedy matching only

"TestTopic1" rev="1"

and in the 2nd round

"TestTopic1" rev="2"

I will check in a fix later today when I am home at my SVN checkout and upload a new rev of the plugin.

-- TWiki:Main.KennethLavrsen - 16 Feb 2007

New version uploaded

-- TWiki:Main.KennethLavrsen - 16 Feb 2007

Summary Only one %REV{}% statement per line
ReportedBy TWiki:Main.SamiMertaranta
Codebase 4.0.0
SVN Range

AppliesTo Extension
Component RevisionLinkPlugin
Priority Normal
CurrentState Closed
WaitingFor TWiki:Main.KennethLavrsen
Checkins 12903 12904
TargetRelease n/a

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Topic revision: r4 - 2007-02-16 - KennethLavrsen
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