Bug 338637

Description Jose Carlos 2011-03-02 05:00:42 EST

Build Identifier: 20100917-0705

It's a bug related to a post in the xtext forum: http://www.eclipse.org/forums/index.php?t=msg&S=f99336c0482f91bbef398fc7a7547a8d&th=204862

With this grammar:

Root     : model+=MyModel* ;
MyModel  : head=Head "[" ( body=Body )? "]";
Head     : name+=Tag ( ',' name+=Tag )* ;
Tag      : name+=TagImpl+;
TagImpl  : name=ID;
Body     : name+=BodyImpl+;
BodyImpl : name=ID "=" (value=ID)? ";"  ;

and these formatting rules:

c.setLinewrap().after             ( g.getMyModelAccess().getLeftSquareBracketKeyword_1() );
c.setIndentationIncrement().after ( g.getMyModelAccess().getLeftSquareBracketKeyword_1() );

c.setLinewrap().before             ( g.getMyModelAccess().getRightSquareBracketKeyword_3() );
c.setIndentationDecrement().before ( g.getMyModelAccess().getRightSquareBracketKeyword_3() );
c.setLinewrap().after              ( g.getMyModelAccess().getRightSquareBracketKeyword_3() );

I expect something like:

one , two three [
    four = five ;
]
six seven [
    eight = nine ;
]

but the result is:

one , two three [
    four = five ;
] six seven [
    eight = nine ;
]



The error happens when the "Head" model contains more than one "Tag" model, which is represented as a comma separated list. If "Head" is composed by only one "Tag" model containing several "TagImpl" models (so there's no commas) everything is correct.

Reproducible: Always

Steps to Reproduce:
a) Include several "Tag" models in a "Head" model and the formatting is wrong
b) With only one "Tag" model (no commas in "Head") the formatting is correct