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model/model_viz: use OrderedTree[MConcern]
[nit.git]
/
contrib
/
nitcc
/
tests
/
inf5000-06-grammaire2-grammaire.input
1
prods = {many:} prods prod | {one:} prod ;
2
prod = id '=' alts ';' ;
3
alts = {many:} alts '|' alt | {one:} alt ;
4
alt = altid atoms | atoms ;
5
atoms = {many:} atoms atom | {none:} Empty;
6
atom = {id:} id | {str:} str ;