SKIP node with SKIP neighbors

Grammar tests > SKIP node with SKIP neighbors

The error message

"X" is a SKIP node with SKIP neighbors

appears, if in one alternative more than one SKIP node is contained.

Until now, in TETRA has no algorithm to treat such cases.

Example:

Rule1 ::=

(

"TETRA"

| SKIP

)*

Rule2 ::=

(

"Texttransformer"

| SKIP

)*

Rule3 ::= Rule1 | Rule2

A simple reformulation resolves the problem here:

Rule3  ::=

(

"TETRA"

|"Texttransformer

| SKIP

)*

The situation is more difficult, if the neighbored SKIP nodes belong to different kinds of structures.

This page belongs to the TextTransformer Documentation