keywords alone cannot be considered as part of the description of a block

[Ellen102]

Custom blocks where a keyword (if,else,end, forever, ...) stands alone as part of the description of the block, are not valid.
For example:

1. if { } jump {} times
2. jump with height {} if {}
3. when {} end

The parser sees the if as a keyword not as a label.
Possible solutions:

• for 2 and 3: match the token only when the token it is at the beginning of a line: begin of file or after a delimiter(assumed whitespace skipped).
• for 1: something with a lookahead.

note:

• if I make the keywords part of the category label the atomic rule is selected above the composite rules.