SYNOPSIS

This grammar deals with the famous ambiguous PL/I phrase:

if then=if then if=then

The (partial) solution uses YYExpect in the lexical analyzer to predict the token that fulfills the parser expectatives.

Compile it with:

eyapp -b '' PL_I_conflict.eyp

Run it with;

./PL_I_conflict.pm -t

or

./PL_I_conflict.pm -d -t

To install Parse::Eyapp, copy and paste the appropriate command in to your terminal.

cpanm Parse::Eyapp

perl -MCPAN -e shell
install Parse::Eyapp

For more information on module installation, please visit the detailed CPAN module installation guide.

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