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Add Makefile.PL way to rebuild Grammar class #62

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16 changes: 16 additions & 0 deletions doc/Pegex/API.swim
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Expand Up @@ -195,6 +195,8 @@ This command found the file where your grammar is, compiled it, and used
This is what a compiled Pegex grammar looks like. As soon as this module is
loaded, the grammar is ready to be used by Pegex.

=== Automatically rebuilding during development with environment variable

If you find yourself needing to compile your grammar module a lot during
development, just set this environment variable like so:

Expand All @@ -206,6 +208,20 @@ to be recompiled, and do it on the fly.
If you have more than one grammar to recompile, just list all the names
separated by commas.

=== Automatically rebuilding during development using `make`

Alternatively, if your module uses `ExtUtils::MakeMaker`, you can have `make`
automatically rebuild your `Grammar` class if your `.pgx` file is updated.

Simply add this at the bottom of your `Makefile.PL`:

sub MY::postamble {
<<EOF;
lib/MyThing/Grammar.pm : share/expr.pgx
\t\$(PERL) -Ilib -MMyThing::Grammar=compile
EOF
}

= See Also

* [Pegex::Parser]
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