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Diffstat (limited to 'runtime/Perl5/README')
| -rw-r--r-- | runtime/Perl5/README | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/runtime/Perl5/README b/runtime/Perl5/README new file mode 100644 index 0000000..9bb3fd0 --- /dev/null +++ b/runtime/Perl5/README @@ -0,0 +1,28 @@ +ANTLR::Runtime + +This is the Perl 5 runtime for ANTLR. It is currently under early +development. Most parts are not working yet, and some of those that are need +to catch up with the current development version. The good news is that some +parts are working, as illustrated by the examples. You'd probably want to +take a look at examples/expr/. + + +KNOWN ISSUES +============ + +* Perl's syntax clashes with ANTLR's StringTemplate ('%') and variable ('$') +syntax. Expect error messages like the following. + +error(146): Expr.g:10:10: invalid StringTemplate % shorthand syntax: '%memory' +error(114): Expr.g:18:9: attribute is not a token, parameter, or return value: memory +error(114): Expr.g:36:9: attribute is not a token, parameter, or return value: v + +Currently, it's best to check the syntax of the generated code, like so: + +$ perl -c ExprLexer.pm +ExprLexer.pm syntax OK + +$ perl -c ExprParser.pm +ExprParser.pm syntax OK + +Or use the lexer/parser in an example. |