Using parsers for transforming

[grigandal625]

It would be very useful to implement the search and processing of fragments of transformable code using parsers

For example, using lark-parser, we could make a transformation like this:

# specifying a fragment grammar with lark syntax (EBNF-like)
# such a grammar could be intended for a fragment like:
# 5 $ 10
grammar = """
    new_operation: NUMBER '$' NUMBER 
    %import common.SIGNED_NUMBER -> NUMBER
"""

@detect(grammar)
def transform(parsed_tree, detected_source, full_source, **kwargs):
    # parsed_tree will be like:
    #
    # new_operation:
    # .... 5
    # .... 10

    return do_smth_with_tree(parsed_tree)

[aroberge]

There is absolutely nothing that prevents you from doing this.

Some existing examples require the use of other libraries. For example, pythonji requires the use of emoji. easy_units require either pint or astropy.

[grigandal625]

You are absolutely right, and I plan to do so. I just wanted to say that in solutions related to language processing, an approach using parsers can greatly simplify the processing task. Accordingly, in my opinion, it would be most appropriate to include such functionality in such solutions. Naturally, everything is at your discretion. Thanks

[aroberge]

If you do so, would you mind adding a link to this issue so that I could see if I could include a similar example in this project?

[grigandal625]

Shure

[grigandal625]

here is an example but just note that I haven't been careful with the architecture of the project yet, so direct copying can cause problems)

[aroberge]

Thanks.