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akosthekiss avatar akosthekiss commented on June 15, 2024

@kaby76 Some quick comments:

  • I haven't seen anything like missing tokens from the test case before. With simple_space_serializer, the only way not to output a token is when it is empty (i.e., node.src is falsy, see https://github.com/renatahodovan/grammarinator/blob/master/grammarinator/runtime/serializer.py#L21). But a COMMA in your example is ',', which is truthy. So, this should not happen (even if it obviously does in your case).
  • If you want to tweak things here and there, you might want to tweak the serializer instead of generate.py. Either modify simple_space_serializer (linked above), or write your own serializer and specify it from the command line using the -s or --serializer switch (https://github.com/renatahodovan/grammarinator/blob/master/grammarinator/generate.py#L244). It should be simply a function that gets the root node of the tree and should return a string form of it. You could easily add any debug code there.
  • Alternatively/additionally, you might also tweak Tree.print to give more details. E.g., at https://github.com/renatahodovan/grammarinator/blob/master/grammarinator/runtime/tree.py#L69, perhaps something like print('%s%s (%s)' % (' ' * indent, node.name, getattr(node, 'src', ''))). (I haven't tested this. It may or may not be useful for you.)
  • If you want to load saved trees, you can write from grammarinator.runtime import Tree in your script (or directly in the interactive interpreter), assuming that you have grammarinator already installed in your (virtual) environment. Then, Tree.load("path/to/test_xxx.grt") will work.

from grammarinator.

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