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@@ -7,6 +7,10 @@ For example, the rule `node: child1 child2` will create a tree node with two chi |
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Using `item+` or `item*` will result in a list of items, equivalent to writing `item item item ..`. |
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Using `item?` will return the item if it matched, or nothing. |
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Using `[item]` will return the item if it matched, or the value `None`, if it didn't. It's possible to force `[]` to behave like `()?`, by using the `maybe_placeholders=False` option when initializing Lark. |
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### Terminals |
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Terminals are always values in the tree, never branches. |
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