Fix crash on empty text
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8270e6517c
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@ -39,7 +39,8 @@ def optimize_program(code: str, rels: Dict[str, Relation]) -> str:
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lines = code.split('\n')
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lines = code.split('\n')
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context: Dict[str, Node] = {}
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context: Dict[str, Node] = {}
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for line in lines:
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last_res = None
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for line in lines:
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# skip comments or empty lines
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# skip comments or empty lines
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line = line.strip()
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line = line.strip()
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if line.startswith(';') or not line:
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if line.startswith(';') or not line:
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@ -51,6 +52,9 @@ def optimize_program(code: str, rels: Dict[str, Relation]) -> str:
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parsed = tree(query)
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parsed = tree(query)
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_replace_leaves(parsed, context)
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_replace_leaves(parsed, context)
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context[res] = parsed
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context[res] = parsed
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if last_res is None:
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return ''
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node = optimize_all(context[last_res], rels, tostr=False)
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node = optimize_all(context[last_res], rels, tostr=False)
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return querysplit.split(node, rels)
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return querysplit.split(node, rels)
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