Optimize pattern matching #6
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This commit optimizes the pattern matching by adding a fast path for the `hardLiteral`. If the `hardLiteral` (the longest literal in the pattern) is not found in the input, the pattern matching is skipped. This avoids unnecessary calls to `bytes.Index` and improves the performance of the `Test` function.
This commit renames the `hardLiteral` field to `longestLiteral` to better reflect its purpose. This field holds the longest literal in the pattern and is used to quickly discard non-matching lines.
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