Optimization: Check for implicit anchor#165
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Andersama wants to merge 1 commit intohanickadot:mainfrom
Closed
Optimization: Check for implicit anchor#165Andersama wants to merge 1 commit intohanickadot:mainfrom
Andersama wants to merge 1 commit intohanickadot:mainfrom
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Example: https://gcc.godbolt.org/z/3WvT98bfE |
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In testing without the implicit anchor searching for |
Improves code generation for cases where .* can be treated as an anchor
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Slight improvement on #95
From O'Reilly's book:
Intuition is that
.*and.+collide / consume all the initial characters that don't really match the pattern ergo .* and .+ will consume the entire input string in one go...bumping the initial start position is much like remaining in the .* or .+